View the latest trenchless technology tenders

View the latest Trenchless Technology tenders

Relining of Gravity Main – Biloela
Issued by:
Banana Shire Council
Closing date: 29 January 2019
Location: Queensland
Description: Banana Shire Council invites submissions from interested parties as part of its annual works program for the Sewerage networks. The work will be conducted at the township of Biloela, with the price schedule in the Tender Response (Part 3) outlining the estimated quantities for this work.

Water Main Renewals
Issued by:
Goulburn Mulwaree Council
Closing date:
29 January 2019
Location:
New South Wales
Description:
Goulburn Mulwaree Council is seeking Tenders from suitably qualified contractors for water main replacement in the city of Goulburn. Council have identified 13 water mains in need of replacement.

CCTV Pipe Survey Equipment
Issued by:
Brisbane City Council
Closing date: 30 January 2019
Location: Queensland
Description: Council is seeking quotations for most cost-effective option for the supply, manufacturing, delivery and commissioning of CCTV pipe survey equipment.

Main Street West Bairnsdale Water Main Replacement
Issued by:
 East Gippsland Water
Closing date: 1 February 2019
Location: Victoria
Description: East Gippsland Water is investing in the future to improve services to our customers. This tender is for the construction of two sections of water main:

  1. Approximately 820 m of DN 150 water main on the south side of Main Street Bairnsdale, between Collins Street (603 Main Street) and 681 Main Street.
  2. Approximately 100 m of DN 100 water main on the north side of Main Street Bairnsdale, between Peart Street and 684 Main Street Bairnsdale.

Construction of Seventh Bend Branch Sewer 03, Melton South
Issued by:
Western Water
Closing date: 1 February 2019
Location: Victoria
Description: Western Water invites tenders from contractors experienced in infrastructure works for the installation of a sewer main in Melton South. Works involve the construction of 575 m DN 375 and DN 300 PVC sewer main through Seventh Bend Estate, Melton South.

Supply and Installation of Reinforced Concrete Drainage Pipe via Slurry Microtunnelling
Issued by:
City of Swan
Closing date: 6February 2019
Location: Western Australia
Description: The principal is seeking tenders for the supply and installation of reinforced concrete drainage pipes via slurry microtunnelling along William Street and across Morrison Road, Midland. The installation includes two drainage pits and extension of 750 mm diameter pipes.

Droughtmaster Drive Water Main Replacement
Issued by:
Mackay Regional Council
Closing date: 12 February 2019
Location: Queensland
Description: Mackay Regional Council requires a contractor to construct a new reticulation water main at Ceder Street, Droughtmaster Drive and Hay Point Road, Hay Point. This project involves the construction of a new DN 63 high density polyethylene (HDPE) water main, including a new pressure reducing valve and installation of the water services to residential properties.

Sandy Bay Road – Sewer Line Refurbishment
Issued by:
Tasmanian Water and Sewerage Corporation
Closing date:
14 February 2019
Location:
Tasmania
Description:
TasWater is seeking submissions from suitably qualified and experienced parties for the provision of design and construction services to refurbish the DN 600 sewer main located at 480 Sandy Bay Road, Hobart.  A compulsory site visit is scheduled for 10.30am, Thursday 31 January 2019.

Detailed Design and Construction of the Scone to Murrurundi Pipeline
Issued by:
 Upper Hunter Shire Council
Closing date:
 14 February 2019  
Location: 
New South Wales
Description:
 Upper Hunter Shire Council is seeking tenders from suitably experienced companies to undertake the detailed design and construction of the Scone to Murrurundi Pipeline. The scope of work includes the detailed design and construction of a 40 km water pipeline from Scone to Murrurundi including pump stations and water tanks. This will be a design development and construct contract in accordance with the documents and performance specification contained within council’s tender package.

Sewer Inspection and Refurbishment Works – Various Sites
Issued by:
Shoalhaven City Council          
Closing date: 28 February 2019
Location: New South Wales
Description: The work to be undertaken includes the cleaning of sewer mains, provision of a visual inspection of the internal condition of sewer mains and record of junction location project file and a hard copy inspection report, installation of liners into nominated existing sewer mains, remote cutting, de-rooting and sealing of existing services at house service junctions.

CPBJHJV – West Gate Tunnel Project – any opportunities
Issued by: John Holland and CPB Contractors
Closing date:
 30 June 2020
Location: Victoria
Description: The West Gate Tunnel Project is a city-shaping project that will deliver a vital alternative to the West Gate Bridge. Various civil construction and tunnelling works are required for this project, including services for building a 2.8 km eastbound tunnel and a 4 km westbound tunnel under Yarraville.

Each fortnightly edition of the Trenchless Australasia e-newsletter includes a list of tenders relevant to no-dig contractors, suppliers and manufacturers.

The information is provided by Australian Tenders, which is renowned for being an Australia-wide locally owned and operated tender notification service.

Australian Tenders is also offering readers of Trenchless Australasia an extra three months on their subscription plans. Email support@australiantenders.com.au for more information.

For more tender information visit the Australian Tenders website.

If you have a tender you would like promoted in Trenchless Australasia contact Head of Editorial Nick Lovering at nlovering@gs-press.com.au

McConnell Dowell sets Direct Pipe world record

The MTBM, located at Watercare’s Army Bay Wastewater Treatment Plant in Whangaparaoa, New Zealand, completed what is currently the longest ever stretch of pipe laid by the Direct Pipe® tunnelling methodology.

According to the contractor, McConnell Dowell, the installation is a new world record.

The MTBM is being used to replace an old 2.8 km outfall pipeline.

On Friday 13 July, the NZ$6.2 million (AU$5.8 million) Herrenknecht MTBM surpassed the previous record of 1,495 m set in Texas, US last year.

Direct Pipe is a Herrenknecht trademarked MTBM that combines the benefits of microtunnelling and horizontal directional drilling into one machine, allowing the borehole to be excavated as a prefabricated pipeline is installed in one long drive.

The Direct Pipe system has been designed to achieve drive speeds of up to 30 m a day and is generally used to install pipelines under rivers and other large bodies of water in Europe.

“This is the first time the Direct Pipe system has been used in New Zealand,” said McConnell Dowell Project Manager Chris Powell.

“As a consequence we weren’t constrained by traditional applications and were able to use the Direct Pipe system it in ways not explored before.

“We set some pretty high expectations, we learnt much and achieved a real global step-change in how this new tunnelling technology can be used.”

Herrenknecht Asia Pipeline Expert and Area Sales Manager Ben Hayes congratulated McConnell Dowell on using the method to achieve a world record.

“The hands-on site team have been particularly impressive in their ability to adapt and overcome hurdles encountered – along with the support of Herrenknecht site personnel with their considerable Trenchless Technology expertise – to ensure an efficient and safe execution with a technology that was essentially new to them,” said Mr Hayes.

Construction upgrades to the treatment plant began in August 2017 and is expected to be completed in early 2019.

For more information visit the McConnell Dowell website.

An in-depth article on the project was featured in the December edition of Trenchless Australasia. Click here to view the magazine on your PC, Mac, tablet or mobile device.

If you have a project you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

Image courtesy McConnell Dowell.

First published 24 July 2018.

MTBM completes major works under Melbourne

The 9 m long, 1.5 m diameter MTBM has been installing more than 700 m of new sewer main under Melbourne’s CBD between Lonsdale Street to Flinders Lane as part of City West Water’s Spencer Street Sewer Upgrade.

The new sewer will connect with an existing pipeline to support the population growth in city over the next 35 years.

Quinn Civil is the Principal Contractor of the project, with microtunnelling operations subcontracted to Bothar Boring.

Update

On Friday 21 December 2018, City West Water announced that the Spencer Street Sewer Upgrade was complete, finished ahead of schedule, safely and within budget.

The upgraded sewer has been connected to service residents and commuters who live and work along Spencer Street, increasing the existing capacity of the 122-year-old sewer by approximately 25 times.

An in-depth article on the project was featured in the June edition of Trenchless Australasia. Click here to view the magazine on your PC, Mac, tablet or mobile device.

For more information visit the City West Water website.

If you have news that you would like included in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

Image courtesy Quinn Civil.

First published 25 June 2018.

Project update: Forrestfield-Airport Link

Having safely installed more than 18,000 segments and completed 33 per cent of the route, TBM Grace has been fitted with new cutterhead teeth, with Sandy to receive the same treatment in the coming weeks.

The machines are now tunnelling between Airport Central and Redcliffe Station, so tunnel one has been closed between the Airport and Forrestfield for the construction of two new cross passages to start.

Microtunnelling works

At the 400 m long dive structure in Bayswater – forming the entry and exit point of the tunnels – more than 30,000 t material has been excavated so far.

The microtunnelling to install a main drain has also been completed, and a section of road along Whatley Crescent has been reopened.

Emergency egress shafts (EES)

The three emergency egress shafts along the alignment of the tunnel are now well underway, with the EES near Abernathy Road now poured and set to begin staircase, lift shaft and ancillary building construction.

For more information visit the Forrestfield-Airport Link website.

If you have a project you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

First published 19 September 2018.

Bulimba Creek hits milestones

The utility’s microtunnel boring machine (MTBM), Sewey, has completed its journey two years after it began work on the AU$55 million Bulimba Creek Stage 2 Sewer Upgrade which will carry wastewater to the Gibson Island Sewage Treatment Plant.

On 12 November, the MTBM made the breakthrough into Settlers Street Park at Carindale, marking the end of tunnelling for the Bulimba CreekSewer Upgrade.

Following this, a 22 m sewer pipe supplied by RPC made of glass reinforced plastic was successfully lifted and lowered into a 25 m deep shaft in Carindale for a maintenance hole on the sewer line.

Queensland Urban Utilities Project Manager Will Campbell said reaching breakthrough was a significant milestone for the project.

“After months of chewing her way through hard rock, Sewey emerged without the colourful design created by Easts Mt Gravatt Junior Rugby League Club member Caitlin Gamble,” he said.

“Most importantly though, she completed her mission.

“The new trunk sewer from Carindale to Mansfield will meet the needs of future growth in southeast Brisbane until 2050 and cater for an additional 271,000 people.”

During the project, 4.25 km of new sewer main was installed, with the majority using modern trenchless technology.

“As it’s a gravity trunk sewer, we’ve been working at depths of up to 50 m below ground, so using modern technology was paramount to reduce the impact on the wider community and environment,” said Mr Campbell.

“We thank residents for their patience while we’ve constructed this essential infrastructure, which enhances the liveability of our communities.”

Weather permitting, final works are expected to be finished by March 2019.

For more information visit the Queensland Urban Utilities website.

If you have a project you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

View the latest trenchless technology tenders

View the latest Trenchless Technology tenders

Woodgate Vacuum Sewer Main – Stage 2
Issued by:
Bundaberg Regional Council
Closing date: 20 November 2018
Location: New South Wales
Description: The Woodgate Vacuum Sewer Main (Stage 2) is an extension of the Stage 1 sewerage network with the intent to transfer additional sewer inflow to the new Woodgate Sewer Pump Station. The scope of works is as follows:

  • supply and installation of approximately 568 m of OD125 PE100 PN12.5 from chainage 1191 to 1758
  • supply and Installation of associated bends and fittings
  • Commissioning of the pipeline
  • preparation and submission of ADAC documentation.

Eliwana Project – Grade Control Reverse Circulation Drilling
Issued by:
 FMG Solomon Pty Ltd
Closing date: 20 November 2018
Location: Western Australia
Description: expressions of interest for the Grade Control Reverse Circulation Drilling, scope to include:

  • provision of labour, materials, equipment, supervision and expertise to carry out grade control reverse circulation drilling
  • maintenance of drill rigs, ancillary equipment and mobilisation/demobilisation
  • holes to be drilled vertically downwards or angled and generally between 20–120 m, larger depths may be required.

Horizontal Directional Drilling
Issued by:
 Sydney Trains
Closing date: 21 November 2018
Location: News South Wales
Description: Opportunity to construct 13 underbores and ULX’s with option of extra 33 parallel underbores and 7 ULX’s to deliver in July 2019. The work under this project is to construct a new combined services route to house copper backbone cabling to replace the existing direct buried 38 pair cable between Gosford and Broadmeadow.

Irrigation Mains Replacement Program
Issued by:
 Lower Murray Water
Closing date: 22 November 2018
Location: Victoria
Description: Lower Murray Water is seeking tenders from experienced and competent contractors to design and construct 10 irrigation mains in the Mildura region, northwest Victoria.

Sewer Main Renewals Program 2018/19
Issued by:
GWMWater
Closing date: 22 November 2018
Location: Victoria
Description: GWMWater invites tender submissions for its Sewer Main Renewals Program 2018/19. This contract includes two separable portions of works which both include CCTV inspections, cleaning, reinstatement and connection of household lines and branches:

  1. Relining of approximately 7,100 m of mains
  2. Relining of household connection branches

Bordeaux Lane Stormwater Rehabilitation
Issued by:
City of Swan
Closing Date: 28 November 2018
Location: Western Australia
Description: The principal is seeking tenders for the rehabilitation of the stormwater drainage system along Bordeaux Lane, Western Australia. The system has significant defects along approximately 1,000 m of 900 mm diameter stormwater pipe and the principal is seeking tenders for an in-situ structural pipe relining of 400 m. Defects also exist in the side entry pits and repairs to these are included in this package of works.

Construction of Davis Rd Dual Water Mains and Connections to Melbourne Geelong Pipeline
Issued by:
City West Water
Closing date: 5 December 2018
Location: Victoria
Description: City West Water requests tenders from contractors for the construction of works in the Tarneit area. Approximately 1.4 km of DN 500/560 Dual Water Mains in Davis Road, Tarneit.  Approximately 500 m of GRP and MSCL pipelines between 500 mm and 972 mm diameter. Four offtakes from the Melbourne Geelong Pipeline including PRVs, flow meters and associated works

Sewer Maintenance, Jetting Maintenance, CCTV Inspection and Vacuum Loading
Issued by:
City of Kalgoorlie-Boulder
Closing date: 6 December 2018
Location: Western Australia
Description: Tenders are invited for the sewer maintenance and jetting maintenance, CCTV inspection and vacuum loading.

Metro Tunnel – Rail Systems Alliance – Any Opportunities
Issued by:
 Victorian Department of Economic Development, Jobs, Transport and Resources; Transport – Metro Tunnel Project; Rail Systems Alliance
Closing date: 31 December 2018
Location: Victoria
Description: The Metro Tunnel Project will deliver two 9 km rail tunnels from South Kensington to South Yarra including five new underground stations, as part of a new Sunbury to Cranbourne/Pakenham line. Expressions of interest are requested from interested parties.

Yass to Murrumbateman Water Transfer System
Issued by:
Public Works Advisory
Closing date: 15 January 2019
Location: News South Wales
Description: Construction of a new water transfer pumping station at Yass, including high voltage electricity network augmentation; A 17.9 km water transfer pipeline consisting of a combination of DN250 diameter DICL and PVC pipes from Yass to Murrumbateman; and a 0.5 km water distribution main (DN300 PVC) at Murrumbateman. A mandatory pre-tender meeting is being held on Tuesday, 27 November at 10.30am at Yass Valley Council Chambers.

CPBJH JV – West Gate Tunnel Project – any opportunities
Issued by: John Holland Pty Ltd and CPB Contractors Pty Ltd
Closing date: 30 June 2020
Location: Victoria
Description: The West Gate Tunnel Project is a city-shaping project that will deliver a vital alternative to the West Gate Bridge. Various civil construction and tunnelling works are required for this project, including services for building a 2.8 km eastbound tunnel and a 4 km westbound tunnel under Yarraville.

Each fortnightly edition of the Trenchless Australasia e-newsletter includes a list of tenders relevant to no-dig contractors, suppliers and manufacturers.

The information is provided by Australian Tenders, which is renowned for being an Australia-wide locally owned and operated tender notification service.

Australian Tenders is also offering readers of Trenchless Australasia an extra three months on their subscription plans. Email support@australiantenders.com.au for more information.

For more tender information visit the Australian Tenders website.

If you have a tender you would like promoted in Trenchless Australasia contact Head of Editorial Nick Lovering at nlovering@gs-press.com.au

NDDU

Infrastructure conference to explore future of NSW 

Taking place on 21–22 November at the Sydney International Convention Centre, the event has lined-up industry leaders to present throughout the conference, including Infrastructure NSW CEO Jim Betts and Sydney Motorway Corporation CEO Dennis Cliché.

In the coming years, the state will inject more than AU$14 billion into state transport infrastructure in order to properly accommodate development, including Sydney Motorway Corporation’s WestConnex.

The motorway, which will lead to the new Badgerys Creek airport, will form part of Sydney’s integrated transport plan, designed to ease congestion in the city while creating a connected community.

The project is approaching its halfway point in 2019, with WestConnex expected to be delivered by 2024.

WSA Co CEO Graham Millett will also speak at the conference, exploring the construction of the new airport.

Located in western Sydney, the project recently broke ground, with construction expected to begin next year and be completed by 2026, providing thousands of residents in the area increased transport and job opportunities.

Mr Millett will discuss the airports position as a pillar of Western Sydney’s growth area, covering the commercial, residential and cultural opportunities it will bring to the state.

The conference will also discuss A Metropolis of Three Cities, which aims to plan for the current and future needs of the Greater Sydney region.

For more information visit the NSW Major Projects Conference website.

If you have an event you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins to discuss promotional opportunities at cjenkins@gs-press.com.au

Project update: Forrestfield-Airport Link

Having safely installed more than 18,000 segments and completed 33 per cent of the route, TBM Grace has been fitted with new cutterhead teeth, with Sandy to receive the same treatment in the coming weeks.

The machines are now tunnelling between Airport Central and Redcliffe Station, so tunnel one has been closed between the Airport and Forrestfield for the construction of two new cross passages to start.

Microtunnelling works

At the 400 m long dive structure in Bayswater – forming the entry and exit point of the tunnels – more than 30,000 t material has been excavated so far.

The microtunnelling to install a main drain has also been completed, and a section of road along Whatley Crescent has been reopened.

Emergency egress shafts (EES)

The three emergency egress shafts along the alignment of the tunnel are now well underway, with the EES near Abernathy Road now poured and set to begin staircase, lift shaft and ancillary building construction.

For more information visit the Forrestfield-Airport Link website.

If you have a project you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

Rail Projects Victoria opens tunnelling training centre

The AU$16 million Victorian Tunnelling Centre – modelled on the Tunnelling and Underground Construction Academy established in London, UK – will train local workers to deliver tunnelling projects across Victoria, including the Metro Tunnel Project.

The facility, which will be built hat Holmesglen Institute’s Chadstone campus, will feature a replica tunnel with full-height entrance, three multi-purpose engineering rooms and training facilities allowing work simulation and virtual reality experiences.

Holmesglen will offer both existing and new courses at the tunnelling centre, including Certificate and Diploma qualifications as well as safety-based training for working underground.

The centre is slated to be opened in 2019, and it is anticipated that up to 5,000 students will participate in the training courses each year by 2021.

For more information visit the Rail Projects Victoria website.

If you have news you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

Queensland Urban Utilities’ MTBM completes 800 m drive

Last year, the MTBM completed an 852 m excavation, which at that time was the longest drive of a machine of its size.

Since then, the machine has microtunnelled three additional drives totalling 2,236 m, including this most recent 800 m, 1.8 m diameter section.

Work on the project includes a new 4.25 km sewer main southeast of Brisbane, between Wecker Road, Mansfield, and Cadogan Street, Carindale.

The existing Bulimba Creek Trunk Sewer comprises 62 km of sewer pipes ranging in diameter from 375 mm to 1,650 mm and will provide water and sewerage services to more than 158,000 customers.

Mid-tier infrastructure provider Abergeldie Complex Infrastructure and civil engineering contractors Obayashi Corporation comprise the joint venture, which is designing and constructing the Stage 2 upgrade.

Stage 1 and 1A of the Bulimba Creek upgrade were completed in 2004–06 and 2011–13 in Mansfield, Wishart, Eight Mile Plains and MacGregor.

Stage 2 is expected to be completed by in 2018.

For more information visit the Queensland Urban Utilities website.

If you have a project you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

CRL construction begins at Mount Eden

With the existing stormwater pipe currently in the path of the new CRL tunnels, a section of the pipe will be diverted to create a new alignment between Water and Nikau Streets.

CRL will demolish buildings in the area to make way for shafts to be dug at Water and Ruru Streets.

Shafts at the two streets will provide underground access for a microtunnel boring machine that will simultaneously excavate and install a new stormwater pipe.

The tunnel will be completed in a single drive from Water to Ruru Streets, while a third shat at Mount Eden Road will provide future access to the main via a manhole.

The surface work for the diversion will be on CRL-owned property, causing a minimal effect on traffic.

More than two hectares of land have been bought around the station for the project.

For more information visit the City Rail Link website.

If you have a project you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

McConnell Dowell sets Direct Pipe world record

The MTBM is located at Watercare’s Army Bay Wastewater Treatment Plant in Whangaparaoa, New Zealand.

According to the contractor, McConnell Dowell, the installation is a new world record.

The MTBM is being used to replace an old 2.8 km outfall pipeline.

On Friday 13 July, the NZ$6.2 million (AU$5.8 million) Herrenknecht MTBM surpassed the previous record of 1,495 m set in Texas, US last year.

Direct Pipe is a Herrenknecht trademarked MTBM that combines the benefits of microtunnelling and horizontal directional drilling into one machine, allowing the borehole to be excavated as a prefabricated pipeline is installed in one long drive.

The Direct Pipe system has been designed to achieve drive speeds of up to 30 m a day and is generally used to install pipelines under rivers and other large bodies of water in Europe.

“This is the first time the Direct Pipe system has been used in New Zealand,” said McConnell Dowell Project Manager Chris Powell.

“As a consequence we weren’t constrained by traditional applications and were able to use the Direct Pipe system it in ways not explored before.

“We set some pretty high expectations, we learnt much and achieved a real global step-change in how this new tunnelling technology can be used.”

Herrenknecht Asia Pipeline Expert and Area Sales Manager Ben Hayes congratulated McConnell Dowell on using the method to achieve a world record.

“The hands-on site team have been particularly impressive in their ability to adapt and overcome hurdles encountered – along with the support of Herrenknecht site personnel with their considerable Trenchless Technology expertise – to ensure an efficient and safe execution with a technology that was essentially new to them,” said Mr Hayes.

Construction upgrades to the treatment plant began in August 2017 and is expected to be completed in early 2019.

For more information visit the McConnell Dowell website.

If you have a project you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

Image supplied by McConnell Dowell

Trenchless Australasia teams up with Australian Tenders

Each fortnightly edition of the Trenchless Australasia e-newsletter will now include a list of tenders relevant to no-dig contractors, suppliers and manufacturers.

The information is provided by Australian Tenders, which is renowned for being an Australia-wide locally owned and operated tender notification service.

Australian Tenders is also offering readers of Trenchless Australasia a 25 per cent discount on subscription plans. Email support@australiantenders.com.au for more information.

Under Bore Construction
Issued by:
 Townsville City Council
Closing date: 27 June 2018
Location: Queensland
Description: The alignment of the pipeline includes crossing beneath Transport and Main Roads state controlled roads and a Queensland Rail rail corridor, which require an enveloper pipe to be installed under this contract constructed by trenchless construction (pipejacking). Works under this contract include the trenchless construction of the enveloper pipelines by pipejacking.

Sewer Rehabilitation Term Contract
Issued by: Wannon Water
Closing date: 27 June 2018
Location: Victoria
Description: The works include, but are not necessarily limited to, the supply of all materials, plant and labour of whatever kind necessary to complete the whole of the works associated with the following: conducting pre-inspections using CCTV as per specification provide in Appendix B, design, advising the principal of the proposed lining method and pipe or liner class, works planning, cleaning of sewers to be lined prior to commencement of lining works, lining of sewers and more.

Farmlands Pipe Replacement – Site 3-24 Southern Cross
Issued by:
 Water Corporation
Closing date: 3 July 2018
Location: Western Australia
Description: Water Corporation is inviting organisations with suitable experience, capability and capacity to submit a bid for a section of pipe to be replaced on the existing SN main due to the condition of the main. The project involves replacement of approximately 50 m of pipe underlay with new mild steel cement lined pipe.

Stormwater Tunnelling
Issued by: Department of Defence – Larrakeyah Barracks Redevelopment and Facilities to Support Naval Operations in the North
Closing date: 9 July 2018
Location: Northern Territory
Description: Contract includes supply of all plant, labour and materials required for approximately 680 m of tunnel boring to suit specified stormwater pipe. Excavations required for tunnelling including removal of spoil, supply of any required materials, backfill, compaction and all required testing. Supply, installation and testing of stormwater pits including finishing to correct grade and remediation to return works areas back to original. Supply, installation and testing of RCP stormwater pipe.

Stormwater Network Upgrade
Issued by:
Sunshine Coast Council
Closing date: 10 July2018
Location: Western Australia
Description: Tenders are invited for the upgrade of the stormwater network to include Tombarra and Lawrence Streets, Mooloolaba. Scope of works includes, but is not limited to; supply and installation of reinforced concrete stormwater pipes. The preferred installation method of pipes is to be via trenchless methods. Secondary, alternative tenders proposing alternative installation methodologies will also be considered including construction of new stormwater pits, kerb and channel and reinstatement of sealed roads.

Micro TBM Tunnel Bore Package – Sydney Metro City & Southwest – Central Station Main Works
Issued by:
Laing O’Rourke Australia Construction Pty Ltd
Closing date: 13-07-2018
Location: New South Wales
Description: Sydney Metro is Australia’s biggest public transport project – 31 stations and 66 km of new metro rail. Stage 1 of the AU$8.3 billion Sydney Metro Northwest project opens in the first half of 2019. Laing O’Rourke is seeking contractors for the Micro Tunnel Bore works.

Design & Construct Portland Thermal Pipeline Replacement
Issued by:
Glenelg Shire Council
Closing date:
26 July 2018
Location:
Victoria
Description:
The Glenelg Shire Council is seeking tenders from suitably experienced and qualified contractors for the design and construction of a thermal pipeline loop supplying heated water to specified buildings within the Council Precinct.

For more information visit the Australian Tenders website.

If you have a tender you would like promoted in Trenchless Australasia contact Editor Nick Lovering at nlovering@gs-press.com.au

MTBM completes major microtunnelling works under Melbourne

The 9 m long, 1.5 m diameter MTBM has been installing more than 700 m of new sewer main under Melbourne’s CBD between Lonsdale Street to Flinders Lane.

The new sewer will connect with an existing pipeline to support the population growth in city over the next 35 years.

Quinn Civil is the Principal Contractor of the project, with microtunnelling operations subcontracted to Bothar Boring.

An in-depth article on the City West Water project was featured in the June edition of Trenchless Australasia. To view the digital edition of the magazine.

For more information visit the City West Water website.

If you have news that you would like included in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

Image courtesy of Quinn Civil

Rob Carr wins award for work on Sydney Water project

The annual awards recognise expertise, skill and innovation in civil construction.

Construction of the 2 km underground stormwater drain – from Epsom Road, Zetland to an existing stormwater system at Alexandra Canal, Alexandria – was developed by Sydney Water and the City of Sydney Council.

“This is a tremendous recognition for our team members who worked diligently for over 22 months on the largest contract in Rob Carr’s history,” said Rob Carr General Manager Angelo Soumboulidis.

“Not only did our team rise to the challenge, they also developed many innovations and process improvements, which have been applied across our business to boost safety and efficiency.

“Congratulations to our project team, and also to our supportive clients – the Drying Green (DG) Alliance including City of Sydney and Sydney Water.”

This project is part of a plan to provide stormwater services to accommodate growth and development in the Green Square area and is a key part of Sydney Water’s commitment to urban renewal and the utility’s Liveable Cities strategy.

The new drain is designed to reduce flooding in and around the Green Square Town Centre during torrential rain – particularly at Joynton Avenue and on Botany Road.

Sydney Water and the City of Sydney formed the DG Alliance with UGL Engineering, Seymour Whyte Constructions, Parsons Brinckerhoff and RPS Manidis Roberts to build the stormwater drain which is designed to reduce flooding in and around the Green Square Town Centre during torrential rain.

Rob Carr’s is now in the running for the CCF National Earth Awards to be presented on 16 November in Canberra.

For more information visit the Rob Carr website.

If you have news that you would like included in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

Image courtesy of Rob Carr

Water NZ opens conference registrations

In 2018, last year’s record attendance of more than 1,500 is expected to be exceeded, as members from across the water industry in New Zealand converge to celebrate the historic milestone.

Water New Zealand Chief Executive John Pfahlert said attendees can expect to see some history and nostalgia at this year’s conference, as well as a focus on the future of the industry.

“We’ll be continuing with our very successful Thought Leadership stream to complement the many technical papers selected by our very able and energetic Technical Committee,” he said.

“Last year we had a record attendance of more than 1,500 and I’m sure this year we’ll be looking at another record-breaking event.

“Our conference is a highlight in the three-waters events calendar – bringing together like-minded professionals to share experiences and knowledge, and build new relationships.”

The event will feature a two-day, six-stream conference program covering everything from data issues and strategic planning, through to thought leadership and water treatment.

One of the six streams will be dedicated to Trenchless Technology and presented by the ASTT.

The trenchless stream will include papers from no-dig industry leaders from throughout the Australasian region, as well as a special keynote presentation from AECOM Condition Assessment and Rehabilitation Americas Technical Practice Leader Chris Macey, who will be in Hamilton to present the ASTT’s CIPP Good Practices Course on 17 September.

In addition to the trenchless stream, the event will also include keynote presentations, poster presentations, a large-scale trade exhibition and a number of industry workshops.

Registrations opened on 20 June, with an early bird discount available until 20 July.

For more information visit the Water New Zealand Conference and Expo website.

If you have an event you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

Registrations open for ASTT NZ Trenchless Technical Forum

The event will run in the afternoon, as opposed to country’s traditional breakfast format, with the specific intention of attracting more contractors.

The forum will feature an in-depth presentation from representatives of the City Rail Link (CRL), the largest infrastructure project ever to be undertaken in the New Zealand.

The project includes the construction of a 3.45 km twin-tunnel underground rail link up to 42 m under Auckland.

The CRL is using extensive microtunnelling works to complete utility relocation on the project before tunnel boring machines can move in to excavate the twin tunnels.

The event will also feature a presentation by the ASTT Microtunnelling Special Interest Group Chair Jim Shooter on the group’s activities, as well as a presentation from Terry Fuller of AMC Drilling Optimisation.

The educational presentations will be followed by a networking session, accompanied by refreshments and canapes.

The forum is made possible by the generous sponsorship of AMC and HydroTech.

Registration for the Technical Forum is NZ$75 (AU$69) for ASTT members and NZ$95 (AU$88) for non-members, including GST.

For more information visit the ASTT NZ Trenchless Tech Forum website.

If you have an event you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au

ASTT Members gain access to trenchless tool

TAG-R was initially developed by the TTC, based at Louisiana Tech University, for the US National Utility Contractors Association (NUCA) as standalone software.

The tool uses project attributes, like diameter, length, depth of cover, geological conditions, allowable pipe materials and more to determine appropriate trenchless methods.

The TTC has since developed an online version, a fully automated web-based system for the selection of underground utility construction methods, primarily focused on Trenchless Technology.

TAG-R has a detailed database of more than 80 technologies for the installation, replacement and rehabilitation of underground assets, including sanitary, storm and combined sewers, water mains, laterals and manholes.

To access the site, members should contact ASTT Secretary Jeff Pace, who will provide login information for the site, which can be accessed here.

For more information visit the ASTT website.

If you have news you would like featured in Trenchless Australasia contact Journalist Chloe Jenkins at cjenkins@gs-press.com.au

Watercare’s Central Interceptor one step closer

Four construction contractors, short-listed earlier this year, now have four months to prepare their proposals.

“We’re running a tight ship here. Keeping to schedule on this critical project is crucial for the industry,” said Central Interceptor Executive Program Director Shayne Cunis.

“There is a lot at stake – these contractors and all interested parties need certainty and confidence in the process and timeframe.

“Our intention has always been to stick to our plan.

“We do what we say and the people of Auckland can take comfort that Watercare is delivering on its promises of improving Auckland’s infrastructure.”

The project includes the construction of a 13 km long wastewater tunnel, with an internal diameter of 4.5 m, as well as 4.4 km of link sewers that range between 2.1 and 2.4 m in diameter and a terminal pump station with 6 m3/s capacity.

The contractors’ proposals are due in 14 September, before the winning bid is announced in February 2019.

An in-depth article on the Central Interceptor project was featured in the March edition of Trenchless Australasia. To view the magazine on your PC, Mac, tablet, or mobile device, click here.

For more information visit the Watercare website.

If you have a project you would like featured in Trenchless Australasia contact Journalist Chloe Jenkins at cjenkins@gs-press.com.au

MTBM reaches halfway mark

The 9 m long, 1.5 m diameter Bothar Boring MTBM is installing the new Spencer Street Sewer System, which will connect with the existing line to support the population growth in Melbourne’s CBD over the next 35 years.

https://www.facebook.com/cwwater/videos/vl.1966168716758161/1614678088648149/

 

City West Water has announced that there will be a three-month road closure of two southbound lanes on Spencer Street to allow a 9 m deep shaft to be excavated to retrieve the MTBM when it completes its 600 m drive and to facilitate the connection of the new system.

Pipes have been installed at Lonsdale Street, using hydraulic pipe jacking to push the pipe into place at a depth of 8 to 12 m below Spencer Street.

“The retrieval of the tunnel borer and connection to the existing sewer line are critical steps in the project timeline, bringing us closer to project completion,” said City West Water Project Delivery Manager Kate Houlden.

“The three-month closure will allow our crews to complete works at the Flinders Lane site in ‘one hit’ to reduce overall disruption to the CBD.

“We understand that works of this scale are very disruptive, and we are working as fast as we can to get the job done to ensure our sewerage system can continue to support our growing city.”

For more information visit the City West Water website.

If you have a project you would like featured in Trenchless Australasia contact Journalist Chloe Jenkins at cjenkins@gs-press.com.au

New Zealand’s ambitious tunnelling project

An additional 4.4 km of link sewers will also be constructed as part of the project, with the trenchless method of microtunnelling likely to be used.

After completing the detailed design, Auckland’s water utility Watercare is in procurement phase for one of the
New Zealand’s largest tunnelling projects, the Central Interceptor. The project will see the construction of a 13 km long wastewater tunnel, with an internal diameter of 4.5 m, as well as 4.4 km of link sewers that range between 2.1 and 2.4 m in diameter and a terminal pump station with 6 m3/s capacity.

Project

The tunnel will run between Western Springs and the Mangere Wastewater Treatment Plant and will be constructed at a depth of between 22 and 110 m. It will cross Manukau Harbour approximately 15 m below the seabed and will connect to the existing wastewater networks along the route, which will divert flows and overflows into the tunnel.

The project is needed to ensure there is sufficient capacity in Watercare’s network to meet planned population growth and developments in Auckland. Without this, more overflows into the waterways and harbours will occur.

In heavy rain, the wastewater network can overflow to the Waitemata Harbour at more than 100 points and to the northeastern part of the Manukau Harbour at 14 points. The Central Interceptor is expected to reduce the annual average overflow volume by 80 per cent.

One part of the existing network, the lower section of the Hillsborough Tunnel and Manukau Siphon, is estimated to have a residual life of between 15 and 25 more years. If this fails, it could mean continuous untreated wastewater discharge from more than 200,000 customers into the Manukau Harbour for an unknown period of time, including industrial flows presently treated at the Mangere Wastewater Treatment Plant.

Detailed design

The detailed design for the project has now been completed and, on 20 October 2017, an expression of interest was issued that will result in a shortlist of contractors who can tender for the works during 2018. Physical works will commence in 2019 and the project is expected to be completed in 2025.

Watercare’s Stephen Grace has acted as the client-side Design Manager on the project for the last three years, working with the design consortium of Jacobs, AECOM and McMillen Jacobs. Mr Grace’s role has involved reviewing all of the deliverables that comprise the detailed design, which included more than 1,800 drawings, 200 technical memos and specifications, and the contract documents.

“The project will enhance network capacity to allow for growth in Auckland City and increase the resilience of the network by duplicating sections of it,” says Mr Grace.

“It will also reduce wet weather overflows from the combined wastewater network in the older parts of Auckland.”

Tunnelling and microtunnelling

He says that as a result of the size and depth of the tunnel, it has been determined that a tunnel boring machine (TBM) is the best method for the construction of the Central Interceptor. It is expected that the link tunnels will use a microtunnel boring machine (MTBM).

“The size of the wastewater tunnel and depth determined that TBM tunnelling was a good option,” says Mr Grace.

“The shafts are up to 110 m deep and are spaced 1 km to 4 km apart, so they were beyond the capacity of a microtunnelling pipejack. The tunnel is deep to avoid the near-surface basalt rock that characterises the Auckland volcanic field.

“Auckland is sometimes referred to as the ‘City of Volcanoes’, with over 50 scoria cones.

“We expect the 4.4 km of link sewers will be constructed by MBTM using pipejacking techniques. Additionally, there is over 1 km of smaller pipes, under 1 m in diameter, that connect the tunnel and link sewers to the existing wastewater network.

“Some of these connection pipelines are well-suited to trenchless methods.”

The TBM specified for the project will be earth pressure balanced (EPB) machine that can tunnel through the typically weak sandstones that lie under the volcanic flows that stretch across central Auckland. Watercare has undertaken extensive geotechnical investigations, which include more than 200 boreholes.

The EPB machine will need to handle the groundwater pressures (particularly under the Hillsborough Ridge, where the deepest section is 110 m below the surface) and will minimise the risk of settlement where the tunnel passes under buildings, highways and railway lines. Mr Grace says the project won’t be without its challenges.

“The initial launch of the TBM presents some challenges as the mixed ground conditions at the southern-most point of the tunnel are in alluvial and marine sediments. This could require ground improvement techniques to launch the TBM,” he says.

“Under the Manukau Harbour, the tunnel passes under the existing Western Interceptor pipe that may be fragile. And in the link sewer pipejacking, we have one drive length that is almost 1 km long and around 66 m depth to invert.

“The tunnel is very deep through most of its length, so the impact on properties above will be negligible. The main tunnel and link sewers will be driven under 1,085 properties, so Watercare has undertaken extensive consultation and prepared materials to explain why the project is needed and how it will operate.”

Watercare is also taking extra steps as the tunnel crosses under Manukau Harbour.

“We will monitor the health of the Manukau Siphon before, during and after the harbour section is constructed,” says Mr Grace.

“We also have to avoid power pylons on the northern foreshore, so the tunnel alignment was moved to avoid the footings in the mud flats. The tunnel will be 15 m under the floor of the harbour, which was determined by a bathymetry survey, and 23 boreholes along the corridor.

“The segmental lining has been designed to withstand the ground and hydrostatic loads, with conventional reinforcement south of the harbour and fibre reinforcement through the subsea section and north of the harbour.”

The Central Interceptor is one of several projects Watercare is undertaking using Trenchless Technology and tunnelling methods.

“We are currently constructing a number of trenchless projects of size, including the Army Bay outfall and Wairau rising main. Army Bay is using Herrenknecht’s Direct Pipe, while Wairau is using a Herrenknecht AVN MTBM,” says
Mr Grace.

“The Glen Eden rising main was also installed recently with a Vermeer Axis machine. A lot of smaller water and wastewater pipelines across our network are regularly installed using horizontal directional drilling methods.”

This article was featured in the March edition of Trenchless Australasia. To view the magazine on your PC, Mac, tablet, or mobile device, click here.

For more information visit the Watercare website.

If you have a project you would like featured in Trenchless Australasia contact Journalist Chloe Jenkins at cjenkins@gs-press.com.au

Final trenchless work commences on pipeline installation

The Gippsland Water project is designed to address the water resource shortfall in the Tarago River system by creating a new pipeline from Warragul to Moe, 100 km southeast of Melbourne.

The pipeline will allow for the transportation of water between the Moe and Warragul systems in the event of supply or water quality issues.

The final stage of the project involves the installation of an approximately 8.3 km DN 375 pipeline from Darnum to Warragul.

The alignment of the Warragul to Darnum section of the pipeline.

HDD and microtunnelling has been selected for sections of the installation, which includes excavating under a railway line and the Princes Freeway, to limit the impact of construction on the community and existing infrastructure.

A 150 m, 616 mm outside diameter glass reinforced plastic encasement pipe will be bored using microtunnelling, in addition to four HDD drives ranging from 100 to 180 m in length of DN 450 high-density polyethylene pipe.

So far, three bores have been completed, with a 7.5 m shaft constructed in Darnum in preparation for the final bore, which is due for completion in mid-May 2018.

Construction for the water pipeline commenced in December 2017. Commissioning is expected to continue throughout 2018.

For more information visit the Gippsland Water website.

If you have a project you would like featured in Trenchless Australasia contact Journalist Chloe Jenkins at cjenkins@gs-press.com.au

Images supplied by Gippsland Water

MTBM reaches milestone in Brisbane

A Herrenknecht MTBM has been lifted from a 48 m shaft at Ewer Street after breaking through – the deepest tunnel shaft of its kind in the southern hemisphere – where it has been working on Stage 2 of the Bulimba Creek Sewer Upgrade to excavate and pipe jack a 1,500 mm diameter, 4.25 km sewer pipe between Mansfield and Carindale.

 

The AbergeldieObayashi Joint Venture will now transport and launch the MTBM in the opposite direction to the first drive, where it will microtunnel its way back to the Ewer Street retrieval shaft in Carindale in approximately four months.

“The whole project team was thrilled to see the borer break through after three months of tunnelling,” said Queensland Urban Utilities Spokesperson Michelle Cull.

“It has been on quite a journey, travelling around 700 m from where it was launched on the corner of Pine Mountain and Scrub roads.

“It was a delicate operation to slowly crane the 45 t machine out of an incredibly deep hole, alongside a busy road.”

Trenchless Technology was chosen as the construction method in order to minimise disruption to motorists and the community while the upgrade to support the area’s future population growth is carried out.

Abergeldie’s John Payne and Queensland Urban Utilities’ Hannah Horak at the MTBM retrieval shaft.

“Sewerage is a hidden service, but as projects like this demonstrates, a lot goes on behind the scenes after you flush,” said Ms Cull.

“This new pipe will carry wastewater to the Gibson Island Sewage Treatment Plant and cater for future growth in southeast Brisbane for at least the next 50 years.”

It is anticipated that the project will be completed by early 2019.

An in-depth article about the Bulimba Creek Upgrade Stage 2 was featured in the September edition of Trenchless Australasia. To view the magazine on your PC, Mac, tablet, or mobile device, click here.

For more information visit the Queensland Urban Utilities website.

If you have a project you would like featured in Trenchless Australasia contact Journalist Chloe Jenkins at cjenkins@gs-press.com.au

MTBM arrives in Whangapararoa

The new outfall pipeline – part of a NZ$31 million (AU$29.1 million) upgrade project by utility Watercare – is designed to replace an ageing 2.8 km outfall pipeline that is not equipped to cope with predicted population growth.

A comparison of the existing and new pipeline routes.

The NZ$6.2 million (AU$5.8 million) Herrenknecht MTBM, which has been named Blanche, will install a 2 km pipeline from the Army Bay Wastewater Treatment Plant to the foreshore using direct pipe installation to thrust sections of steel pipe into place along the route.

A further 900 m of high-density polyethylene (HDPE) pipe with concrete footings will be floated into place and installed along the seabed.

“This is the first time that this direct pipe method is being used in New Zealand and a 2 km thrust will be a world record,” said Watercare Project Manager Dirk du Plessis.

“There are many advantages to using this type of construction, which is safer for workers, produces less dust and has less impact on the environment than open-cut methods — which is particularly important as the site lies within the Shakespear wildlife sanctuary.”

The new larger pipeline will increase current wastewater discharge volume of 350 L/s to 1,400 L/s, ensuring a reliable and resilient service from the plant to the Whangapararoa region as it expands.

For more information visit the Watercare website.

If you have a project you would like featured in Trenchless Australasia contact Journalist Chloe Jenkins at cjenkins@gs-press.com.au

Images supplied by Watercare

Britomart Station

Watercare announces Central Interceptor contractor shortlist

The NZ$1.2 billion (AU$1.12 billion) Central Interceptor is a 13 km, 4.5m diameter wastewater tunnel that is designed to reduce combined wastewater and stormwater overflows to local waterways and the Waitemata Harbour.

The project also includes the construction of 4.4 km of link sewers, ranging in diameter from 2.1 to 2.4 m, and the construction of a terminal pump station.

After Watercare opened expressions of interest (EOI) for construction in October, the following four construction contractors have been shortlisted:

“All four groups have demonstrated that they have the ability and experience to deliver this project to the required standard, while adding significant value to the project,” said Central Interceptor Executive Program Director Shayne Cunis.

“We are looking forward to working with them on the next stage of the process and remain committed to meeting our timeframes for delivery of the Central Interceptor for the people of Auckland.”

Design and technical documentation will be released in March, and the Request for Proposal will be issued to the short-listed contractors in May.

An in-depth article on the Central Interceptor is featured in the March edition of Trenchless Australasia. To view the magazine on your PC, Mac, tablet, or mobile device, click here.

For more information visit the Watercare website.

If you have news you would like featured in Trenchless Australasia contact Journalist Chloe Jenkins at cjenkins@gs-press.com.au

City West Water’s sewer upgrade reaches milestone

The 9 m long, 25 t TBM, with a diameter of 1.5 m, is currently microtunnelling from a launch shaft on the site, towards a retrieval shaft that will be constructed at Flinders Lane, installing 6-8 m of pipe every 12 hours.

City West Water Project Delivery Manager Kate Houlden said the installation of the MTBM was an exciting ‘next step’ for the project.

“With population growth set to increase by 14,000 apartments within the Spencer Street Sewer catchment, tunnelling works to increase its capacity are vital.

“Our MTBM – owned by Bothar Boring – has made its journey from its last project in Lismore, New South Wales, and is now beginning its next journey under Spencer Street.

“Weighing in at an impressive 25 t, our MTBM is about four times as heavy as a Tyrannosaurus Rex.

“The borer is 9 m and is made up of three sections – cutter head, power pack and telescopic sections – which have been lowered into the 12 m deep launch shaft in stages.

“The sections were delivered one day at a time, with our crews working hard to ensure that each was installed safely, on time and with precision.

“The total length of the bore will be just over 590 m with a bore diameter of 1.5 m.

“On completion our MTBM will be pulled out of the retrieval shaft at Flinders Lane and transported to another project location for reuse,” said Ms Houlden.

The upgrade to City West Water’s network will see the construction of 700 m of new sewer mains on Spencer Street, between Little Lonsdale Street and Flinders Lane, to cope with Melbourne’s growth over the next 35 years.

For more information visit the City West Water website.

If you have a project you would like featured in Trenchless Australasia contact Journalist Chloe Jenkins at cjenkins@gs-press.com.au

Image supplied by City West Water