View the latest trenchless technology tenders

View the latest trenchless technology tenders

Trenchless sewer repairs
Issued by:
South East Water Corporation
Closing date: 5 December 2019
Location: Victoria
Description: Trenchless repair services and activities include, but are not limited to:

  • programmed spot repair of a failed or failing sewer asset
  • installation of approved South East Water patches, quick locks, top hats and lateral connection liners
  • flow management from task award to task completion – appropriate bypass pumping and diversion and flow control during patching operations is to be carried out including flow control of the services specifications and flow management plans to be approved by South East Water prior to commencement of works
  • CCTV inspection of assets both before and after repair
  • cleaning of the sewer asset pre commencement of repair
  • potential emergency call-out for after-hours repair
  • rehabilitation or sealing of property connection junctions.

Sydney Metro Tunnelling – engineering and construction specialist services
Issued by: Sydney Metro
Closing date: 9 December 2019
Location: New South Wales
Description: Sydney Metro is seeking to engage a service provider responsible for providing a tunnelling – engineering and construction specialist services for relevant work streams. Expected mobilisation is March 2020 for a period of two years on a part-time basis of three days per week.

Elliott Heads sewer pipeline
Issued by:
Bundaberg Regional Council
Closing date:
10 December 2019
Location:
Queensland
Description:
The customer requires a contractor to supply and installation of DN 150 sewer pressure main. The earthworks include, but are not limited to trench excavation, pipe installation, placement of embedment and trench backfill material, disposal of surplus material and acceptance testing requirements associated with the earthwork activities.

Sewer main renewals
Issued by:
Grampians Wimmera Mallee Water
Closing date: 12 December 2019
Location: Victoria
Description: GWMWater invites tender submissions for Sewer Main Renewals Program 2019–20. This contract includes two separable portions of works located throughout its operational region, with scope of works including relining of approximately 5,880 m of mains and relining of approximately 51 HCBs.

Supply and construction of sewer rising main 71
Issued by:
Port Macquarie Hastings Council
Closing date:
19 December 2019
Location:
New South Wales
Description:
Port Macquarie Hastings Council is seeking tender submissions from suitably experienced firms or persons for the provision of supply and installation of approximately 2 km of DN 375 ductile iron pipes (DICL) and polyethylene (PE) pipe from Greenmeadows to John Fraser Place Port Macquarie.

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 Managing Editor Chloe Jenkins at cjenkins@gs-press.com.au

R&R McClure expands range

Each machine in the new R&R McClure vacuum truck range now includes cassette or boom operation, pressure water and air spade, high flow wash down water and hydraulics for tools and pumps.

Additionally, the trucks are suitable for heavy liquid, wet or dry non-destructive digging (NDD), deep pits and level control with open air or confined space entry.

NDD is a safer way for excavating around gas lines, water pipes, tree roots and phone or electrical cables; by using a high-pressure lance, NDD breaks up soil, clay and other malleable earth products to then remove waste with a powerful vacuum unit.

For more information visit the R&R McClure website.

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

Register now for NZ ASTT event

The last ASTT Auckland New Zealand forum of 2019 will take place at the ELB Equipment showroom in Auckland, New Zealand on 4 December 2019.

The forum will offer trenchless equipment demonstrations and the opportunity to network with industry professionals as well as live demonstrations of working Ditch Witch horizontal directional drilling rigs and vacuum excavators, with mini skid steers and trenchers also on display.

Additionally, ELB and CETCO will be performing an on-site mud school and demonstration for guests with InterflowPipeWorks and Reline NZ providing demonstrations on pipelining systems.

The event will be hosted by ASTT New Zealand Councillor Blair Telfer and supported by ELB Equipment.

Click here to register.

For more information visit the ASTT website.

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

Major sewer renewal for Bendigo

Coliban Water has commenced a major renewal project in Bendigo, Victoria using a trenchless technique that eliminates the need for contractors to excavate.

Coliban Water Manager Infrastructure Corey Bourne said the works on High Street, Creek Street North and Short Street will improve sewer service reliability.

“Our contractor, Interflow, will work at night so we can minimise impact to customers, business and traffic during the works period,” said Mr Bourne.

Interflow will reline the pipe with a spiral wound polyvinyl chloride (PVC) liner that restores the structural integrity and reliability of the sewer main, while also reducing the environmental and social impacts.

“The ongoing renewal of sewer mains across our region is an integral part of our operations to ensure we maintain and deliver services to customers,” said Mr Bourne.

“We inspect sewer mains by feeding through a CCTV camera.

“The footage is then reviewed to identify sections of the main that have been damaged and need to be renewed.”

The project began on 6 November and is due to be completed by the end of the month.

For more information visit the Coliban Water website.

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

Smart Lock launches training program

The training program has been developed to ensure all Smart Lock installers have the necessary training and confidence to perform safe and accurate installations in the field.

Once completed, each customer is certified and accredited as a Smart Lock installer and can offer the solution to its personal customer base.

Smart Lock said it consistently has stock on hand and ready for delivery, along with technical support and assistance that can be accessed at any time, with the new training program adding another dimension to the business.

Through the new course, Smart Lock will service its partners, further educational understanding and raise market awareness of the ‘no cure’ point repair system that leverages mechanical and fiberglass technology for sewer and drainage pipe repairs and rehabilitation.

Additionally, Smart Lock said it will continue to liaise with relevant water authorities and infrastructure owners to ensure the appropriateness of its products and subsequent training program.

For more information visit the Smart Lock website.

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

Interflow completes “impossible” project

The 100-year-old wastewater asset required an urgent excavation, repair and relining to nine broken junctions buried 5 m below ground while nestled in a confined 5.5 m wide alleyway and popular Lismore tourist attraction, Larkin Lane.

As the laneway is flanked by two-storey buildings, the proximity of infrastructure meant that any additional load around the buildings would be imposed on the pipe through surrounding soil.

Interflow Project Manager John Adamo said this affected the excavation plan to access the collapsed junctions as the buildings’ weight would directly impact the walls of the trench.

“The pipeline also had high flow in the main and house service lines, making excavation especially difficult,” said Mr Adamo.

A geographical report of the area determined Interflow’s need to install a custom designed steel casing tube to stabilise the working area and provide a robust solution due to its ‘hoop strength’.

“Our steel casing design was strong enough to resist the ground pressure from the soil and withstand any weight imposed on the trench from the surrounding infrastructure,” said Mr Adamo.

As the confined area would not allow for a large excavator, Interflow used a 6 t excavator to lift each section of the 1,800 mm diameter casing into the ground and bolt them together.

The project also faced some challenging conditions including extremely muddy and unstable work areas, as well as coping with heavy pedestrian foot traffic.

“Deep excavation was needed in slippery back mud – it is a very sticky, wet and heavy clay and this type of ground collapses easily,” said Mr Adamo.

To ensure minimal disruption and mitigate the risk of injuries, safety management and community relations remained at the forefront of the project.

For more information visit the Interflow website.  

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

generic water pipe image

Primus Line completes speedy rehabilitation

Located in the Northern Rivers region of NSW, Ballina’s environmentally sensitive location and the sewer rise main’s location underneath a main road into a difficult to access swampland meant there was limited accessibility to the pipeline.

Considering the condition of the main remained uncertain due to its location, the Primus Line® system was chosen to preventively renovate the main to mitigate any risks.

Initially, a bypass line was installed so the existing sewer main could be drained, followed by cleaning the main by using water jetting and pull through rubber discs.

After the cleaning, 505 m of Primus Line® System DN 400 PN 18 and the corresponding end fittings were installed in a singular working day.

To ensure that the newly installed Primus Liner is always filled with water, a non-return valve was installed at the low point after the pump station.

This rehabilitation of the host pipe – made of a DN 375 asbestos cement material – will allow for the Ballina Shire Council to continue to use the main for the transport of residential wastewater.

The council assigned the rehabilitation process to Primus Line’s local partner company Interflow.

For more information visit the Primus Line website.

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

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Stormwater CCTV inspections and auditing
Issued by:
Auckland Council
Closing date: 5 November 2019
Location: New Zealand
Description: The council invites suppliers to register their interest for the following scope of work;

  • Inspection of stormwater pipes, mainly critical assets;
  • capture of defects and asset data;
  • deliver the data in council’s CCTV data management system;
  • cleaning and root cutting to facilitate inspection; and
  • preparation of as-built drawings according to Auckland Council standard, for newly found assets and where the asset connectivity is incorrect.

Coorong Quays WWTP to O’Connell Ave pump station transfer main
Issued by:
Alexandrina Council
Closing date: 10November 2019
Location: South Australia
Description A new dedicated pumping main is required to link the Coorong Quays WWTP to the O’Connell Avenue pump station. The new pumping main will provide a dedicated connection and be approximately 1,300 m in total length.

Sewer and stormwater relining (rehabilitation)
Issued by:
Gladstone Regional Council
Closing date: 12 November 2019
Location: Queensland
Description: Gladstone Regional Council requires a contractor to restore structural integrity and hydraulic capacity and to prevent infiltration and exfiltration. The long-term design basis of the rehabilitation liners is 50 years.

Eastern sector sewer trunk main construction
Issued by:
Mount Barker District Council
Closing date: 13 November 2019
Location: South Australia
Description: The tender is for the construction of a new sewer trunk main on the eastern sector of Mount Barker.  The project includes the supply, construction and reinstatement of a) 92.6 m DN 500 high-density polyethylene (HDPE) pipe; b) 632.74 m DN 400 HDPE pipe; c) 175.88 m DN 355 pipe; d) 13 maintenance holes and e) other associated works. The council will consider open trench excavation or directional drilling methodologies.

Underground drainage upgrades (relining works)
Issued by:
Brimbank City Council
Closing date: 19 November 2019
Location: Victoria
Description: Brimbank City Council intends to rehabilitate some existing stormwater drains within the municipality using no-dig trenchless methods. These works are to be performed at 10 locations.

Hermannsburg – construction of new elevated tank and trunk water main
Issued by:
Power and Water Corporation
Closing date: 22 November 2019
Location: Northern Territory
Description This project has two components. The first is to increase the height of the elevated tank stand and the elevated storage capacity. The second is to provide a DN 225 trunk water main to deliver adequate pressure and improved water flow into that part of the community currently serviced by the booster pumps system. Also, the decommissioning of two sections of old water mains.

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 featured in Trenchless Australasia contact Managing Editor Chloe Jenkins at cjenkins@gs-press.com.au

ASTT award recipients recognised at No-Dig Down Under

The awards presented included: New Installation Project of the Year; Rehabilitation Project of the Year; New Technology; ASTT Young Person of the Year; and ASTT Person of the Year.

New Installation Project of the Year: Pipeline Drillers and Unitywater

The New Installation Project of the Year Award recognises innovation, advancements in technology, environmental benefits and occupational health and safety benefits in new installation projects.

Trenchless contractor Pipeline Drillers Group and Unitywater received this award for the Caloundra Sewerage Transport System project by pushing the boundaries of what can be achieved with horizontal directional drilling (HDD) in challenging geologies, difficult alignments and highly populated areas.

Rehabilitation Project of the Year: Interflow and City of Gold Coast

The Rehabilitation Project of the Year Award was awarded to Interflow and City of Gold Coast for the innovation and technological advancements for the emergency Eastern Force Main Rehabilitation, an approximately 18 km long main conveying sewage from 200,000 people.

City of Gold Coast and Interflow were able to procure materials, complete all enabling and close out activities and successfully install the liner into the rising main in less than three days, as well as placing the main back into service within two weeks of its initial failure.

New Technology Award: Herrenknecht

The New Technology Award recognises the practical development of trenchless systems or equipment and was awarded to Herrenknecht for its Direct Pipe® technology, which was introduced in New Zealand for a wastewater pipeline and ocean outfall project.

The project demonstrated that the Direct Pipe® method is a safer and reduced risk option compared to conventional HDD methods, and additionally achieved the world record for the longest Direct Pipe® installation of 1,929 m.

ASTT Young Person of the Year: Jeroen Wassenaar and Punam Halai

This award recognises the important role younger members (aged 36 or under) of the Australasian trenchless community play in the growth of the industry and this year was jointly awarded to Qenos Market Segment Manager Jeroen Wassenaar and AECOM New Zealand Principal Civil Engineer Punam Halai.

Jeroen Wassenaar

Mr Wassenaar received the award for his expert technical pipeline knowledge combined with a strong understanding of HDD, which has assisted in convincing many asset owners and design engineers to use trenchless technology for their infrastructure installation projects.

The trenchless sector has been positively influenced and supported by the vital role that Mr Wassenaar plays in allowing the Australasia industry to recognise the benefits of trenchless technology.

Punam Halai

Ms Halai received the award for her outstanding contributions to the design and execution of major trenchless projects, such as the Tauranga City Council Trunk Watermain project, the Memorial Park to Chapel St Rising Main Renewal and numerous outfall projects.

Ms Halai is a regular attendee at ASTT forums and Water NZ conferences, as well as co-presenting a sliplining and grouting paper at No Dig Down Under 2019, and has been a positive mentor to younger colleagues throughout AECOM New Zealand.

ASTT Person of the Year: Geoff Weaver

The ASTT Person of the Year award recognises an individual (aged 37 or over) who has made major and sustained contributions to the trenchless industry and was awarded to Interflow Managing Director Geoff Weaver.

Mr Weaver is considered an industry leader and pioneer of trenchless technology who has more than 40 years’ experience in civil construction and pipeline renewal. Throughout his tenure as Managing Director, Geoff’s direction and contributions have assisted in Interflow’s growth as Australia’s largest provider of trenchless pipeline solutions.

All award winners will be profiled in the December edition of Trenchless Australasia magazine.

No-Dig Down Under 2021

No-Dig Down Under 2021 will take place on 5–8 October 2021 at the International Convention Centre (ICC) in Sydney, Australia. 

To stay up to date with latest No-Dig Down Under news, subscribe to the e-newsletter.

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

CAPE secures major contract

The ‘miscellaneous services package’ contract is in relation to Rio Tinto’s Robe Valley Sustaining Project, located approximately 140 km southwest of Karratha in the Pilbara, WA.

The scope of work includes relocation and modifications to existing electrical services, realignment of existing raw water services, horizontal directional drilling below live rail lines, construction of waste fines pipelines and the removal and decommissioning of existing underground services.

CAPE is also contracted to install both overhead and underground 33 kV powerlines, communication infrastructure and pole and pad mounted transformers.

CAPE CEO Greg Hutchinson said the project and contract is well suited to CAPE’s service offering.

“It is very pleasing to be awarded this contract, which is highly technical and will require significant interface management as we will be working in a live brownfields environment,” said Mr Hutchinson.

“This contract will draw on CAPE’s extensive underground services pedigree encompassing power, water and communications infrastructure as well as civil and HDD.

“We look forward to working in partnership with Rio Tinto on the project.”

Works are anticipated to take six months to complete.

For more information visit the CAPE website.

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

Primus Line completes unique rehabilitation

The North Head Wastewater Treatment Plant comprises many tunnels and subterranean chambers that are located up to 100 m below the surface of the Sydney Harbour National Park, including a DN 150 sump pump pipeline that required rehabilitation due to a number of leakage points.

Along with several other pipelines, this pipe runs through a narrow and vertical shaft, which is only accessible by cramped ladders and makes pipeline replacement a time consuming and complicated process.

Instead, Sydney Water decided to reline the existing main with Primus Line’s deemed-to-comply technology, which has already proven itself in other Sydney Water projects.

The rehabilitation occurred in two sections, at 91 m and 15 m, after the pipe was drained and small pipe cut outs were created to grant access to the main.

The DN 150 PN 25 Primus Liner had a 1,400 mm diameter and was fed into the pipeline from top to bottom, secured through the entire installation process by ropes and lashing straps.

Upon inflating the pre-folder liner with compressed air, flange adapters and Primus Line PN 16 end fittings were installed, completing the rehabilitation process.

Sydney Water assigned the rehabilitation process to Primus Line’s local partner company Interflow.

Works were completed within two days.

For more information visit the Primus Line website.

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

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Wangaratta WWTP upgrade – Stage 2 – lagoon 5 and 13 rehabilitation
Issued by:
North East Water
Closing date:
28 October 2019
Location:
Victoria
Description:
Design and construct approximately 165,000 m2 of geosynthetic clay liner to rehabilitate two existing lagoons at Wangaratta Wastewater Treatment Plant. The project scope of works includes design, supply, install, test and commission of all works associated to rehabilitate lagoon liner integrity.

CCTV & condition rating of underground drainage assets
Issued by:
Cairns Regional Council
Closing date:
28 October 2019
Location:
Queensland
Description:
A summary of the four main elements of works under the contract are as follows:

  • CCTV of assets identified including locating, assessing and inspecting these stormwater assets, inclusive of all CCTV reporting requirements
  • Defect identification and grading of assets and inclusion of this information in the CCTV reporting
  • Asset data collection
  • Structural condition and serviceability assessment and rating in accordance with FNQROC and the Water Services Association of Australia.

Construction of the Grant Street rising main and East Maddingley water main
Issued by:
Western Water
Closing date:
28 October 2019
Location:
Victoria
Description
Western Water is seeking a principal contractor(s) to undertake the construction of approximately 7.7 km of sewer rising main from the intersection of Grant Street & Peelmans Lane, Bacchus Marsh to the Bacchus Marsh Recycled Water Plant and approximately 790 m of DN225 PE water pipeline along Griffith Street and Parwan Road in Bacchus Marsh.

Mountain View sewer main replacement
Issued by:
Otorohanga District Council
Closing date:
4 November 2019
Location:
Waikato, New Zealand
Description:
This contract is for replacing an existing 100 mm gravity sewer line with new 150 mm PVC gravity sewer main and associated access chambers, connecting to existing lines. The contract will involve approximately 330 m of trenching, laying new 150 mm PVC gravity sewer main and four associated access chambers on private property running along the North Island Main Trunk.

Howard STP collection: gravity mains
Issued by:
Fraser Coast Regional Council
Closing date:
4 November 2019
Location:
Queensland
Description
Tenders are invited from suitably qualified and experienced contractors for the construction of approximately 700 m of DN300 and 180 m of DN150 uPVC sewer gravity mains throughout the Howard Township, Queensland.

WestConnex M4-M5 link tunnels – installation of service conduits and deluge pipework
Issued by:
Lendlease Samsung Bouygues Joint Venture
Closing date:
30 November 2019
Location:
New South Wales
Description:
The M4-M5 Link Tunnels consists of twin 7.5 km four-lane tunnels linking the new M4 tunnels at Haberfield to the new M5 motorway at St Peters and includes provisions to accommodate future connections to the new Rozelle Interchange and Iron Cove Link. The scope is for the installation of service conduits and deluge pipework.

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 Managing Editor Chloe Jenkins at cjenkins@gs-press.com.au

WSAA Roadshow Series approaching fast

The series will take place throughout October and November in five capital cities around the country and is free to attend to those in the water industry such as utilities, consultants, contractors and manufacturers.

WSAA, with funding and support from the CRC Program and more than 30 other partners, including the ASTT, will provide the update including covering how to reduce impact on customers and the environment, reduce the cost of reinstatement and provide an alternative asbestos cement pipe rehabilitation program.

The Smart Linings for Pipe and Infrastructure Project consists of conducting research on linings for water pipes and sewer pipes, developing codes of practice and product standards and developing tools to assist utilities in selecting suitable pipes for lining.

The event will take place in Melbourne on the 15 October; Brisbane on the 16 October; Sydney on the 17 Oct; Adelaide on the 29 October and Perth on the 4 November.

While attendance is free, attendees must pre-register for catering purposes.

For more information visit the WSAA website.

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

Power of people for emergency responses

One of Australia’s largest pipeline renewal companies, Interflow, has firsthand knowledge of the importance of experience, dedication and initiative when disaster strikes.

After the 2011 earthquake hit Christchurch, New Zealand, eight years of works to renew and rebuild the city’s infrastructure begun and Interflow was one of the first contractors on site to help restore and repair the damaged wastewater pipelines and sewage services.

Over the initial five-year repair phase (2011–16), Interflow brought 16 Australian-based staff to Christchurch, while appointing 20 new staff to the pre-existing 22-person Christchurch-based team.

Interflow General Manager – New Zealand Blair Telfer said every member rallied to assist with the repair operation and get the city back up and running as quickly as possible.

“There were a number of differing projects that were outside of the norm that required bespoke design,” said Mr Telfer.

“By having a team of experienced specialists and engineers in Australia supporting our New Zealand crews, we were able to brainstorm and come up with innovative ideas and then prove that they would be robust and meet design and specification requirements.

“As trenchless techniques are quite unique and specialised by their very nature, there are few trained persons.

“Training had to happen on the job.

“Fortunately, Interflow had a team of dedicated technical trainers who provided on-the-job training and certification, which sped up productivity and ensured that high quality standards were maintained.”

While appropriate training may be a challenge in one situation, acquiring the necessary tools and materials can be another.

In 2018, a failure in the City of Gold Coast’s Eastern Force Main was detected in one of the two large rising mains that takes sewage from about 200,000 people in the city’s north to the Coombabah Sewage Treatment Plant.

A Germany-manufactured Primus Liner® was selected for the job and Interflow Manager Emerging Markets Will Zillmann said Interflow’s industry connections and contacts meant that the necessary tools and materials were procured earlier than the anticipated two-week to three month period.

Knowing that Sydney Water had additional correctly-sized Primus Line stock and that Queensland Urban Utilities owned the tools required, Interflow contacted each of the utilities, which were willing to help during the emergency.

“These industry connections and relationships were key to getting the materials and tools we needed to complete this job, which saved on freight costs and meant Interflow could begin renewing the pipes within days of the fault being detected,” said Mr Zillman.

Through these experiences, Interflow credits having well established contacts; mobile necessary personnel, tools and materials; extensive in-house experience; and a dedicated team to ensuring the best chances of positive outcomes when faced with unexpected disasters.

For more information visit the Interflow website.

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

Innovative technology used in sewer renewal project

Interflow recently completed a sewer renewal project for Coliban Water, located along View Street in Bendigo’s CBD which is subject to high volumes of pedestrian traffic.

On initial inspection, the extent of the existing damage meant that a large section of the sewer required replacing via open trenching prior to relining.

Any excavation to the site would undermine the integrity of the support columns of a nearby heritage listed balcony structure, meaning significant structural support was required at considerable cost.

To remain economical, a temporary propping system was designed to ensure there was no risk of foundation movement or settlement of the site during and after works.

As an overall solution, the damaged section of the pipe was repaired and the sewer relining was completed by using SPR™ EX – Expanda spiral wound liner that did not impose any risk to the support structure of the nearby balcony.

Interflow used stabilised sand for backfill material to ensure there was no subsidence post-completion, as well as a vacuum truck for hydro excavation due to the vicinity’s existing underground services and the restricted space available.

The work was completed without incident and within a week, which is significantly faster than using a dig-lay-backfill method.

For more information visit the Interflow website.

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

CCF QLD names Interflow and Unitywater as finalists

The CCF Earth Awards recognise excellence in civil construction, with the winners of the awards in each state progressing to an annual awards ceremony later in the year.

The selection of Interflow’s rehabilitation of a Unitywater sewerage pipeline in Alexandra Headland recognises the project for its efficient approach and successful outcome.

The rehabilitation involved relining six lengths of DN 450 using SPR™ EX-Expanda liner, with one access chamber raised and eight access chambers cleaned using a Recycler before being coated.

To further reduce cartage and use of water, several cleaning dingos were strategically positioned along the line.

In conjunction with Interflow’s Kubota, the dingos were arranged using a 100 t crane to carry out the works.

Given the sewers and access chambers were located parallel to the shoreline and on steep rocky ground, the team arranged for on-foot crew access and equipment was crane-delivered to the chambers.

The coating and sewer relining were undertaken in tandem to take advantage of the arranged closures and council permits.

Interflow’s Project Manager – Northern Division Shaun Corrie said the project wouldn’t have been possible without trenchless technology.

“Due to the environmentally sensitive nature of the Alexandra Headland foreshore area, a trenchless solution for Unitywater was a must,” he said.

“While the pipeline was situated in a busy council parkland area, Interflow and Unitywater worked with council in seeking approval to undertake the works, ensuring relevant site conditions and requirements were met.

“As a result, we were able to deliver the project on time, within budget, with minimal disruption to the public, and no environmental impact.”

The project team, who conducted recon on the beach.

In consultation with multiple stakeholders, Interflow identified optimal relining methodology, prevented community disruption, controlled site hazards and reduced environmental impacts.

Interflow Business Development Manager John Phillips said, “It pleases me greatly that we were able to assist Unitywater in delivering this difficult-to-access, environmentally sensitive, high-risk project.

“The successful delivery of this project gave us an opportunity to demonstrate our core principle of continually challenging the status quo for our valued customer.”

The winners of the CCF QLD Earth Awards will be announced at an event on the Gold Coast on 23 August.

For more information visit the Interflow website.

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

Convince your boss of the benefits of No-Dig Down Under!

These key facts will convince your boss that you need to attend one of Australia and New Zealand’s most important infrastructure events.

Read more

2022 No-Dig Down Under to feature three-stream conference program

These five reasons make No-Dig Down Under an unmissable event

In its almost 20-year history, No-Dig Down Under has grown to become one of the most important, and largest, trenchless technology events in the world.

Taking place in Melbourne on 10–13 September, the event – supported by ASTT – will feature, a world-class conference program, the largest trade exhibition in the event’s history and training courses presented by international experts.

These five reasons make No-Dig Down Under standout as an unmissable trenchless event and as important as any no-dig event anywhere in the world.

1) Learn about how leading utilities are using no-dig methods in the conference

Asset owners play a vital role in the application of trenchless technology, which is why more than 40 per cent of the conference program consists of Australia and New Zealand’s leading utilities, operators and municipalities, including Sydney Water, Yarra Valley Water, Watercare, APA Group, Tas Gas Networks and Dial Before You Dig, as well as leading contractors such as John Holland, McConnell Dowell, Interflow and HDI Lucas.

The conference program, which was assembled from more than 130 paper submissions, also includes presentations on research and education into trenchless technologies from organisations such as the Water Services Association of Australia, Monash University and the University of Auckland.

Secure your attendance at the conference by registering today via the No-Dig Down Under website.

2) See the latest products in action in the exhibition hall

The exhibition will feature more than 100 of the world’s leading suppliers, manufacturers and service providers of the latest trenchless solutions for the installation, rehabilitation and location of underground infrastructure assets.

Many of these companies will be presenting practical demonstrations of their equipment, which is an important opportunity to see these products in action.

Make sure you set aside some time to walk through the giant hall (it might take you a while!) and grab a copy of the September edition of Trenchless Australasia for a guide on who to visit.

3) Celebrate the success of the industry at the Gala Dinner and Awards Evening

Arguably the most prestigious night on the trenchless calendar, this formal black tie event – sponsored by National Environmental Equipment (NATEE) – features the presentation of the biennial ASTT Awards, recognising and celebrating the achievements of the Australasian trenchless industry.

In total, five awards will be presented, honouring the rehabilitation and installation projects of the year; new technology; young person of the year; and person of the year.

Full conference registrations include access to the function, taking place on Thursday 12 September; otherwise, tickets can be purchased individually or as a table of 10.

4) Take advantage of invaluable networking opportunities at the social functions

In addition to the gala dinner, No-Dig Down Under will feature two more social functions, providing networking opportunities in a relaxed atmosphere.

On the evening of Tuesday 10 September, the exhibition will officially open with a ceremony, sponsored by Vermeer, with drinks and appetisers in the hall.

The opening is an opportunity to get a first glimpse of the exhibition hall and speak to exhibitors about their products and services before the general public the following morning.

Taking place the next evening, Wednesday 11 September, the Networking Reception – also sponsored by Vermeer – will be hosted on the bank of Melbourne’s famous Yarra River, opposite the city’s CBD, the reception is an opportunity to rub shoulders with the leaders of Australia and New Zealand’s trenchless industry.

Not only will the function feature great food, drinks and entertainment, but also a whiskey bar for those who are that way inclined.

5) Increase your trenchless knowledge by attending a training course

Originally developed by the North American Society for Trenchless Technology (NASTT), ASTT licensed the training courses and adapted them for Australasian audiences.

They are internationally recognised as the pinnacle of trenchless education and training, and offer an opportunity to be taught by global experts on the latest techniques and best practice.

In 2019, three courses will be presented: Cured-in-place pipe (CIPP) Good Practices Course, Horizontal directional drilling (HDD) Good Practices Guidelines Course, New Installation Methods Good Practices Course.

If you are interested in registering for the training courses, contact conferences@gs-press.com.au or visit www.nodigdownunder.com.au

Organised by Great Southern Press, the publisher of Trenchless Australasia, No-Dig Down Under is made possible by the generous support of Platinum Sponsor National Environmental Equipment (NATEE); Gold Sponsor Vermeer; Silver Sponsors KRE Engineering, Pezzimenti Trenchless and Vivax Metrotech; and Bronze Sponsors Interflow, Smart Lock and Ashapura.

The event is proud to raise funds and awareness for its Charity Partner WaterAid.

For more information visit the No-Dig Down Under website.

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

Utility completes AU$3.4m infrastructure renewal

Water Corporation has renovated 4.4 km of wastewater pipes thanks to a AU$3.4 million investment from the McGowan Government as part of an ongoing effort to reline and refurbish wastewater infrastructure across Western Australia.

To complete the works, the utility contracted Interflow to insert a plastic strip liner inside the existing wastewater pipe via access chambers, which was then wound down the length of pipe.

The spiral wound liner was then expanded to fit tightly within the pipe walls, preventing corrosion, reducing the likelihood of a blockage and extending the life of the pipeline by approximately 50 years.

WA Water Minister Dave Kelly said the project was completed on time and under budget.

“Relining old wastewater pipes is important to protect the local wastewater systems and the health of the community and environment,” he said.

“Trenchless technology was used to reline wastewater pipes where possible, to minimise the impact on the community by reducing the need for extensive excavation.

“I thank the community for its patience while Water Corporation carried out this essential work.”

Around 40 local workers were engaged to complete the project.

For more information visit the Water Corporation website.

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

Australasian Trenchless Directory now online

The online directory, which was also distributed earlier in 2019 as a print publication, lists companies involved in the industry in alphabetical order, as well as in groups according to the products and services they offer.

The directory also includes important contact information for organisations such as utilities, municipalities and government departments.

Click here to access the online directory.

Listings in the directory are free and guaranteed for all ASTT members, as well as supporters of Trenchless Australasia magazine.

Companies who advertised in the directory have their listings highlighted with the addition of a company logo as well a description of the business.

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Interested in highlighting your company in the next directory?

The Australasian Trenchless Directory is updated on an annual basis to stay up-to-date with changes and developments in the industry.

To enhance your listing in the 2020 edition, including with the addition of a company logo and description, contact Great Southern Press Managing Editor Chloe Jenkins to discuss marketing opportunities at cjenkins@gs-press.com.au

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