Central Interceptor’s 18 gantries slotted

Central Interceptor’s 18 gantries slotted

The TBM was launched in July, with gantries being lowered into the shaft as tunnelling progressed since the launch.

The Central Interceptor TBM, known as Hiwa-i-te-rangi, is now 190 m in length.

Each gantry will store the equipment required to run the TBM which will build New Zealand’s longest bored wastewater tunnel.

The gantries will include equipment such as electrical supplies, conveyance, segment feeders and segment erectors.

The gantries are even fitted with lunchrooms and toilet facilities, as well as a refuge to be used in emergencies.

Ghella Abergeldie Joint Venture (GAJV) is part of the construction of the tunnel as the delivery team.

GAJV tunnel manager Michele Petris said he welcomed the announcement.

“Completing the assembly of the tunnel boring machine was a good way to finish this very weird year,” Petris said.

The Hiwa-i-te-rangi TBM is now finished underground as the final gantry was slotted into place.

An acoustic shed is being constructed above the launch shaft to reduce noise and strict COVID-19 safety protocols are being followed.

The Central Interceptor is New Zealand’s largest ever wastewater project.

It comprises close to 20 km of tunnels, 19 shafts, a major pump station and considerable wastewater management and network infrastructure works.

The project plans to run underground from Grey Lynn to Watercare’s Māngere Wastewater Treatment Plant.

For more information visit Watercare’s website.

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Domestic wastewater pipeline renewals 2021/22 
Issued by: Gisborne District Council
Closing Date: 10 December 2021
Location: New Zealand
Description: The request for proposal is an invitation to suitably qualified suppliers to submit a proposal for the renewal of existing domestic wastewater pipeline (trenchless).

Horizontal directional drilling to provide services to Horsham Nature Play Park
Issued by: Horsham Rural City Council
Closing Date: 10 December 2021
Location: Victoria
Description: Horsham Rural City Council invites you to provide a quotation for the installation of horizontal directional bore for the water, electrical and waste services for the Horsham Nature Play Park.

Sewer and stormwater mains lining
Issued by: Hunter Water Corporation
Closing Date: 16 December 2021
Location: New South Wales
Description: The work under this contract includes, but is not limited to, the rehabilitation of gravity sewer and stormwater mains by the installation of lining systems to restore structural integrity, prevent infiltration and exfiltration, eliminate root ingress and/or restore the hydraulic capacity of the mains.

The gravity sewer mains to be rehabilitated will be from a nominal diameter of 150 mm up to a maximum of 600 mm. The stormwater mains to be rehabilitated will be from a nominal diameter of 750 mm up to a maximum of 1050 mm.

Big Rivers Region, Central Arnhem Road, provision of water bore drilling services
Issued by: Department of Infrastructure, Planning and Logistics
Closing Date: 15 December 2021
Location: Northern Territory
Description: A general outline of the work to be carried out under the contract comprises of drilling and casing of two new road construction water bores on Central Arnhem Road for prioritised upgrade works at Mountain Valley and Mainoru.

Pipeline duplication contract administration, inspection and verification services
Issued by: Townsville City Council
Closing Date: 15 December 2021
Location: Queensland
Description: RRD2DWTP Pipeline Duplication Contract Administration, Inspection and Verification Services

Country South Water Retic Renewal Program
Issued by: Water Corporation
Closing Date: 15 December 2021
Location: Western Australia
Description: Water Corporation is inviting organisations with suitable experience, capability and capacity to submit a Bid for our Country South Water Reticulation Renewals Package for sites in Narrogin and Wagin, Western Australia. The scope of work requires the supply and installation of DN100/DN150 Series 2 PN16 PVC-M water reticulation main and associated works.

Panel of providers for stormwater CCTV
Issued by: Hobart City Council
Closing Date: 08 December 2021
Location: Tasmania
Description: Panel of providers for closed circuit television (CCTV) inspection and cleaning of stormwater infrastructure.

Each fortnight, 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 three months free on their subscription plans.  

Email support@australiantenders.com.au for more information.  

For more tender information visit the Australian Tenders website

Britomart Station

CRL completes contract at Britomart

CRL chief executive Sean Sweeney said more than five years of exceptional and innovative work, pushing construction techniques to new limits, delivered an outstanding result – preserving Auckland’s historic past while building a world class railway for a modern city.  

“Achieving all that required some astonishing engineering – we pushed accepted construction boundaries with some amazing innovative techniques,” Sweeney said.  

Britomart Station remained fully operational with a connecting door separating busy platforms from a construction site, while 14 thousand tonnes of a building with a top heritage rating were safely transferred on to temporary foundations. 

C1 was one of the earliest contracts for New Zealand’s largest transport infrastructure project to revitalise the city’s rail network.  

The $4.4 billion CRL project connects Britomart and the Mt Eden Station on the Western Line with tunnels about three kilometres long under central Auckland.   

 CRL is expected to finish in late 2024 and will double the number of people living within 30 minutes of travel of the central city with train services that will be more frequent and faster.  

This is after the City Rail Link’s tunnel boring machine broke through into the Karangahape Station construction site on October 17. 

The machine, named Dame Whina Cooper, breached a 100-millimetre-thick protective wall of concrete into the station cavern, 32 metres below ground. 

 Auckland’s recent five-week-long COVID lockdown delayed the TBM’s planned September breakthrough, but tunnelling was able to resume at full speed when lockdown restrictions eased and the TBM arrived ahead of its rescheduled November deadline.  

 The TBM is due at Aotea Station in early 2022, where it will be connected with the tunnels already built from Britomart and under the lower end of Albert Street. 

The TBM will then be disassembled and trucked back to the Mt Eden site for another journey back to Aotea Station. 

For more information visit the CRL website.