Rob Carr passes midpoint on Quinns Main Sewer
Jan 13, 2023
Rob Carr continues to kick goals on the construction of the Quinns Main Sewer project for Water Corporation with approximately half of the project now complete.
A combination of micro tunnelling and open trench pipe laying will be used to construct a 1.9 km wastewater pipeline with an internal diameter of 1.8 m, including one of the longest micro tunnelled drives carried out in WA. When completed this will enable the transfer of wastewater from the adjacent area to the Alkimos Wastewater Treatment Plant in accordance with the long-term wastewater distribution system plan.
The project commenced construction activity in February 2022, and has swiftly seen the completion of two of the four major micro tunnelled drives. The first drive of 190 m was completed in May with the second 312 m drive successfully completed in mid July 2022. Both drives were predominately through solid limestone conditions and were completed on time.
During this time, construction was also ongoing and since completed for the 24 m deep shaft required for the longer 637 m curved drive. Shaft 2097 was constructed using a combination of in situ concrete caisson sinking and underpinned precast segment techniques. The construction method was altered to suit the varying ground conditions encountered during the construction of the shaft.
Work has since commenced on our 3rd drive, some 630m long with our tunnel boring machine “Bakton launched from this same 24 m deep shaft. Bakton is 200m into its journey and crossed the Joondalup rail line and the Mitchell Freeway during a planned rail shutdown in late August 2022.
The 630 m drive also consists of a 600 m radius curve which necessitated the use of a VMT guidance system with the drive traversing through the most challenging ground conditions on the project where the machine will tunnel through a combination of sand and soft to hard pinnacle limestone.
Other works on the project consisted of a 400 m open trench section of sewer pipeline, which has been since has been laid with welding of the PVC pipe liner and access shaft construction now underway for that section of work.
Following completion of the tunnelling, construction will commence on the 27 m deep vortex manhole. The vortex manhole will be constructed from in situ reinforced concrete utilising both PVC and GRP to protect the concrete from corrosion caused by the sewer gasses.
The entire project is due to for completion in early 2023.
More News and Articles
Jul 24, 2024
News
UK utilities place multiple orders for settlement tank technology
Northumbrian Water, Southern Water, and Dŵr Cymru upgrading wastewater sites
Three UK water utilities have agreed orders for the installation of a total of six conical settlement …
Jul 22, 2024
Article
Reusing wastewater, rethinking water: Maharashtra's roadmap
How Maharashtra turns wastewater into a resource
Water resource management is a critical issue globally, and in India, the state of Maharashtra is pioneering efforts to regulate and …
Jul 19, 2024
News
Kansas City advances fire hydrant leak detection technology
An acoustic fixed-base pipe monitoring technology that uses fire hydrants to host multi-sensor devices, has already found more than 30 leaks for Kansas City Water, says Lou Rossetti …
Jul 17, 2024
News
When two bores right a wrong
The Edge Underground team is adamant: there is always a risk of things going wrong on a trenchless project, even for the most prepared contractor.
Experience and having the right equipment can be the difference between …
Jul 15, 2024
News
Adapting to a region’s growing water and wastewater needs
Gippsland Water has completed two major projects to provide local communities with water security. Trenchless Australasia takes a look at the two projects helping increase water supply …
Jul 12, 2024
News
Connections made in Glastonbury
Difficult ground conditions called for a specialist solution when new PE pipes for potable water services had to be installed underneath two, 10-metre road crossings in the grounds of the UK’s ultimate music festival …
Jul 10, 2024
Article
The Water-Energy Nexus: Interdependence and Challenges
Niclas Andersson, CEO of AirWater2All, explains the connection between water and energy. The importance of this connection and the areas in which it needs to be considered are explained …
Jul 08, 2024
News
Minimising cultural impacts with trenchless technology
Yarra Valley Water is leveraging the benefits of trenchless technology to lessen impacts on the Upper Darebin Creek branch sewer project.
The project consists of building a 2.7km sewer pipe …
Jul 05, 2024
News
SprayWall: Reinforcing Underground Infrastructure with Unmatched Strength
In the trenchless technology industry, finding a rehabilitation solution that offers ease of installation and exceptional structural integrity is paramount.
For three decades, …
Jul 01, 2024
News
“Don’t let stereotypes hold you back”
Trenchless Australasia sat down with Rob Carr project manager Marie Piette to discuss her career and work at the microtunnelling contracting company.
From Norway to Cambodia and now Perth, Western Australia, …
Jun 28, 2024
News
Transforming Wastewater: Towards Climate-Neutral Sewage Treatment
Baden-Württemberg’s Minister President Winfried Kretschmann recently toured the Büsnau Training and Research Sewage Treatment Plant, where a pioneering project led by researchers …
Jun 26, 2024
News
Bothar advances with significant new contracts
Having commenced work on the Fitzroy to Gladstone Pipeline earlier this year, Bothar Boring and Tunnelling has announced the award of further contracts as part of its ongoing collaboration with …
Contact
Trenchless Australasia
379 Docklands Dr
VIC 3008 Docklands
Australia
Phone:
+61 3 9690 8766