West Trunk Sewer, Contract 2, Peel Region, Canada
Andrew Cushing, P.Eng., M.Eng.
Associate Geotechnical and Tunnelling Engineer at Arup
The Region of Peel is installing a large sanitary sewer pipe along Erin Mills Parkway, Lincoln Green Way and Lincoln Green Closer. This work is to improve existing water and wastewater services.
Contract 2 of the West Trunk Sewer involves 3.5 km of 3m internal diameter sewer tunnel excavated through a overburden-infilled valley and swelling Georgian Bay Shale. Tunnel design work by Arup included development of a 6-piece precast concrete segmental lining, formed with steel fiber reinforced concrete. Sections of the project involved the first use of Herrenknecht's Combisegments in North America, which allows the corrosion protection to be integrated and installed with the precast lining.
Furthermore, a compressible backfill grout mix was developed by tunnel contractor Technicore Underground, in conjunction with BASF, for injection behind the tunnel lining within the sections of tunnel in rock, to alleviate the structural effects of time-dependent swelling deformation of the shale on the tunnel lining.
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1 年You dont see that everyday on Linkedin. Thank you for sharing!
Associate Geotechnical and Tunnelling Engineer at Arup
4 年Mike MacFarlane, P.Eng
Gesch?ftsführer / Managing Director bei Herrenknecht Formwork Technology GmbH
5 年Great Project! Great Partners! Special Thx to Tony DeMillo and it's Technicore guys - they did an awesome Job!
Sr. Project Manager
5 年Excellent work for fellows Best regards, Gil