Tunneling

Big Lake W14

Big Lake W14

Scope

The project involved the installation of nearly 2.3 kilometres of sanitary sewer at a below grade depth ranging from 3.5-10 metres in an area home to 27,000 residents. 5 launch and 6 reception shafts for a total of 11 steel sheet pile shafts were constructed. The shoring was installed with an ABI Hydraulic Pile Rig which was used vibration to drive steel sheets in place. The process of pipe jacking was utilized to push the pipe and MTBM through the ground on a jacking frame. A spoil removal and separation method was used to carry the spoils to a separation tank on the site surface was also used.

A Microtunnel Boring Machine (MTBM) was used, as well as HOBAS Pipe, Permaloc, Spectra Shield, and Flowcrete Pipe which had never before been used in North America.

Projects

Michels Canada completed a 117-metre long, 2,121-mm diameter tunnel as an outfall for a new wastewater treatment plant on Vancouver Island.

Tunneling

McLoughlin Point Wastewater Treatment Plant outfall

BC

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McLoughlin Point Wastewater Treatment Plant outfall

Michels built a 148-metre long, 1.8-metre diameter tunnel under the Mary Hill Bypass, a major four-lane highway in the Vancouver metropolitan area, to house a 1.5-metre diameter water main.

Tunneling

Port Mann Main No. 2

BC

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Port Mann Main No. 2

The parallel tunnels both run a length of 1500m at a below ground depth of approximately 14m in Saskatoon.

Tunneling

McOrmond Drive Sanitary & Sewer

SK

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McOrmond Drive Sanitary & Sewer

Construction consisted of a 305-metre horseshoe tunnel with a diameter of 1800 millimetres, a cast-in-place junction chamber, a live sewer tie-in, and a 1200-millimetre diameter sewer installed beneath a very busy arterial roadway.

Tunneling

Jervis Forcemain

BC

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Jervis Forcemain

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