Tunneling

Conduit 16 launch and receiving shafts

Conduit 16 launch and receiving shafts

Scope

Michels constructed secant compression ring launch and receiving shafts for a microtunneling project. The launch shaft was comprised of 46 intersecting 1-meter diameter secant piles drilled to a depth of 54 feet. The receiving shaft was comprised of 38 intersecting 1-meter diameter piles drilled to a depth of 52 feet. The project required a shoring system below the water table in extremely permeable soil to allow Michels tunneling team to use the shafts to bore a tunnel under railroad tracks. The secant piles were drilled into a dry clay stone to seal off all water concerns. Because the secant piles are interlocked and tip out in dry clay stone, the tunneling work was completed in a dry environment.

  • Michels constructed secant compression ring launch and receiving shafts for a microtunneling project. The launch shaft was comprised of 46 intersecting 1-meter-diameter secant piles drilled to a depth of 54 feet. The receiving shaft was comprised of 38 intersecting 1-meter-diameter piles drilled to a depth of 52 feet.

Projects

Michels built caissons and installed H-pipes for the Torrence Avenue Bridge along the Grand Calumet River.

Deep Foundations

IDOT Torrence Avenue

Illinois

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IDOT Torrence Avenue

Michels installed 400 LF of sheet piling and 992 pipe piles to support construction in downtown Milwaukee.

Deep Foundations

Fiserv Forum

Wisconsin

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Fiserv Forum

Michels built 458 secant piles and 100 caissons in 90 days for a 10-story, 600,000-square-foot building on the site of the new McDonald's corporate headquarters.

Deep Foundations

110 N Carpenter

Illinois

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110 N Carpenter

Deep Foundations

Yesler Terrace

Washington

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Yesler Terrace

Michels scope of work is to install 242 drilled shafts to support the piers for anew bridge. The installation of the drilled shafts was completed with the simultaneous use of up to four drill rigs. Utilizing barges, 233 drilled shafts were installed in the river. Michels crews also installed 7-foot and 10-foot permanent steel casing into bedrock for each shaft.

Deep Foundations

I-74 Mississippi River Bridge

Illinois

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I-74 Mississippi River Bridge

Michels installed 857 H-piles 60 feet deep to bedrock for a deep foundation system for the R1VER project, a mixed-use waterfront development.

Deep Foundations

R1ver

Wisconsin

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R1ver

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