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Home Case Studies Pine Creek Mine Foundation Lifting & Voidfill - Bishop, CA

Pine Creek Mine Foundation Lifting & Voidfill - Bishop, CA

LEARN MORE ABOUT OUR RECENT CASE STUDY ON HOW EAGLE LIFTED AND STABILIZED PINE CREEK'S MINE IN BISHOP, CA.

Project Challenges

• Customer needed to lift & stabilize a building settling as much as 15” in the most severe corner

• The entire footer of the building was encased in an underground network of timber that was part of the 38ft. retaining wall cribbing. Timber removal was a challenge to access the footing, for each push pier install.

Design Approach

• 30 push piers installed along the perimeter of the back wall, and halfway down the perpendicular sidewalls of the building

• Expanding polyurethane injected beneath the slab to fill the voids created by the lift.

 

Results

  • Although the goal was to recover the 15”, the building was lifted 10” before the tension rods of the building could become dangerously tight
  • Project Duration: 1 week