Micropile and foundation underpinning work on a commercial tilt up building in Carlsbad, CA. The building had experienced subsidence of the fill soils that resulted in floor tilt. Project work included the construction of 38 micropiles that were drilled to depths ranging from 33 to 48 feet. In addition each micropile was capped with a grade beam system to underpin the affected building perimeter foundation.
This project involved foundation underpinning work providing stabilization to 7 homes at the end of a cul de sac in San Diego, CA. Each house was underpinned with cast in place grade beams. The houses were then mechanically jacked level with lifts ranging from 3 to 8 inches using a system of hydraulic jacks and sacrificial screw jacks. A total of 55,000 lbs of rebar were installed. In addition approximately 740 cubic yards of concrete was poured, along with the injection of 65 cubic yards of pressure grout to fill in underneath the lifted slabs.
Slope stabilization and slope repair work at a site in La Jolla Ca involved (10,800 Cubic yards) of grading, and the construction of caissons (48 caissons for slope stability with 36-inch diameters and 56 feet deep). The project included foundation underpinning to provide support for the houses above the slope. In addition were some site drainage repairs.