OUR SERVICES

DRILLED PIERS

Drilled piers, (also called caissons, drilled shafts CIDH piles (cast in drilled hole)) are a cost effective deep foundation system. Drilled piers are easily adaptable to numerous soil conditions. Drilled piers are capable of high axial and lateral loads. Drilled piers can be designed for “end bearing”, “friction”, or both.

At California Caissons, our drilled shaft experience includes power line projects, high rise commercial  v buildings, monopoles, houses, slide repairs, shoring walls, and bridges.

Our diverse fleet of equipment ranges from Low overhead specialty rigs, modified high speed excavators, and large convention tower rigs. We drill piers from 12” up to 10’ diameter, and we are capable of drilling up to 100’ deep.

SHORING

Whether design build, or your engineer, California Caissons can service all types of earth retention shoring. Shoring systems are used for both temporary and permanent earth retention systems. When building below grade, and you do not have room to safely slope the excavator per OSHA requirements, a shoring system is required.

The most common methods for shoring are soldier pile walls with lagging and tieback anchors, soil nail with shotcrete lagging, and sheet piles. Other methods include secant walls and soil improvement.

Shoring is typically a “top down” method. That is it will usually start from existing grade, and proceed down in 5’ lifts until the final depth is achieved. Once the excavation is complete, the permanent wall can then be constructed from the “bottom up”. Typically water proofing is place between the 2 walls.

The specific soil type at each particular job will dictate what method of shoring is the most cost effective.