PB&A, Inc. 4538 Cass Street, San Diego, CA 92109
619-768-8573
PB&A, Inc., recommended by KPFF Consulting Engineers, used a combination of Soil Nail Walls and RSS Walls with an Architectural Shotcrete finish, which proved to be an innovative, cost effective solution for the Earth Retention System, solve the unique challenges facing the construction of the new Student Services building.
Read MoreThe infamous Doyle Drive built in 1936, and known as the most dangerous highway in the State of California, was redesigned in 2009 and re-named the Presidio Parkway. The shoring for the excavation of the new Southbound Battery Tunnel, a cut-and-cover tunnel that is 30 ft. to 40 ft below the original grade, was originally
Read MoreThe shoring of this 60-70’ deep excavation, is the deepest that has been done to date in the downtown San Diego area. The temporary soldier beam and tie-back installation was complicated by the fact that an 83” dia. main city sewer line crossing a corner of the excavation needed to be accommodated. The plans were
Read MoreThis 60 ft embankment had slipped as a result of heavy rainfall during construction of the new Yardbird Headquarters Satellite Store in Santa Rosa, CA. PB&A, Inc designed this slope stabilization system to reinforce the hillside and protect the homes that sat beneath the hill.
Read MoreThe soil nail shoring for this project supported the 60-foot excavation for a 4-story underground parking structure, built under Main Street. Because the project was surrounded by shopping malls on both sides the project was put on a fast-tracked schedule so as to be completed and not interfere with the holiday shopping season. The soil
Read MoreThe design for this water treatment plant illustrates how PB&A, Inc. as a contractor consultant is able to integrate innovative shoring design into an existing situation. This particular project with Kiewit required that PB&A, Inc. incorporate an advanced earth retention system into this slurry wall.
Read MoreThe design for the shoring of this 45’ deep excavation, in the downtown San Diego area was complicated by the many existing utilities and the surcharge placed directly on top of the retaining wall by the Rail Road. The project covers an entire city block and fronts on the Pacific Coast Highway.
Read MoreThe surcharge of the adjacent building was successfully supported by the shoring system and the neighboring property owner’s requirement for minimal settlement was met.
Read MorePB&A used their in-house soil nail program, “Winslope” in order to develop the design for FCI (Flatiron) Contractors, for this 83 ft. excavation. Because of the unusually high forces on the nails, following the general formula for soil nailing would have resulted in extraordinarily long nails. “Winslope” was used to engineer a post-tensioned soil nailing
Read MorePB&A, Inc. has had a long history of designing Earth Retention Systems, many of which have employed soldier beam and shotcrete lagging as was used for the San Jose Airport Project. A good example of this is the North Hudson Project in Pasadena, California. The proximity of the I-210 freeway was a hurdle in getting
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