Internal Struts Archives - PB&A Inc
LA Metro Westside Subway Extension-SOE Design
February 8, 2018PB&A is serving as EOR for the temporary Shoring of Excavation for their client, Skanska/Traylor/Shea, for four underground stations that will comprise the Purple Line Extension, providing a high-speed alternative for commuters traveling between downtown Los Angeles, the Miracle Mile, Beverly Hills and Westwood. The 100 ft. excavation for the first of the Stations, La
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PB&A was retained by RCCJV (Skanska-Traylor) to provide the design for the Shoring of Excavation (SOE) for two of the stations at the LA Metro Regional Connector Project, 2nd and Hope Street and 2nd and Broadway. The Hope Station, when finished, will serve as one of the stations along a subterranean rail tunnel connecting the
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Transbay
June 14, 2013Check out Transbay Transit here Bridges The First Street Bridge installation, the first of three temporary bridges being installed at the Transbay Transit Project, was successfully installed over the Memorial Day Weekend, 2012. The three bridges, at First Street, Fremont Street and Beale Street are necessary to keep the construction of the Transbay Transit Center
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Doyle Drive
June 14, 2013The 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
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Pasadena Goldline
April 25, 2013PB&A spent most of 2001 working with Kiewit/Washington on the design for this mile long underground tunnel. Over 250,000 square feet of shoring was installed in this congested urban area, the engineering complicated by the difficult accessibility issues. A complex mixed design of soldier beams, underpinning and internal struts support the surcharge of a six-story
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Gap Headquarters
April 25, 2013The Gap Headquarters excavation sat on the Embarcadero, directly across the street from the San Francisco Bay. The water table was tidal and regularly fluctuated. PB&A, Inc. used 80 ft. long soil cement tangent piles with cross-lot bracings for the shoring design. Shoring contractors, Condon-Johnson Associates, were very successful in maintaining dry excess and a
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East Side LRT – Boyle Station
April 25, 2013The East Side Light Rail Transit (LRT) Extension Project takes the LRT from Downtown Los Angeles to Glendale, CA. There are three underground stations linked by the underground tunnel that will service the eastbound route. The first, and largest of the stations to be built is the Boyle Street Station, for which an excavation of
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