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The BP Crown Landing LNG project is expected to deliver 1.2 billion cubic feet of natural gas per day, or enough natural gas to supply approximately 5 million homes per day in the Mid-Atlantic region. The process involves bringing natural gas that has been cooled to a liquid (liquefied natural gas or LNG) and regasifying it so that homes, electricity plants and industry in the Northeast region have access to a reliable energy supply.
The BP Crown Landing site will house three (3) LNG storage tanks, a processing facility, and dock terminal. WPC was selected by BP to provide the comprehensive geotechnical investigation and seismicity hazard study as part of the permit application to the Federal Energy Regulatory Commission (FERC). The subsurface conditions of the site were explored with a combination of soil test borings, CPT and DMT soundings. Field vane shear tests were performed at selected SPT boring locations. In conjunction with the CPT soundings, pore pressure dissipation tests and shear wave velocity profiles were performed at the center of the three tanks. FERC approved the project in June of 2006.
Following the geotechnical investigation, WPC performed an instrumented pile load test program. The pile test program included PDA testing and drivability analysis, instrumentation using vibrating wire strain gages, axial load tests, and lateral load tests.
A surcharge test program was performed to evaluate the magnitude and time rate of consolidation and the need for wick drains. The results were used to calibrate to settlement model for the prediction of shallow foundation and containment dikes.
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