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The purpose of this paper is to provide guidelines for writing a performance specification for the construction and load testing of stone columns in cohesive soils. Specifications from five different sources, three specialty contractors and two agencies, were studied to develop the guidelines described herein. The two primary components of a performance specification are the performance criteria for the stone column foundation and the load testing procedures used to verify that the desired ground improvement has been achieved.
specifications, soil stabilization, vibro-replacement, cohesive soil, load tests
Asst. Professor, San Diego State University, San Diego, CA
Senior Engineer, Kleinfelder, Inc., Irvine, CA