Comparing Liquefaction Procedures in the U.S.and China

Abstract eng:
Liquefaction is a common occurrence in seismic areas in the United States and China. These countries use different methods to evaluate the potential for liquefaction. This paper compares the standard-of-practice and state-of-the-art analysis methods in both countries to determine the similarities and differences. Results are presented on method compatibility, method disagreement, and what can be learned from this comparison. Of particular importance is how the influence of fines content and/or clay fraction is treated. It is found that “clean” sand triggering curves are in general agreement between the two countries but when sandy soils contain fines the use of clay fraction as a controlling variable is not recommended because it may result in unconservative results.

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