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Sandy Soil Liquefaction Assessment Method Based on Improved Linear Second Order Moment Method

GAO Jian,PAN Jian (School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China)  
An improved linear second order moment method for seismic sandy soil liquefaction,which was based on the limit state equation of blow count of standard penetration test(SPT),was established through the research on reliability analyses of improved linear second order moment method.The corresponding programs for computing liquefaction probability were compiled by Matlab7.0.The results of liquefaction probability analysis for Tangshan earthquake,Hebei Province in 1976 were compared with the measurements and requirements of the building codes discrimination.The results show that this method is feasible and accurate,and it is proved to be an efficient method to evaluate indeterminacy sandy soil liquefaction.
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