Analysis on Seismic Response Characteristic and Parameter Sensitivity of Typical Liquefaction Site
Under the action of strong earthquake,the liquefaction of site soil increases the failure rate of foundation,thereby exacerbating the possibility of building(structure)damage.In order to better clarify the main influencing parameters of site liquefaction under strong earthquake,a typical liquefiable site is designed,and the seismic response characteristics of site soil under soil liquefaction are studied by finite element method.Furthermore,taking the surface displacement and surface acceleration as the evaluation criteria,the first-order second-moment method and the tornado diagram method are used to systematically analyze the sensitivity of the influencing parameters.The main influencing parameters of the seismic response of the liquefiable site are explored,and the anti-liquefaction measures are proposed.The feasibility is proved by numerical value,which lays a foundation for optimizing the anti-liquefaction measures of the site.
liquefaction siteseismic responsesensitivity to liquefaction factorOpenSees
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