复杂场地条件下砂土液化的判别问题

DETERMINATION OF SAND SOIL LIQUEFACTION UNDER COMPLEX SITE CONDITION

从简单场地条件下砂土液化的判别入手,系统介绍一般场地液化判别的基本步骤,重点分析在复杂工程场地条件下,如何全面考虑各种因素以合理选取地震液化判据。文中结合某大桥地基土液化判别实例,多方位探讨判别特殊重大工程地基土液化的有效方法,讨论了液化深度问题,与此同时,尚考虑到液化和滑塌等地质灾害的相关效应。

The procedure for determination of soil liquefaction in general sites is systematicly introduced as well as how reasonably select the criterion of sand soil liquefaction under complex sites,taking the various factors into consideration.Discussed here is an effctive method available for predicting the liquefaction of sand soil, especially for the important engineering projects, along with the example of the liquefaction of the bridge foundation. The depth to which the liquefaction of soils may be generated is disscussed as well, allowing for some relative effects of the geologic harzards in regard to the liquefaction and collapes.