关于软弱粉质粘土地震液化或震陷的判别标准

On liquefaction criteria of low plasticity fine soils

文中简要介绍了判别细粒土地震液化分析方法的发展历程,指出了工程建设中考虑细粒土地震液化问题的必要性。基于已有研究成果,阐述了可用于工程设计的软弱粉质粘土地震液化简化判别方法,并对建筑抗震设计新规范中增加的相关条款进行了说明解释。

Liquefaction of low plasticity fine soils is observed during past earthquakes. It shall bear in mind at investigating seismic safety of engineering site that evaluation of liquefaction potential is carried out of the fine soils and the effective measure of liquefaction mitigation is taken. Based on recent earthquake discovery and research developments, the liquefaction criteria are suggested of the fine-grained soils to Chinese code for seismic design of buildings.