地基抗液化能力评估方法讨论

Discussion on evaluation of liquefaction resistance of foundation soils

为了评估地基抵抗液化的能力及其影响因素,本文介绍了标准贯入试验、静力触探试验以及剪切波速试验三种评估地基抗液化能力方法的研究成果,分析了震级比例系数、覆盖压力与倾斜地面的修正系数、地震震级与峰值加速度的影响,并对地基抗液化能力的概率分析方法进行了讨论,得到的结论可为地基的抗液化能力评估提供参考。

In order to evaluate the liquefaction resistance of foundation soils and its influence factors, the research methods to evaluate the liquefaction resistance of foundation soils by the following three tests were reviewed in this paper： standard penetration test, cone penetration test and shear wave velocity measurement. The effects on the liquefaction resistance of foundation soils were analysed for magnitude scaling factors, correction factors for overburden pressures and sloping ground, and earthquake magnitude and peak acceleration. Discussion on the evaluation of liquefaction resistance of foundation soils by probability analysis was also made. Some results are obtained, which give a reference to the evaluation of the liquefaction resistance of foundation soils.