砂土液化判别方法研究的若干进展

Research Progress on Methods of Sand Liquefaction Potential Evaluating

砂土液化现象是常见的地震地质灾害,通常会引起建(构)筑物基础的不均匀沉降及结构的破坏,造成人员伤亡和财产损失,科学合理的砂土液化判别方法是预防液化灾害的有效手段,因此,对砂土液化判别方法展开研究对砂土液化的研究有着十分重要的现实意义。在查阅大量资料的基础上,对目前现有的砂土液化判别方法进行了评述和分析,指出了现有液化判别方法存在的问题,针对这些问题进行讨论,包括深层范围内砂土液化公式的确立、液化判别方法的适用性和液化判别方法的适用对象,并对砂土液化判别方法进行了展望,为今后的研究方向提供一定参考。

The sand liquefaction is a common and geological earthquake disaster, which usually causes uneven settlement and structural destruction of the foundation, resulting in casualties and property losses. The scientific and reasonable identification method of soil liquefaction is an effective method to prevent the liquefaction disaster. Consequently, it is of great practical significance to carry out the research on the identification method of sand liquefaction. On the basis of consulting a large amount of data, we reviewed and analyzed the existing methods for evaluating sand liquefaction, and pointed out the problems of the existing methods. In view of these problems, we discussed the establishment of formula of sandy liquefaction in deep layer, the applicability and the applicable object of liquefaction discrimination method. At last, we look forward to the identification method of sand liquefaction, which will provide some reference for future research direction.