饱和砂土液化评价及防治措施  

Liquefaction evaluation and countermeasures of saturated sand

作　　者：何阳 庞铁 徐定芳 陈帅奇 刘一鸣 HE Yang;PANG Tie;XU Ding-fang;CHEN Shuai-Qi;LIU Yi-Min(Hunan Institute of Geological Survey,Changsha 410116,Hunan,China)

机构地区：[1]湖南省地质调查院,湖南长沙410116

出　　处：《资源信息与工程》2020年第4期88-91,共4页Resource Information and Engineering

基　　金：湖南省自然资源厅“湖南省常德市城市地质环境综合调查评价(201703010)”项目;“湖南省地勘局常德城市地下空间开发利用地质环境适宜性评价”科研项目联合资助。

摘　　要：通过对研究区饱和砂土的调查和试验分析研究,阐述了砂土液化的形成机理和造成的危害,并根据试验结果进行了评价。区内分布有63.30 km 2可液化的粉土、粉细砂层,可能对未来的城市建设及重要交通设施存在一定的危险,应该在城市和重要工程规划建设时,采取相应措施,并提出了相应的地基处理方法,以期为常德市城市规划建设提供科学依据。Based on the investigation and experimental analyses of saturated sand in the study area,the formation mechanism of sand liquefaction and its damage were expounded,and the evaluation was demonstrated according to the test results.There are 63.30 km 2 liquefiable silty and fine sand layers in the study area,which may endanger future urban construction and important traffic facilities.Therefore,countermeasures should be taken in the planning and construction of cities and important projects.Some foundation treatment methods were put forward,with a view to providing a scientific basis for urban planning and construction in Changde.

关 键 词：饱和砂土 地震 液化 触探试验 

分 类 号：TU441[建筑科学—岩土工程]