短时强降雨对镇江下蜀土边坡稳定性的影响分析  

Influence analysis of short-time heavy rainfall on the stability of Zhenjiang Xiashu loess slopes

作　　者：王威[1] 姜啸[1] 崔雨 刘顺青[2] WANG Wei;JIANG Xiao;CUI Yu;LIU Shunqing(The 3rd Geological Brigade of Jiangsu Geology&Mineral Resources Bureau,Zhenjiang 212001,China;School of Architecture and Civil Engineering,Jiangsu University of Science and Technology,Zhenjiang 212005,China)

机构地区：[1]江苏省地质矿产局第三地质大队,江苏镇江212001 [2]江苏科技大学土木工程与建筑学院,江苏镇江212005

出　　处：《水科学与工程技术》2021年第3期1-3,共3页Water Sciences and Engineering Technology

基　　金：江苏省地质矿产勘查局科研项目(2019KY03);江苏省地质勘查专项资金项目(2018)。

摘　　要：基于镇江地区的降雨特征,采用Midas GTS NX建立下蜀土边坡的数值分析模型,分别分析短时强降雨入渗时间及坡度对镇江下蜀土边坡稳定性的影响。研究结果表明,短时强降雨作用对不同坡度镇江下蜀土边坡的稳定性影响较大,但随着强降雨时间的持续延长,安全系数值变化较小。研究结果对镇江地区下蜀土边坡的设计及养护治理具有重要意义。Based on the rainfall characteristics of Zhenjiang area,the numerical analysis models of Xiashu loess slopes are established by Midas GTS NX,and the influence of infiltration time of short-term heavy rainfall and slope on the stability of Xiashu loess slopes in Zhenjiang is analyzed respectively.The results show that the short-term heavy rainfall has great influence on the stability of Xiashu loess slope with different slopes,but with the continuous increase of heavy rainfall time,the values of safety factor change little.The research results are of great significance to the design and maintenance of Xiashu loess slopes in Zhenjiang area.

关 键 词：强降雨 下蜀土边坡 稳定性 短时 孔隙水压力 

分 类 号：TU441[建筑科学—岩土工程]