降雨作用下某滑坡的稳定性研究
STUDY ON STABILITY OF A LANDSLIDE UNDER RAINFALL
刘强 1阿发友 2沈显泽2
作者信息
- 1. 国家石油天然气管网集团有限公司华南分公司,广州 510600
- 2. 昆明理工大学国土资源工程学院,昆明 650093;自然资源部高原山地地质灾害预报预警与生态保护修复重点实验室,昆明 650093
- 折叠
摘要
以百昆成品油管道建水站MJ053滑坡为分析对象,在结合滑坡野外调查和室内外试验工作的情况下,结合非饱和土的渗流理论,应用数值模拟方法对降雨作用下的滑坡形成机理和稳定性进行研究,分析滑坡在连续3 d强降雨作用下的稳定性变化情况.结果表明:滑坡受强降雨影响明显,滑坡在极端强降雨条件下,滑坡土体位移在短时间内迅速增大,稳定性则下降至不稳定状态,该滑坡必须进行治理.
Abstract
In this paper,the MJ053 landslide of the Baise-kunming oil product pipeline located in Jianshui County,China,is taken as the object of analysis,the formation mechanism and stability of the landslide under the action of rainfall are studied by using the numerical simulation method combined with the percolation theory of unsaturated soil,and the stability change of the landslide under the action of the continuous heavy rainfall for three days is analyzed.The results show that the landslide is obviously affected by heavy rainfall.Under the condition of extreme heavy rainfall,the displacement of the landslide soil increases rapidly in a short time,and the stability of the landslide decreased to an unstable state,and the landslide must be treated.
关键词
滑坡/稳定性/降雨/数值模拟Key words
landslide/stability/rainfall/numerical simulation引用本文复制引用
出版年
2023
NETL
NSTL
维普
万方数据