安全与环境工程2024，Vol.31Issue(3)：198-205,8.DOI:10.13578/j.cnki.issn.1671-1556.20221594
库水位降速对缓倾角堆积层滑坡稳定性的影响
Influence of declining rate of reservoir water level on the stability of gently inclined colluvial landslide
摘要
Abstract
Gently inclined colluvial landslide is a common type of geological hazard in the reservoir area.It is often characterized by large volume,complex material composition,and periodic and long-term deforma-tion.The declining of reservoir water level is often an important factor inducing the deformation and failure of such landslide.Therefore,it is of great significance to study the influence of the declining rate of reser-voir water level on the stability of gently inclined colluvial landslide.In this paper,Hejiapingzi landslide in Guizhou Province as a gently inclined colluvial landslide is taken as an example to study the stability re-sponse of different landslide material under different declining rates(0.5,0.7,0.9,1.1 and 1.3 m/d)of reservoir water level.Under different declining rates of reservoir water level,different landslide parts show that the stability firstly decreases and then increases,and the stability coefficient of the landslide declines with the increase of the declining rate.The deformation of the landslide area with weak permeability is greater than that in the area with strong permeability.The simulation results are consistent with the on-site monitoring data,and the response of landslide stability to the declining rate of reservoir water level shows obvious spatial differences.In the risk prevention and control of gently inclined colluvial landslide,the rela-tionship between the declining rate of reservoir water level,the landslide material and the landslide defor-mation should be fully considered.关键词
缓倾角堆积层滑坡/库水位下降速度/滑体结构差异/滑坡稳定性Key words
gently inclined colluvial landslide/declining rate of reservoir water level/difference in structure/landslide stability分类
资源环境引用本文复制引用
冉爱民,杨威,彭嘉畅,刘远松,甘银波,余斯迪,杨硕,李德营..库水位降速对缓倾角堆积层滑坡稳定性的影响[J].安全与环境工程,2024,31(3):198-205,8.基金项目
国家自然科学基金项目(41772310) （41772310）
