摘要
为研究滑坡地质灾害在边坡稳定性计算中关键参数黏聚力c和内摩擦角φ的选取,以湖南省怀化地区某建筑边坡滑坡变形体作为研究对象。通过对滑坡进行地质调绘、航测建模、地质勘探等,查明其滑坡发生机制,利用反演方式选取稳定性计算关键参数,使得边坡稳定性安全系数计算结果更符合现场实际及客观规律。结果表明,该建筑边坡在天然工况处于基本稳定状态,暴雨工况处于不稳定状态,边坡表土发生滑坡可能性小,并对边坡进行稳定性、安全性评价。根据勘察计算结果,提出边坡安全治理方案及建议,为周边类似滑坡稳定性及安全评估提供依据。
In order to study the selection of key parameters cohesion c and internal friction angleφin the calculation of slope stability when landslide geological disasters occur,a building slope landslide deformation body in Huaihua slate area of Hunan Province is taken as the research object.Through geological mapping,aerial survey modeling,geological exploration and so on,the landslide mechanism is found out,and the key parameters of stability calculation are selected by inversion method,so that the calculation results of slope stability safety factor are more in line with the actual situation and objective law.The results show that the slope of the building is basically stable in the natural condition,the rainstorm condition is unstable,and the possibility of landslide in the surface soil of the slope is small.The stability and safety of the slope are evaluated.According to the results of investigation and calculation,the slope safety control scheme and suggestions are put forward,which provides the basis for the stability and safety assessment of similar landslides in the surrounding area.
作者
时涵
王志立
朱明鑫
王升
SHI Han;WANG Zhili;ZHU Mingxin;WANG Sheng(Henan Nuclear Technology Application Center,Zhengzhou 450044,China)
出处
《四川建材》
2025年第8期117-120,共4页
Sichuan Building Materials
关键词
滑坡
边坡稳定性
反演法
安全系数
安全评价
地质勘察
landslide
slope stability
method of inversion
factor of safety
evaluation of safety
geologic investigation
