降雨渗流作用下滑坡稳定性研究——以平塘县龙门滑坡为例  

Research on Landslide Stability under Rainfall Seepage——Taking Longmen Landslide in Pingtang County as an Example

作　　者：韩庆楼 王勇 HAN Qinglou;WANG Yong(Geophysical and Geochemical Exploration Team,Non-ferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou,Qiannan 558000,Guizhou,China)

机构地区：[1]贵州省有色金属和核工业地质勘查局物化探总队,贵州黔南558000

出　　处：《工程技术研究》2023年第1期193-195,共3页Engineering and Technological Research

摘　　要：目前滑坡稳定性计算中,常采用不平衡推理传递法,但该方法未考虑动水压力对滑坡稳定性的影响,故存在一定局限性。基于此,文章引入地表径流公式,将其转化为地下渗流公式,与不平衡推理传递法相结合,推理得到在降雨渗流作用下的滑坡稳定性计算公式,并通过实例计算得出滑坡稳定性将随着降水量增加而降低的结论。At present, the unbalanced reasoning transfer method is often used in the calculation of landslide stability,but this method does not consider the influence of hydrodynamic pressure on landslide stability, so there are some limitations. Based on this, this paper introduces the surface runoff formula and transforms it into the underground seepage formula. Combined with the unbalanced reasoning transfer method, the calculation formula of landslide stability under the action of rainfall seepage is deduced, and the conclusion that the landslide stability will decrease with the increase of precipitation is obtained through the example calculation.

关 键 词：滑坡稳定性 不平衡推力法 孔隙水压力 动水压力 

分 类 号：P642.22[天文地球—工程地质学]