坡顶裂隙对边坡渗流规律及稳定的影响*

为了探究坡顶裂隙对边坡内雨水渗流规律及整体稳定的影响，以某露天矿边坡为研究

对象，采取数值模拟的研究方法，分别建立无裂隙和有裂隙2种边坡模型，观察在降雨时边坡渗流规

律及稳定性变化。模拟结果发现：降雨情况下，当坡顶存在裂隙时，雨水入渗量增加，且坡脚入渗量

增加最明显，边坡的安全系数大大降低，临界滑移面向坡脚发生了一定的延伸。结果说明，当坡顶存

在裂隙时，降雨对坡脚的影响最为严重，应当注意坡脚的边坡治理。

In order to explore the influence of slope top crack on the seepage regularity of rainwater in

the slope and the overall stability，a certain open-pit mine slope was taken as the research object，and two

models of slope without crack and slope with crack were established by numerical simulation method to ob⁃

serve the seepage law and stability changes of slope during rainfall. The simulation results show that in the

case of rainfall，when there are cracks at the top of slope，the rainwater infiltration increases and the infiltra⁃

tion at the foot of slope increases most obviously. The safety factor of the slope is greatly reduced，and the

critical slip extends to the slope foot. The results show that when there are cracks at the top of the slope，the

rainfall has the most serious effect on the slope foot，and the treatment of the slope foot should be paid atten⁃

tion to.

1. School of Resources and Safety engineering，Wuhan Institute of Technology;

2. School of Mechanics and Materials，Hohai University

摘要：

为了探究坡顶裂隙对边坡内雨水渗流规律及整体稳定的影响，以某露天矿边坡为研究

对象，采取数值模拟的研究方法，分别建立无裂隙和有裂隙2种边坡模型，观察在降雨时边坡渗流规

律及稳定性变化。模拟结果发现：降雨情况下，当坡顶存在裂隙时，雨水入渗量增加，且坡脚入渗量

增加最明显，边坡的安全系数大大降低，临界滑移面向坡脚发生了一定的延伸。结果说明，当坡顶存

在裂隙时，降雨对坡脚的影响最为严重，应当注意坡脚的边坡治理。

关键词:

渗流规律边坡稳定数值模拟裂隙

Abstract: