Experimental and numerical analysis on the responses of slope under rainfall

被引：11
作者：
Lu, X. B. [1 ]
Ye, T. L. [1 ]
Zhang, X. H. [1 ]
Cui, P. [2 ]
Hu, K. H. [2 ]
机构：
[1] Chinese Acad Sci, Inst Mech, Beijing 100084, Peoples R China
[2] Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
来源：
NATURAL HAZARDS | 2012年 / 64卷 / 01期
关键词：
Debris flow; Landslide; Initiation of debris flow; Rainfall; DEBRIS-FLOW; SATURATED SAND; WATER FILM; SOIL; INITIATION; LANDSLIDES; MECHANISM; FAILURE;
D O I：
10.1007/s11069-012-0277-3
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Rainfall is an important factor to trigger the slope failure such as landslides and debris flows. First, the relationship between rainfall duration with the initiation of debris flow and rainfall intensity was mainly studied by the series tests in a box model. Then, the rainfall induced responses of slopes and the initiation of slope failure were simulated by using the software FLAC2D based on the soil parameters in Weijia Gully, Beichuan County, Sichuan Province. The effects of the slope angle, rainfall intensity, soil parameters on the development of the stress, and pore pressure in the soil of the slope were analyzed. It indicates that largest displacements in the slope are mainly located near the toe. With the increase of the rainfall intensity, the effective stress in the slope decreases and the displacement increases.
引用
收藏
页码：887 / 902
页数：16
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