Study on the Simulation the Decrease of Shear Strength of Sliding Zone in Old Landslides WhenSubmerged by Reservoir Water in Landslide Physical Model Test
Reservoir water is main factor to make shear strength of soil in sliding zone of old landslides on reservoir banks decrease. To simulate the decrease of shear strength of sliding zone when submerged by reservoir water in landslide physical model test, a new method is put forward. The new method is that numerical method is used to simulate the changes of plastic zone of sliding zone at different uplift ing angles of physical model flume and different decreasing cohesion values of the sliding zone, and then a corresponding relationship between the uplifting angle of the model flume and the decrease of cohesion of the sliding zone of the landslide model is established, which gives a way by raising uplift ing angle of physical model flume in a short time to simulate the decrease of shear strength of sliding zone in old landslide when submerged by reservoir water for a long time.
physical model test sliding zone shear strength parameter decrease submerge
ZHANG Zhenhua ZHAO Baoping
Key Laboratory of Hazards Prevention and Alleviation, Hubei Province, Yichang, P.R.China, 443002 Key Guangzhou Hydraulic Research Institute, Guangzhou, P.R.China, 510220
国际会议
成都
英文
688-694
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）