Analysis of the causes of deep cracks in the right bank slope of the V line of Lenggu Hydropower Station and the slope stability
According to the characteristics of deep crack that is only developed in V line right bank slope in Lenggu Hy-dropower Station,the cause of deep crack is analyzed on the basis of the engineering geologic condition,the slope struc-ture and the Gaxiapa landslide failure mode.The results indicate that the deep crack of the slope is caused by the gravita-tional creeping instead of common unloading,and the distribution range and opening degree of deep crack of slope are con-trolled by the development degree of gentle-dip surface.By analyzing the deformation degree of deep fissures in the slope and combining it with the FLAC3D simulation of the overall slope stability,it was found that the stability of the upstream side of the slope after water storage was lower than that of the downstream side.This provided a reliable basis for taking reasonable support measures for the slope in the future and served as a reference for the study of slope stability during wa-ter storage in similar hydropower stations.
Lenggu Hydropower Stationslope in the dam site areadeep crackgenetic mechanismdeformation and failure mode
万方数据
维普
