Stability of high bedding slope of rock based on comprehensive geo-mechanical model test
YANG Jinwang1，2，CHEN Yuan1，2，ZHANG Lin1，2，YANG Baoquan1，2，LI Meirong1，2
(1. State Key Laboratory of Hydraulics and Mountain River Development and Protection，Sichuan University，Chengdu，Sichuan 610065，China；2. College of Water Resource and Hydropower，Sichuan University，Chengdu，Sichuan 610065，China)
Abstract：The geo-mechanical modelling experiment combining the reduction method with the overloading method by oblique lifting frame is proposed in order to investigate the stability of high bedding slope of rock. The expression of the comprehensive safety factor in the proposed method is deduced. This method is applied to the high bedding slope of rock on the left bank of Baihetan hydropower station and is compared with the result calculated from the numerical simulation with FLAC3D. The deformation characteristics，the failure mode and the safety factor of the slope calculated with two methods agree well. Therefore，the safety factor expression deduced in this paper is reasonable and the method proposed is feasible. The comprehensive safety factor Ksc = 1.526–1.575 from the test and the safety factor Kss = 1.45–1.52 from numerical calculation. The controlling factors of the slope are the bedding plane C3-1 and dipping weak structural surfaces above C3-1. The reinforcement measures taken on LS337 are effective.
杨金旺1，2，陈 媛1，2，张 林1，2，杨宝全1，2，李美蓉1，2. 基于地质力学模型试验综合法的顺层岩质高边坡稳定性研究[J]. 岩石力学与工程学报, 2018, 37(1): 131-140.
YANG Jinwang1，2，CHEN Yuan1，2，ZHANG Lin1，2，YANG Baoquan1，2，LI Meirong1，2. Stability of high bedding slope of rock based on comprehensive geo-mechanical model test. , 2018, 37(1): 131-140.
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2018, Vol. 37 
