基于极限平衡理论的泥石流沟边坡稳定分析

英文篇名：Analysis of Slope Stability of Debris Flow Gully Based on Limit Equilibrium Method
中文刊名：中国西部科技
英文刊名：Science and Technology of West China
作者：孔科 ; 龙军飞 ; 付铮 ; 王永刚
英文作者：KONG Ke ; LONG Jun-fei ; FU Zheng ; WANG Yong-gang ; Hydrochina Chengdu Engineering Corporation
中文关键词：极限平衡理论 ; 泥石流沟 ; 边坡稳定 ; 渗流 ; 浸润线
英文关键词：Limit Equilibrium Method ; Debris Flow Gully ; Slope Stability ; Seepage ; Saturation Line
出版日期：2013-09-15
机构：中国水电顾问集团成都勘测设计研究院;
年：2013
期：09
出版单位：中国西部科技

摘要

采用Morgenstern-Price极限平衡理论对某水电站的泥石流沟边坡在各工况下的稳定性进行了分析。结果表明,Morgenstern-Price法能很好地描述泥石流沟边坡在治理前后的滑移形态与安全系数;原始边坡安全系数较小,可以通过增加拦水坝后压重的方式保证边坡的稳定;渗流对边坡的稳定影响较大,需采取措施尽量降低坝后浸润线的高度。可供类似工程借鉴。
Based on the limit equilibrium method of Morgenstern-Price,the slope stability of debris flow gully in a power station was analyzed under the main conditions.It showed that the slide shape and the safety factor could be described well by the method of Morgenstern-Price.The safety of the original slope was poor,and the stability of the slope could be ensured by increasing the weight pressured on the back of the dam.In addition,the influence of the seepage on the slope was obvious.The height of the saturation line should be minimized.The results can be used as references for similar projects.

引文

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