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Engineering characteristic of weak seam and affection of it to slope stability of left dam abutment of a hydroelectric station
Author(s): 
Pages: 70-73
Year: Issue:  1
Journal: HYDROGEOLOGY & ENGINEERING GEOLOGY

Keyword:  边坡软弱夹层滑动面稳定性;
Abstract: 西南某大型水电站左岸坝肩边坡分布有多层二叠系凝灰岩软弱夹层,其中对该边坡稳定性影响最大的是标记为A3的软弱夹层.本文从A3的空间展布、成因、工程分类、物质组成、物理性质、力学性质等因素进行分析,认为A3可能构成该边坡的潜在的滑动面,对该边坡的稳定性影响很大.从影响边坡稳定的因素和边坡的整体稳定性计算两个方面分析后,得出虽然A3构成该边坡潜在的滑动面,但边坡整体是稳定的.
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