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摘要
In order to analyze the impacts of rock damage and underground seepage on slope stability, this paper derived anti-sliding stability coefficient formulas under situations such as rock damage, rock drag force at underground water seepage or piping at fissure seepage based on the limit equilibrium method. Through relevant physical and mechanical tests on the slope at K117+900~K118+020 of Huaitong Expressway, calculation for the stability safety coefficient of rock slope under different conditions was conducted. The results show that the slope stability gets worse under bigger damage to the rock;the deeper the seeper in the slope fissure, the worse the slope stability would be;when calculating the rock slope stability coefficient, the drag force to the fissure wall from fissure seepage can be ignored;with deeper seeper or continuous storm rainfall, there would be piping in the fissure, and the stability coefficient value is about 9% less than that without consideration of piping.
- 出版日期2013-7
- 单位中南大学
