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Design for Reasonable Slope Angle in the Large Surface Mine and the Stability Analysis
Author(s): 
Pages: 1-5
Year: Issue:  12
Journal: Geotechnical Investigation & Surveying

Keyword:  边坡 露天矿 极限平衡法 数值分析 安全系数;
Abstract: 为了对某露天矿进行相应的台阶边坡角设计和边坡稳定性分析。首先,利用简化Bishop法进行极限平衡法分析,结果表明:台阶开挖角为65°的情况下,安全系数为1.484,边坡稳定性和经济性达到较好组合。然后,利用FLAC3D,计算边坡在台阶开挖角65°情况下的安全系数和破坏模式,结果表明:开挖完毕后,边坡处于稳定状态,其潜在滑坡为局部破坏,安全系数为1.58,与极限平衡法得到的结果相差不大(相对误差6.47%),而极限平衡法计算偏于安全。
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