开采扰动后边坡稳定性评价与治理方案  

Slope Stability Evaluation and Treatment Scheme After Mining Disturbance

作　　者：宋志飞[1] 王群[1] 孙彬彬 田波[1] 董彦飞[1] 

机构地区：[1]北方工业大学建筑工程学院,北京100144 [2]山东省费县水利局,山东临沂273400

出　　处：《煤矿安全》2015年第6期216-219,共4页Safety in Coal Mines

基　　金：青年拔尖人才基金资助项目(CIT&201404006);国家自然基金资助项目(41202214);北京市科技新星计划资助项目(Z121106002512008)

摘　　要：开采扰动下的边坡稳定性问题一直是岩土工程中的一个重要研究内容,以某矿Ⅳ-Ⅳ剖面为研究对象,在极限平衡理论的基础上,借助GEO-SLOPE软件,对开采扰动后的边坡现状稳定性进行计算分析,结果表明边坡目前处于不稳定状态。为了提高边坡稳定性,对上部采取局部削坡减载的治理方案,并采用极限平衡方法,分别考虑岩体折减和松散体2种情况进行稳定性分析。分析结果表明,2种情况下的边坡均处于稳定状态,从而达到治理的目的。The slope stability after mining disturbance is an important research content in geotechnical engineering. Taking Ⅳ-Ⅳ profile of a mine as research object and based on limit equilibrium theory,the present slope stability is calculated after mining disturbance by GEO-SLOPE. The result shows that the present slope is not in stable position. We propose the program of cutting local slope and reducing load slope to improve slope stability. Under the condition of rock mass reduction and loose rock,the new slope is calculated respectively. The result shows that the slope is in stable position under two conditions so as to achieve the purpose of control.

关 键 词：开采扰动 稳定性 滑移面 极限平衡 减载方案 

分 类 号：TD854.6[矿业工程—金属矿开采]