某露天煤矿边坡稳定性分析  

Slope Stability Analysis of an Opencut Coal Mine

作　　者：郝全明[1] 杨振增[1] 武利平[2] 

机构地区：[1]内蒙古科技大学矿业研究院,内蒙古包头014010 [2]内蒙古科技大学国际学院,内蒙古包头014010

出　　处：《煤炭技术》2015年第1期237-239,共3页Coal Technology

摘　　要：经预测某露天矿最终帮坡角每提高1°,可多出煤60-70万t经济效益十分明显。因此对该露天矿顶帮边坡是否稳定、能否使生产计划安全顺利地进行这一问题进行分析显得尤为重要。通过对露天矿顶帮边坡的分析并应用ANSYS建立有限元模型求出边坡最终边坡角,再利用强度折减法及GEOSLOPE求出最终边坡角的安全系数,最后利用极限平衡软件对安全系数进行验证。It is predicted that the final pit slope angle of an opencut coal mine for every increase of 1 degree,can produce more 600 to 700 thousand tons of economic benefit obviously. Thus,the issues that the stability of pit top slope and the safety of production smoothly are particularly significant. This study is based on the analysis of opencut mine slope,through application of ANSYS to establish model to obtain slope ultimate slope angle. Again by using the strength reduction method and GEOSLOPE to calculate the safety factor of slope angle,finally,the safety of coefficient is verified by using limit equilibrium system.

关 键 词：边坡角 顶帮 有限元 安全系数 

分 类 号：TD824.7[矿业工程—煤矿开采]