摘要
针对白音华1号露天煤矿采场北帮复合顺倾边坡的工程实际,基于刚体极限平衡分析手段,应用FLAC^(3D)软件对边坡的应力应变和位移变化进行了数值模拟分析。研究了露天矿土岩复合顺倾边坡的滑坡模式和稳定性,计算出最终工作平盘宽度从而确定最终边坡形态,确保采场北帮煤炭资源开采的安全。研究结果表明:白音华1号露天矿采场北帮复合顺倾边坡的滑坡模式为组合滑动;通过边坡稳定性分析确定边坡抗滑稳定安全系数,使采场北帮复合顺倾边坡满足安全要求的边坡角为13°。保证安全生产的前提下,寻求经济收益最大化。
According to the actual engineering situation of the north composite consequent slope of Baiyinhua No.1 openpit coal mine,based on rigid body limit equilibrium analysis method,the FLAC-（3D）software is adopted to conducted the numerical simulation analysis of stress-strain and displacement changes.The slide model and stability of composite consequent slope of open-pit mine are studied,and the final working berm width is calculated and the final slope shape is determined to ensure the safety of coal exploitation in the north slope. The study results show that the slide model in the north composite consequence slope of Baiyinhua No.1 open-pit mine is combination sliding,the slope anti-sliding stability safety coefficient is determined by conducting slope stability analysis,the slope safety angle is identified as 13 o to make the north composite consequence slope to meet the safety requirements of slope.The maximum economic benefits can be obtained under the conditions of safety production.
出处
《金属矿山》
CAS
北大核心
2017年第8期170-174,共5页
Metal Mine
关键词
边坡稳定性
复合边坡
数值模拟
Slope stability
Composite slope
Numerical simulation
