摘要
由于安家岭矿是露天和井工协调开采开采模式,安家岭露天矿北帮边坡在井工二矿形成了井工采动与断层破碎带双重影响,对露天矿安全有序生产带来威胁,随着井工二矿29211工作面的推进,安家岭露天矿北帮出现变形,通过采用Morgenstern-price法对断层影响区域内边坡进行稳定性评价,当工作面推进至设计停采线时,边坡安全储备系数不足,存在地质灾害危险,结合边坡稳定雷达与GPS监测数据分析,调整井工二矿29211工作面原设计停采线位置,以保证露天矿安全开采。
Anjialing Openpit Mine gradually formed a unique openunderground combined mining mode. The north slope of Anjialing Openpit formed double effect of underground mining and fault fracture zone in 2# Mine, which took threat for open pit safe and orderly production. With the advancing of 29211 working face in 2# Mine, the north slope Anjialing Opepit appears deformation, Morgensternprice method is adopted for slope stability evaluation. When working face advance to design stop mining line, slope safety coefficient is insufficient, existing risk of geological disasters, in combination with the slope stability of radar and GPS monitoring data analysis, the 29211 working face in 2# Mine regulates the original design of stop line position, which ensures the safety in open pit mining.
出处
《煤矿安全》
CAS
北大核心
2014年第7期212-215,共4页
Safety in Coal Mines
基金
国家自然科学基金面上项目(51274122)
国家自然科学基金煤炭联合基金资助项目(U1361211)
关键词
露井协采
边坡雷达
陷落柱
边坡稳定性
露天矿
openunderground combined mining
slope radar
collapse column
slope stability
openpit mine
