三道庄矿露天和地下岩体工程灾害监测预警应用  

Application of open-pit and underground rock mass engineering disaster monitoring and early warning in Sandaozhuang Mine

作　　者：何亚清 杜红波 彭府华[2,3] HE Yaqing DU Hongbo PENG Fuhua(China Molybdenum Group Co. , Ltd. , Luoyang Henan 471500, China Changsha Institute of Mining Research Co. , Ltd. , Changsha 410012, China National Engineering Research Center for Metal Mining, Changsha 410012, China)

机构地区：[1]洛阳栾川钼业集团股份有限公司,河南洛阳471500 [2]长沙矿山研究院有限责任公司,长沙410012 [3]国家金属采矿工程技术研究中心,长沙410012

出　　处：《有色金属（矿山部分）》2017年第4期81-85,共5页NONFERROUS METALS(Mining Section）

摘　　要：三道庄矿为典型的地下转露天开采矿山,经过前期几十年的地下无序开采,目前在露天台阶下方形成了大量极复杂地下采空区。针对采空区分布特征,建立了一套地下和露天联合监测的48通道微震监测系统。通过长期现场监测,确定了微震事件率、微震定位事件空间聚集度、微震b值、微震分形维值、能量指数—累计视体积和微震事件时间熵的六个微震预警参数及"三个数值四个趋势"的预警阀值。同时,对矿山典型的岩体工程灾害进行了监测预警分析,证明了该预警方法具有较强的适用性。建立的微震监测系统多次对地表台阶开裂、塌陷和井下冒顶片帮等进行了监测预警,为矿山的安全生产提供了重要的技术保障。Underground mining method was used early and open-pit mining method is used now in Sandaozhuang Mine.The Sandaozhuang mine is a typical mine,which is changed from underground mining into open-pit mining.After decades of disordered mining,a large number of complex mined-out areas are formed under the openpit benches.A multi-channel microseismic monitoring systemis established to monitor the stability of gobs.The microseismic event rate,aggregation degree of localised microseismic events,the bvalue,the fractal dimension value,the EI-VA value and the time entropyare used to be the parameters of disaster early warning,and the early warning values are confirmed.Meanwhile,through practical application of rock mass engineering disaster,the early warning method has strong applicability.Several crackings and collapses of surface and underground roof cavingare successfully early warned,whichcan ensure the safety production,and provided important technical support to the production safety at Sandaozhuang Mine.

关 键 词：地下转露天开采 采空区 微震监测技术 监测预警 

分 类 号：TD76[矿业工程—矿井通风与安全]