摘要
矿山采空区地面塌陷灾害是影响矿山正常生产的主要因素,本文利用D-InSAR技术对金属矿山进行了形变监测分析,认为矿区东侧地面沉降的可能性较大,其最大沉降面积可达2.4km^(2),沉降区域与深部采空区高度吻合;同时地表塌陷沉降量从中心向两侧逐渐减小,且呈对称关系;与全站仪获得的累计沉降量相比,二者误差均小于5%,说明本次预测是有效地;最后提出“支护+回填”的方式可以有效地防止地面塌陷问题。
The ground collapse disaster in mine mining area is the main factor affecting the normal production of mine,this paper uses D-InSAR technology to carry out deformation monitoring and analysis of metal mine,and thinks that the possibility of ground subsidence on the east side of the mining area is greater,the maximum settlement area can reach 2.4km^(2),and the settlement area is highly consistent with the deep mining area.At the same time,the amount of subsidence of surface collapse decreases gradually from the center to both sides,and is symmetrical.Compared with the cumulative settlement obtained by the whole station instrument,the error of both is less than 5%,which indicates that the prediction is effective.Finally,the method of"supporting and backfilling"can effectively prevent the ground from collapsing.
作者
钟星海
王凯宾
温军军
杜文磊
ZHONG Xing-hai;WANG Kai-bin;WEN Jun-jun;DU Wen-lei(Hunan Institute of geological hazard investigation and monitoring,Changsha 410000,China)
出处
《世界有色金属》
2021年第22期112-113,共2页
World Nonferrous Metals
关键词
采空区
地面塌陷
防治方案
emptying area
ground collapses
Prevention and control programmes
