安太堡露天矿南排土场滑坡事故分析  

Analysis of landslide accident in south dump of Antaibao Open-pit Mine

作　　者：张永华 张东华[2] 郑哲 ZHANG Yonghua;ZHANG Donghua;ZHENG Zhe(Antaibao Open-pit Mine,China Coal Pingshuo Group Co.,Ltd.,Shuozhou 036006,China;Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]中煤平朔集团公司安太堡露天矿,山西朔州036006 [2]太原理工大学,山西太原030024

出　　处：《露天采矿技术》2020年第3期88-91,共4页Opencast Mining Technology

摘　　要：为了对安太堡露天矿黄土排土场的滑坡进行治理,对1991年安太堡南排土场滑坡事故进行了调查研究。对地质条件进行了调查,包括气候、水文、地层、基底倾角等,对滑坡体特征进行了描述,用Phase软件对南排土场进行地质建模,分析了地下水位、裂隙贯通、排土场最高度、排土场基底倾角对稳定性系数的敏感性。分析得出地下水位上升是滑坡事故的最主要外因,排放强度过大不是主因,排土场的最危险裂隙位置位于排土场坡底线位置,为重塑黄土排土场的稳定性治理及滑坡预防提供重要的参考。In order to deal with the landslide accident on the loess dump site,we investigate the landslide accident on the south dump in 1991,and investigate the geological conditions,including climate,hydrology,stratum,base dip,etc.,and describe the characteristics of the landslide body.We use Phase software to carry out geological modeling of south dump,and analyze the sensitivity of the groundwater level,crack penetration,the highest height of the dump and the slope angle of the dump to the stability coefficient.It is concluded that the rise of groundwater level is the main external cause of landslide accidents.Dumping intensity is not the main cause.The most dangerous cracks position of the dump is at the bottom line of the dump,which will provide important reference for the stability management and landslide prevention of the reshaped loess dump area.

关 键 词：排土场 滑坡事故 地下水位 排放强度 裂隙 

分 类 号：TD824.7[矿业工程—煤矿开采]