黑山铁矿露天采场边坡稳定性研究与治理实践  

Stability and Control Measures of Open-pit Slope in Heishan Iron Mine

作　　者：王金龙[1] 王洪秋[1] 范利超[1] 曹玉虎[1] 宋秀波[1] 

机构地区：[1]河北钢铁集团矿业有限公司承德黑山铁矿

出　　处：《金属矿山》2012年第5期53-55,59,共4页Metal Mine

摘　　要：黑山露天采场西边坡由于断层节理发育,造成大面积滑坡,给采场安全生产造成极大威胁。采取现场编录和工程钻等手段,详细摸清了西边坡岩体断层节理情况。通过对边坡进行稳定性分析研究,制定出具体治理方案。采用地表截洪沟阻水、770 m水平预留宽台阶并在宽台阶外缘砌筑干砌石挡墙、对宽台阶实施喷锚支护加固等措施,消除了770 m水平以上边坡对下部各台阶生产作业的威胁,保证了露天采场深部的安全生产。Because of the rich fault and joint in the open-pit west stope slope in Heishan iron mine, large area landslip occurred, and it threatens the safety production. The in-site recorded and described and engineering drill measures were adopted, the properties of fault and joint in the open-pit west stope slope was obtained. The stability of the slope was analyzed, and the countermeasures were proposed. Some countermeasures have conducted, such as, the flood intercepting trench, the reserved broad stairs in 770 m level and shotcrete and rock bolt support strengthen in the broad stairs. It eliminates the threat of safety production with 770 m level upper slope to the lower slope. It grantees safety production in the deep open-pit mine.

关 键 词：宽台阶 干砌石挡墙 喷锚支护 

分 类 号：TD854[矿业工程—金属矿开采]