摘要
根据岩土物理力学性质指标,分别对某矿排土场设计边坡沿排土场内部滑动、沿排土场基底滑动、沿排土场基底内部弱层滑动3种情况下内排土场的稳定性进行分析。对不稳定情况采用预留安全煤壁手段对内排土场进行加固,分别对比了不同煤壁宽度对内排土场边坡稳定性的提高效果,最终确定了预留25 m支挡煤壁方案。最后对排土过程中应注意的事项给出了相关的建议和意见。
According to the physical and mechanical properties of rock and soil,the stability of the designed slope of the dump is analyzed respectively under three conditions:sliding along the interior of the dump,sliding along the basement and sliding along the weak layer inside the basement.In the unstable situation,the method of reserving safe coal wall was adopted to reinforce the internal dump.The improvement effect of different coal wall widths on the slope stability of the internal dump was compared,and the plan of reserving 25 m coal wall was finally determined.Finally,some suggestions and opinions are given for the matters needing attention in the process of soil drainage.
作者
鲁宁
韩猛
于玲
陈亚飞
马诗文
LU Ning;HAN Meng;YU Ling;CHEN Yafei;MA Shiwen(China Coal Technology and Engineering Group Shenyang Research Institute,Fushun113122,China;State Key Laboratory ofCoal Mine Safety Technology,Fushun113122,China)
出处
《煤矿安全》
CAS
北大核心
2019年第9期236-239,共4页
Safety in Coal Mines
基金
国家重点研发计划资助项目(2017YFC1503100)
中国煤炭科工集团有限公司科技创新创业资金专项资助项目(2018-2-MS023)
关键词
露天矿
排土场
滑坡
边坡稳定性
煤壁支挡
open pit mine
dump
land slide
slope stability
coal wall support
作者简介
鲁宁(1987—),辽宁阜新人,助理工程师,硕士,2015年毕业于中国地质大学(北京),从事边坡灾害研究工作。
