摘要
由于地下采矿活动将改变围岩物理环境的天然力场,使围岩产生位移和变形。为有效控制由于采矿活动形成的围岩位移,分析可能受到开采影响区域的矿体和围岩的力学性质、岩体地质构造、周边应力状况以及地下水文状况,以某铜矿为例,分别选用上向水平分层胶结充填法、浅孔留矿嗣后充填法对地下采矿工程进行数值模拟分析,研究矿山开采对地表矿渣遗址稳定性的影响。研究表明:采用上向水平分层胶结充填法开采后,矿体围岩稳定性较好,有利于确保矿区地表建构(筑)物稳定。
Due to the underground mining activities can change the natural gas field of the surrounding rock physical environment,surrounding rock produces displacement and deformation,in order to control the displacement of surrounding rock produced by mining activities,analyze the mechanical properties of the orebodies and surrounding rock,geological structure of rock mass,peripheral stress conditions and underground hydrological conditions of the orebodies and surrounding rock in the area that may be affected by mining activities,taking a copper mine as an example,the upward horizontal stratified cemented filling method and shallow hole shrinkage backfilling method are adopted to conduct the numerical simulation analysis of underground mining engineering of the mine,so as to study the influence of mining activities to the stability of surface ancient bronze mine site.The study results show that the stability of surrounding rock by using upward horizontal stratified cemented filling method is better than the one by using shallow hole shrinkage backfilling method,which is help for ensuring the safety of surface buildings in the mining area.
作者
何承尧
范庆
霍洪岩
范进才
He Chengyao;Fan Qing;Huo Hongyan;Fan Jingcai(Zhejiang Litie Group Co.,Ltd.;Sinosteel Maanshan Institute of Mining Research Co.,Ltd;State Key Laboratory of Safety and Health for Metal Mines;Huawei National Engineering Research Center of High Efficient Cyclic and Utilization of Metallic Mineral Resources Co.,Ltd;Tianjin Mining Engineering Co.,Ltd;Hainan Shanjin Mining Co.,Ltd)
出处
《现代矿业》
CAS
2018年第11期76-79,83,共5页
Modern Mining
关键词
地下开采
上向水平分层胶结充填法
浅孔留矿嗣后充填法
数值模拟
Underground mining
Upward horizontal stratified cemented filling method
Shallow hole shrinkage backfilling method
Numerical simulation
作者简介
何承尧(1964—),男,工程师,312041浙江省绍兴市。
