黑龙江某铜矿露天转地下涌水量估算及防排水措施  

Water Inflow Estimation and Prevention and Drainage Measures from Open-pit to Underground Mining of a Copper Mine in Heilongjiang Province

作　　者：林克辉 LIN Kehui(Zijin(Xiamen)Engineering Design Co.,Ltd.)

机构地区：[1]紫金(厦门)工程设计有限公司

出　　处：《现代矿业》2022年第11期259-262,共4页Modern Mining

摘　　要：对于露天转地下开采矿山,浅部露采坑成为降雨汇水聚集区,深部矿体崩落法开采形成的冒落带或导水裂隙带为地表水进入井巷系统建立了良好通道。深部矿体充水条件发生改变,地表水成为矿坑涌水的主要来源。以黑龙江某铜矿为例,以分区估算降雨径流渗入量叠加地下涌水量的方式获得合理的矿坑涌水量数据,为井下排水系统布置提供了依据。并提出了在露采坑内人为设置岩石垫层从而预先形成渗流通道等措施,以防露采坑底的汇水突然灌入井下威胁人员设备安全。For the open-pit to underground mining,the shallow open pit becomes a rainwater catch⁃ment area,and the caving zone or water-conducting fracture zone formed by the deep ore body caving meth⁃od has established a good channel for surface water to enter the tunnel system,and the deep ore body water filling conditions have changed,which makes surface water to become the main source of water inflow.Tak⁃ing a certain copper mine in Heilongjiang Province as an example,the reasonable pit water inflow data is obtained by estimating the rainfall runoff infiltration amount and superimposing the underground water in⁃flow amount,so as to provide the basis for the layout of the underground drainage system.Seepage channels and rock cushion are adopted to prevent the catchment at the bottom of the open pit from suddenly pouring into the tunnels and threatening the safety of personnel and equipment.

关 键 词：露天转地下 矿坑涌水 降雨径流渗入量 岩石垫层 渗流通道 

分 类 号：TD742[矿业工程—矿井通风与安全]