新城金矿深部资源扩采对地表铁路的影响研究  

Research on Influence of Deep Resource Expansion of Xincheng Gold Mine on Surface Railway

作　　者：刘滨 LIU Bin(Xincheng Gold Mine of Shandong Gold Mining Co.,Ltd.)

机构地区：[1]山东黄金矿业股份有限公司新城金矿,山东省莱州市261400

出　　处：《现代矿业》2022年第6期252-254,258,共4页Modern Mining

摘　　要：新城金矿深部扩建工程上部地表有大莱龙铁路通过,为最大限度地开采矿产资源及确保铁路的正常运营,开采前需进行深入的论证评估。首先根据新城金矿采选扩建范围实际地质情况建立了矿体与地表铁路的三维空间关系模型,在此基础上采用FLAC^(3D)计算了回采后地表移动变形值。结果表明,地下矿体采后充填,围岩开挖损伤区只分布在采空区周边,开挖扰动区不能延伸至地表。确定新城金矿采选扩建工程范围内的采矿活动不会影响到地表铁路的安全运营。The Dalailong Railway passes through the upper surface of the deep expansion project of Xincheng Gold Mine.In order to maximize the exploitation of mineral resources and ensure the normal operation of the railway,in-depth demonstration and evaluation are required before mining.Firstly,a three-dimensional spatial relationship model between the ore body and the surface railway was established according to the actual geological conditions of the Xincheng Gold Mine's mining and expansion area.On this basis,the FLAC^(3D)software was used to calculate the surface movement and deformation value after mining.The results show that the underground ore body is filled after mining,the surrounding rock excavation damage area is only distributed around the goaf,and the excavation disturbance area cannot extend to the surface.It is determined that the mining activities within the scope of the Xincheng Gold Mine Mining and Processing Expansion Project will not affect the safe operation of the surface railway.

关 键 词：深部采矿 地表变形 FLAC^(3D) 

分 类 号：U298[交通运输工程—交通运输规划与管理] TD85[交通运输工程—道路与铁道工程]