矿体充填法上行开采过程岩层运移规律研究  

Study on the Rules of Strata Movement in the Upward Mining Process of Mine Backfilling Method

作　　者：林建章 LIN Jianzhang(Dexing Copper Mine,Jiangxi Copper Corporation,Dexing Jiangxi 334224)

机构地区：[1]江西铜业股份有限公司德兴铜矿,江西德兴334224

出　　处：《中国科技纵横》2024年第16期134-136,共3页China Science & Technology Overview

摘　　要：本文针对矿体充填法上行开采过程岩层移动和地表塌陷规律展开研究,运用了FLAC3D三维数值计算方法模拟分析矿体充填法上行开采的应力应变情况。研究结果表明,充填开采能有效抑制岩层移动和地表塌陷,使地表沉降范围集中在矿体顶部且沉降中心随上行开采过程中向矿体中心移动,最终沉降以筒型陷落为主。The laws of strata movement and surface collapse during upward backfill mining were studied,and the stress and strain conditions of upward mining with ore filling method were simulated and analyzed using FLAC3D three-dimensional numerical calculation method.The results show that backfilling mining can effectively restrain strata movement and surface subsidence,and the subsidence range of the surface is concentrated at the top of the ore body.The subsidence center moves towards the center of the ore body during the upward mining process,and ultimately subsides mainly in a cylindrical shape.

关 键 词：充填采矿 上行开采 岩层运移 数值模拟 筒型陷落 

分 类 号：TD325[矿业工程—矿井建设]