白象硅灰石矿房柱采矿法安全性研究  

Safety Study of Room and Pillar Mining Method in Baixiang Wollastonite Mine

作　　者：喻六平 惠清龙 和学衡 YU Liuping;HUI Qinglong;HE Xueheng(Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.;State Key Laboratory of Safety and Health for Metal Mines;Huawei National Engineering Research Center for Efficient Recycling of Me-tallic Mineral Resources Co.,Ltd.;Zhejiang Changxing County Baixiang Wollastonite Mine Co.,Ltd.)

机构地区：[1]中钢集团马鞍山矿山研究总院股份有限公司 [2]金属矿山安全与健康国家重点实验室 [3]华唯金属矿山资源高效循环利用国家工程研究中心有限公司 [4]浙江省长兴县白象硅灰石矿有限公司

出　　处：《现代矿业》2024年第9期101-106,共6页Modern Mining

摘　　要：为了探究白象硅灰石矿房柱采矿法回采矿权采深范围内矿体的可行性,开展了矿体回采矿岩体稳定性研究。在现行房柱采矿法采场结构参数条件下,首先采用理论分析,通过计算矿柱强度及矿柱随采深所受到的应力,进而确定矿体合理回采深度;然后利用FLAC^(3D)数值模拟软件,从位移、应力、塑性区3个方面对矿权范围内矿体回采完成后矿岩体稳定性进行分析。对比理论、数值模拟分析结果,选取最优值,最终确定了矿体的最大安全开采深度为-153 m,并提出了安全保障措施,为矿山安全开采提供理论依据。In order to explore the feasibility of the room and pillar mining method used in Baixiang Wollastonite Mine to recover the ore body within the mining depth of the mining rights,the rock stability of the ore body is studied.Under the condition of current stope structure parameters of the room and pillar min-ing method,the reasonable mining depth of the ore body is determined by theoretical analysis and calcula-tion of pillar strength and stress with mining depth.Then,FLAC^(3D) numerical simulation software is used to analyze the stability of ore rock mass after mining from three aspects of displacement,stress and plastic zone.By comparing the results of theoretical and numerical simulation analysis,the optimal value is select-ed,and the maximum safe mining depth of the ore body is finally determined to be-153 m,and the safety safeguard measures are put forward to provide a theoretical basis for the safe mining of the mine.

关 键 词：硅灰石矿 房柱采矿法 稳定性 数值模拟 安全开采深度 

分 类 号：TD87[矿业工程—非金属矿开采]