虎爪山矿段深部矿床岩体特征及稳定性分析  

Rockmass Characteristics and Stability Analysis of Deep Deposit in Huzhuashan Ore Block

作　　者：杨佳楠 刘国盛 YANG Jia'nan;LIU Guosheng(Oroqen Autonomous Banner Guojin Mining Co.,Ltd.;Nanjing Yinmao Lead Zinc Silver Mining Co.,Ltd.)

机构地区：[1]鄂伦春自治旗国金矿业有限公司,内蒙古自治区呼伦贝尔市021000 [2]南京银茂铅锌矿业有限公司

出　　处：《现代矿业》2022年第12期145-148,共4页Modern Mining

摘　　要：针对虎爪山矿段中段埋深大、围岩结构复杂、稳定性差、巷道极易发生较大变形的情况,基于对围岩地质特征的分析及评价,为地下开采及围岩控制提出指导。主要结论如下:①虎爪山矿段矿石类型主要以铅锌硫型为主,矿体上盘围岩主要为高丽山组砂页岩和黄龙组灰岩,矿体下盘全部为黄龙组灰岩;②虎爪山矿段矿体上盘围岩稳固,矿体下盘围岩稳固性较好,矿区工程地质属中等类型;③矿体上盘围岩抗压强度为13.1~177 MPa,但当遇到结构破碎、岩性较差、强度较低的岩石时,顶板围岩可能失稳;④矿段上盘布置运输巷需要考虑深部高地应力情况,并对巷道顶板制订相应的支护措施。In view of the large buried depth,complex surrounding rock structure,poor stability and large deformation of roadway in the middle section of Huzhuashan Mine,based on the analysis and evalua⁃tion of the geological characteristics of surrounding rock,it provides guidance for underground mining and surrounding rock control.The main conclusions are as follows:①The ore type of Huzhaoshan ore block is mainly lead-zinc-sulfur type.The surrounding rock of the upper wall of the ore body is mainly Gaolishan Formation sand shale and Huanglong Formation limestone,and the lower wall of the ore body is all Huan⁃glong Formation limestone.②Huzhuashan ore body hanging wall rock stability,ore body footwall rock sta⁃bility is good,mining engineering geology is medium type.③The compressive strength of the hanging wall rock is 13.1~177 MPa,but the roof rock may be unstable when the structure is broken,the lithology is poor and the strength is low.④The arrangement of the transport roadway in the hanging wall of the mine section needs to consider the deep high ground stress situation,and formulate the corresponding support measures for the roadway roof.

关 键 词：深部开采 工程地质条件 地压 

分 类 号：TD32[矿业工程—矿井建设]