陡倾地层大型硐室群岩体质量评价分析  

Evaluation and analysis of rock mass quality of large chamber group in steep dip strata

作　　者：余天成 原野 YU Tiancheng;YUAN Ye(Yihang Chihong Mining Co.,Ltd.,Zhaotong 657600,China;BGRIMM Technology Group,Beijing 102628,China;Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]彝良驰宏矿业有限公司,云南昭通657600 [2]矿冶科技集团有限公司,北京102628 [3]昆明理工大学,云南昆明650093

出　　处：《中国矿业》2023年第S01期121-125,138,共6页China Mining Magazine

基　　金：国家重点研发计划课题资助(编号:2022YFC2904102)。

摘　　要：滇东北地区毛坪铅锌矿盲竖井硐室群主要位于泥盆系及石炭系地层中,该硐室群顶板及帮部产生垮塌、解体及大变形破坏。为治理该硐室群破坏问题,综合分析地质资料及以往支护方式的基础上,在裸露硐室区域采用RQD指标基本分析法、南非RMR分级法及GSI法对岩体进行评价,结合硐室实际工况,采用ROC lab软件计算不同地层的岩体力学参数,为后期治理方案提供理论基础。The blind shaft chamber group of Maoping lead-zinc mine in northeast Yunnan is mainly located in devonian and carboniferous strata.The roof and side of the chamber group collapse,disintegration and large deformation failure occur.In order to control the failure problem of the chamber group,on the basis of comprehensive analysis of geological data and previous support methods,the rock mass is evaluated in the exposed chamber area by using RQD index basic analysis method,South Africa RMR classification method and GSI.Combined with the actual conditions of the chamber,the rock mass mechanical parameters of different strata are calculated by using ROC lab software,which provides a theoretical basis for the later treatment scheme.

关 键 词：大硐室群 岩体力学评价 工程岩体 稳定性评价 

分 类 号：TD353[矿业工程—矿井建设]