摘要
为了分析围岩分级方法在地下采矿巷道中的适用性,本文结合大冶铁矿地下采矿工程实际,应用RMR法、Q指标法及国标法对地下采矿巷道围岩进行了分级,以此判定围岩的稳定性;同时对比分析了不同围岩分级方法的分级结果,结果表明Q指标法及国标法得出的结果更接近于工程实际,且更适合采矿巷道围岩的分级,而RMR法对采矿巷道围岩的分级偏于保守。该研究可为类似工程围岩稳定性分析提供依据。
In order to figure out the best surrounding rock classification method in underground mining tunnel,this paper uses three different methods to solve this problem based on Daye Iron Mine.Then it compares the results figured out from RMR,Q system and national standard methods and determines which surrounding rock classification method is fit for underground mining tunnel.The research shows that Q system and national standard methods are better for underground mining tunnel while RMR is not suitable.
出处
《安全与环境工程》
CAS
2011年第6期101-104,共4页
Safety and Environmental Engineering
关键词
围岩稳定性分级
RMR法
Q指标法
国标法
地下采矿巷道
stability classification of surrounding rock
RMR method
Q system method
national standard method
underground mining tunnel
