Traditional RMR rock mass quality classfication do not consider the effect of in‐situ stress . The IRMR rock mass quality classfication which have considered the effect of in‐situ stress and made the correction had been applied in the three middle's roadways and stopes of - 510m 、 - 555m 、 - 600m in Sanshan island gold mine .Compared with the results of RMR rock mass quality classfication ,we can find that most results of IRMR rock mass quality classfication are worse than former ,but the rock mass quality of - 510 travelling roadway ,553 # stope and 601 # stope are at the same level in two evaluation system .So , it is more safe in tackling high in‐situ stress rock mass engineering using IRMR rock mass quality classfication ,and it more resonable and effective .We had used the IRMR grade to determine the rock mechnical parameters in all the three middle ,it can provide a basic evidence for numerical simulation study on optimization of the structural parameters of the deep stope and engineering disaster prevention and control ,and so on .% 传统的 RMR 岩体质量分类法未考虑地应力的影响。将考虑地应力损伤并进行修正的IRMR 岩体质量分类法应用于三山岛金矿－510m 、－555m 、－600m 三中段各巷道和采场岩体中，并与RMR 分类结果进行对比，其中－510运输巷、553＃和601＃采场评价结果与 RMR 分类法一致，其余均差一级，表明进行地应力修正的 IRMR 评价结果在工程上是偏于安全的，评价结果更为合理有效。用所得IRMR 评分值确定各中段岩体的力学参数，为深部岩体工程稳定性分析与采场结构参数的优化等数值模拟研究提供了基础依据。
展开▼
