期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：242
期号：2
页码：1-8
DOI：10.1088/1755-1315/242/2/022055
出版社：IOP Publishing
摘要：According to the requirements of ore mining, this paper comprehensively evaluates the quality of rock mass below 915m in a gold mine in northwest Jiaodong by rock mass engineering geological survey and comprehensive quality evaluation. The results show that the rock mass near the ore body or the F1 fault area is gradually deteriorated, and the rock mass of the ore body or the F1 fault is still poor. The RMR index of the rock mass is in the range of 35~50, mostly the grade III poor rock mass.
