金陶矿业公司岩体工程地质特征及RMR岩体质量评价

Engineering geological characteristics of rock mass and quality evaluation of RMR rock mass in Jintao mining company

针对金陶矿业公司主要岩组进行工程地质调查研究,采用RMR法分别从岩石RQD值、单轴抗压强度、节理间距、节理状态、地下水状态及节理产状与巷道轴线的关系等方面进行岩体质量评价与分级。研究结果表明:调查区域内矿体下盘普遍比上盘岩体稳定,岩体的变形与破坏主要受优势结构面控制,对岩体质量稳定易造成较大影响,采矿工程施工时应加强支护。

Based on the engineering geological survey of the main rock groups of Jintao mining company,the RMR method is used to evaluate and classify the rock mass quality from the aspects of rock RQD value,uniaxial compressive strength,joint spacing,joint state,groundwater state and the relationship between joint occurrence and roadway axis.The research results show that the lower wall of the ore body in the survey area is generally more stable than the upper wall rock mass,and the deformation and failure of the rock mass are mainly controlled by the dominant structural plane,easily imposing a great impact on the quality and stability of the rock mass,so the support should be reinforced in the construction of mining engineering.