某矿岩石力学特性及力学参数相关性研究

Study on rock mechanical properties and the correlation of the mechanical parameters of a mine

通过对矿区代表性岩样进行物理力学性质试验研究,得到岩石的基本物理参数和弹性模量、泊松比、抗压强度及抗剪强度等主要力学参数。分析含水率对岩石单轴抗压强度的影响,围压对岩石三轴抗压强度、弹性模量的影响,并对岩石抗压强度和弹性模量的相关关系进行回归分析,得到了二者的最佳相关关系式。试验结果,可为矿山数值分析、深部采场结构参数优化等提供基础数据;拟合得到的岩石抗压强度、弹性模量关系式,可在基础数据缺乏时提供参考。

By the experimental study on the physical and mechanical properties of typical rock in the mine,the base physical parameter and main mechanical parameters such as elasticity modulus,poisson’s ratio,compressive strength and shear strength parameters is put forward in this paper.Research analyzes the uniaxial compressive strength influenced by moisture content,the triaxial compressive strength and the elasticity modulus influenced by confining stress.Moreover the optimal correlativity of the compressive and elasticity modulus is obtained through analyzing the curve fitting.The research results can provide basic data for the study on mining numerical analysis,the stope structure optimization,also the correlativity of the compressive and elasticity modulus can provide reference when there isn’t enough data.