非对称岩体削弱工程对矿体崩落影响的研究

Influence of Block Asymmetric Boundary Weakening on the Caving Process

本文根据国内某矿情况确定了岩体的力学参数与载荷条件,选用三维弹性有限元研究了非对称岩体削弱工程对矿体崩落进程的影响,提出了矿体的破坏机理和判据,以及合理布置岩体削弱工程的一系列原则。

According to the conditions of a mine in China, this paper determines the mechanical parameters and original stresses of the rock masses, chooses the three dimen-sional elastic finite element analysis technique to research the influence of asymmetric boundary weakening on the caving process,puts forward the breaking and caving mechanisms of orebody and their criterions as well as a series of principle of rational arrangement of boundary weakening.