中国矿山工程

In this paper, Jinchuan No.2 Mine with drift and fill stoping is taken as the research object. Numerical simulation on three different mining methods, namely level, panel and drift mining, are carried out, with comparison and analysis made on the stress, plastic zone and displacement in the mining process. The results show that as the mining simulation refines, the maximum principal stress, plastic zone range and displacement continuously decrease. Therefore,in the process of rock mechanics simulation, the grid should be refined as much as possible and the actual mining methods should be reproduced to reduce the disturbance effect of mining simulation. The research can provide reference for numerical simulation of mining.