大采高工作面矿压显现规律的数值模拟研究

Numerical simulation study on mining pressure behavior in large mining height face

由于大采高开采会带来煤壁片帮、端面冒顶等问题,研究大采高综采工作面矿压显现规律有利于解决这些问题,且大采高工作面矿压的显现规律对工作面的支架选型、巷道布置等起着重要的决定作用,为保证大采高工作面的安全高效生产,利用FLAC3D软件对赵固矿工作面相同推进长度不同采高下和相同采高工作面不同推进长度下矿压的变化进行了数值模拟,通过垂直应力、垂直位移、塑性区变化规律模拟结果来分析研究大采高工作面的矿压显现规律。为类似采矿条件下的矿压显现规律的研究提供参考数据。

The large mining height may cause rib caving and heading face caving,study of mining pressure behavior in large mining height face was carried out to solve the problem,the mining pressure law played a key role in support selection and roadway arrangement,FLAC3 D software was adopted to simulate the mining pressure of same mining length but different mining height and same height but different mining length in Zhaogu Mine,the mining pressure behavior was analyzed by simulation results of vertical stress,vertical displacement and plastic zone,providing reference for mining pressure behavior study under similar condition.