石泉煤矿30105工作面开采过X4陷落柱模拟分析

Simulation Analysis of Mining Through X4 Collapse Column of 30105 Working Face in Shiquan Coal Mine

本文基于石泉煤矿水文地质条件,利用FRACOD模拟软件开展了30105工作面走向开采距陷落柱前后30 m和倾向开采4种陷落柱模拟,得到了该过程中水压、应力场、位移场和声发射事件的变化规律。在30105工作面走向、倾向方向开采扰动的影响下,工作面距陷落柱前后30 m及煤层下方35 m,陷落柱活化突水的可能性仍较小。

This paper is based on the hydrogeological conditions of Shiquan Coal Mine,using FRACOD simulation software to carry out the 30105 working face mining before and after the collapse column from 30 m and exploitation of four kinds of collapse column simulation,and obtains the changing rules of water pressure,stress field,displacement field and acoustic emission events in this process.Under the influence of mining disturbance in the strike and dip direction of 30105 working face,the possibility of activating water inrush from the collapse column is still small when the working face is 30 m away from the front and back of the collapse column and 35 m below the coal seam.