深井开采巷旁充填沿空留巷围岩活动规律研究

摘要

With the increasing of mining depth year by year in China, the content of gas is increasing gradually and existing specially, the problem of gas overrun is threatening the safty operating of mining face seriously. The gob-side entry retaining is the most effective method to solve the problem, but it' s stability controling problem restricts that the gob-side entry retaining generalizes in China. In this paper the successful case in the project practice of airway of 1115(1) in GuQiao mine was taken as the background, the wall rock moving basic law of the gob-side entry retaining was roundly analyzed. It has important direction meaning to the surrounding rock controlling of gob-side entry retaining in the similar condition, it also has active realistic meaning to the gob-side entry retaining' s more broa generalization and application in China.%随着我国煤矿开采深度的逐年增加,瓦斯含量逐渐增大且赋存异常,回采工作面瓦斯超限问题严重威胁着煤矿的安全生产,而沿空留巷则是解决工作面瓦斯超限问题的最有效途径,但沿空留巷顶板稳定性控制问题则制约了沿空留巷技术在我国更广泛地推广应用.本文以顾桥矿1115(1)采煤工作而沿空留巷的成功案例为背景,全面研究分析了沿空留巷围岩活动的基本规律,对类似条件下的沿空留巷围岩控制具有重要的指导意义,使沿空留巷技术在我国得到更广泛的推广应用具有积极的现实意义.