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首先分析了竖井条件下瓦斯压力测定的影响因素,继而以安徽金黄庄副井揭煤为背景,通过对工作面掘进过程中周围应力分布情况进行数值模拟,总结其应力分布特点,结合应力分布特点,提出了竖井条件下瓦斯压力准确测定的方法,最后通过在金黄庄煤矿瓦斯压力测定的工程实践验证了该方法的正确性。
First of all, the influencing factors of gas pressure measurement in vertical shaft are analyzed. Then, based on the uncovering of coal in Jinhuangzhuang auxiliary shaft in Anhui Province, the stress distribution around the excavation face is numerically simulated and the stress distribution characteristics are summarized. Combined with the stress distribution , Put forward the method of accurate determination of gas pressure in shaft condition, and finally verified the correctness of this method through the engineering practice of gas pressure measurement in Jinhuangzhuang Coal Mine.