【摘要】 为解决突出煤层掘进工作面遇断层时煤体瓦斯渗流变化异常问题,利用ANSYS10.0数值模拟软件对掘进面断层附近煤体瓦斯压力分布规律进行数值模拟,对比掘进面存在不同断层及无断层条件下瓦斯压力发展变化、压力梯度分布规律.研究结果表明:相同条件下,掘进面遇断层和无断层条件相比,前者瓦斯压力梯度明显高于后者,更容易导致突出灾害发生.更多还原

【Abstract】 In order to solve the problem of coal gas seepage variation anomaly when outburst coal heading face encounters the fault, the numerical simulation software ANSYS10.0 was adopted to simulate numerically the distribution rules gas pressure around the fault of the heading face, and compared the development and change of gas pressure and the distribution rules of pressure gradient with different fault and with no fault in heading face. The results show that, under the same condition, by comparison with and without fault, the pressure gradient of the former was significantly higher than the latter, and more likely to lead to coal and gas outburst disasters.更多还原