掘进面断层附近瓦斯渗流场演化的数值分析  

Numerical analysis for variation of coal gas seepage nearby fault at heading face

作　　者：夏永军[1,2] 

机构地区：[1]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [2]中国煤炭科工集团重庆研究院有限公司,重庆400037

出　　处：《辽宁工程技术大学学报（自然科学版）》2014年第4期447-450,共4页Journal of Liaoning Technical University (Natural Science)

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.In order to solve the problem of coal gas seepage variation anomaly when outburst coal heading face encounters the fault, the numerical simulation software ANSYS10.0was 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.

关 键 词：煤与瓦斯突出 ANSYS10.0 渗流场 断层 瓦斯压力 应力梯度 掘进面 

分 类 号：TD712[矿业工程—矿井通风与安全]