煤与瓦斯突出对局部通风的影响研究

Study on the Influence of Coal and Gas Outburst on Local Ventilation

为了解决煤与瓦斯突出造成的逆流问题,利用数值模拟软件模拟双巷道掘进情况,对不同突出强度下的瓦斯在巷道的运移规律进行研究,发现瓦斯突出强度越大,瓦斯扩散速度越快;同时对双翼采区不同瓦斯突出强度下的运移规律进行研究,发现瓦斯突出强度越大,瓦斯逆流速度越快,相同时间内同一位置的瓦斯浓度越高。此研究结果可为矿井煤与瓦斯突出的治理提供一定参考。

In order to solve the counter current problem caused by coal and gas outburst,this paper takes Dongqu Coal Mine as the research background,and uses the numerical simulation software to study the gas migration law in the roadway under different outburst intensity during double roadway excavation.It is found that the greater the gas outburst intensity is,the faster the gas diffusion speed is.At the same time,the migration law under different gas outburst intensity is studied.It is found that the greater the outburst intensity is,the faster the gas countercurrent speed is,and the higher the gas concentration at the same position in the same time,which provides a certain reference for the control of coal and gas outburst.