煤层动压注水技术在高瓦斯掘进工作面的应用

Application of Coal Bed Dynamic-pressure Infusion Technique in High Gassy Heading Face

煤层动压注水就是沿着工作面前方的煤壁,每隔一定的孔距,用煤电钻打眼,然后再用高压橡胶快速封孔器封孔后进行高压注水,将煤壁附近卸压带内的瓦斯挤出,减少落煤时的瓦斯涌出量,从而解决进尺瓦斯超限问题,同时可以起到降尘的作用,为煤矿的安全生产提供安全保障和技术支撑,并取得明显的安全经济效益。

The coal bed dynamic - pressure infusion is drilling with the coal electric drill every other certain pitch of holes along coal wall of the working face, then infusing water by the high - pressured rubber sealed the hole with rapid hole sealer in order to release gas of pressure zone, and to reduce the gas discharge quantity of fell coal, which has solved the gas content over- limitation, simultaneously might play a dustfall-role. This technique provided the safety control and the technical support for the coal mine safety in production, and has obtained the obvious safe and economic benefit.