高瓦斯隧道揭煤及防突施工研究

Study on Coal Uncovering and Anti-burst Construction in High Gas Tunnel

为保证高瓦斯隧道穿越含煤地层段揭煤、施工安全等问题,通过隧道超前探测钻孔、预测钻孔,准确掌握了隧道穿越煤层、瓦斯的赋存情况。用长距离预报指导中短距离预报,微观预报验证宏观预报、中短距离预报验证长距离预报的工作思路,来对煤层及瓦斯突出做出预判,防止瓦斯突出、瓦斯爆炸、瓦斯燃烧、坍塌等安全事故发生,确保庙埂隧道横洞工区煤层高瓦斯段落安全、高效的揭煤施工。

In order to ensure the problems of coal mining and construction safety of high gas tunnels passing through coal-bearing strata,the tunnels are used to detect boreholes and predict drilling holes,and accurately grasp the occurrence of tunnels passing through coal seams and gas.Long-distance forecasting is used to guide medium-and short-distance forecasting,micro-forecasting to verify macro-forecasting,and short-and medium-distance forecasting to verify long-distance forecasting work,to predict coal seams and gas outbursts,prevent gas outburst,gas explosion,gas combustion,collapse such as the occurrence of safety accidents,to ensure safe and efficient coal uncovering of coal seam high gas passages in the cross-section of the temple tunnel.