预抽瓦斯防治煤与瓦斯突出的应用实例

Case Study of the Prevention of Coal and Gas Outburst by Gas Pre-pumping

安阳龙山煤矿11081区域二1煤层为一突出煤层,本煤层瓦斯预抽是区域性防治煤与瓦斯突出的措施之一.根据预抽煤层瓦斯防突作用原理,选取合理的瓦斯防突有效性指标及各钻孔参数,达到消除该煤层煤与瓦斯突出危险性的目标.据对本煤层瓦斯预抽效果的考查,已达到《防治煤与瓦斯突出细则》之规定,该区域可按无突出危险煤层进行管理.

The Ⅱ1 coal seam of the #11081 area is a gas outburst coal seam in Anyang Longshan coal mine. Gas pre-pumping is one of the measures to prevent the regional outburst of coal and gas. In this paper, a series of reasonable preventing outburst validity index and drilling parameters are selected to achieve a goal of eliminating risk of the coal and gas outburst in accordance with the principle of gas pre-pumping preventing outburst. The case study about the pre-pumping effect of the coal seam shows that the results have reached the Rules of coal and gas outburst prevention and this region can be managed by no coal and gas outburst coal seam.