高位钻孔采空区瓦斯抽采技术应用效果分析

Discussion on the Application Results of High Level Bore Goaf Gas Drainage

本文以贵州发耳煤矿10102采煤工作面作为研究对象,对采空区高位钻孔抽放瓦斯原理进行论述,并且结合此原理设计高位钻孔的抽放参数。为有效快捷地评价高位钻孔的抽放效果,本文通过单元法对其进行评价,最终找到存在的问题及其解决方法。该技术的应用实践解决了该工作面瓦斯超限的问题,获得了有价值的技术参数,积累了宝贵的实践经验。

Based on the specific conditions of working face 10102 of Guizhou Fa＇er Coal Mine, the principles of high level bore goal gas drainage are discussed and the drilling parametem are also designed. To effectively and rapidly evaluate the drainage effects, the Galerkin method is applied and the existed problems and the solutions are found out. The application of this technology has solved gas over limitation, the valuable technical parameters can be achieved and precious experiences be obtained.