低透气性薄煤层瓦斯综合抽放技术实践与应用

Low-permeevbility thin coal seam gas drainage technology practice application of integrated

治理透气性差、薄煤层以综合性瓦斯抽放方法,采用底板抽放、高位钻场抽放、仰角钻场抽放、本煤层预抽及尾排抽放技术。初步构建起了上下结合、动静配合、采前、采中、采后全过程的立体瓦斯抽采体系。

The management of ventilation is poor thin coal seam gas drainag emethods in an integrated. Using floor drainage, high drilling field drainage ~ and the end of the row . Predrainaging drainage technology . the whole combination . with static and dynamic . Before harvest . Mining in the whole process of three - dimensional, postharvest gas extraction system.