顶板走向钻孔抽采技术应用研究  

Study on application of gas drainage technology by using roof along strike borehole

作　　者：周爱星 梁文勖 

机构地区：[1]山西天地王坡煤业有限公司,山西晋城048021 [2]煤科集团沈阳研究院有限公司,辽宁沈阳110016

出　　处：《能源与环保》2017年第3期118-120,共3页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家科技重大专项资助项目(2016ZX05045-004-001)

摘　　要：针对王坡煤矿U型通风造成上隅角瓦斯经常超限的问题,利用顶板走向长短钻孔抽采采空区瓦斯,介绍了顶板走向长短钻孔抽采采空区瓦斯原理,对钻孔参数进行了设计并在3207工作面进行了应用。采取措施后,回风巷和上隅角瓦斯浓度明显降低,证明顶板钻孔抽采能有效地遏制采空区瓦斯向空间涌出,减少瓦斯超限事故的发生。According to U-shape ventilation system which lead to upper corner gas overrun at Wangpo Coal Mine,gas drainage with roof along strike boreholes were used to drain the goaf gas. The principle of high level borehole gas drainage is introduced, and the borehole parameters are designed and field application is carried out at the 3207 working face. After the application, return airway and the upper corner gas concentration decreased significantly. High level borehole drainage can effectively restrain the gas emission from goaf, and to reduce occurrence of gas overrun accidents.

关 键 词：顶板走向钻孔 瓦斯治理 瓦斯抽采 上隅角 U型通风 

分 类 号：TD712.6[矿业工程—矿井通风与安全]