三软煤层综放面上隅角瓦斯综合治理技术研究  

Research on Comprehensive Gas Control Technology in Upper Corner on Fully-mechanized Top Coal Caving Face with Three Soft Coal Seam

作　　者：阮淮阳 郭魏魏 徐旭昭 

机构地区：[1]河南永华能源有限公司郭村煤矿,河南偃师471923 [2]河南省煤炭科学研究院有限公司,河南郑州450001 [3]煤炭工业合肥设计研究院,安徽合肥230041

出　　处：《中州煤炭》2014年第8期56-58,73,共4页Zhongzhou Coal

基　　金：国家自然科学基金项目(41072153);河南省重点科技攻关项目(092102310315)

摘　　要：郭村煤矿12041综采放顶煤工作面主采山西组二1煤层,本煤层瓦斯含量高,煤层透气性系数低,属于难以抽采的三软煤层,工作面巷道单一布置顺层钻孔成孔困难,抽采效果差,因此回采过程中瓦斯涌出量大,上隅角瓦斯超限频繁。在掌握工作面上隅角瓦斯涌出规律的基础上,提出了高位钻场、上隅角顶板插管、工作面浅孔抽放、煤层注水等综合措施,有效控制了上隅角瓦斯异常涌出,提高了工作面安全生产效率。Ⅱ1 coal seam of Shanxi group is the main mining coal seam on 12041 full-mechanized top coal caving face. The coal seam gas content is high and the permeability coefficient is low,which belongs to ＂three soft coal seam＂ , and it is difficult to drainage. The drainage effect is poor if single layer-through boreholes were drilled,so the gas emission is large and the upper corner gas overruns frequently in coal winning. Based on grasping gas emission regularity in the upper comer,comprehensive measures such as the high level drilling field, burried pipes on the upper corner roof, drainage by shallow borehole and water injection were proposed in the paper. The application of these measures has controlled the abnormal gas emission in upper corner, and improved the efficiency of safety production on working face.

关 键 词：三软煤层 上隅角 瓦斯超限 

分 类 号：TD712[矿业工程—矿井通风与安全]