大倾角煤层长壁综采面上端头支护技术

Technology of Tail T-junction at Fully-Mechanized Longwall Mining Face in Steeply Dipping Seam

大倾角煤层走向长壁综采(放)工作面上端头存在着顶、底板三角区。上端头采用抬棚、基本架或端头支架支护。工程实践表明,采用端头支架支护方式解决了大倾角走向长壁综采(放)工作面上端头支护技术难题,取得了良好的支护效果,降低了劳动强度,确保了上端头的安全,提高了生产效率。

There are roof and floor triangle areas in the tail T-junction at the fully-mechanized longwall mining （caving）face in steeply dipping seam. The timber,hydraulic support and T-junction hydraulic support are adopted in the tail T-junction.The engineering practice shows that the application of T-junction hydraulic support has solved the difficult technical problems of the tail T-junction of the fully-mechanized longwall mining （caving）face in steeply dipping seam, and achieved good supporting effect. Have reduced the labor intensity, and ensured the safety of the tail T-junction so as to improve the efficiency of production in this way.