关键词: 综采工作面, 端头围岩, 支护技术

Abstract: During the mining period of the 18107 working face of Wangjialing Coal Mine，due to the influence of the adjacent 18105 working face's goaf，faults and syncline structure，when the mining reached the 900~950 m section，the roof of the working face at the tail end showed signs of fragmentation and leak⁃ age. According to the current mining situation of the working face，the causes of roof breakage and leakage were analyzed from several aspects such as internal stress of the coal body，geological structure，and end support. The "artificial false roof" support was adopted for the leakage area，and the combined support of "flexible grouting + pressure-reducing anchor cable + self-locking anchor bolt" was proposed for the break⁃ age area. Judging from the actual application effect on site，the expansion of the leakage area was controlled after the combined support was adopted. The working resistance of the support was increased to 95%，the collapse length of the coal pillar at the end was reduced to 1.2 m，the collapse depth was reduced to 0.7 m， the roof subsidence was reduced to 0.11 m，and the bottom bulge was reduced to 0.22 m，which achieved re⁃ markable application results.

Key words: fully mechanized mining face, surrounding rock at the end, supporting technology