中厚煤层综采工作面切顶卸压沿空留巷技术研究
付海勇
（山西潞安集团蒲县开拓煤业有限公司，山西 蒲县 041206）
摘要： 以沿空巷道53_下16 运输顺槽为研究对象，采用FLAC3D 模拟得到巷道受上下区段53_下16工作面、53_下18 工作面
采动影响，应力峰值达到57.0 MPa，围岩出现变形破坏。为了提高巷道稳定性，提出采用超前支护、切顶爆破卸压和挡
矸支护减小应力集中和加固围岩。采用“十”字观测法监测巷道围岩变形量。由监测结果可知，切顶卸压有效提高了巷
道稳定性。
关键词： 沿空留巷；切顶卸压；动压；应力峰值
中图分类号： TD353     文献标识码： A     文章编号： 2095-0802-(2021)06-0032-03
Research on Gob-side Entry Retaining Technology with Roof Cutting and Pressure Relief in
Fully Mechanized Mining Face of Medium-thickness Coal Seam
FU Haiyong
(Puxian Development Coal Industry Co., Ltd., Shanxi Lu'an Group, Puxian 041206, Shanxi, China)
Abstract: Taking the 53_lower16 haulage gate of the roadway along gob as the research object, this paper used FLAC3D simulation
to find that the roadway was affected by mining of 53_lower16 working face and 53_lower18 working face in the upper and lower sections,
and the stress peak reached 57.0 MPa, and the surrounding rock appeared deformation and failure. In order to improve the
stability of roadway, advanced support, roof cutting blasting pressure relief, using retaining gangue support were proposed to
reduce stress concentration and reinforce surrounding rock. The "cross" observation method was used to monitor the deformation
of surrounding rock. The monitoring results showed that the roof cutting and pressure relief could effectively improve the stability
of the roadway.

Key words: gob-side entry retaining; roof cutting and pressure relief; dynamic pressure; stress peak