山东煤炭科技2025，Vol.43Issue(11)：19-23,5.DOI:10.3969/j.issn.1005-2801.2025.11.005
厚煤层强采动作用下回采巷道大变形控制技术研究
Research on Large Deformation Control Technology of Stoping Roadway under Strong Mining Action in Thick Coal Seam
方庆生 1申李华 1吴培林1
作者信息
- 1. 山西潞安环保能源开发股份有限公司王庄煤矿,山西 长治 046031
- 折叠
摘要
Abstract
Aiming at the problem of large deformation in the return air roadway of the 91-105 working face in Wangzhuang Coal Mine,four types of support schemes are proposed,numerical simulation is conducted to analyze the displacement fields and plastic zones of the return air roadway under these four support schemes.The research results indicate that,the"strong angle"asymmetric support scheme(Scheme Ⅳ)can effectively control the deformation of the surrounding rock and the development of the plastic zone of the roadway in the working face under the condition of the row spacing of 700 mm×1000 mm without increasing the support cost and the amount of work.The field measurement shows that the roof subsidence of the roadway is about 50 mm,the floor heave is about 19 mm,and the horizontal displacement of the two sides is about 23 mm.The surrounding rock is not obviously broken,which verifies the feasibility of this scheme.The research results provide scientific theoretical basis and technical support for similar projects.关键词
回采/巷道/非对称/支护Key words
stoping/roadway/asymmetric/support分类
矿业与冶金引用本文复制引用
方庆生,申李华,吴培林..厚煤层强采动作用下回采巷道大变形控制技术研究[J].山东煤炭科技,2025,43(11):19-23,5.
