山东煤炭科技2025，Vol.43Issue(4)：20-25,6.DOI:10.3969/j.issn.1005-2801.2025.04.005
倾斜煤层对沿空留巷支护体稳定性影响研究
Study on Influence of Inclined Coal Seam on Support Body Stability of Retaining Roadway Along Goaf
杨庭泽1
作者信息
- 1. 山西华宁焦煤有限责任公司,山西 临汾 042100
- 折叠
摘要
Abstract
The inclined coal seam has a relatively significant impact on the support stability of retaining roadway along goaf.In order to explore the stability of retaining roadway along goaf in different inclined coal seams in Xinganzhuang Coal Mine,theoretical analysis and numerical simulation methods are used to study the influence of inclined coal seams on the support body stability of retaining roadway along goaf.A mechanical model of retaining roadway along goaf for coal seam inclination angle is established,and numerical models of coal seam inclination angle under 0°,22°,and 32° conditions are established.The prospect of the inclined coal seam retaining roadway along goaf support technology is conducted,and reasonable suggestions are proposed for different situations.The research results indicate that as the inclination angle of the coal seam increases,the required support resistance of the roadway side increases,and the support structure needs to provide greater supporting force to resist the unfavorable effects caused by inclination;As the inclination angle of the coal seam increases,the peak and range of the vertical stress of the retaining roadway support body expand,and greatly weaken the stability of the support body,causing it to gradually transition from an elastic state to a large-scale plastic failure.关键词
倾斜煤层/沿空留巷/支护体/支护阻力Key words
inclined coal seam/retaining roadway along goaf/support body/support resistance分类
矿业与冶金引用本文复制引用
杨庭泽..倾斜煤层对沿空留巷支护体稳定性影响研究[J].山东煤炭科技,2025,43(4):20-25,6.
