黑龙江科技大学学报2026，Vol.36Issue(5)：724-729,6.DOI:10.3969/j.issn.2095-7262.2026.05.004
近距离煤层上覆采空区遗留煤柱影响下沿空留巷支护技术
Support technology for gob-side entry retaining affected by residual coal pillars in overlying goaf of close-distance coal seams
高玉柱 1赵浩亮 2何斌 3曹新云 2杨忠宇 3单伟男3
作者信息
- 1. 国家能源集团 乌海能源公司黄白茨煤矿,内蒙古 乌海 016000
- 2. 陕西开拓新矿业工程有限公司,西安 710054
- 3. 陕西开拓建筑科技有限公司,西安 710054
- 折叠
摘要
Abstract
This paper is an attempt to address the difficult support challenges of gob-side entry retai-ning affected by the residual coal pillars in the overlying goaf of close-distance coal seams.By taking the No.0213 Upper 201 working face of Huangbaici Coal Mine as the research object,the study analyzes the distribution of concentrated stress beneath coal pillars via the simplified models and fundamental soil me-chanics principles.A specialized entry retaining support scheme is proposed,which adopts flexible form-work wall pouring combined with bolt-mesh-cable reinforcement support for roadways within the concen-trated stress-affected zone,and the numerical simulation and field measurement are conducted to verify the rationality of the support scheme.The results show that the gob-side entry roadway within 60 m for-ward from the open-off cut is subjected to concentrated stress induced by residual coal pillars in the over-lying goaf.Under the proposed support scheme,the maximum bearing pressure of the wall in this roadway section reaches 4.59 MPa,the maximum floor heave of the roadway is 40 mm,and the maximum conver-gence between the wall and roof is 20 mm,showing the better overall entry retaining performance.This research can provide a reference for the support design of gob-side entry retaining in close-distance coal seam mining.关键词
近距离煤层/遗留煤柱/沿空留巷/巷道支护Key words
close coal seam/coal pillar in goaf/gob-side entry retaining/roadway support分类
矿业与冶金引用本文复制引用
高玉柱,赵浩亮,何斌,曹新云,杨忠宇,单伟男..近距离煤层上覆采空区遗留煤柱影响下沿空留巷支护技术[J].黑龙江科技大学学报,2026,36(5):724-729,6.
