陕西煤炭2024，Vol.43Issue(7)：95-98,122,5.DOI:10.20120/j.cnki.issn.1671-749x.2024.0717
近距离煤层非对称变形巷道支护设计
Support design of close-distanced coal seam's asymmetric deformed roadway
孙鹏 1姬东 1康萌 1蔡敏博1
作者信息
- 1. 陕西陕煤韩城矿业有限公司下峪口煤矿,陕西渭南 715400
- 折叠
摘要
Abstract
During the tunneling of the coal seam roadway,due to the close coal seam mining,the roof was broken and the surrounding rock of the two sides was severely deformed during the initial excavation of the 23306 lower entering gateway in Xiayukou Coal Mine.Aiming at a series of problems,such as roadway surrounding rock deformation and roadway support dif-ficulties and using theoretical analysis and on site monitoring,we explore the causes of the roof breakage during the excava-tion period by optimizing the support scheme.The results show that the improved method of anchor net cable+U-shaped shed support can effectively improve the deformation of the roadway.The further observation of the roadway surrounding rock deformation proves that when the roadway roof is easy to break,at the technical and economic level,the choice of reasonable support parameters and of anchor net cable+scaffolding support can ensure the safe and efficient mining.关键词
巷道围岩变形/锚网支护/现场监测/支护优化Key words
roadway surrounding rock deformation/anchor net support/on site monitoring/support optimization分类
矿山工程引用本文复制引用
孙鹏,姬东,康萌,蔡敏博..近距离煤层非对称变形巷道支护设计[J].陕西煤炭,2024,43(7):95-98,122,5.
