煤炭与化工2024，Vol.47Issue(11)：20-23,4.DOI:10.19286/j.cnki.cci.2024.11.005
高河煤矿E1302工作面沿空留巷充填体宽度研究
Study on filling body width in gob-side entry retaining in No.E1302 Face of Gaohe Mine
李双利1
作者信息
- 1. 潞安化工集团司马煤业有限公司,山西长治 046100
- 折叠
摘要
Abstract
In response to the problem of large thickness of the 3# coal seam in Gaohe Mine and a large amount of coal resources waste by setting up section protection coal pillars,it was proposed to adopt the technology of gob-side entry retaining to improve the coal resource recovery rate.By using theoretical analysis,engineering analogy,and numerical simulation methods,a reasonable width of 1.5m for the filling body next to the roadway was determined.The on-site test was conducted in No.E1302 track roadway,and the monitoring data of the deformation of the surrounding rock in the roadway showed that when the width of the filling body was 1.5m,the deformation of the surrounding rock in the roadway was not significant,and there was no obvious deformation in the filling body,which could meet the safety production needs of the next working face.关键词
厚煤层/沿空留巷/充填体宽度/围岩变形Key words
thick coal seam/gob-side entry retaining/filling body width/surrounding rock deformation分类
矿业与冶金引用本文复制引用
李双利..高河煤矿E1302工作面沿空留巷充填体宽度研究[J].煤炭与化工,2024,47(11):20-23,4.
