煤炭与化工2025，Vol.48Issue(6)：30-35,6.DOI:10.19286/j.cnki.cci.2025.06.006
厚煤层托顶煤巷道再造承载层及快速处置技术研究
Research on rapid excavation and disposal technology for roadway with top coal in thick coal seam
刘根亮1
作者信息
- 1. 潞安化工集团有限公司常村煤矿,山西长治 046000
- 折叠
摘要
Abstract
In thick coal seams,roadways are often excavated along the bottom,which results in a certain thickness of top coal remaining above the roof of the roadway.Due to the lower strength of the coal body than the rock mass,there is often a phenomenon of top coal caving or even collapse,seriously endangering production safety.This article took on-site research and numerical simulation methods as the starting point to conduct a detailed investigation of the geological conditions of the No.2701 belt roadway in Changcun Mine,and proposed different support schemes and pre grouting techniques for numerical simulation and comparative analysis.Finally,the excavation disposal technology of"anchor cable bolt+500mm spacing advanced steel pipe"was obtained.After on-site industrial tests,the phenomenon of roof caving basically no longer occurred.It effectively controlled the deformation of the roof along No.2701 belt roadway.The roadway could be quickly and safely excavated.关键词
托顶煤巷道/快速掘进/数值模拟/超前预注浆Key words
roadway with top coal/rapid excavation/numerical simulation/front pre-grouting分类
矿业与冶金引用本文复制引用
刘根亮..厚煤层托顶煤巷道再造承载层及快速处置技术研究[J].煤炭与化工,2025,48(6):30-35,6.
