山东煤炭科技2025，Vol.43Issue(5)：1-6,17,7.DOI:10.3969/j.issn.1005-2801.2025.05.001
煤矿动压巷道掘进支护技术研究
Research on Excavation and Support Technology of Dynamic Pressure Roadway in Coal Mine
李海庆 1张柏林 2曹泽琨2
作者信息
- 1. 阳泉市上社二景煤炭有限责任公司,山西 阳泉 045100
- 2. 太原理工大学,山西 太原 030024
- 折叠
摘要
Abstract
In view of the problem that the roadway affected by dynamic pressure in the No.15 coal seam of Shangshe Erjing Coal Mine is prone to occur phenomena of roof subsidence,floor heave and so on,and the support strength is greatly reduced,a method combining surrounding rock stress fixed-point detection-support parameters theoretical calculation-on-site experimental observation is used to verify the roadway surrounding rock support parameters in the No.15 coal seam of Shangshe Erjing Coal Mine.A suitable support scheme for the No.15 coal seam roadway surrounding rock of Shangshe Erjing Coal Mine is proposed,and the implementation effect of the on-site support scheme is observed.Using comprehensive methods such as on-site investigation and research,theoretical calculation,industrial testing and others,analyze the breaking law of overlying rock on the roadway roof under dynamic pressure excavation,determine the control parameters of the dynamic pressure roadway,and the degree of the roof layer separation apparatus is less than 50 mm,which does not reach the critical point for stopping excavation;The layer separation value is not greater than the early warning value,and the stress on the anchor rod and cable does not reach 60％to 70％of their yield load;The support effect of the roof and two sides is good,and the deformation amount does not exceed 5 mm.关键词
围岩变形/巷道支护/支护参数/煤矿安全/围岩压力Key words
surrounding rock deformation/roadway support/support parameters/coal mine safety/surrounding rock pressure分类
矿业与冶金引用本文复制引用
李海庆,张柏林,曹泽琨..煤矿动压巷道掘进支护技术研究[J].山东煤炭科技,2025,43(5):1-6,17,7.
