山东煤炭科技2024，Vol.42Issue(2)：142-146,5.DOI:10.3969/j.issn.1005-2801.2024.02.031
大埋深高应力煤巷帮部递进式卸压技术及应用
Progressive Pressure Relief Technology and Application in the Side of High Stress Coal Roadway with Large Buried Depth
高久国 1李振安2
作者信息
- 1. 山东唐口煤业有限公司,山东 济宁 272055
- 2. 济宁市能源综合执法支队,山东 济宁 272000
- 折叠
摘要
Abstract
Aiming at the rock burst hazards triggering factors of multiple faults,high stress and other in Tangkou Coal Mine,on the basis of conventional coal body pressure relief technology,segmented hole expansion pressure relief technology,one hole multi-purpose pressure relief technology,and cross face advance pre pressure relief technology for the groove along goaf are proposed,and a progressive pressure relief and hazard relief technology system suitable for high stress roadway side is constructed.The research shows that the segmented hole expansion and pressure relief technology adopts a drilling method of small aperture in the shallow part of the roadway side and large aperture in the deep part,which improves the pressure relief effect in the high stress area of the roadway side and increases the construction efficiency to 1.4 times;One hole multi-purpose pressure relief technology includes shallow hole"drilling+cutting"technology and deep hole"drilling+pressing+injecting"technology,with a total drilling volume of 66%per 100 meters of conventional pressure relief technology;The directional roof breaking-cross face pre pressure relief technology for the groove along goaf effectively reduces the number of pressure relief holes in the next working face groove,achieving the purpose of weakening the roof weighting of the adjacent two working faces and the excavation support pressure of the next working face groove in one go.关键词
冲击地压/煤巷/递进式/卸压Key words
rock burst/coal roadway/progressive/pressure relief分类
矿业与冶金引用本文复制引用
高久国,李振安..大埋深高应力煤巷帮部递进式卸压技术及应用[J].山东煤炭科技,2024,42(2):142-146,5.
