煤炭与化工2023，Vol.46Issue(11)：14-17,24,5.DOI:10.19286/j.cnki.cci.2023.11.004
采动影响下巷道围岩应力分布及变形特征分析
Analysis on mine pressure distribution and deformation characteristics of roadway surrounding rock under mining influence
陈宪伟 1石媛 2吕振3
作者信息
- 1. 山西潞安环保能源开发股份有限公司常村煤矿,山西长治 046102
- 2. 山西省科技资源与大型仪器开放共享中心,山西太原 030006
- 3. 河北工程大学矿业与测绘工程学院,河北邯郸 056038
- 折叠
摘要
Abstract
Narrow coal pillar will seriously affect the stability of surrounding rock of mining roadway under the dual influence of residual abutment pressure of upper goaf and advance abutment pressure of working face.Through numerical simulation,the stress environment change and deformation and failure characteristics of surrounding rock of roadway in S3-7 working face of Changcun Mine during the mining process of narrow coal pillar roadway were analyzed.The results showed that with the advance of working face,the peak advance abutment pressure increased.The peak value of abutment stress was reached at about 10 m deep on the solid coal side of the roadway,and the influence range was about 55 m.Within the influence range of advance abutment pressure,it showed a trend of increasing first,then decreasing and then increasing.This study could provide reference for other similar mines.关键词
超前巷道/采动影响/窄煤柱/数值模拟Key words
advance roadway/mining influence/narrow coal pillar/numerical simulation分类
矿业与冶金引用本文复制引用
陈宪伟,石媛,吕振..采动影响下巷道围岩应力分布及变形特征分析[J].煤炭与化工,2023,46(11):14-17,24,5.
