采矿与安全工程学报2017，Vol.34Issue(1)：60-66,7.DOI:10.13545/j.cnki.jmse.2017.01.009
工作面贯通前矿压调整时剩余煤柱稳定性分析
Stability analysis of un-mined coal pillars during the pressure adjustment prior to working face transfixion
摘要
Abstract
To avoid roof weighting during the working face transfixion and equipment returning,and to ensure the surrounding rock stability of the equipment remove gateway,the applicable conditions of pressure adjustment measures prior to working face transfixion were analyzed,based on which the me-chanical model of un-mined coal pillar in terminal mining was established.According to the model ob-tained,the function relation has been established between coal pillar width and of critical occurrence conditions and the mechanical parameters of surrounding rock,engineering parameters,or the destruc-tion form of main roof prior to transfixion.The results have shown that the key factors influencing the stability of surrounding rock in end-mining are the fault location of main roof,the overlay stratum thickness,and the nature of the strata and the mining height,etc.Therefore,during the non-mining pe-riod the adjustment measures should be taken to adjust the mining pressure prior to transfixion,and we should give full consideration to the key influencing factors to ensure the stability of the un-mined coal pillars.关键词
基本顶/剩余煤柱/稳定性分析/回采工艺/周期来压Key words
main roof/un-mined coal pillar/stability analysis/mining technology/periodic weighting分类
矿业与冶金引用本文复制引用
谷拴成,黄荣宾,李金华,苏培莉..工作面贯通前矿压调整时剩余煤柱稳定性分析[J].采矿与安全工程学报,2017,34(1):60-66,7.基金项目
陕西省教育厅科研计划项目(2013JK0961) （2013JK0961）
