辽宁工程技术大学学报（自然科学版）Issue(6)：735-740,6.DOI:10.3969/j.issn.1008-0562.2013.06.004
孤岛工作面沿空掘巷合理窄煤柱宽度模拟
Simulation on reasonable width of narrow coal pillar on gob-side entry at island coal face
王晨辉 1汪苗盛1
作者信息
- 1. 河南煤业化工集团，河南 永城 476600
- 折叠
摘要
Abstract
In view of the loss of coal resources caused by maintaining big coal pillars in mining roadway of island working face and the stress concentration induced by wide section coal pillars after the extraction of working face as well as the influences of stress concentration on the extraction of adjacent coal seams and the stability of floor roadways. On the background of the engineering practice of the gob-side entry driving of the mining gateway at 2017 island coal face in Cheng Jiao coal mine, this paper adopts UDEC numerical simulation software to analyze and study the stability of surrounding rock under the conditions of different width of coal pillars at the mining gateway of 2107 working face. The result shows that control of surrounding rock can meet the need of working face safe production when the width of section coal pillar is 4 meters.关键词
孤岛工作面/沿空掘巷/围岩控制/数值模拟/UDEC/煤柱宽度/应力分布/塑性区分布Key words
island coal face/gob-side entry driving/surrounding rock control/numerical simulation/UDEC/width of coal pillar/stress distribution/plastic zone distribution分类
矿业与冶金引用本文复制引用
王晨辉,汪苗盛..孤岛工作面沿空掘巷合理窄煤柱宽度模拟[J].辽宁工程技术大学学报（自然科学版）,2013,(6):735-740,6.
