冲击矿井沿空掘巷合理护巷煤柱尺寸研究  

Study on Reasonable Chain Pillar of Gob-side Entry in Rockburst Mine

作　　者：杨晋陵[1,2] 朱萌萌[1,2] 冯飞胜[1,2] 梁啸尘[1,2] 任禹[1,2] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001 [2]安徽理工大学煤矿安全高效开采省部共建教育部重点实验室,安徽淮南232001

出　　处：《煤炭技术》2014年第7期126-130,共5页Coal Technology

摘　　要：为解决冲击矿井沿空巷道煤柱合理留设的问题,结合工程实践,基于煤柱宽度对巷道围岩稳定性的影响,采用FLAC数值模拟不同宽度护巷煤柱下围岩支承压力、塑性区的演化,分析煤柱应力场变化趋势。实践表明:深井小煤柱护巷技术能够保证沿空巷道的稳定性,确保安全生产。To solve reasonable chain pillar width of gob-side entry in rockburst mine,combined with engineering practice,based on influence of chain pillar width on the stability of surrounding rock,adopted by FLAC numerical simulation to evolve support pressure and plastic zone of surrounding rock under chain pillar width,trend of coal pillar stress change was analyzed.The practice showed that narrow coal pillar technology of gob-side entry in deep mine ensured roadway stability and safety mining.

关 键 词：冲击危险 沿空巷道 护巷煤柱 应力变化 

分 类 号：TD353[矿业工程—矿井建设]