摘要
蒲县新良友煤业11102轨道巷在临近工作面回采动压影响下失稳破坏严重,因此设计内错工作面新掘一条轨道巷,通过理论计算得到煤柱的极限宽度为6.164~7.236 m,通过工程类比对新掘巷道的支护参数进行设计,通过数值模拟研究确定合理的煤柱宽度为11 m,现场应用结果表明,所设计的支护方案和护巷煤柱宽度合理。
The 11102 rail roadway of Xinliangyou Coal Industry is seriously destabilized and damaged under the influence of the mining dynamic pressure near the working face.Therefore,new rail roadway away from the original location need to be tunneled in the design of the working face.Theoretical width of the coal pillar is 6.164~7.236 m.Design the support parameters of the newly excavated roadway through engineering analogy.The numerical simulation study determines the reasonable width of the coal pillars to be 11 m.The field application results show that the designed support scheme and the width of the coal pillars are workable.
出处
《山西焦煤科技》
2020年第5期27-30,共4页
Shanxi Coking Coal Science & Technology
关键词
沿空掘巷
小煤柱
合理尺寸
巷道支护
矿压监测
Gob-side entry retaining
Small coal pillars
Reasonable size
Roadway support
Mine pressure monitoring
