煤矿安全2017，Vol.48Issue(8)：56-58,62,4.DOI:10.13347/j.cnki.mkaq.2017.08.016
新型树脂锚杆巷帮支护技术及其应用
Support Technology for Coal Walls of Roadways by New Resin Boltings and Its Application
摘要
Abstract
In order to investigate the support effect of new resin boltings in roadways underground coalmine,62B2 working face of Wangzhuang Coal Mine in Shanxi Province was chosen as the engineering background.The software,FLAC3D,was used to numerically simulate the stress distribution of this roadway in 62B2 working face without support,and the distribution zone of the maximum vertical stress was determined.Comparison of support effect between the new resin boltings and traditional boltings was made through field tests.The research result shows that the zone with the maximum vertical stress is distributed in the place which is around 8 m to 9 m away from the roadway without support.In the area of stress concentration,the deformation of roadway sup ported by the new resin bohings is obviously larger than that by the traditional boltings.However,the result is inverse in the area of normal stress.The resin bolting is practical in the low-stress zone where the coal walls are relatively intact,but it is not suitable for the high-stress zone due to the bad support effect.关键词
新型树脂锚杆/应力分布/巷帮支护/支护效果/数值模拟Key words
new resin anchor/stress distribution/laneway's support/support effect/numerical simulation分类
矿业与冶金引用本文复制引用
王军..新型树脂锚杆巷帮支护技术及其应用[J].煤矿安全,2017,48(8):56-58,62,4.基金项目
国家重点基础研究发展计划(973计划)资助项目(2011CB201202) （973计划）
