煤炭科技2025，Vol.46Issue(1)：47-53,57,8.DOI:10.19896/j.cnki.mtkj.2025.01.010
动压巷道破坏机理及支护参数优化数值模拟研究
Numerical simulation research on failure mechanism of dynamic pressure roadway and optimization of support parameters
摘要
Abstract
The Yima mining area has the characteristics of deep coal burial,thick coal seam and large in-situ stress.It is a typical"three soft"coal seam.Taking the transportation roadway of No.15130 working face of Xin'an Coal Mine in Henan Province as an exam-ple,using the FLAC numerical simulation software,the plastic zone and displacement of the dynamic pressure roadway during the exca-vation and mining periods were analyzed.Based on this,the supporting method of"grouting anchor cable+mining reinforcement"was proposed on the basis of the original supporting method.Finally,the rationality of the supporting method was verified based on the distri-bution of the plastic zone.It was concluded that the anchor rod can effectively cover the plastic zone during the excavation period,and the stability of the surrounding rock can be effectively controlled by reinforcing the anchor cable during the mining impact period.关键词
三软煤层/数值模拟/注浆锚索/塑性区Key words
"three soft"coal seam/numerical simulation/grouting anchor/plastic zone分类
矿业与冶金引用本文复制引用
李德全,马智会..动压巷道破坏机理及支护参数优化数值模拟研究[J].煤炭科技,2025,46(1):47-53,57,8.基金项目
西部煤炭绿色安全开发国家重点实验室开放基金(SKLCRKF20-13) （SKLCRKF20-13）
2023年度河南省博士后科研资助项目 （）
河南省瓦斯地质与瓦斯治理重点实验室开放基金项目(WS2023B03) （WS2023B03）
