山东煤炭科技2026，Vol.44Issue(4)：13-17,23,6.DOI:10.3969/j.issn.1005-2801.2026.04.003
基于强矿压显现的围岩巷道U29型矩形支架优化
Optimization of U29-shaped Rectangular Bracket for Surrounding Rock Roadway Based on Strong Mine Pressure Behavior
王俊龙1
作者信息
- 1. 晋能控股煤业集团煤峪口矿,山西 大同 037000
- 折叠
摘要
Abstract
In view of the frequent failure problem of the support system in the 307 panel area roadway surrounding rock of the 14#layer in Meiyukou Mine under strong mine pressure behavior,based on the surrounding rock dynamic response mechanism and the structural stiffness collaborative mechanism,a U29-shaped rectangular steel bracket optimized design system is constructed.The FLAC3D and ANSYS/LS-DYNA joint modeling method is adopted to simulate the stress response,deformation mode,and energy dissipation process of the bracket under impact load;By stiffening nodes,nested connections,and optimizing support processes,the overall stiffness and resisting shear strength of the bracket are improved.The industrial test results show that optimizing the bracket can significantly reduce the roof subsidence rate,the side convergence amount,and the bracket torsion rate.The retention rate of the bearing capacity is improved to 88.7%,effectively suppressing structural damage and surrounding rock instability caused by impact disturbance,and providing a reliable support technology path for controlling the strong mine pressure behavior of high stress roadways.关键词
冲击/巷道/U29钢棚/矩形/支架Key words
impact/roadway/U29 steel shed/rectangle/bracket分类
矿业与冶金引用本文复制引用
王俊龙..基于强矿压显现的围岩巷道U29型矩形支架优化[J].山东煤炭科技,2026,44(4):13-17,23,6.
