煤炭与化工2026，Vol.49Issue(7)：28-33,6.DOI:10.19286/j.cnki.cci.2026.07.005
深部软岩巷道围岩分区破裂特征及支护参数优化研究
Study on zonal fracture characteristics and support parameter optimization of surrounding rock for deep soft rock roadway
常春锋1
作者信息
- 1. 山西潞安环保能源开发股份有限公司五阳煤矿,山西 长治 046102
- 折叠
摘要
Abstract
To reveal the severe deformation and instability mechanism of surrounding rock in deep soft rock roadways and propose corresponding support schemes,the severely fractured zone of the No.8002 floor drainage roadway in the deep mining area of Wuyang Mine was taken as the research background.The FDEM numerical simulation method was adopted to analyze the tensile-shear fracture characteristics of roadway surrounding rock,as well as the stress distribution and displacement evolution laws of surrounding rock under different support conditions.The results indicated that the surrounding rock at two roadway sides was mainly fractured via tensile dilation and shear slip,and the roof and floor were dominated by large-deflection deformation.Tensile-shear cracks initiated from corner points were still observed when bolt(cable)supports were applied to the roadway surrounding rock.After grouting treatment was conducted on the surrounding rock,the overall bearing capacity of the roadway surrounding rock was significantly improved.Stress was concentrated at the four corners of surrounding rock,and tensile-shear fractures were effectively controlled.关键词
软岩巷道/拉剪破裂/数值模拟/应力分布特征/支护效果Key words
soft rock roadway/tensile-shear fracture/numerical simulation/stress distribution characteristics/support result分类
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常春锋..深部软岩巷道围岩分区破裂特征及支护参数优化研究[J].煤炭与化工,2026,49(7):28-33,6.
