Analysis on mine pressure distribution and deformation characteristics of roadway surrounding rock under mining influence
Chen XianWei1, Shi Yuan2, Lv Zhen3
1. Changcun Mine, Shanxi Lu 'an Environmental Energy Development Co., Ltd., Changzhi, 046102, China; 2. Shanxi Provincial Science and Technology Resources and Large Instrument Open Sharing Center, Taiyuan 030006, China; 3. College of Mining and Surveying Engineering, Hebei University of Engineering, Handan 056038, China
Abstract： Narrow coal pillar will seriously affect the stability of surrounding rock of mining roadway under the dual influence of residual abutment pressure of upper goaf and advance abutment pressure of working face. Through numerical simulation, the stress environment change and deformation and failure characteristics of surrounding rock of roadway in S3-7 working face of Changcun Mine during the mining process of narrow coal pillar roadway were analyzed. The results showed that with the advance of working face, the peak advance abutment pressure increased. The peak value of abutment stress was reached at about 10 m deep on the solid coal side of the roadway, and the influence range was about 55 m. Within the influence range of advance abutment pressure, it showed a trend of increasing first, then decreasing and then increasing. This study could provide reference for other similar mines.
陈宪伟1，石 媛2，吕 振3. 采动影响下巷道围岩应力分布及变形特征分析[J]. 煤炭与化工, 2023, 46(11): 14-17，24..
Chen XianWei1, Shi Yuan2, Lv Zhen3. Analysis on mine pressure distribution and deformation characteristics of roadway surrounding rock under mining influence. CCI, 2023, 46(11): 14-17，24..
