摘要
随着我国煤炭资源开采向深部延伸,条带煤柱工作面因复杂应力环境面临严峻的冲击地压风险,以梁宝寺煤矿为例,通过数值模拟和理论分析,深入研究了条带煤柱工作面的应力分布特征及冲击地压机理,并提出了基于应力与围岩结构关系的分类方法。针对冲击地压问题,创新性地应用了应力转换防冲技术,通过“双层钻孔”和“水利压裂”等卸压措施,在梁宝寺煤矿3314工作面有效降低了应力水平,确保了矿压平稳,未发生冲击征兆,验证了技术的显著效果。本研究不仅丰富了理论体系,还为深部煤炭资源的安全高效开采提供了实践经验和理论参考,具有重要的学术和应用价值。
As China′s coal mining extends into deeper depths,strip coal pillar workings face severe risks of rock burst due to complex stress environments.Taking Liangbaosi coal mine as an example,conducted an in-depth investigation into the stress distribution characteristics and rockburst mechanisms in strip pillar workings through numerical simulations and theoretical analysis,and proposed a classification method based on the relationship between stress and surrounding rock structures.To address the issue of rockburst,an innovative stress conversion technology for preventing rockburst was applied.By implementing pressure relief measures such as"double-layer drilling"and"hydraulic fracturing,"the stress levels in the 3314 working face of Liangbaosi coal mine were effectively reduced,ensuring stable mine pressure without any signs of rockburst.This verified the significant effectiveness of the technology.This research not only enriched the theoretical framework but also provided practical experience and theoretical reference for the safe and efficient mining of deep coal resources,holding important academic and practical value.
作者
王兆义
温林朋
李广汉
曹晨
WANG Zhaoyi;WEN Linpeng;LI Guanghan;CAO Chen(Shandong Energy Luxi Mining Liangbaosi Energy Co.,Ltd.,Jining 272404,China;College of Mining,Liaoning Technical University,Fuxin 123000,China)
出处
《煤炭技术》
2025年第2期21-26,共6页
Coal Technology
关键词
条带煤柱工作面
冲击地压机理
应力转换防冲技术
数值模拟
矿压控制
strip pillar working face
rockburst mechanism
stress conversion and rockburst prevention technology
numerical simulation
mine pressure control
