煤与瓦斯突出矿井沿空掘巷布置及优化研究  

Research on the Layout and Optimization of Goaf Excavation in Coal and Gas Outburst Mines

作　　者：李宏伦 Li Honglun(Qianxi Energy Bureau,Qianxi,China)

机构地区：[1]黔西市能源局,贵州黔西

出　　处：《科学技术创新》2025年第10期104-107,共4页Scientific and Technological Innovation

摘　　要：本文聚焦于煤与瓦斯突出矿井中沿空掘巷布置及优化策略,通过理论分析与现场实践相结合方式,深入探索煤柱宽度对巷道稳定性影响机制,提出一套科学有效沿空掘巷布置优化方案。采用先进数值计算方法,模拟分析不同煤柱尺寸下巷道围岩应力分布、位移变化及塑性区扩展情况,揭示煤柱尺寸与巷道稳定性之间内在联系。结合现场试验数据,验证数值模型有效性,进一步评估回采过程中煤柱受力状态和稳定性。研究结果显示,合理煤柱尺寸对于维持巷道稳定、防止煤与瓦斯突出具有至关重要作用。This article focuses on the layout and optimization strategies of goaf excavation in coal and gas outburst mines.Through a combination of theoretical analysis and on-site practice,the mechanism of the influence of coal pillar width on roadway stability is deeply explored,and a scientific and effective optimization plan for goaf excavation layout is proposed.Using advanced numerical calculation methods,simulate and analyze the stress distribution,displacement changes,and plastic zone expansion of the surrounding rock of the roadway under different coal pillar sizes,revealing the inherent relationship between coal pillar size and roadway stability.Combined with the field test data,the validity of the numerical model was verified,and the stress state and stability of the middling coal pillar in the mining process were further evaluated.The research results show that reasonable coal pillar size plays a crucial role in maintaining roadway stability and preventing coal and gas outbursts.

关 键 词：煤与瓦斯突出 沿空掘巷 煤柱稳定性 数值模拟 现场试验 

分 类 号：TD822[矿业工程—煤矿开采]