亿欣煤业采空区自燃“三带”数值模拟研究  

Study on Numerical Simulation for Spontaneous Combustion"Three Zones"in Goaf of Yixin Coal Mining

作　　者：姬静伟 Ji Jingwei(Jinneng Holdings Jinsheng Mining Industry Investment Co.,Ltd.,Jincheng,Shanxi 048000)

机构地区：[1]晋能控股晋圣矿业投资有限公司,山西晋城048000

出　　处：《江西煤炭科技》2025年第1期152-158,共7页Jiangxi Coal Science & Technology

摘　　要：针对亿欣煤业XV2308综采工作面采用切顶成巷的开采工艺,造成采空区漏风严重的现象,通过采用数值模拟研究的方法对比分析不同通风方式下采空区自燃“三带”的分布范围及规律,并通过现场实测验证了数值分析的可靠性。得出XV2308工作面采用一进两回“Y”型通风方式下采空区散热带最大宽度25 m、氧化自燃带最大宽度106.5 m、采空区深部>131.5 m进入窒息带。Aiming at the phenomenon of serious air leakage in the goaf due to the mining technology of self-accomplished laneway by roof cutting and pressure release in XV2308 comprehensive mining face of Yixin Coal Industry,the distribution range and law of the spontaneous combustion"three belts"in the goaf under different ventilation methods are comparatively analyzed through numerical simulation,and the reliability of numerical analysis is verified through on-site measurements in the paper,which concludes that the maximum width of the scattering belt in XV2308 working face is 25 m,the maximum width of the oxidised spontaneous combustion belt is 106.5 m,and the deep part of XV2308 working face>131.5 m enters into the asphyxiation belt by adopting the one-in-two-returns Y-type ventilation method.

关 键 词：采空区防火 切顶成巷 数值模拟 自燃“三带” 

分 类 号：TD752.2[矿业工程—矿井通风与安全]