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针对近距离煤层火区易受采动影响、层间漏风加速火区复燃的特点,下部煤层掘进期间从强支护、控漏风、超前预测、主动预防与治理等角度出发,建立了一整套监测、预防与治理的自然发火防控体系。现场实践表明以减少火区扰动为基础,通过采取加强巷道支护、全断面喷浆、施工观测钻孔以及注氮等措施,可有效降低上覆火区对本煤层安全掘进的威胁。
In view of the characteristics of close coal seam fire area susceptible to mining, inter-layer leakage to accelerate the re-ignition of the fire area, the lower coal seam during the construction from the strong support, the control of air leakage, ahead of the forecast, the initiative to prevent and control point of view, the establishment of a set Monitoring, prevention and management of natural fire prevention and control system. The practice in the field shows that the measures to reduce the disturbance of fire area can effectively reduce the threat of overburden to the safety of the coal seam through measures such as strengthening roadway support, full-face shot blasting, construction observation drilling and nitrogen injection.