复杂地质条件下综放工作面火灾治理

摘要

针对安平煤矿15112综放工作面上覆为旧火区的特殊地质条件，分析了发火原因及治理难点，采用了向工作面采空区注氮及地面打孔注浆技术，对火区进行了治理，启封后通过持续向工作面及上覆采空区注氮、工作面上下端头封堵等综合措施，有效的防止了火区复燃，确保了该工作面的正常生产。%Aiming at the special geology condition of overlying old fire area at 15112 fully -mechanized caving face ,an'ping Colliery ,the paper analyzes fire causes and governance difficulties ,using the nitrogen injection in goaf and ground drilling grouting technology to treat fire zone .Fire zone resurgence has been effectively preven‐ted by the comprehensive measures of continue to face in the overlying goaf and nitrogen injection ,the lower end of the first working face closure ,etc .,which guarantees the normal production of the face .