摘要

The interaction of the dynamic factors including the coal exthermic oxidation, the coal destruction and the coal self-oxygen lead to the outcrop fire of coal seam. Some special requirements must be called for the fire-fighting technology, and introducing a new fire-fighting composite gel for the outcrop fires, analysing the features of the gel and describing the performance and application of injecting the gel in detail. At last, proved the fire-fighting composite gel is efficiency and security for the outcrop fires by two fire-fighting applications in Haibaoqing of Sichuan Province 4(#) coalseam and Bozidun of Xinjiang Province 4(#) coal seam outcrop fires.