DETECTION AND EVALUATION OF THE MINING GEOLOGICAL CONDITIONS IN MINING AREA OF “LITTLE DISTANCE COAL SEAM GROUP”

This paper introduces the premining detection and evaluation techniques of mining geological conditions of little distance coal-seam group in the case of the second and third mining areas of Qianjiaying mine field,Kailuan.That is a three-in-one combination of exploration techniques by in-mine comprehensive seismic exploration （2D seismic survey,Rayleigh wave and in-seam seismic）,in-mine drilling and comprehensive geological evaluation.The feasibility,necessity and advanced property of this technology are discussed.