Study On Hydrogeological Character And Karstic Collapse Development Regularity In Tengbei Digging

The karstic collapse column is the old bedrock subside which the stiff non-dissolubility rock caved in subjacent karst cave. It is not only harm for the ground project also serious influence to underground mining. Speaking of the coal mine production , the karstic collapse column as its shape , size and internal stratum was chaotic ,destroyed the coal bed continuity ,which increased largish difficulty to the arrangement and construction of well lane , the mining coal method and the choice of excavated machinery. Which cause the economic loss to several hundred million Yuan every year . It has not obvious sign in the surface but it is harm to the regular production of coal mine and the local resident lives . The karstic collapse column can possibility penetrate the underground water-bearing stratum which is led in once , that will have serious consequence to the coal mine production, it will cause the periphery coal be oxidation which will loss the exploitation value , and the coal reserves will reduce , the mine' s service life will reduce and even the well lane project will not be used , all the above is the largest economic loss. The ground water runoff condition not only influences the karstic collapse column' s water conducted, moreover controls the distribution of strang water conducted karstic collapse column. Not all the karstic collapse column will bring harm except present strang runoff strap and concentrate drainage strap . The strang water conducted karstic collapse column is the important passage ,which should be attached importance to and studied on . So. that we must detect the karstic collapse column; carry on the correlation preventive measure purposefully ; eliminate the security hidden danger, and recall the economic loss, all that has the vital significance to the coal mine economic efficiency.The mining area of TengBei is in the northwest wing of Teng county anticline , between FuShan fault and ZhangPo fault . The geologic structure cortrols coal bed and groundwater' s preservation and the movement rule of the research area, and it affects the development law and shape and distributed rule of the karstic...