THE STRUCTURE-BROKEN DEGREE OF COAL SEAM AND ITS APPLICATION ON HYDROGEOLOGY

Under the tectonic stress,the deformations of coal seams and the adjoining rock strata in fault-block structural area are of good coordination and close correlation.Using the method of structure-broken degree of coal seam,the structure-destroyed level of the water-resisting floor of coal seam can be predicated.After several years' experiments,it is proved that above method is easy to use and of audio-visual results.