Application of integrated predicaiton of water inrussing based on static geopyhysical logging probe and dynamic microseismic monitoring

There are two reasons for water inrushing associated with coal mining concluded as: failed in field prospecting and delineating the static properties of key confining beds and seepage paths before mining; failed in field monitoring and delineating the dynamic properties of key confining beds and seepage paths during mining.For the rock static properties, geophysical logging, seismic prospecting and GSR(Geophysical Strata Rating) were employed in the one hand, and for the dynamic failure processing of surrounding rock, the real time microseismic monitoring was used on the other.Based on the techniques and analysis mentioned above, the description of coal seams, key confining beds and faults has been done; the positions and properties of soft parts within key confining beds, the potential extension and boundary of confining beds, the geologic origin of confining beds as well as potential seepage path and dangerous region were also deduced. A prediction modeling based on the static and dynamic methods discussed above were conducted quantitative. The consideration of "the static studies on rock strata before mining and the failure processing of surrounding rock and geological structure during mining should be treated as a whole to water inrushing issues" was undertaken.