Mine Integrated Geophysical Prospecting

Xi’an research institute takes a domestic leading position in surface prospecting with digital high-density three-dimensional seismic method, TEM detailed prospecting, CSAMT, 3D high resolution earth-resistivity method. Meanwhile, the institute is also uniquely positioned to excavated working face prospecting with in-seam seismic, direct-current electric method, TEM advanced geological detection and borehole geophysical prospecting, etc. It is irreplaceable in aspect of geological structure detailed detection in mining area, buried water bearing/conducting structures detection and advanced detection of excavate workings. A large number of engineering technical problems were solved.Digital High-density 3D Seismic ExplorationCombined with data collecting and processing rule of wide-band, wide azimuth and high-density（known as 2W1H）, the use of 428XL digital detector acquisition equipment, enhances the resolution of longitudinal and lateral seismic data, and solves prospecting problems including small fault, collapse column, sand body’s occurrence scope in the roof of coal seam and interface morphology of Ordovician limestone, etc. Therefore, the institute provides strong technical support for coal mine safety and efficient production.In-seam Seismic ExplorationThe in-seam seismic method conducts detail prospecting on interspace of working face, unknown area of sidewall, front area of heading roadway. Meanwhile, the method can be used to ascertain geological anomalous bodies, like small fault, collapse column, gobs and thinning zone of coal seam. It provides a reliable basis for working face layout and extraction.