Abstract：The study ore district is an integrated mine, whose excavation situation is rather complex. The authors thus put forward the systematic methods which combine surface geophysical exploration with downhole geophysical exploration so as to detect the goaf and its water log situation. First, three-dimensional seismic exploration is employed to detect the development of coal seam and structures in the ore district, accompanied by the delineation of anomaly distribution in the goaf. On such a basis, surface electric methods such as transient electromagnetic method and high-density electric method are emphatically used near the anomaly district to verify the existence of goaf and investigate the water-bearing and transmissivity situation of the goaf and structures. Then, downhole transient electromagnetic method is utilized to accurately locate the downhole anomaly near the goaf waterlogged area delineated by surface methods. The systematic application of the above-mentioned methods not only guarantees the high-efficiency production of the mine but also realizes the precise exploration of coal resources and emphatic detection of the goaf and its water quantity as well as effective reduction of downhole advanced drilling workload. Therefore, it has fairly reasonable technical and economic properties and is suitable for widespread application in the mine whose underground excavation situation is relatively complex.
郝治国, 贾树林, 文群林. 综合物探方法在采空区及其富水性探测中的应用[J]. 物探与化探, 2012, 36(S1): 102-106.
HAO Zhi-guo, JIA Shu-lin, WEN Qun-lin. THE APPLICATION OF INTEGRATED GEOPHYSICAL EXPLORATION METHODS TO THE DETECTION OF GOAF AND ITS WATER LOG SITUATION. Geophysical and Geochemical Exploration, 2012, 36(S1): 102-106.
