Application research on identifying post mining goaf of inclined thick and large ore body based on semi aerial transient electromagnetic method
The exploration of postharmine goaf is the basis of subsequent safety prevention and treatment.The postharmine area of 30#orebody of Huangshan Copper-nickel mine was explored by semi-airborne transient electromagnetic method.The apparent resistivity data obtained from the transient electromagnetic response were compared with the lithology data of geological exploration and the stope layout map in the middle section,and the abnormal area was delineated with 3D imaging technology.The results show that the anomalous area of the whole apparent resistivity is consistent with the mining area.The roof height of the anomalous area is less than 600m,the water content of the covering layer is low and there is no obvious caving expansion in the goaf.
万方数据
维普
