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为查清甘肃省平凉市华亭县某矿采空区分布范围,该矿采用瞬变电磁法对矿区实施了勘查工作。勘查区的视电阻率曲线类型为K型,采空区表现为高电阻率异常,以视电阻率大于120Ω·m作为确定煤层采空区的阀值,并结合勘查区地质情况推断出煤层采空区的范围,为矿区储量核查及矿山治理提供了依据。
In order to find out the distribution range of a gob of a mine in Huating County, Pingliang City, Gansu Province, the mine carried out prospecting work by using the transient electromagnetic method. The type of apparent resistivity curve in the exploration area is K type, the goaf is characterized by high resistivity anomaly, the apparent resistivity is greater than 120 Ω · m as the threshold for determining the gob of coal seam, and the coal mining is inferred based on the geology of the exploration area The scope of the vacant area provides the basis for the verification of mine reserves and the management of mines.