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在前人利用高密度电阻率法探测地下采空区工作的基础上,基于采空区在沉降作用下形成的破坏“三带”的结构特点,依据其导电性差异,分析了利用高密度电阻率法查明采空区“三带”分布的可行性,并提出,利用该方法不仅可圈定出地下采空区的位置,又能查明采空区沉降评价所需“三带”的分布特征。实践表明,高密度电阻率法是采空区沉降评价中低耗高效,信息丰富,探测精度高的行之有效的探测技术。
Based on the previous studies on the detection of underground goafs by means of high-density resistivity method, based on the structural features of the “three-zone” damage caused by subsidence in the goaf, based on the differences in conductivity, Density resistivity method to find out the feasibility of the “three zone” distribution of goaf and proposed that this method can not only delineate the location of underground goaf, but also find out the need of “ Three Belts ”distribution characteristics. The practice shows that the high density resistivity method is an effective detection technique with low consumption, high efficiency, abundant information and high detection accuracy in the evaluation of the settlement of goafs.