大地导电率在特高压线路工程中的应用

Application of Earth Conductivity in Extra-high Voltage Line Engineering

本文以某特高压线路工程为案例,通过对称四极电测深采集野外数据,内业采用了量板法、简化法、计算法、测算量板法进行大地导电率的解译,并对比解译成果。通过对比分析,建议采用量板法与简化法两种方法同时处理,并对比成果的有效性。在采用量板法时,建议使用一维瑞典电阻率反演软件获得地下电阻率和岩土厚度来代替人工对比标准电测深曲线,以降低人为误差,提高内业资料处理效率。

We have collected field data through symmetrical quadrupole electric sounding in an extra-high voltage line project and made this as an example in this paper.We have used the measured plate method,simplification method,calculation method and calculation plate method to interpret the earth conductivity,and compared the interpretation results.We suggested to use two methods of measured plate method and simplified method at the same time,and compared the effectiveness of the results.In order to reduce the human error and improve the efficiency of industrial data processing,we suggested to use one-dimensional Swedish resistivity inversion software to obtain the underground resistivity and rock-soil thickness instead of using the standard electrical depth curve when using the quantitative method.