双层土壤模型土壤电阻率对接地电阻的影响分析

Soil resistivity docking two-layer soil model the influence of the resistance analysis

为了解双层土壤电阻率对复合地网接地电阻的影响,采用垂直双层土壤模型,利用接地电阻计算公式进行实证计算分析。结果表明,接地电阻值与土壤电阻率呈正比例关系,上层土壤电阻率对接地电阻的影响更大,接地电阻值与土壤分层深度呈反比例关系,上下层土壤电阻率差值越大,其变化越明显,上下层土壤电阻率差值越小时,数值变化越小,数据越趋于稳定。该研究探索了双层地网中土壤电阻率对接地电阻的影响,为土壤电阻率对接地电阻的后续研究分析奠定了基础。

In order to understand the influence of the double-layer soil resistivity on composite ground network grounding resistance,the vertical double-layer soil model is adopted,and the formula for calculation of grounding resistance is used for empirical calculation and analysis.The results showed that the grounding resistance and soil resistivity proportional relations,the influence of upper soil resistivity is bigger on grounding resistance,the grounding resistance and soil layer depth inversely proportional relationship,the larger the difference of soil resistivity between the upper and lower layers is,the more obvious the change is.when the difference is smaller,the less obvious the change is,and the data tends to be stable.The study explores the influence of soil resistivity on the double-layer ground resistance,which laid a foundation for the subsequent research and analysis of the soil resistivity on the ground resistance.