摘要
确定大地模型和土壤参数是大型地网防雷接地计算的首要工作。土壤电阻率是影响接地阻抗的主要因素之一,它对防雷接地的效果起着重要作用。根据等距四极法测得的土壤视在电阻率,使用遗传算法建立的反演多层水平分层土壤电阻率模型,可反演出土壤的分层结构。三个实例计算结果表明,本模型计算结果和国际著名软件包CDEGS的计算结果非常接近。
Confirming the ground model and soil parameter is the most important work protection grounding computation for large grounding system. The soil resistivity is one of affe of lightning cting ground impedance primary factors; it plays an important role in the lightning protection grounding effect. Based on the equal-space four-pole method measured soil apparent resistivity, the use of genetic algorithm to build the inversion of muhilayer horizontal layered soil resistivity model can be inverted soil layer structure. Three cases show the model calculation results and the famous international software package CDEGS calculation results are close.
出处
《气象与环境科学》
2012年第2期87-91,共5页
Meteorological and Environmental Sciences
基金
河南省气象局气象科学技术研究项目"河南省雷击风险评估技术研究"(Z2007018)资助
关键词
防雷
土壤结构
模型
lightning protection
soil structure
model
