高电压技术2017，Vol.43Issue(11)：3769-3776,8.DOI:10.13336/j.1003-6520.hve.20171031037
基质结构对土壤冲击特性的影响
Effects of Matrix Structure on the Impact Properties of Soil
摘要
Abstract
It is extremely significant to study the effect of different matrix structure on soil impact properties,which can refine the soil medium impact theory and perfect lightning protection and grounding research.Conseqently,we analyzed the conductive mechanism of different matrix structural soil in experimental way,and set the soil impact experiment platform to study the soil impact properties which were affected by different matrix structures.The experimental results show that:as for non agglomerated soil matrix structure,under the same water content,the soil impact resistivity,critical breakdown strength,and breakdown delay time will increase with the soil particle size increasing,And these factors are affected by soil porosity and particle size uniformity.As for agglomerated soil matrix structure,its impulse characteristic does not conform to the rule which non agglomerated soil has.And under the same water content,the conductivity of the red clay is weaker than that of sandy soil with uniform particle size.The conclusion can be drawn that using fine sand alternative soil to carry impact characteristics research of soils is one-sided.关键词
土壤基质结构/团聚性/土粒粒径/土壤冲击电阻率/临界击穿场强/击穿时延Key words
soil matrix structure/agglomerative/soil particle size/soil impact resistivity/critical breakdown field/breakdown delay time引用本文复制引用
曹晓斌,杜俊乐,高竹青,田明明,马御棠..基质结构对土壤冲击特性的影响[J].高电压技术,2017,43(11):3769-3776,8.基金项目
国家自然科学基金(51325704).Project supported by National Natural Science Foundation of China (51325704). （51325704）
