高校地质学报2018，Vol.24Issue(2)：251-256,6.DOI:10.16108/j.issn1006-7493.2017091
土体电阻率与导热系数的相关性实验研究
Experimental Study on Correlation between Soil Resistivity and Thermal Conductivity
摘要
Abstract
Four different types of soil were made by mixing Nanjing Xiashu soil and fine sand in different proportions.The resistivity of soil with different water content was measured by four electrodes method.It was found that the resistivity of soil decreased with the increase of water content and clay content.Meanwhile,the thermal conductivity of soil samples was tested by DRE thermal conductivity apparatus,and it was found that the thermal conductivity increased with the increase of water content and sand content.It has been verified that the soil resistivity and thermal conductivity are related to the physical properties of soil,such as saturation and porosity, etc.By fitting the resistivity and thermal conductivity of the soil,a good exponential relationship was found.A mathematical model was established to characterize the correlation between resistivity and thermal conductivity.This study provides the basis for the indirect determination of the thermal conductivity of the soil by using the measured in-itu resistivity index.关键词
电阻率/导热系数/含水率/相关性/指数模型Key words
resistivity/thermal conductivity/water content/correlation/exponential model分类
天文与地球科学引用本文复制引用
刘子文,张丹,程健..土体电阻率与导热系数的相关性实验研究[J].高校地质学报,2018,24(2):251-256,6.基金项目
国家自然科学基金资助项目(41572271) （41572271）
江苏省自然科学基金资助项目(BK20161239) （BK20161239）
