南京林业大学学报（自然科学版）2012，Vol.36Issue(2)：42-46,5.
孔隙率与饱和度对粉土导热特性的影响
Influence of porosity and saturation on thermal properties of silty soils
摘要
Abstract
In order to study the influence of porosity and saturation on thermal properties of silty soils, thermal conductivity and specific volume heat of the saturated and unsaturated silty soils from Suzhou and Zhengzhou are measured with the ISOMET apparatus. The evolution relationships between thermo-physical parameters (thermal conductivity and specific volume heat) , saturation and porosity are analyzed based on three phase composition of silty soils. The results indicate the thermal conductivity and specific volume heat of silty soils with constant porosity both are increased as saturation increased. The saturation of silty soils has a critical value ( 5ro). When the saturation Sr is greater than Sr , the specific volume heat is decreased as porosity increased. The relationship of porosity, saturation and thermal conductivity is nonlinear and the relationship of porosity, saturation and specific volume heat is linear.关键词
粉土/导热系数/体积比热容/孔隙率/饱和度/三相构成Key words
silty soil/ thermal conductivity/ specific volume heat/ porosity/ saturation/ three-phase composition分类
建筑与水利引用本文复制引用
王海波,杨平,何忠意..孔隙率与饱和度对粉土导热特性的影响[J].南京林业大学学报（自然科学版）,2012,36(2):42-46,5.基金项目
江苏省六大人才高峰行动计划资助项目 （）
江苏省科技厅苏州轨道交通专项课题(ZXJ0802) （ZXJ0802）
