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Soil Table 1: Thermal Conductivity and Diffusivity of Sand and Clay Soils*
土壤属性表1:沙和粘土的导热系数及热扩散率*
 
Soil Type
土壤类型
Dry 
Density
干密度

5% Moist 湿度
10% Moist 湿度
15% Moist 湿度
20% Moist 湿度
k

k

k

k

Coarse
100% Sand
100%粗沙
120
1.2-1.9
0.96-1.5
1.4-2.0
0.93-1.3
1.6-2.2
0.91-1.2
-
-
100
0.8-1.4
0.77-1.3
1.2-1.5
0.96-1.2
1.3-1.6
0.89-1.1
1.4-1.7
0.84-1.0
80
0.5-1.1
0.60-1.3
0.6-1.1
0.60-1.1
0.6-1.2
0.51-1.0
0.7-1.2
0.52-0.90
Fine Grain
100% Clay
100%粉质粘土
120
0.6-0.8
0.48-0.64
0.6-0.8
0.4-0.53
0.8-1.1
0.46-0.63
-
-
100
0.5-0.6
0.48-0.58
0.5-0.6
0.4-0.48
0.6-0.7
0.37-0.48
0.6-0.8
0.41-0.55
80
0.3-0.5
0.36-0.6
0.35-0.5
0.35-0.5
0.4-0.55
0.34-0.47
0.4-0.6
0.30-0.45
*Values indicate ranges predicted by five independent methods. (1) 使用5种独立方法预测得到的范围值(1)。

k
= Thermal Conductivity 导热系数, = Thermal Diffusivity 热扩散率


Coarse Grain 粗质 = 0.075 ~ 5mm
Fine Grain 粉质(细质) = less than 小于 0.075mm (0.075mm = #200 U.S. Standard Sieve 美国标准筛)

1. O.T. Farouki, "Evaluation of Methods for Calculating Soil Thermal Conductivity," U.S. Army Cold Regions Research and Engineering Laboratory Report 82-8, Hanover, NH, 1982.

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