近相变区细砂土导热系数试验及预测模型研究
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刘志云, 张亚星, 崔福庆, 袁堃, 黄川
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Study on thermal conductivity testing and prediction model of fine sandy soil in near phase transition zone
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Zhiyun LIU, Yaxing ZHANG, Fuqing CUI, Kun YUAN, Chuan HUANG
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表2 各试样未冻水含量与温度的拟合关系
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Table 2 Fitting relationship between unfrozen water content and temperature of each sample
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| 试样编号 | ρd/（g·cm-3） | w/% | a | b | R2 | 曲线斜率的平均值 | 对应温度/℃ |
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| 试样1 | 1.65 | 10 | 3.91 | -0.52 | 0.97 | -0.36 | -3.12 | | 试样2 | 1.70 | 10 | 4.10 | -0.47 | 0.96 | -0.35 | -3.19 | | 试样3 | 1.75 | 10 | 3.86 | -0.46 | 0.97 | -0.33 | -3.17 | | 试样4 | 1.80 | 10 | 3.89 | -0.53 | 0.98 | -0.36 | -3.13 | | 试样5 | 1.85 | 10 | 4.13 | -0.46 | 0.92 | -0.35 | -3.19 | | 试样6 | 1.75 | 6 | 2.42 | -0.48 | 0.98 | -0.21 | -3.18 | | 试样7 | 1.75 | 8 | 3.00 | -0.46 | 0.99 | -0.25 | -3.22 | | 试样8 | 1.75 | 10 | 3.86 | -0.46 | 0.97 | -0.33 | -3.17 | | 试样9 | 1.75 | 12 | 4.77 | -0.49 | 0.92 | -0.42 | -3.16 | | 试样10 | 1.75 | 14 | 5.33 | -0.46 | 0.99 | -0.45 | -3.19 |
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