青藏工程走廊冻融土热扩散系数特性与预测模型研究
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刘志云, 钟振涛, 崔福庆, 陈建兵, 彭惠
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Study on characteristic and prediction model of permafrost thermal diffusivity of Qinghai-Tibet engineering corridor
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Zhiyun LIU, Zhentao ZHONG, Fuqing CUI, Jianbing CHEN, Hui PENG
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表 3 热扩散系数二元拟合相关参数
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Table 3 Related parameters of binary fitting for thermal diffusivity
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土类 | 土壤状态 | 参数 |
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a1 | b1 | c1 | d1 | e1 | f1 |
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黏性土 | 融土 | 0.581 | -0.005 | -1.591×10-4 | 3.395×10-6 | -0.004 | 0.023 | 冻土 | 1.450 | -0.011 | 1.051×10-4 | -3.487×10-7 | -0.486 | 0.157 | 粉土 | 融土 | -0.127 | 0.008 | -8.024×10-4 | 1.135×10-5 | 0.851 | -0.237 | 冻土 | 0.404 | 0.036 | -8.191×10-4 | 5.180×10-6 | -0.163 | 0.161 | 全风化岩类 | 融土 | 2.747 | 0.036 | -2.312×10-3 | 3.091×10-5 | -2.328 | 0.602 | 冻土 | 2.181 | 0.044 | -1.603×10-3 | 1.286×10-5 | -1.293 | 0.258 | 砂土 | 融土 | 0.892 | 0.056 | -2.895×10-3 | 3.630×10-5 | -0.792 | 0.297 | 冻土 | 1.752 | 0.041 | -1.163×10-3 | 8.211×10-6 | -1.187 | 0.382 | 碎石土 | 融土 | -1.101 | 0.063 | -5.069×10-3 | 1.221×10-4 | 1.486 | -0.330 | 冻土 | 1.872 | 0.031 | -1.007×10-3 | 6.090×10-6 | -0.872 | 0.211 |
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