| 含盐土水理参数的试验研究 |
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| 引用本文： | 邓友生,何平,周成林,张钊.含盐土水理参数的试验研究[J].冰川冻土,2004,26(Z1):39-43. |
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| 作者姓名： | 邓友生 何平 周成林 张钊 |
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| 作者单位： | State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu730000, China,The First Survey and Design Institute of China Railway, Lanzhou Gansu 730000, China |
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| 摘 要： | By the indoor experiment research the hydraulic parameters of the saline soil (soil-water potential and coefficient of permeability), find the some characters of the soil- water potential of saline soil: for the same saline soil at the same dry bulk density, whenever salt solution in soil, at the same liquor content the absolute value of the soil-water potential is always bigger than the saltless soil. And at the same liquor content the absolute value of the soil-water potential increases with increasing the concentration of the salt liquor. And at the same concentration of the salt liquor and at the same liquor content, the absolute value of the soil-water potential of sulphate salt liquor soil is bigger than chloride salt liquor soil. Moreover, the absolute value of the soil-water potential of calcium chloride liquor is bigger than sodium chloride liquor. The disciplinarian of the coefficient of permeability to the saline soil is that whenever saline soil the coefficient of permeability decreases with increasing the salt content and the fine soil change more obviously than coarse-grained soil and the sulphate salt soil change more obviously than sodium chloride salt soil.
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| 关 键 词： | saline soil hydraulic parameters experiment research |
Experiment Research of Saline Soil Hydraulic Parameters |
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| DENG You-sheng,HE Ping,ZHOU Cheng-lin,ZHANG Zhao.Experiment Research of Saline Soil Hydraulic Parameters[J].Journal of Glaciology and Geocryology,2004,26(Z1):39-43. |
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| Authors: | DENG You-sheng HE Ping ZHOU Cheng-lin ZHANG Zhao |
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| Abstract: | By the indoor experiment research the hydraulic parameters of the saline soil (soil-water potential and coefficient of permeability), find the some characters of the soil- water potential of saline soil: for the same saline soil at the same dry bulk density, whenever salt solution in soil, at the same liquor content the absolute value of the soil-water potential is always bigger than the saltless soil. And at the same liquor content the absolute value of the soil-water potential increases with increasing the concentration of the salt liquor. And at the same concentration of the salt liquor and at the same liquor content, the absolute value of the soil-water potential of sulphate salt liquor soil is bigger than chloride salt liquor soil. Moreover, the absolute value of the soil-water potential of calcium chloride liquor is bigger than sodium chloride liquor. The disciplinarian of the coefficient of permeability to the saline soil is that whenever saline soil the coefficient of permeability decreases with increasing the salt content and the fine soil change more obviously than coarse-grained soil and the sulphate salt soil change more obviously than sodium chloride salt soil. |
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| Keywords: | saline soil hydraulic parameters experiment research |
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