| 摘要: |
| 在室内采用低温冰箱对扰动盐渍土和洗盐后盐渍土的冻胀性进行了研究。结果表明,扰动盐渍土和洗盐后盐渍土在温度高于-4 ℃时的冻胀率变化最大,在温度低于-4 ℃时,其冻胀率趋于稳定。冻胀率不但与温度有关,而且与含水量、易溶盐含量、粉粒含量有很好的线性关系,可用线性方程初步估算盐渍土的冻胀率。 |
| 关键词: 盐渍土 冻胀性 冻胀率 温度 含盐量 含水量 粉粒含量 |
| DOI： |
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| 基金项目:水利部“948”技术转化与创新项目(CT200408) |
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| Research on the frozen-heave character of salty soil |
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| Abstract: |
| The frozen-heave character of the salty soil and desalinized soil is researched in low temperature freezer indoors.The outcomes indicate，when temperature is higher than -4 ℃，the frozen-heave rate reaches the largest；when the temperature is lower than -4 ℃，the frozen-heave rate inclines to be steady．Not only is the frozen-heave rate of salty soil relevant with the temperature，but also there is great linear relation with water content，soluble salt content and silt content.And the frozen heave rate of salty soil can be figured out with linear formula. |
| Key words: salty soil frozen-heave character frozen-heave rate temperature salt content water content silt content |
