| 不同掺合料砂砾石的冻胀实验研究 |
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| 引用本文： | 彭万巍.不同掺合料砂砾石的冻胀实验研究[J].冰川冻土,1988(1). |
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| 作者姓名： | 彭万巍 |
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| 作者单位： | 中国科学院兰州冰川冻土研究所 |
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| 摘 要： | 本文介绍饱水开放系统条件下砂砾石土的冻胀实验及结果,给出了四种土类在不同细颗粒土含量时的冻胀实验结果,并考虑冻结速率的影响;提出了用砂砾石土换填冻层的允许粉粘粒土含量之标准界限和工程实用的冻胀率安全控制指标,给出了其含量与冻胀率的相关曲线及冻胀率预报计算的经验公式。
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| 关 键 词： | 开放系统 高冻结速率 砂砾石土 冻结敏感性 |
Experimental Study of Frost Susceptibility of Sandy Gravel with Different Contents of Fine-grained Soil |
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| Peng,Wanwei.Experimental Study of Frost Susceptibility of Sandy Gravel with Different Contents of Fine-grained Soil[J].Journal of Glaciology and Geocryology,1988(1). |
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| Authors: | Peng Wanwei |
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| Abstract: | The frost susceptibility test of sandy gravel with different contents of finegrained soil was conducted in an open system under higherpenetration rate.After analysing the experimental results of frost heave behavior, the author provides frost susceptibility criteria for the content of four samples including sandy-gravel,gravel, coarse sand and fine sand.The experimental formulas for the relationship between frost heave ratio and the content of less than 0.05mm particle were suggested also. |
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| Keywords: | an open system higherpenetration rate sandy gravel soils frost susceptibility |
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