| 冻融循环作用对黄土压缩性的影响 |
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| 引用本文： | 师华强,倪万魁,刘魁,刘海松.冻融循环作用对黄土压缩性的影响[J].水文地质工程地质,2012,39(3):45-48. |
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| 作者姓名： | 师华强 倪万魁 刘魁 刘海松 |
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| 作者单位： | 1. 长安大学地质工程与测绘学院,西安,710054
2. 中国科学院寒区旱区环境与工程研究所,兰州 730000;长安大学地质工程与测绘学院,西安 710054 |
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| 基金项目： | 国家自然科学基金重点项目(41030741);冻土工程国家重点实验室开放基金项目(SKLFSE200702) |
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| 摘 要： | 黄土不同循环次数冻融试验研究表明,冻融循环作用改变了土的粒径分布,随着冻融循环次数的增加,土体中细颗粒不断增加,土体孔隙比变大,从而使得土体密度变小,但减少的量很小；冻融循环作用使土的压缩系数增大,压缩模量减小.
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| 关 键 词： | 冻融循环作用 黄土 压缩性 |
The impact of the freezing-thawing cycle to compression of the loess |
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| SHI Hua-qiang
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NI Wan-kui
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LIU Kui
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LIU Hai-song.The impact of the freezing-thawing cycle to compression of the loess[J].Hydrogeology and Engineering Geology,2012,39(3):45-48. |
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| Authors: | SHI Hua-qiang NI Wan-kui LIU Kui LIU Hai-song |
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| Affiliation: | 1,2(1.Institute of Geological Engineering and Surveying and Mapping,Chang’an University,Xi’an 710054,China; 2.Cold and Arid Regions Environmental and Engineering Research Institute,CAS,Lanzhou 730000,China) |
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| Abstract: | Through experimenting on the loess by different freezing-thawing cycles test,the conclusions are drawn that the freezing-thawing cycle changes soil particle size.With the increase in the number of freezing-thawing cycles,fine particles in the soil increase,soil pores become larger,and the soil density become smaller,but the reduction is very small.The freezing-thawing cycle of the soil increases the soil coefficient of compression,and the compression modulus decreases. |
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| Keywords: | freezing-thawing cycle loess compression |
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