| 上海人工二次冻融土无侧限抗压强度研究 |
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| 引用本文： | 肖忠华,胡向东,皮爱如,刘瑞锋.上海人工二次冻融土无侧限抗压强度研究[J].岩土力学,2006,27(Z1):497-500. |
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| 作者姓名： | 肖忠华 胡向东 皮爱如 刘瑞锋 |
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| 作者单位： | 1．同济大学 地下建筑与工程系/岩土工程重点实验室， 上海 200092；2.安徽建筑工程大学 土工工程系， 合肥 230022 |
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| 基金项目： | 国家自然科学基金资助项目（No. 50578120）。 |
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| 摘 要： | 随着上海地下空间的开发利用，冻结法越来越广泛地用于隧道建设中。为了避免冻结法施工中可能产生的地质灾害问题，有必要对上海软土地区的土体冻融过程中物理力学性能进一步地研究。通过对上海软土某工程3种不同的土样原状土、一次冻融土、二次冻融土进行不同状态下土力学试验，得到了土体在二次冻融循环作用下物理力学特征的变化规律。研究结果对隧道的设计提供了有价值的参考。
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| 关 键 词： | 冻结法 二次冻融 冻土 无侧限抗压强度 |
| 收稿时间： | 2006-03-27 |
Study on uniaxial compressive strength of Shanghai soils
under secondary freeze-thaw action |
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| XIAO Zhong-hua,HU Xiang-dong,PI Ai-ru,LIU Rui-feng.Study on uniaxial compressive strength of Shanghai soils
under secondary freeze-thaw action[J].Rock and Soil Mechanics,2006,27(Z1):497-500. |
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| Authors: | XIAO Zhong-hua HU Xiang-dong PI Ai-ru LIU Rui-feng |
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| Institution: | 1. Department of Geotechnical Engineering Tongji, Key Laboratory of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
2. Department of Civil Engineering, Anhui Institute of Architecture& Industry, Hefei 230022, China |
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| Abstract: | With the development of underground space in Shanghai, the ground freezing method is more and more widely used in tunnel construction. In order to avoid the problems of geological disaster which may happen in the freezing construction, it is necessary to do more researches on the physico-mechanical characters of Shanghai soft soil under freezing and thawing action. The characters of three kinds of soils from a certain project in different states (original state, freeze-thaw state, secondary freeze-thaw), are stadied; and the change rules of soil characters under secondary freeze-thaw action are educed. The results will be beneficial to the safety of the tunnel construction. |
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| Keywords: | freezing method secondary freeze-thaw frozen soil uniaxial compressive strength |
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