| 减P路径下饱和软粘土应力应变性状的试验研究 |
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| 引用本文： | 张荣堂,陈守义. 减P路径下饱和软粘土应力应变性状的试验研究[J]. 岩土力学, 2002, 23(5): 612-617 |
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| 作者姓名： | 张荣堂 陈守义 |
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| 作者单位： | 1．华中科技大学土木工程学院，湖北 武汉 430074； 2．中国科学院武汉岩土力学研究所，湖北 武汉 430071 |
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| 基金项目： | 国家自然科学基金项目资助(19572076) |
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| 摘 要： | 对汉口某地的淤泥质粘土进行了一系列应力路径试验。试验表明，饱和软粘土的应力应变性状与应力路径密切相关，在各种减P应力路径下的应力比与轴应变之间均存在着良好的双曲线关系，据此，建立了一个和应力路径有关的归一化应力应变双曲线模型。分析了排水试验中的体变特性和不排水试验下的孔压变化特性。
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| 关 键 词： | 减P路径 应力-应变性状 试验研究 |
| 文章编号： | 1000-7598-(2002)05-0612-05 |
| 收稿时间： | 2002-03-21 |
| 修稿时间： | 2002-03-21 |
An experimental study on stress-strain behavior of soft clay along decreasing average normal stress |
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| ZHANG Rong-tang CHEN Shou-yi. An experimental study on stress-strain behavior of soft clay along decreasing average normal stress[J]. Rock and Soil Mechanics, 2002, 23(5): 612-617 |
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| Authors: | ZHANG Rong-tang CHEN Shou-yi |
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| Affiliation: | 1. College of Civil Eng. and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China ; (2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
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| Abstract: | A series of stress path tests are carried out for undisturbed mucky clay samples from Hankou. The tests results indicate that there is a good hyperbolic connection between the axial strain and stress ratio R in those decreasing p path tests, then a normalized hyperbolic model of stress-strain is proposed for soils which undergo decreasing p path. Volume change behavior in drained tests and pore pressure characteristics in undrained tests are also described. |
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| Keywords: | decreasing p path behavior of stress-strain experimental research |
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