| 不同应力路径下饱和粘性土CU试验研究 |
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| 引用本文： | 孙伟,梅国雄,宰金珉.不同应力路径下饱和粘性土CU试验研究[J].建筑科学,2010,26(1). |
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| 作者姓名： | 孙伟 梅国雄 宰金珉 |
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| 作者单位： | 南京工业大学土木工程学院,南京,210009 |
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| 基金项目： | 国家自然科学基金资助项目(No.50608038) |
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| 摘 要： | 利用GDS多功能三轴仪对饱和粘性重塑土分别进行了不同K0状态下的CU试验和K0=0.7时不同围压状态下的CU试验,探讨不同应力路径下粘性土的变形和强度特性。试验表明:不同应力路径下的土的应力—应变关系都呈曲线形态相似的非线性应变硬化型;随着固结应力比K0的增加,应力—应变关系曲线初始坡度逐渐由缓变陡;饱和粘性土不排水试验中:ε3=(1/(1-ε1))~(1/2)-1。
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| 关 键 词： | CU试验 不同K0状态 饱和粘性土 应力路径 轴向应变 径向应变 |
Study of Saturated Clay with Consolidated Undrained Triaxial Test in Different Stress Paths |
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| SUN Wei,MEI Guo-xiong,ZAI Jin-min.Study of Saturated Clay with Consolidated Undrained Triaxial Test in Different Stress Paths[J].Building Science,2010,26(1). |
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| Authors: | SUN Wei MEI Guo-xiong ZAI Jin-min |
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| Affiliation: | College of Civil Engineering/a>;Nanjing University of Technology/a>;Nanjing 210009/a>;China |
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| Abstract: | The multifunction-GDS triaxial apparatus was used to do the consolidated undrained triaxial test for the remodeling saturated soil in different states of K0 and under different confining pressures when K_0=0.7.The differences and commons were found when the remodeling saturated soil was tested in different stress paths.The results show that the stress-strain curve shape appears similar to non-linear hardening in different stress paths;with consolidation stress ratio(K_0) increasing the initial slope of the ... |
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| Keywords: | consolidated undrained triaxial test different states of K_0 saturated clay stress path axial strain radial strain |
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