| 双折线形体变控制的三轴试验研究 |
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| 引用本文： | 陈默子,周星辰.双折线形体变控制的三轴试验研究[J].河北工程大学学报,2018,35(3):17-22. |
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| 作者姓名： | 陈默子 周星辰 |
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| 作者单位： | 河海大学岩土力学与堤坝工程教育部重点实验室;河海大学江苏省岩土工程技术工程研究中心;上海市基础工程集团有限公司 |
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| 基金项目： | 国家自然科学基金资助项目（51278171，51778211）；中央高校基本科研业务费专项资金资助项目（2017B20614） |
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| 摘 要： | 通过控制最大排水体变的双折线形应变路径三轴试验,研究了控制排水条件对抗剪强度的影响。试验结果表明双折线形应变路径加载条件下,土体的峰值抗剪强度仅与受剪土样的最大排水体变相关,两者近似呈线性关系;在双折线形应变路径试验剪切全程中,试样都不会达到临界状态;体变与剪应变对于试样的剪切特性影响与剪应变水平有关。
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| 关 键 词： | 双折线形 排水条件 抗剪强度 应变路径 临界状态 |
| 收稿时间： | 2018/2/28 0:00:00 |
Experimental study of triaxial test controlled by double fold linear volumetric strain |
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| Authors: | CHEN Mozi and ZHOU Xingchen |
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| Affiliation: | Key Laboratory of Geomechanics and Embankment Engineering of Ministry of Education, Hohai University, Nanjing 210098, China;Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University, Nanjing 210098, China and Shanghai Foundation Engineering Group Co., Ltd, Shanghai 200082, China |
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| Abstract: | The study on the effect of drainage conditions on clay strength was carried out with double fold linear strain path triaxial test controlled by maximum drainage volumetric strain. The results show that under the condition of double fold linear strain path,the peak shear strength is merely linear to the maximum drainage volumetric strain of soil. In the whole test the sample does not reach the critical state. The effect of volumetric strain and shear strain on shear characteristic are related to shear strength level. |
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| Keywords: | double fold linear drainage conditions shear strength strain path critical state |
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