| 软土卸荷次回弹变形特性研究 |
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| 引用本文： | 常 青,余湘娟,董卫军.软土卸荷次回弹变形特性研究[J].河海大学学报(自然科学版),2006,34(4):444-446. |
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| 作者姓名： | 常 青 余湘娟 董卫军 |
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| 作者单位： | 河海大学岩土工程研究所,江苏,南京,210098 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 对汕揭高速公路BK0 250右断面的淤泥土样进行了蠕变试验研究,确定了原状土和重型土的主次回弹变形的划分方法.研究结果表明:当回弹比相同、最大预压荷载不同时,次回弹系数相同;当最大预压荷载相同、回弹比不同时,次回弹系数随回弹比的增大而增大.
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| 关 键 词： | 淤泥 卸荷 回弹比 次回弹系数 |
| 文章编号： | 1000-1980（2006）04-0444-03 |
| 收稿时间： | 2005-12-19 |
| 修稿时间： | 2005-12-19 |
Study on secondary resilience deformation of soft soil under unloading |
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| CHANG Qing,YU Xiang-juan,DONG Wei-jun.Study on secondary resilience deformation of soft soil under unloading[J].Journal of Hohai University (Natural Sciences ),2006,34(4):444-446. |
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| Authors: | CHANG Qing YU Xiang-juan DONG Wei-jun |
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| Institution: | Geotechnical Research Institute of Hohai University, Nanjing 210098, China |
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| Abstract: | Creep experiment was performed on silt samples from the right section BK0 250 of Shantou-Jieyang Expressway.The method for classification of the primary and secondary resilience deformation of undisturbed soil and disturbed soil was determined by analysis of the experimental result.It is concluded that the coefficients of secondary resilience of the two soil samples are the same under the condition that the resilience ratios of the soil samples are the same,while the maximum pre-loads are different;otherwise,if the resilience ratios are different,the coefficients of secondary resilience of the two soil samples increase with the increase of the resilience ratios under the same maximum pre-loads. |
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| Keywords: | silt unloading resilience ratio coefficient of secondary resilience |
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