| 天津吹填软土应力应变归一化特性研究 |
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| 引用本文： | 杨爱武, 杜东菊, 周金, 韩飞. 2010: 天津吹填软土应力应变归一化特性研究. 工程地质学报, 18(S1): 17-21. |
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| 作者姓名： | 杨爱武 杜东菊 周金 韩飞 |
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| 作者单位： | 1.天津城市建设学院 土木工程系 天津 300381;;2.天津市软土工程特性与工程环境重点实验室 天津 300381 |
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| 基金项目： | 天津市科技发展计划项目(04311381);天津市科技发展计划重点科技攻关项目(06YFSZSF04000);科技创新能力与环境建设平台项目(06SYSYJC14900) |
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| 摘 要： | 天津吹填软土应力应变关系为应变硬化型,可用kondner双曲线进行拟合。本文在此基础上开展了四种归一化因子在天津吹填软土固结不排水条件下应力应变特性中的应用,并建立了归一化方程。研究表明:以四种归一化因子进行归一化时,其中主应力差渐近值(1-3)ulti作为归一化因子时,归一化程度最高,3作归一化因子时,归一化程度最低,(3)n作为进行归一化因子时,n取0.55～0.65较为合适。
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| 关 键 词： | 吹填软土 应力应变 归一化因子 应变硬化 |
| 收稿时间： | 2010-05-28 |
| 修稿时间： | 2010-06-28 |
NORMALIZED STRESS-STAIN BEHAVIOR OF TIANJIN SOFT DREDGER SOIL |
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| YANG Aiwu, DU Dongju, ZHOU Jin, HAN Fei. 2010: NORMALIZED STRESS-STAIN BEHAVIOR OF TIANJIN SOFT DREDGER SOIL. JOURNAL OF ENGINEERING GEOLOGY, 18(S1): 17-21. |
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| Authors: | YANG Aiwu DU Dongju ZHOU Jin HAN Fei |
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| Affiliation: | 1.Department of Civil Engineering, Tianjin Institue of Urban Construction, Tianjin 300381;;2.Key Laboratory of Soft Soil Engineering Character and Engineering Environment of Tianjin, Tianjin 300381 |
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| Abstract: | The stress-strain relations of Tianjin soft dredger soil is strain hardening,which can be fitted by kondner hyperbolic curve.Based on this,The paper used four kinds of normalization factors to study stress-strain characteristics of CU test of Tianjin soft dredger soil,and also established the normalized equation.The research indicated that using thses four kinds of normalization factors to carry on normalization,the normalized degree is highest when used (1-3)ulti as normalization factor,when used 3 as normalization factor,the normalized degree is lowest,while used (3)n as normalization factor,n takes 0.55～0.65 appropriately. |
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| Keywords: | Soft dredger soil Stress-stain Normalized factor Strain hardening |
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