| 剑桥模型与统一硬化模型对超固结土特性描述的对比分析 |
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| 引用本文： | 侯伟,姚仰平.剑桥模型与统一硬化模型对超固结土特性描述的对比分析[J].工业建筑,2011,41(9):18-23,140. |
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| 作者姓名： | 侯伟 姚仰平 |
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| 作者单位： | 北京航空航天大学交通科学与工程学院,北京,100191 |
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| 基金项目： | 城市地下空间防水灾技术研究(07科外03) |
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| 摘 要： | 在深入研究修正剑桥模型和统一硬化模型（UH模型）基本特性的基础上,揭示模型描述超固结土特性的机理。对于超固结土,修正剑桥模型的预测曲线存在突变,不能很好地模拟土体连续、渐近的变形过程;对于重超固结土,模型预测的排水路径条件下的峰值强度很高,与实测结果偏差较大。修正剑桥模型不能模拟真三轴试验的应力-应变关系。UH模型的参...
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| 关 键 词： | 超固结 弹-塑性 修正剑桥模型 统一硬化模型 |
ANALYSIS IN BEHAVIORS OF OVER-CONSOLIDATED CLAYS DESCRIBED BY CAM-CLAY MODEL AND UNIFIED HARDENING MODEL |
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| Hou Wei Yao Yangping.ANALYSIS IN BEHAVIORS OF OVER-CONSOLIDATED CLAYS DESCRIBED BY CAM-CLAY MODEL AND UNIFIED HARDENING MODEL[J].Industrial Construction,2011,41(9):18-23,140. |
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| Authors: | Hou Wei Yao Yangping |
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| Affiliation: | Hou Wei1 Yao Yangping2(1.National Academician & Masters Research Office,BGI Engineering Consultants Ltd,Beijing 100038,China,2.Department of Civil Engineering,Beihang University,Beijing 100191,China) |
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| Abstract: | Based on researching the features of the modified Cam-clay model and UH model,the mechanism of model describing the behaviors of the over-consolidated(OC) clays is revealed.For the OC clays,the curves predicted by the modified Cam-clay model have abrupt changing points,so the model cannot model continue and gradual changing process well.For the heavy OC clays,the predicted peak strength is rather higher than test data under the drained condition.The model cannot describe the stress-strain relationships in t... |
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| Keywords: | over-consolidation elasto-plasticity modified Cam-clay model UH model |
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