| 面板堆石坝变形计算的一种新型数值方法 |
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| 引用本文： | 赵之瑾,徐连民,祁德庆.面板堆石坝变形计算的一种新型数值方法[J].水电自动化与大坝监测,2005,29(6):49-51. |
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| 作者姓名： | 赵之瑾 徐连民 祁德庆 |
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| 作者单位： | 同济大学土木工程学院,上海市,200092 |
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| 摘 要： | 针对高面板堆石坝对变形控制要求高的问题，利用中井本构关系模型及其稳定、快速收敛的欧拉向后应力积分算法，在局部误差和整体误差都得到精确控制的情况下，用弹塑性有限元方法对面板堆石坝进行有限元分析计算。同时，提出了按设计阶段和施工阶段分别采用不同的方法确定模型参数，从而使得选取的模型参数尽可能反映工程实际，提高数值计算精度。
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| 关 键 词： | 混凝土面板堆石坝 弹塑性本构模型 数值计算 模型参数反演 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
New Approach to the Numerical Analysis of Concrete-faced Rock-fill Dams |
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| ZHAO Zhi-jin,XU Lian-min,QI De-qing.New Approach to the Numerical Analysis of Concrete-faced Rock-fill Dams[J].HYDROPOWER AUTOMATION AND DAM MONITORING,2005,29(6):49-51. |
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| Authors: | ZHAO Zhi-jin XU Lian-min QI De-qing |
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| Affiliation: | Tongji University, Shanghai 200092, China |
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| Abstract: | Aimed at the requirements for the deformation control of high concrete-faced rock-fill dams.the Nakai's constitutive model and a stable and fast convergent algorithm for the numerical integration of isotropic elasto-plastic models are used in the elasto-plasticity finite element calculation of the deformation of rock-fill dams under the precise control of local and global tolerance.It is proposed that the parameters of the model should be determined in different ways in the design stage and construction stage in order to reflect the practical situation of projects and improve the precision of numerical analysis. |
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| Keywords: | concrete-faced rock-fill dam elasto-plastic constitutive model numerical analysis back analysis of model parameters |
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