| 摘要: |
| 采用离心模型试验对碾压砼－面板堆石混合坝的应力变形特性进行了分析研究，表明了该新坝型在蓄水前后应力变形的一般规律。并将试验结果与试验过程有限元模拟结果进行了比较分析，验证了用于数值计算的数学模型。最后，用三维有限元方法分别计算了公伯峡混合坝和单一面板坝的应力变形。通过分析比较，揭示了这种新型面板坝在应力变形方面的优越性。 |
| 关键词: 混合坝，离心模型试验，有限元法，应力变形特性 |
| DOI： |
| 分类号:TV641.43 |
| 基金项目: |
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| A new structure type of face rockfill dam and research for its stress-strain behaviour |
|
Li Guoying, Shen Zhujiang
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Nanjing Hydraulic Research Institute
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| Abstract: |
| In this paper, the stress-deformation characteristics.of the roller compacted concrete-face rock fill blend dam is studied by centrifugal model test,and its general stress-deformation behaviour of this new type dam before and after retaining water are revealed. By comparing with the results of numerical analysis, the mathematical model for finite element analysis is demonstrated. Finally, the 3-D finite element methods are used respectively to calculate the stresses and deformations of Gongboxia blend dam and Gongboxia face rock fill dam. By comparison, the advantages in stress - strain characteristics of blend dam is revealed. |
| Key words: blend dam, centrifugal model test, finite element method,stress-strain characteristics, |
