| 混凝土坝动水压力与库水可压缩性效应 |
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| 引用本文： | 刘浩吾. 混凝土坝动水压力与库水可压缩性效应[J]. 水利水电科技进展, 2002, 22(2): 10-13 |
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| 作者姓名： | 刘浩吾 |
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| 作者单位： | 四川大学水利水电工程学院,四川,成都,610065 |
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| 摘 要： | 基于对 3座拱坝现场迫振实验的理论分析 ,论证了库水可压缩性对动水压力的放大效应及其实现条件 ;基于波传播理论提出了水库边界反射吸收参数的算法 ;论证了模型试验用于动水压力测试的局限性 .研究表明 ,高混凝土坝特别是高拱坝的抗震分析中在一定条件下应考虑可压缩性 ,但动水压力量值不会达到无限大
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| 关 键 词： | 混凝土坝 抗震 动水压力 流固耦合 库水可压缩性效应 |
| 文章编号： | 1006-7647(2002)02-0010-04 |
| 修稿时间： | 2001-04-28 |
Hydrodynamic Pressure on Concrete Dams and Reservoir Water Compressibility Effect |
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| LIU Hao wu,et al. Hydrodynamic Pressure on Concrete Dams and Reservoir Water Compressibility Effect[J]. Advances in Science and Technology of Water Resources, 2002, 22(2): 10-13 |
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| Authors: | LIU Hao wu et al |
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| Abstract: | The result from field forced vibration experiments performed for three arch dams is analyzed theoretically, and the amplification effect of reservoir water compressibility on hydrodynamic pressure is evaluated. Based on the wave propagation theory, an algorithm is proposed for calculation of parameters of wave energy reflection and absorption at reservoir boundaries, and the limitation of model experiments applied to pressure test is demonstrated. It is concluded that compressibility should be taken into account in aseismic analysis for high arch dams, especially for high concrete dams, while the hydrodynamic pressure would not be infinity. |
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| Keywords: | fluid structure coupling earthquake resistance of concrete dams hydrodynamic pressure reservoir water compressibility effect forced vibration experiment |
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