Effects of sediment on the dynamic pressure of water and sediment on dams

DU Xiuli; WANG Jinting; J. K. Hung

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Effects of sediment on the dynamic pressure of water and sediment on dams

机译：泥沙对大坝水沙动压的影响

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After a reservoir has been in operation for a period of time, a sediment layer is likely formed before the dam. Since studies of the effects of sediment layers on the hydrodynamic pressures of impounded water and the aseis- mic responses of dam are few, the dynamic effect of sediment may be applied neither in the seismic design of new dams nor in the assessment of earthquake safety of existing dams. However, a common practice of the action of sediment layers And foundation is based on a partial energy absorption Boundary. It is shown that during a vertical harmonic Ground motion, the sediment layer could alter the natural Frequencies of reservoir.

机译：在水库运行一段时间后，可能在大坝之前形成沉积层。由于对沉积物层对蓄水的水动力压力和大坝的地震响应的影响的研究很少，因此，沉积物的动力作用既不能用于新大坝的抗震设计，也不能用于评估大坝的地震安全性。现有的水坝。但是，泥沙层和地基作用的常规做法是基于部分能量吸收边界。结果表明，在垂直谐波地面运动过程中，沉积物层会改变储层的自然频率。

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《Chinese science bulletin》 |2001年第6期|p.521-523|共3页
作者
DU Xiuli; WANG Jinting; J. K. Hung;
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正文语种 eng
中图分类自然科学现状及发展;
关键词
dam; earthquake; hydrodynamic pressure;

机译：坝;地震;流体动压;

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Effects of sediment on the dynamic pressure of water and sediment on dams

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