| An Experimental Study on Wave-Induced Dynandc Stresses in Seabed |
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| 作者姓名： | S. C. Chang L. K. Chien J G. Lin Y. F. Chiu |
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| 作者单位： | [1]Departmeat of Harbor and River Engineering,National Taiwan Ocean University, Taiwan, China [2]Harbor and Marine Technology Center, Taiwan, China |
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| 基金项目： | This research was financially supported by the National Science Council, Taiwan under the project entitled ＂The Study of the Dynamic Behavior of Foundation Soil beneath Nearshore structures under Wave Loading Action （I）＂ with the project number of NSC-91-2211-E-019-013 |
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| 摘 要： | A series of hydraulic model tests with horizontal movable seabed under regular wave actions have been carried out to investigate the dynamic interactions between water waves and seabed soil. Seabed dynamic stresses from experiments are, tound to differ from theoretical resuhs. The response of p0 in permeable seabed has a small decay and phase shift to the nonlinear wave actions, and the dynamic stresses, σs/p0, σh/p0 and u/p0, contain different phase shift characteristics. Such phenomena will strongly affect the dynamic stress path in seabed. If the phase shifts of σs. and σh are neglected, the stress path will become a straight line; otherwise, it will become an elliptical curve. In phase shift cases, the long axis of the p - q diagram will be shortened when the depth increases, and the short axis will become longer when the phase shift increases. For the p＇ - q＇ diagram, the larger the phase lag of u, the longer the short axis. Relative results offer useful information for the analysis of seabed stability.
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| 关 键 词： | 海洋动力学 波浪 活动海床 水压模型 |
| 收稿时间： | 2005-02-19 |
| 修稿时间： | 2005-10-16 |
An Experimental Study on Wave-Induced Dynandc Stresses in Seabed |
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| S. C. Chang L. K. Chien J, G. Lin Y. F. Chiu.An Experimental Study on Wave-Induced Dynandc Stresses in Seabed[J].China Ocean Engineering,2006,20(1):27-44. |
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| Authors: | S;C;Chang;L;K;Chien;J ;G;Lin;Y;F;Chiu |
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| Abstract: | |
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| Keywords: | wave-induced dynamic stresses movable seabed hydraulic model test stress path |
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