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规则波作用下桩基透空型防波堤的冲刷研究
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作者 黄姗姗 王振鲁 +2 位作者 潘新颖 梁丙臣 杨博 《水利水运工程学报》 2024年第5期103-112,共10页
基于FLOW-3D软件,开展了3组波高、3组波周期、5种挡板形式条件下的冲刷模拟试验,分析了不同工况下防波堤结构流场变化、海床冲刷地形变化。研究结果表明:在规则波作用下,波高变化对防波堤结构流场变化及海床冲刷地形变化影响程度较小。... 基于FLOW-3D软件,开展了3组波高、3组波周期、5种挡板形式条件下的冲刷模拟试验,分析了不同工况下防波堤结构流场变化、海床冲刷地形变化。研究结果表明:在规则波作用下,波高变化对防波堤结构流场变化及海床冲刷地形变化影响程度较小。波周期则与防波堤结构周围的泥沙冲刷效率呈正相关,且影响程度较大。不同的波周期会导致挡板开孔方式对海床冲刷地形的变化呈现不同的规律,当波周期为1.5 s时,随着挡浪板开孔率的增加、挡板下部面积的增大,冲刷坑面积及体积逐渐减小,且呈线性分布;当波周期为2.0、2.5 s时,冲刷面积及体积呈二次曲线分布。 展开更多
关键词 基透空式防波堤 挡浪板 群桩冲刷
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Design and construction of scour protection for deep-water group pile foundation structures of two pylons in the Sutong Bridge project
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作者 He Ping Guan Yijun Zhang Xiongwen Zhang Qun Zhou Jianhua 《Engineering Sciences》 EI 2009年第1期37-44,共8页
Sutong Bridge,as a world-record cable-stayed bridge with its main span exceeding 1 000 m constructed in Yangtze River estuary region in China,is located at a site with complicated hydrologic conditions and poor geotec... Sutong Bridge,as a world-record cable-stayed bridge with its main span exceeding 1 000 m constructed in Yangtze River estuary region in China,is located at a site with complicated hydrologic conditions and poor geotechnical conditions and therefore,scour protection will be a decisive factor for ensuring smooth and successful construction of this bridge.This paper,starting from structural description of deep-water group pile foundation,analyzes impact to the bridge safety introduced by scour and its protection and further presents different solutions of scour protection for foundation structures of this bridge. 展开更多
关键词 Sutong Bridge deep-water group piles scour protection DESIGN CONSTRUCTION
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