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Effects of Different Geometric Parameters of Complex Bridge Piers on Maximum Scour Depth: Experimental Study
| 题名： | Effects of Different Geometric Parameters of Complex Bridge Piers on Maximum Scour Depth: Experimental Study |
| 正文语种： | eng |
| 作者： | Habibeh Ghodsi;Mohammad Najafzadeh;Mohammad Javad Khanjani;Aliasghar Beheshti |
| 作者单位： | Dept. of Civil Engineering Faculty of Engineering Shahid Bahonar Univ. of Kerman P.O. Box 76169133 Kerman 7616913439 Iran;Dept. of Water Engineering Faculty of Civil and Surveying Engineering Graduate Univ. of Advanced Technology P.O. Box. 76315117 Kerman 7631818356 Iran;Dept. of Civil Engineering Faculty of Engineering Shahid Bahonar Univ. of Kerman P.O. Box 76169133 Kerman 7616913439 Iran;Dept. of Water Resources Engineering Ferdowsi Univ. of Mashhad P.O. Box 917751111 Mashhad 9177948974 Iran |
| 摘要： | This research experimentally investigated local scour depth around complex bridge piers in a clear-water condition. The term "complex pier" is used to define abridge pier composed of three different sections: a column, cap of pile, and group of pile. Eighty-two experiments were carried out using six types of complex pier models to understand the impacts of the pile cap longitudinal extension from column, arrangement (or configuration) of pile group, extension occurring upstream of pile group, and thickness of pile cap. Through the experiments, a mathematical relationship between the upper limit of the pile cap undercut elevation and pile cap thickness was presented. In fact, the proposed formulation aimed to assess the undercutting elevation of pile cap. It was found that the variation of pier-foundation geometry significantly affected the maximum scour depth. The result showed that increasing pile cap thickness thereby decreased the pile cap undercutting elevation. When the piles number in line with flow increased, the maximum scour depth decreased. |
| 出版年： | 2021 |
| 期刊名称： | Journal of Waterway, Port, Coastal and Ocean Engineering |
| 卷： | 147 |
| 期： | 5 |
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