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WATERWAY FOR A BRIDGE IN MEANDERING AND BRAIDING FLOOD PLAIN OF A RIVER-SOME CASE STUDIES
| 题名： | WATERWAY FOR A BRIDGE IN MEANDERING AND BRAIDING FLOOD PLAIN OF A RIVER-SOME CASE STUDIES |
| 正文语种： | 英文 |
| 作者： | SK MAZUMDER; SUNIL BAGDE |
| 作者单位： | Former AICTE Era. Prof. of Civil Engg., DCE (now DTU) Former GM/Adviser, ICT Pvt. Ltd. New Delhi,; GM, ICT Pvt. Ltd., New Delhi |
| 关键词： | bridge；distribution；raid；flood；mean；iter；exceed；water；ussing；process |
| 摘要： | Sometimes a bridge engineer is compelled to construct bridges on the wide flood plain of meandering/braided rivers where the flood plain width far exceeds Lacey's regime width. Underestimation of waterway and scour may result in failure of a bridge, loss of properties and outflanking of bridge. Overestimation of waterway, on the other hand, will not only increase the cost of the bridge, it will also provide an opportunity to the river to play in its meandering/braiding belt under the bridge resulting in non-uniformity of flow distribution which may result in high scour under some of the bridge spans and silting in some others. After briefly discussing the fundamentals of meandering and braiding processes, authors have made an attempt to develop some important hydraulic criteria as well as cost criteria for fixing the waterway of bridges constructed in meandering/braiding flood plains. Waterway for three important bridges on rivers Ganga, Yamuna and Brahmaputra have been illustrated under case study. |
| 出版年： | 2019 |
| 期刊名称： | Indian Highways |
| 卷： | 47 |
| 期： | 3 |
| 页码： | 11-19 |
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