| 新疆宽浅变迁河流桥位河段壅水研究 |
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| 引用本文： | 胡江,严以新,杨胜发,周华君.新疆宽浅变迁河流桥位河段壅水研究[J].水科学进展,2007,18(2):198-203. |
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| 作者姓名： | 胡江 严以新 杨胜发 周华君 |
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| 作者单位： | 1.河海大学交通与海洋工程学院, 江苏, 南京, 210098; |
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| 基金项目： | 交通部西部建设重点科研项目 |
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| 摘 要： | 新疆宽浅动床河流水深小、比降大、水流急,河床容易冲刷。建桥后,由于桥位断面压缩而导致的壅水与一般冲积河流不同。通过概化动床模型试验,得出了新疆宽浅变迁河流桥位河段壅水计算公式。动床模型公式充分反映了这类河流壅水的特点,因而与实际情况较为符合。
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| 关 键 词： | 桥梁壅水 新疆宽浅变迁河流 动床模型 |
| 文章编号： | 1001-6791（2007）02-0198-06 |
| 收稿时间： | 2005-11-25 |
| 修稿时间： | 2006-04-05 |
Backwater at bridge constrictions of broad-shallow and shifting channels in Xinjiang |
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| HU Jiang,YAN Yi-xin,YANG Sheng-fa,ZHOU Hua-jun.Backwater at bridge constrictions of broad-shallow and shifting channels in Xinjiang[J].Advances in Water Science,2007,18(2):198-203. |
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| Authors: | HU Jiang YAN Yi-xin YANG Sheng-fa ZHOU Hua-jun |
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| Institution: | 1.College of Traffic & Ocean Engineering, Hohai University, Nanjing 210098, China;2.College of River & Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China |
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| Abstract: | The broad-shallow and shifting channels in Xinjiang have characteristics of shallow water depth,steep gradients,high flow velocity and easily scoured river bed.Its backwater,due to bridge constrictions,is different from that of alluvial channels.In this paper,a simple formula is developed for estimating backwater by generalized mobile-bed river engineering model experiment.As it reflects characteristics of the broad-shallow and shifting channels in Xinjiang,author's formula fits in with this kind of rivers preferably. |
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| Keywords: | backwater at bridge constrictions broad-shallow and shifting channels in Xinjiang mobile-bed river engineering model |
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