| 钱江通道段河床最大冲刷深度的综合分析 |
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| 引用本文： | 史英标,柳崇敏,曹颖,杨元平.钱江通道段河床最大冲刷深度的综合分析[J].泥沙研究,2011(4). |
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| 作者姓名： | 史英标 柳崇敏 曹颖 杨元平 |
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| 作者单位： | 1. 浙江省水利河口研究院浙江省河口海岸重点实验室,浙江杭州,310020
2. 杭州市公路管理局,浙江杭州,310004 |
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| 基金项目： | 国家自然科学基金资助项目(10772163); 水利部公益性行业科研专项(201101056); 浙江省重点科技创新团队建设(2010R50035) |
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| 摘 要： | 钱江通道位于钱塘江河口的强涌潮区域,在洪潮水动力作用下河床冲淤剧烈.极端水动力作用下河床的冲刷深度是过江隧道工程建设的关键技术问题之一.本文基于河床演变分析、动床数值模拟、动床物理模型试验、沉积物分析等手段进行研究.首先建立了钱江通道过江隧道河段洪、潮水流冲刷深度的预测模型,经钱塘江河口的实测地形、水流泥沙及河床冲淤等资料的验证.在此基础上预测了过江隧道断面在极端水动力作用下最大冲刷深度,并与沉积物分析方法进行比较,四种研究方法所得的结果定性定量基本合理,进一步表明了预测模型的可靠性,预测的最大冲刷深度可为过江隧道的合理埋设提供参考依据.
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| 关 键 词： | 河相关系 动床数模 动床物模 沉积学 极端水动力 冲刷深度 钱塘江河口 预测 |
Study of scour depth in river reach of Qianjiang tunnel across Qiantang Estuary |
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| SHI Ying-biao
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LIU Chong-min
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CAO Ying
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YANG Yuan-ping.Study of scour depth in river reach of Qianjiang tunnel across Qiantang Estuary[J].Journal of Sediment Research,2011(4). |
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| Authors: | SHI Ying-biao LIU Chong-min CAO Ying YANG Yuan-ping |
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| Affiliation: | SHI Ying-biao1,LIU Chong-min2,CAO Ying1,YANG Yuan-ping1(1.Zhejiang Institute of Hydraulics and Estuary,Hangzhou 310020,China,2.Highway Administration of Hangzhou,Hangzhou 310004,China) |
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| Abstract: | The Qiantang tunnel locates in the river reach with strong Qiantang bore.The sedimentation/scouring range in this reach usually reached 5 to 10 m under the action of the flood and tidal flows.The river bed scour depth is one of the key technical problems for the tunnel project across the Qiantang Estuary.In the paper,four prediction methods for the maximum scour depth of the river bed at the tunnel are set up based on the analysis of the hydraulic geometry of river channel,method of sedimentology,sediment m... |
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| Keywords: | Hydraulic geometry of river channel sediment mathematical model movable-bed physical model sedimentology method maximum scour depth Qiantang Estuary prediction |
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