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A platform for research: civil engineering, architecture and urbanism
Standard analysis method for riverbed deformation and estuary flood tide
The invention discloses a riverbed deformation and estuary flood tide standard analysis method which comprises the following steps: 1, investigating and collecting estuary landform and flood tide characteristics, and determining a relationship between riverbed deformation and the lowest water level of a key section; 2, determining the relationship between the riverbed deformation and the maximum rising tide flow of the entrance; 3, determining the relationship between the maximum rising tide flow change of the entrance and the highest water level change of the key section; and 4, determining the correlation between the flood recurrence period and the highest water level change value of the key section. By utilizing the method, the previous riverbed topographic condition is inverted through the change of the current situation and the previous key section lowest water level, and the change of the flood tide recurrence period under the current situation after the natural riverbed is greatly undercut is determined; a scientific basis is provided for major water safety problems such as reduction of river mouth flood discharge capacity and tide absorption capacity caused by riverbed deposition, review and evaluation of standard-exceeding floods and tides, operation safety and the like, technical support is provided for later scientific treatment, and social economic and environmental benefits are remarkable.
本发明公开了河床变形与河口洪潮标准分析方法，包括以下步骤：一是调查收集河口地形地貌和洪潮特性，确定河床变形与关键断面最低水位关系；二是确定河床变形与口门最大涨潮流量关系；三是确定口门最大涨潮流量变化与关键断面最高水位变化关系；四是确定洪水重现期与关键断面最高水位变化值相互关系。利用本发明方法，通过现状与先前关键断面最低水位的变化，反演出先前河床地形条件，确定天然河床大幅下切后，现状条件下洪潮重现期的变化，为河床淤积导致河口行洪能力与纳潮能力的减少等重大水安全问题、超标洪潮的复核、评价及运行安全等提供科学依据及后期的科学治理提供技术支持，社会经济和环境效益显著。
Standard analysis method for riverbed deformation and estuary flood tide
The invention discloses a riverbed deformation and estuary flood tide standard analysis method which comprises the following steps: 1, investigating and collecting estuary landform and flood tide characteristics, and determining a relationship between riverbed deformation and the lowest water level of a key section; 2, determining the relationship between the riverbed deformation and the maximum rising tide flow of the entrance; 3, determining the relationship between the maximum rising tide flow change of the entrance and the highest water level change of the key section; and 4, determining the correlation between the flood recurrence period and the highest water level change value of the key section. By utilizing the method, the previous riverbed topographic condition is inverted through the change of the current situation and the previous key section lowest water level, and the change of the flood tide recurrence period under the current situation after the natural riverbed is greatly undercut is determined; a scientific basis is provided for major water safety problems such as reduction of river mouth flood discharge capacity and tide absorption capacity caused by riverbed deposition, review and evaluation of standard-exceeding floods and tides, operation safety and the like, technical support is provided for later scientific treatment, and social economic and environmental benefits are remarkable.
本发明公开了河床变形与河口洪潮标准分析方法，包括以下步骤：一是调查收集河口地形地貌和洪潮特性，确定河床变形与关键断面最低水位关系；二是确定河床变形与口门最大涨潮流量关系；三是确定口门最大涨潮流量变化与关键断面最高水位变化关系；四是确定洪水重现期与关键断面最高水位变化值相互关系。利用本发明方法，通过现状与先前关键断面最低水位的变化，反演出先前河床地形条件，确定天然河床大幅下切后，现状条件下洪潮重现期的变化，为河床淤积导致河口行洪能力与纳潮能力的减少等重大水安全问题、超标洪潮的复核、评价及运行安全等提供科学依据及后期的科学治理提供技术支持，社会经济和环境效益显著。
Standard analysis method for riverbed deformation and estuary flood tide
河床变形与河口洪潮标准分析方法
YANG SHOULONG (author) / HE WENXING (author) / CHEN WENQUN (author) / XUE LONGHUI (author) / XIA HOUXING (author) / LIANG YUE (author) / FENG WEIXIAO (author) / WANG XINGLI (author) / WANG XINQIANG (author) / WANG LELE (author)
2023-06-23
Patent
Electronic Resource
Chinese
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