潮汐河口治导线放宽率计算公式的参数取值

发布时间：2018-06-22 17:43

本文选题：航道整治 + 潮汐河口　；参考：《水运工程》2017年11期

【摘要】：受潮棱体蓄潮影响,潮汐河口整治工程往往需考虑一定的治导线放宽率。针对放宽率的计算目前已有诸多经验公式,其中潮差和治导工程蓄潮系数是公式中的两个重要参数,合理取值非常关键。从放宽率公式推导的基础公式出发,理论分析表明,公式中的潮差取为落潮流水位差更为合理;就治导工程蓄潮系数而言,现有文献提出的治导工程高、中潮位整治时分别取1.0和0.5过于简单。结合灌河口和长江口北槽航道整治工程案例分析表明,治导工程蓄潮系数不仅与整治建筑物高程有关,而且与整治工程平面布置形式密切相关,治导工程系数的取值部分情况下可采用经验公式计算取值,而复杂情况下建议结合数学模型或物理模型合理确定。
[Abstract]:There are many empirical formulas for the calculation of the relaxation rate in the tidal estuary regulation project. There are many empirical formulas for the calculation of the relaxation rate. Among them, the tide and the conductivity of the water storage coefficient are two important parameters in the formula, and the reasonable value is very critical. The analysis shows that the tidal difference in the formula is more reasonable for the fall of the tidal water level. In terms of the coefficient of water storage for the treatment and guide engineering, the governing engineering proposed by the existing literature is high, and 1 and 0.5 are too simple to be taken during the regulation of the middle tide level. The elevation of the building is related and closely related to the layout of the renovation project. In the case of the value of the engineering coefficient, it can be calculated by the empirical formula, and it is suggested that the mathematical model or physical model should be reasonably determined in the complex case.
【作者单位】：中交上海航道勘察设计研究院有限公司;
【分类号】：TV148.5;U617

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