防波堤同步施工条件航道备淤深度预测

Prediction of the depth reserved for sedimentation under synchronous construction of breakwater and waterway

针对东营港某港区在防波堤建设和航道疏浚施工同步进行的共同作用下的备淤深度问题,建立工程海域的潮流泥沙数学模型,对该模型进行了波浪、潮流、泥沙及地形冲淤验证。在数学模型的基础上,将施工过程分解为若干节点分别建模计算,并结合施工结束至竣工验收的不同时间分期叠加统计。得到同步施工期间航道的回淤规律并预测备淤深度。该研究为航道工程的顺利实施提供技术支持,也为解决此类问题提供参考。

A numerical model which contains wave,tidal flow and sediment is established and the model is verified by wave,tidal current,sediment and siltation changes of topography,to solve the problem of the depth reserved for sedimentation under synchronous construction of breakwater and waterway at a port area of Dongying port.On the basis of the mathematical model,the construction process is decomposed into several nodes for modeling and calculation,and the statistics of different time stages from the end of construction to completion acceptance are combined.We gain the rule of waterway siltation during the period of synchronous construction and prediction the depth reserved for sedimentation.The above studied achievements can not only provide a technical support for the waterway channel project,but also offer positive basis for reference for similar study.