围堤工程中潮流对抛石漂移的影响研究

Influence of tidal flow on riprap drift in dike construction

在围堤施工过程中,由于潮流作用抛石会发生漂移,这将严重影响抛石质量并造成大量抛石浪费。以连云港港区某围堤工程项目为依托,基于数学模型和理论公式研究了该围堤工程施工区域及邻近海域水动力特性,探究了围堤工程对水动力的影响机制,分析了潮流作用下抛石的迁移机制。同时开展了工程现场的抛石位移试验和同步水文观测,并对抛石位移计算方法进行率定和验证。研究成果可为类似围堤工程的抛石施工提供参考。

During the construction of a dike,the riprap will drift due to the tidal current,which will seriously affect the quality of riprap and cause a lot of waste of riprap material.Based on the construction of a dike in Lianyungang Port Area,the hydrodynamic characteristics of the construction area of the dike and the adjacent sea area are studied based on mathematical modeling and theoretical formulae,the influence mechanism of the dike on the hydrodynamics is explored,and the migration mechanism of riprap under the action of tidal current is analyzed.At the same time,the riprap drift test and synchronous hydrological observation were carried out on the project site,and the calculation method of riprap drift was calibrated and verified.The research results may provide suggestions for riprap construction of similar dikes.