天津港大沽沙航道施工期回淤研究

摘要

在淤泥质海岸开挖航道，其回淤的程度是能否建设成功的关键因素。为了研究天津港大沽沙航道施工期泥沙回淤特点和规律，在历年航道回淤监测资料的基础上，结合天津港主航道泥沙回淤研究成果，对大沽沙航道施工期回淤进行了系统的观测和研究，取得了大沽沙航道施工期各年的回淤量和回淤的平面分布、时间变化特点及航道回淤主要集中的部位。回淤情况基本与前期淤积预测结论一致，航道不会出现严重淤积情况的结论。%Siltation is the key factor of channel construction in the muddy coast. Based on the siltation data in the past years, the siltation of main channel in Tianjin Port was studied. The systematic observation and researches on siltation during construction of Dagu waterway were carried out. The quantity of back silting during construction in the past years, distribution characteristics, temporal variation and the main concentrated area were obtained. Siltation result shows that serious siltation will not occur at Dagu waterway, which is consistent with the early prediction.