淤泥质海岸河口悬沙回淤模型相似律探讨

在盐水条件下粘性细颗粒泥沙将发生絮凝，基本沉降单元不再是单颗粒泥沙，而是絮团，床面泥沙的起动悬扬特性也不同于粗颗粒泥沙本文主要探讨模拟近海条件下淤泥质港口航道悬沙回淤模型试验相似律，根据细颗粒泥沙动水条件下絮凝沉降特点，提出需要满足的相似条件和相关系，并将之用用皇连云港，厦门港等物理模型，取得较好效果。

Study on Model Similarities of Silation Experimcnts with Suspended Sediments at Silty Estuary and Coast

nder the salt water condition,fine coheeive sediments will flocculate,and the basic settling unit is a floc mass instead of an individual grain and the bed is different from coarse sediments in initiation and resuspension characteristics.This paper deals mainly with the similarity laws for siltation model tests of harbor and waterways at silty estuaries and coasts. According to the flocculating and settling properties of fine sediments in moving water,some sim ilarity relationships are proposed and used in th physical models for Xiamen harbor, etc.,and good results are obtained.