EROSION OF LAYERED SAND-MUD BEDS IN UNIFORM FLOW

Proceedings of the International Conference on Coastal Engineering

Hilde Torfs¹ 

[1] Belgian Fund for Collective Fundamental Research F.K.F.O., Hydraulics Laboratory, Katholieke Universiteit Leuven

关键词: erosion;    mud;    uniform flow;   

DOI  :  10.9753/icce.v24.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

In a laboratory flume the formation and erosion of stratified sand-mud beds in uniform flow was studied. The experiments showed that depending on the initial conditions of suspended sediment concentration and mixture composition, consecutive inputs of a mud/sand suspension will lead to the formation of a layered sediment bed. Peaks in the measured density profiles show the different layers and indicate a possible segregation of the sand due to differential settling. During the erosion of the stratified bed, the sediments are eroded layer by layer. This results in a sequence of suspended load (fines) and bed load (sand) transport phases.

【 授权许可】

Unknown