Erosion of cohesive sediment by flow is a very complicated phenomenon occurring worldwide. Understanding and modeling of the
erosion process are important for many issues such as the breaching of embankments, riverbank stability, siltation of harbors
and navigation channels, service life of reservoirs, distribution of (heavy metal) pollutants and water quality problems.
In the last few decades, numerous studies have been done on the erosion of cohesive sediment by flow. Nevertheless, the factors
affecting the erosion resistance of cohesive sediment are still not fully understood and the knowledge of the physics of cohesive
sediment erosion is inadequate, as a result the mathematical modeling of this erosion is far from satisfactory. In this paper
an overview of the studies on the erosion resistance, erosion threshold and the erosion rate of cohesive sediment by flow
is presented. The outcomes achieved so far from the studies and the existing problems have been analyzed and summarized, based
on which recommendations are proposed for future research.
Supported by the National Key Technology R&D Program of China (Grant Nos. 2006BAC14B02 and 2006BAB05B03) and the National
Basic Research Program (973 Program) of China (Grant No. 2007CB714106) 相似文献
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