IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 4 - HYDRO-ENVIRONMENT : Wave Erosion Characteristics of the No Vegetation Sandbag Structures
Wave Erosion Characteristics of the No Vegetation Sandbag Structures
Author : Wenxue Chen , Shuiwei Tan and Xiaosong Wang
The wave erosion characteristics of the sandbag structures are less studied, limiting its application in the riverside or shoreline. The wave erosion mechanism of the sandbag structures is studied in this paper, and the dimensionless erosion loss formula of the structures is deduced. Based on the t heoretical analysis, wave erosion experiment of no vegetation sandbag structures is carried out in a wave flume, and the experiment results show that: 1) when the wave erosion period is expressed with dimensionless value, the wave period has no effect on the wave erosion of the structures; 2) the larger the Apparent Opening Size (AOS) of the sandbag, the bigger the erosion loss of the sandbag structures; 3) wave height is the key factor affecting erosion loss of the structures, the higher the wave height, the bigger the erosion loss; 4) the wave erosion loss will be over 10%, when the structure is operated under the wave with height of 0.3m for about 4~6h, therefore, the structure should be properly protected from the wave erosion before the vegetation growth of the seeded bags.
File Size : 145,465 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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