EXPERIMENTAL STUDY ON THE EFFECT OF BIOFILM FOR BED MUD EROSION IN ANNULAR FLUME
EXPERIMENTAL STUDY ON THE EFFECT OF BIOFILM FOR BED MUD EROSION IN ANNULAR FLUME
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DOI：
10.2208/prohe.50.1315
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
Ryoichi Watanabe;K. Yamasaki;T. Kusuda
中科院分区：
文献类型：
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作者：
Ryoichi Watanabe;K. Yamasaki;T. Kusuda
细颗粒粘性泥沙的侵蚀预报是土木工程师的重要信息。然而，为了计算实际的侵蚀量，必须考虑在床泥表面上形成的生物膜的影响。河口底泥生物膜的形成对河口的侵蚀现象有重要影响。因此，许多研究者从不同的角度对这一问题进行了研究。在福冈大学水环境系统研究室的环形水槽中进行了实验。本文介绍了环形水槽中生物膜对细颗粒粘性泥沙冲刷效果的试验研究结果。在调节光照和水温的条件下，研究了底泥生物膜与初始侵蚀速率的关系。生物膜厚度最大为2mm，最小为0.5mm。本研究旨在通过实验研究生物膜对底泥侵蚀量的影响
The prediction of fine cohesive sediment erosion is important information for civil engineers. However, to calculate an actual amount of erosion, the necessity for considering the effect by biofilm formed on the bed mud surface has been caused. Biofilm formed on the bed mud has a major influence on the erosion phenomenon in estuaries. Therefore, many researchers are grappling from various angles with this problem.Experiments were carried out in an annular flume at the Water and Environmental System Laboratory of Fukuoka University. Results of an experimental study on the effect of biofilm for fine cohesive sediment erosion in the annular flume are described. The relation between biofilm on the bed mud and the initial rate of erosion were conducted under the condition to adjust the amount of light and water temperature. The thickness of biofilm reached about 2mm in the maximum and 0.5mm in the minimum. In this study, it has aimed to clarify how the amount of bed mud erosion changes by the biofilm experimentally