Flume experiments on scour downstream of wood stream restoration structures

详细信息    查看全文

• 作者：Stefano Pagliara^a ; ^{s.pagliara@ing.unipi.it} ; Sahameddin Mahmoudi Kurdistani^b ; ^{s.m.kurdistani@unisalento.it}
• 关键词：Morphology ; Stream restoration ; Eco-friendly in-stream structures ; Hydraulic structures ; Grade-control structures ; GCSs ; Log-deflector ; Log-frame deflector ; Scour
• 刊名：Geomorphology
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：279
• 期：Complete
• 页码：141-149
• 全文大小：1847 K
• 卷排序：279

文摘

Scour morphology downstream of single log-frame deflector and double log-frame deflector were studied. Results showed that densimetric Froude number, drop height, height of the structure and the tailwater depth are the main parameters to predict the scour parameters. Results show, that a classification of morphology type can be done in function of the non-dimensional parameters Fd and Δy/hst. Comparing the results with Pagliara et al. (2015) data, depicts that in case of installing log-frame deflector never occurs scour hole close to the channel bank and just morphology Type C occurs.