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原文传递 Scour around Submerged Spur Dikes with Flexible Mattress Protection

题名：	Scour around Submerged Spur Dikes with Flexible Mattress Protection
其他题名：	Bakhtiari,M.,S.M.Kashefipour,M.Ghomeshi,and J.Zahiri.2012."Effect of geometric parameters of spur dike and depth-placed riprap on its failure threshold in a 90°flume bend."Ecol.Environ.Conserv.18(3):479-484.
正文语种：	英文
作者：	Wei Huang
关键词：	Local scour;Scour mechanism;Flexible mattress;Spur dikes;Experimental data;Waterway regulation
摘要：	Flume experiments examining the effects of a flexible mattress on bed scour around spur dikes were conducted. Results showed that scour induced subsidence damage to the flexible mattress. If the width of flexible mattress, B, was insufficient, then failure of the spur dike may occur. Results also revealed that (1) scour depth decreased as the area of the protective domain around the spur dike increased (e.g., it reduced 30％, from 20 to 14 cm, as the width B increased from 0 to 0.35 m), and (2) higher approaching velocities resulted in deeper scour holes. On the basis of the experimental data and dimensional regression analysis, empirical formulas were proposed for calculating scour depth and the extent of the scour hole. The formulas were then used to obtain the optimum flexible mattress width.
出版年：	2018
论文唯一标识：	P-108Y2018V144N05006
英文栏目名称：	TECHNICAL PAPERS
doi：	10.1061/(ASCE)WW.1943-5460.0000466
期刊名称：	Journal of Waterway, Port, Coastal, and Ocean Engineering
拼音刊名(出版物代码)：	P-108
卷：	144
期：	05
页码：	49-62