Experimental Study on Clear Water Scour around Bridge Piers
This study analyzed the characteristics of bridge scoured by clear water according to 14 groups of laboratory experiments.The formulation of critical velocity based on historical equations of clear water scour was concluded for the test circumstances in laboratory.The experimental conditions include the variation of flow velocity,sediment cover depth,and diameter of bridge pier/bases.The erosion status prior to the maximum scour depth was recorded by a pinhole camera,and,in general,the equilibrium scour depth was reached after 24 hours.The maximum scour depth increases as the sand cover depth decreases.As the same sediment depth,the fast flow velocity will induce the deep scour depth with respect to the slow flow velocity.The same result can be observed for the large diameter of pier (or base) versus the small one.The maximum scour depths in the front of the pier are always deeper than that behind the pier.
Bridge Scour Clear Water Bed Load
Y.-M.Hong Min-Li Chang H.-C.Lin Y.-C.Kan Chi-Chang Lin
Department of Design for Sustainable Environment, MingDao University No.369 Wen-Hua Road, Peetow, Ch Department of Central Region Engineering Office, Taiwan Water Corporation Taichung 404, Taiwan Department of Health Risk Management, China Medical University No.91 Hsueh-Shi Road, Taichung 40402, Department of Communications Engineering, Yuan Ze University No.135 Yuan-Tung Road, Chung-Li, Taoyua Department of Civil Engineering, National Chung Hsing University, No.250, Guoguang Road, Taichung 40
国际会议
台湾
英文
162-166
2011-12-11（万方平台首次上网日期，不代表论文的发表时间）