Experimental Analysis on the Behavior of Alternate Bars in a Channel with a Spur Dike

C. Jang, Youngjin Song
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引用次数: 1

Abstract

Department of Civil Engineering, Korea National University of Transportation, Chungju 27469, KoreaReceived 11 February 2016, revised 8 March 2016, accepted 20 March 2016, published online 31 March 2016ABSTRACT: This study investigated the effects of a spur dike on the development processes, the migration, and the wave length of alternate bars with laboratory experiments. The bar wave length was shown to be shorter as the spur dikes got longer. The forcing effects of a long spur dike on the behavior of alternate bars were stronger than those of a shorter one. However, the bar height was not affected by the variation of the length of a spur dike. The bar migration speed was in inverse proportion to the bar wave length. KEYWORDS: Alternate bar, Bar height, Bar migration speed, Spur dike요 약 : 본 연구에서는 수제의 길이 변화에 의하여 교호사주의 형성, 사주의 이동과 정지, 사주의 파장에 미치는 영향을 실내실험을 통하여 분석하였다. 수제의 길이가 길어질수록 사주의 이동거리와 파장은 짧아지고, 이동속도는 감소하였다. 수제의 길이가 길수록 사주에 작용하는 강제효과가 강하게 작용하였다. 사주의 파고는 수제의 길이 변화에 크게 영향을 받지 않으며, 거의 일정하게 유지되었다. 그러나 사주의 파장이 감소하면 사주의 이동속도는 증가하며, 사주의 파장과 사주의 이동속도는 반비례 관계를 형성하였다.핵심어: 교호사주, 사주의 파고, 사주의 이동속도, 수제*Corresponding author: cljang@ut.ac.kr, ORCID 0000-0001-8041-6230
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Department of Civil Engineering, Korea National University of Transportation, Chungju 27469, KoreaReceived 11 February 2016, revised 8 March 2016, accepted 20 March 2016,published online 31 March 2016ABSTRACT:This study investigated the effects of a spur dike on the development processes, the migration, the wave length of alternate bars with laboratory experiments。The bar wave length was shown to be shorter as The spur dikes got longer。The forcing effects of a long spur dike on The behavior of alternate bars were stronger than those of a shorter oneHowever, the bar height was not affected by the variation of the length of a spur dike。The bar migration speed was in inverse proportion to The bar wave length。KEYWORDS: Alternate bar、bar height、bar migration speed、Spur dike尿片:本研究通过室内实验分析了根据手工长度变化对交弧弦的形成、弦的移动和静止、弦的波长产生的影响。手工鞋的长度越长,沙洲的移动距离和波长就越短,移动速度就越低。手工制作的长度越长,对沙洲的强制效果就越强。生辰八字的波浪不受手工长度变化的太大影响,几乎保持了一定的长度。但是,如果生辰的波长减少,生辰的移动速度就会增加,生辰的波长和生辰的移动速度形成反比关系。关键词:交护生辰,生辰的波波,生辰的移动速度,手工*Corresponding author: cljang@ut.ac.kr, ORCID 0000-0001-8041-6230
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