EFFECTS OF SPUR DIKE DIRECTIONS ON RIVER BED FORMS AND FLOW STRUCTURES
Resent studies have shown that group of non-submerged spur dikes can provide a valuable habitat for fishes and macro invertebrates in addition to the function to established a more desirable river for a flood, navigation and bank erosion. The study on the effects of non-submerged spur dikes on bed deformation, water surface oscillations and mean flow characteristics by changing the spur dikes facing upstream, downstream and normal to the main flow respectively. The results showed that the spur dikes facing downstream led to the maximum scour at the tip of the dikes, the maximum one in the main channel bed. In addition, it was found that in the case with a facing downstream, resistance is largest.
non-submerged spur dikes river bed form low structure
Terunori Ohmoto Ryuichi Hirakawa Kunitoshi Watanabe
Kumamoto University, 39-1, Kurokami 2-chome, Kumamnto, Japan Saga University, 1 Honjo-machi, Saga-city, Saga, Japan
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
957-962
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）