Experiments of Curved Pier Footing on Bridge Scour Reduction

• Main Authors: Chi-Yu Chen, 陳紀諭
• Other Authors: Chen-Ming Kuo
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/27752504691763379688

碩士 === 國立成功大學 === 土木工程學系專班 === 97 === To know the effect of curved pier footing on local scour reduction at bridge foundation, experimental models were used to simulate the local scour condition on site in this study. The effect of curved pier footing on scour reduction is discussed in terms of scour depth and the size of the footing. According to the results of experiments, the curved pier footing has the best efficacy of almost no scour under low flow rate condition. When under high flow rate condition, curved pier footing also provides more than 15% resistant ability to local scour. As the result, curved pier footing is proved that it can successfully reduce the local scour at pier foundation due to its resistant ability to down flow and horseshoe vortex.