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Position: Home > Articles > An Experimental Study on Bridge Pier Scour Protection of Artificial Grass Transactions of Oceanology and Limnology 2017 (5) 43-47

人工草对桥墩冲刷防护的试验研究

作  者:
杨少鹏;拾兵
单  位:
中国海洋大学工程学院
关键词:
桥墩;单向流;冲刷;护圈;人工草
摘  要:
根据河道桥墩的冲刷机理,本文提出了一种护圈与人工草相结合的防冲刷措施。通过物理模型试验,研究了单向流作用时,桥墩安装护圈情况下,不同密度,不同间距的人工草对桥墩局部冲刷的影响。研究发现,将单一防护效果较弱的护圈和人工草相结合,在清水冲刷时可以实现无冲刷,动床冲刷时冲刷深度最少可降低40%以上。此外根据试验结果拟合了冲刷坑深度与流速和间距关系的经验公式。
译  名:
An Experimental Study on Bridge Pier Scour Protection of Artificial Grass
作  者:
YANG Shaopeng;SHI Bing;College of Engineering,Ocean University of China;
单  位:
College of Engineering,Ocean University of China
关键词:
Bridge pier;;One-way flow;;Scour;;Retainer;;Artificial grass
摘  要:
Based on the scour mechanism of river bridge pier,we developed ascour prevention methodwith artificial grass in combination with retainer.By physical modelling,the influence of one-way flow,retainer,and different densities and spacers of artificial grass on the scour of bridge pier was investigated.With the protection of artificial grassin combination with retainer,noscour was found in case of clear-water scour,and the scour was reduced more than 40%in case of moving bed in comparison with single retainer.Moreover,the empirical formula of scour depth,velocity and distance was fitted based on the data obtained.

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