SCOUR MITIGATION AT BRIDGE PIERS USING SACRIFICIAL PILES
SCOUR MITIGATION AT BRIDGE PIERS USING SACRIFICIAL PILES
复制标题
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Anisul;Haque;Munsur;Rahman;Tarekul;Islam;Asad;Hussain
中科院分区：
文献类型：
--
作者：
Anisul;Haque;Munsur;Rahman;Tarekul;Islam;Asad;Hussain
为了减轻桥墩周围的冲刷，牺牲桩是涉及自然过程的经济方法。布置应使得来自牺牲桩的冲刷材料应具有足够的体积来填充在桥墩上游形成的冲刷孔，使得沉积物被截留在冲刷孔内。这个概念与早期的牺牲桩研究不同，早期研究主要涉及降低马蹄涡的强度。为了确定牺牲桩缓解冲刷的效果，在清水条件下的矩形桥墩前进行了桩的替代布置试验，结果发现，当将一组桩放置在桥墩投影宽度两倍的距离（桥墩宽度的堵塞百分比为60%）时，冲刷量最多可减少61%，最大冲刷深度最多可减少50%。
To mitigate scour around bridge piers, sacrificial piles are economic method where natural processes are involved. The arrangement should be such that scoured materials from the sacrificial piles should have enough volume to fill the scour hole created upstream of the pier in such a way that sediments are trapped inside the scour hole. This concept differs from earlier study made with sacrificial piles that mainly deals to reduce the strength of horseshoe vortex. To determine the effect of sacrificial piles for scour mitigation, alternative arrangements of piles were tested in front of a rectangular pier under clear-water condition and found that when the group of piles is placed at a distance of twice the projected width of the pier, for which percentage of blockage of the pier width is 60%, the scour volume can be reduced upto 61% while the maximum scour depth can be reduced upto 50%.