摘要
山区河流水位涨跌迅猛,码头桩基区域出现复杂绕流现象,受涡流运动的影响桩周区域基床随之发生冲刷,进而形成尺寸不一的局部冲刷坑,导致桩基入土深度减小、悬臂端长度增大。本文采用了5种计算公式对某山区码头桩基最大冲刷深度进行计算,结合试验数据发现本工程山区河流环境下桩基局部冲刷坑最大深度的预测采用65-1式可行。
The rivers in mountain area rise and fall rapidly,which results in complex flow around pile foundation of wharf.The foundation bed around the piles is scoured by eddy current,local scouring pits large and small in sizes lead to the decrease of the depth of the pile foundation driven into soil,the increase of the length of cantilever end.Five formulas are used to calculate the maximum scouring depth of the pile foundation in a mountainous wharf.The test results show that Formula 65-1 can be applied to predict the maximum depth of local scouring pits of the pile foundation in the mountainous rivers.
作者
叶茂胜
宋成涛
马未
Ye Maosheng;Song Chengtao;Ma Wei(CCCC Second Navigation Engineering Survey and Design Institute Co.,Ltd.,Wuhan Hubei 430101,China;Three Gorges Navigation Administration,Yichang Hubei 443002,China)
出处
《港工技术》
2023年第1期11-14,共4页
Port Engineering Technology
关键词
码头
桩基
局部冲刷
深度
wharf
pile foundation
local scouring
depth
