遮帘桩对板桩码头地震响应的影响  

Influence of covered pile on seismic response of sheet-piled wharf

作　　者：王翠燕 吴相豪 WANG Cui-yan;WU Xiang-hao(School of Marine Science and Engineering,Shanghai Maritime University,Shanghai 201306,China)

机构地区：[1]上海海事大学海洋科学与工程学院,上海201306

出　　处：《水运工程》2022年第3期55-60,共6页Port & Waterway Engineering

摘　　要：为了研究地震作用下遮帘桩对板桩码头前墙、锚碇墙以及拉杆受力性能的影响,运用ABAQUS软件对京唐港32;遮帘式板桩码头进行动力有限元分析。结果表明,遮帘桩可显著减小地震作用下前墙弯矩和拉杆拉力,对锚碇墙的受力性能影响较小;遮帘桩厚度对地震作用下拉杆拉力、泥面高程以下部分的前墙弯矩影响较大,对泥面高程以上部分的前墙弯矩和锚碇墙弯矩影响较小;泥面线高程以上部分前墙弯矩随着前墙与遮帘桩间距的增大逐渐增大,前墙与遮帘桩间距对泥面线高程以下部分前墙弯矩、锚碇墙弯矩以及拉杆拉力的影响不明显;遮帘桩长度对地震作用下前墙、锚碇墙以及拉杆的受力性能影响较小。In order to study the influence of the covered pile on the front wall, anchor wall and lever force performance of the sheet-piled wharf under seismic action, we carry out the dynamic finite element analysis of covered sheet-piled wharf of the 32;berth of Jingtang Port by ABAQUS software. The results show that the covered pile can significantly reduce the front wall bending moment and rod tension under the seismic action, and the influence on the force performance of the anchor wall is small. The thickness of the covered pile has a great impact on the rod tension and bending moment of the front wall below the mud surface elevation, and has a small effect on the front wall bending moment above the mud surface elevation and anchor wall bending moment. The front wall bending moment above the elevation of the mud surface line increases gradually with the increase of the spacing between the front wall and the covered pile, and the spacing between the front wall and the covered pile has no obvious effect on the front wall bending moment below the elevation of the mud surface line, anchor wall bending moment and rod tension. The length of the covered pile has less effect on the force performance of the front wall, anchor wall and lever under seismic action.

关 键 词：遮帘桩 板桩码头 地震响应 有限元分析 

分 类 号：TV312[水利工程—水工结构工程] U656.112[交通运输工程—港口、海岸及近海工程]