重力式方块卸荷板大型构件出运码头升级改造

以工程实例介绍了重力式方块卸荷板码头的改造设计方案。由于原有码头卸荷板悬臂较大,在码头前沿均布荷载增大的情况下,使得基床顶面产生较大的后倾应力,基床承载力不满足规范要求。改造方案通过在后方设灌注桩及现浇钢筋混凝土板,减少码头卸荷板悬臂部分上部荷载,防止基床顶面产生较大的后倾应力,为类似的码头改造设计提供了借鉴。

Innovative construction design of gravity block quay wall with relieving slab for large component shipment

This paper mainly describes the innovation design of the gravity block quay wall with relieving slab combining some project cases.Since the reliving slab of existing quay is longer than usual,the increasing apron uniform load causes a greater stress backward on the top surface of the foundation bed,whose bearing capacity cannot meet the requirements of relevant codes.The transformation scheme reduces the load of relieving slab cantilever and prevents a greater stress backward through driving cast-in-place piles and casting reinforcement concrete slabs,which can provide a reference for similar quay transformation in the future.