老高桩梁板式码头船舶岸电配套基坑改造方案及要点分析

Analysis on reconstruction scheme and key points of ship shore power supporting foundation pit for old high pile beam slab wharf

目前新建码头基本已推广应用船舶岸电技术,但早期老码头一般极少配备船舶岸电系统,同时由于建造时缺乏相应的配套基础设施而不具备直接安装船舶岸电设备的条件,亟需采取改造措施以满足船舶岸电使用需求。以宁波舟山港北仑港区第二国际集装箱码头为例,介绍一种老高桩梁板式码头船舶岸电配套基坑改造方案,即通过凿除码头前沿局部面板和边梁牛腿并新增盖板止口、封闭底板、钢盖板、导缆槽、钢爬梯、钢格栅板等设施,以满足岸电设备的安装和使用要求。此种改造方案具有构造简单、施工方便、对原结构影响小、通用性强等优点,能够保证船舶在停靠码头时岸电供电过程的安全可靠和操作便捷。

At present, the ship shore power technology has been basically popularized and applied in the new wharf, but the early old wharf is generally rarely equipped with ship shore power system. At the same time, due to the lack of corresponding supporting infrastructure during construction, the old wharf does not have the conditions for direct installation of ship shore power equipment. It is urgent to take transformation measures to meet the use demand of the ship shore power. Taking the second international container terminal in Beilun Port area of Ningbo Zhoushan Port as an example, we introduce a reconstruction scheme of ship shore power supporting foundation pit of old high pile beam slab wharf, which is by chiseling off the local panel and side beam bracket of the wharf front and adding facilities such as cover plate stop, closed bottom plate, steel cover plate, fairlead, steel ladder and steel grid plate, so as to meet the installation and use requirements of shore power equipment. This transformation scheme has the advantages of simple structure, convenient construction, little impact on the original structure and strong universality. It can ensure the safety, reliability and convenient operation of shore power supply process when the ship is docked at the wharf.