重力式码头前沿作业地带堆载预压技术应用与成效

Application and effect of surcharge preloading for apron operation area of gravity terminal

码头前沿作业地带是集装箱码头港区装卸作业最繁忙的区域,其场地的整体稳定性是保证港区作业效率的重要因素之一,也是降低自动化集装箱码头运营时期智能设备维护成本的主要基础。然而,以重力式结构形式为主体的集装箱码头前沿作业地带通常存在两个质量通病:一是岸桥两轨之间区域“凹陷”现象,二是岸桥陆侧轨“突出”现象。近年来,随着交通建设由追求速度、规模向注重品质、效益转变,重力式码头前沿作业地带堆载预压技术的应用逐步增多,从而为重力式码头后方抛石棱体密实沉降研究提供了更多的验证数据,也可较好地解决岸桥两轨间积水导致自动化水平运输设备视觉感应受干扰、水平运输设备在岸桥陆侧轨跳车等系列质量通病。

The apron operation area is the busiest area for loading and unloading operations in the container terminal.The overall stability of the site is one of the important factors to ensure the operation efficiency of the port.For automated container terminals,it is also the main factor to reduce the maintenance cost of intelligent equipment.However,in the container terminal with gravity structure,there are two common quality problems in the apron operation area,one is the phenomenon of‘sag’in the area between the two rails of the quay crane,and the other is the phenomenon of‘protruding’of the land side rail of the quay crane.In recent years,with the transformation of transportation construction from pursuing speed and scale to focusing on quality and efficiency,the application of surcharge preloading technology provides more verification data of the compact settlement of the rock mound,and can also better solve the series of quality problems,such as the disturbance of visual sensing of the automated horizontal transportation equipment caused by the accumulation of water,and the jumping of the horizontal transportation equipment on the land side rail of the quay crane.