高桩码头结构耐久性及剩余使用寿命研究

Research on Durability and Remaining Service Life of High-Piled Wharf Structure

摘要: 高桩码头的结构耐久性影响着在役码头的工作状况和剩余使用寿命。本文参考相关工程规范并结合工程实践总结归纳了影响高桩码头结构耐久性的各项物理指标及相应的现场测度方法，以实现对高桩码头结构耐久性的全面评估。通过确定性方法，即采用工程现场实测的混凝土保护层厚度、环境氯离子浓度和钢筋截面积等关键耐久性指标，提出了确定性计算方法对高桩码头结构剩余使用年限进行预测，并基于此为高桩码头的后期保养、维护提供具体指导意见。

Abstract: The structural durability of a high-piled wharf affects the working condition and remaining service life of the wharf in service. Referring to relevant engineering specifications and combining with engineering practice, this paper summarizes various physical indicators and corresponding on-site measurement methods that affect the durability of high-piled wharf structures, in order to achieve a comprehensive evaluation of the durability of high-piled wharf structures. Through the deterministic method, that is, using the key durability indicators such as the thickness of the concrete protective layer, the concentration of environmental chloride ions and the sectional area of reinforcement measured on the project site, a deterministic calculation method is proposed to predict the remaining service life of the high-piled wharf structure, and based on this, specific guidance is provided for the later maintenance and maintenance of the high-piled pile head.