基于pH作用下的预应力锚杆腐蚀损伤行为研究

Research on Corrosion Damage Behavior of Prestressed Anchors Based on pH

控制土层和结构间的相对位移目前应用最好的是预应力锚杆。在复杂的地质环境中预应力锚杆使用久了就会被锈蚀损伤甚至破坏。本文通过在实验室内对预应力锚杆进行加速腐蚀试验,描述了预应力锚杆表观腐蚀演化在PH值不同的情况下腐蚀损伤机制,基于数据分析得到了预应力锚杆的极化曲线,为分析土层中的预应力锚杆损伤变化行为提供了分析方法、分析手段和数据支撑。

The best application for controlling the relative displacement between soil layer and structure is the prestressed anchor.In complex geological environments,prestressed anchors can be damaged or even damaged by rust after a long period of use.In this paper,the accelerated corrosion test of prestressed anchors in a laboratory is used to describe the corrosion damage mechanism of the apparent corrosion evolution of prestressed anchors under different pH values.Based on the data analysis,the polarization curve of the prestressed anchor is obtained,which provides analysis methods and data support for analyzing the damage change behavior of the prestressed anchor in the soil layer.