预应力锚索腐蚀耐久性试验方案设计探讨

预应力锚索在岩土工程加固中应用广泛，其腐蚀耐久性对工程运行安全至关重要，而相关的腐蚀变化规律及机理还有待进一步明确。在总结当前预应力锚索腐蚀耐久性研究成果的基础上，对其腐蚀耐久性室内加速试验方案设计进行了探讨。分析了影响腐蚀的主要因素并拟定了各因素的不同影响水平；采用正交设计方法优化试验方案并通过有限元方法对试验模型尺寸和应力分布进行了计算模拟优化和验证；介绍了模型制作等工艺步骤。相关成果可供类似耐久性试验方案设计参考。 

Discussion on test scheme design for anti-corrosion durability of prestressed anchor cable

The prestressed anchor cable is widely used in geotechnical engineering reinforcement, so its anti-corrosion durability is essentially important for engineering operation safety and the variation law and mechanism of corrosion need to be further clarified. By summarizing the existing research results of anti-corrosion durability for prestressed anchor cable, the indoor accelerating test scheme design for anti-corrosion durability of prestressed anchor cable was discussed. In the indoor accelerating test, the main influential factors on corrosion were analyzed and the affecting level of different factors was proposed. The orthogonal design method was used to optimize test scheme, the size and stress distribution of test model was also optimized and verified by finite element method. Finally, the making steps of test model are introduced. The relevant results can be referred for the design of similar experiments.