开展了3PE防腐蚀层各类影响因素的阴极剥离加速试验，通过剥离距离及层次分析法得到各因素对3PE防腐蚀层阴极剥离的影响。结果表明：环境参数中，溶液含盐量、氯离子含量、防腐蚀层破损面积对3PE防腐蚀层的阴极剥离基本没有影响；增加阴保电位会使剥离距离呈线性增大；3PE防腐蚀层在近中性溶液中的阴极剥离距离最小；剥离距离随土壤含水率的增加而增加，当其达到饱和状态后，剥离距离变化不大。加工参数中，较低的锚纹深度、较高的表面灰尘度都将促进阴极剥离，阴极剥离距离的增加趋势与环氧底层的厚度呈正比。加工参数对阴极剥离的影响远大于环境参数的。

The cathodic disbondment accelerated test of various influencing factors of 3PE anti-corrosion layer was carried out, and the influence of various factors on the cathodic disbonding of 3PE anti-corrosion layer was obtained by peeling distance and analytic hierarchy process. The results show that in the environmental parameters, the salt content of solution, the concentration of chloride ions, and the damage area of the anti-corrosion layer had little effect on the cathodic disbonding of 3PE anti-corrosion layer; increasing the negative potential would increase the linearity of the peeling distance, and 3PE anti-corrosion layer had the smallest cathodic separation distance in the near-neutral solution. The peeling distance increased with the increase of soil moisture content, and when it reached saturation, the peeling distance was almost unchanged. Among the processing parameters, lower anchor depth and higher surface dust degree would promote the cathodic disbondment, and the increase trend of cathodic disbonding distance was proportional to the thickness of epoxy underlayer. The influence of processing parameters on cathodic disbondment was much greater than that of environmental parameters.