The repairing joint of hot shrinkage sheath in fieldwork is analyzed. Application process of hot shrinkage sheath, methods for optimizing repairing structure and reducing corrosion are discussed.

• 摘要通过对埋地钢管热缩套补口材料的现场应用状况的调查，分析了腐蚀发生的原因，探讨了改进钢管热缩套补口施工工艺和优化补口结构的方法。