大口径老旧混凝土排水管道紫外光固化内衬修复质量控制要点

Essentials of Quality Control for Repairing Ultraviolet Curing Lining of Large-diameter Old Concrete Drainage Pipe

摘要:

以上海市奉贤区南排污水总管及附属设施修复工程为例，结合相关标准与多年施工经验，总结了紫外光固化内衬修复技术施工前、中、后的质量控制技术要点和措施，主要包括：在固化施工过程中，应根据试固化工艺参数控制好巡航速度、扩展气压、管内温度等来确保固化质量；完成全部内衬修复工作后，还需对内衬管进行外观检查，现场取样送检并进行功能试验。结果表明，内衬修复质量达到了控制标准要求。

Abstract:

Taking the repair project of the main sewage pipe and auxiliary facilities for the south of Fengxian District as an example, combined with the relevant standards and many-year construction experience, the technological essentials and measures of quality control before, during and after the repair and construction of ultraviolet curing lining are summarized. In the curing construction process, the cruise speed, expansion pressure and in-pipe temperature should be controlled according to test curing process parameters to ensure curing quality. After completing all the lining repair construction, a visual inspection should be conducted on the lined pipe, and the on-site sample should be inspected and the functional tests should be conducted. The results show that the quality of the lining repair in this project meets the control standard requirements.