Abstract:Combined with the case of the large-diameter pipeline repair project in the Jiaxing Phase I Pipeline and Pumping Station Overhaul Project, the focus is on the application of ultraviolet cured-in-place pipe technology (UV-CIPP) in the repair of sewage pipelines, and its technical principle, application value and development prospect are systematically discussed. By analyzing the aging status of urban sewage pipelines and the limitations of traditional repair technologies, the necessity of promoting the UV-CIPP technology is clarified. This technology has significant advantages such as being trenchless, having a short construction period, and being highly environmentally friendly by using photosensitive resin fiberglass flexible tubes as the carrier and forming inner lining tubes through ultraviolet curing. However, it also has limitations such as high equipment costs and strict pretreatment requirements. The research shows that UV-CIPP technology has significant application value in the repair of sewage pipelines. Its material innovation and intelligent construction will be the future development direction, providing a technical reference for the sustainable operation and maintenance of urban underground pipe networks.
