Hope Creek Circulating 144-inch Water Pipeline Carbon Fiber Upgrade

摘要

Hope Creek Nuclear Generating Station has a comprehensive asset management program to address their cooling tower in addition to their circulating water pipelines. Results from condition assessment of their circulating water pipelines in recent years indicated the need for repair of seven (7) distressed segments. The plant elected to repair the segments of 144-inch pre-stressed concrete cylinder pipe (PCCP) of the circulating water pipelines during an outage taking place in October 2013. Carbon fiber-reinforced polymer (CFRP), a trenchless structural repair system, was selected to strengthen the damaged PCCP. CFRP is a repair material used to provide targeted structural upgrades within distressed or damaged pipeline sections. This paper will discuss all aspects of design and implementation of the repair.