A Framework of Web-GIS for PCCP Risk Management System

PCCP is usually used throughout many water and wastewater utilities as critical mains with high flow rates, sudden failures can have significant negative consequences. The world has experienced a number of failures of Prestressing Concrete Cylinder Pipe (PCCP) lines and as a result during the past ten years, much attention has been focused on reliably assessing the condition of PCCP mains. In this paper the framework of Web-GIS for PCCP risk management with wireless sensor network is proposed. Acoustic monitoring and comprehensive dynamic risk management modeling are important subsystem. It provides an assessment of remaining time to failure for each pipe segment. This strategy can provide the opportunity to identify problematic pipe sections and repair the pipe prior to failure, and also can assess the presence and extent of deterioration in these large-diameter water and wastewater pipelines.