Patent ID: 6556924
Filing Date: 2003-04-29
Classification: G06Q

Abstract:
A method of determining optimal repair options for cast iron and ductile iron water or wastewater pipe sections having a number of pipe-lengths, which have been inspected using a pipe wall thickness measurement device, the method comprises of computer-implemented steps of:(a) inputting measured pipe-length wall dimensional data, geometric and materials properties of the pipe-length, tool measurement errors, and analysis parameters; (b) determining pipe failure rates for current and future times based on the input data, by determining probability of pipe-length failure due to leaks through corrosion pits and determining probability of pipe-length failure due to transverse bending of a corroded pipe-length; (c) defining at least one repair scenario for the pipe section and determining pipe failure rates for the at least one defined repair scenario; and (d) providing the pipe failure rate determinations to the user as output information.