A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Advanced Acoustic Monitoring for PCCP
The benefits of using acoustic fiber optic (AFO) monitoring as a tool for condition assessment for prestressed concrete cylinder pipe (PCCP) is well established in the literature and is commercially available for this purpose. However, the monitoring methods in use today are restricted to documenting the occurrence and location of prestressed wire breaks and making a condition determination based on the sum of wire breaks within a given area. This limits the value of monitoring if the number of wire breaks prior to the introduction of monitoring is unknown. The work reported is the result of field tests designed to improve acoustic signal processing for pipe condition assessment in an experimental environment that included burial, pressurization, and intentional damage to the prestressing wires in three specimens of PCCP. The experimental data was analyzed for average root mean square (RMS) power and peak frequency (HEMP) analysis. While the HEMP analysis did not prove useful, the average RMS power showed promise for correlating the signal amplitude with the number of broken wires.
Advanced Acoustic Monitoring for PCCP
The benefits of using acoustic fiber optic (AFO) monitoring as a tool for condition assessment for prestressed concrete cylinder pipe (PCCP) is well established in the literature and is commercially available for this purpose. However, the monitoring methods in use today are restricted to documenting the occurrence and location of prestressed wire breaks and making a condition determination based on the sum of wire breaks within a given area. This limits the value of monitoring if the number of wire breaks prior to the introduction of monitoring is unknown. The work reported is the result of field tests designed to improve acoustic signal processing for pipe condition assessment in an experimental environment that included burial, pressurization, and intentional damage to the prestressing wires in three specimens of PCCP. The experimental data was analyzed for average root mean square (RMS) power and peak frequency (HEMP) analysis. While the HEMP analysis did not prove useful, the average RMS power showed promise for correlating the signal amplitude with the number of broken wires.
Advanced Acoustic Monitoring for PCCP
Clark, Brien L. (author) / Paulson, Peter O. (author) / Bell, Graham E.C. (author) / Mascarenhas, Roberto (author)
Pipelines 2014 ; 2014 ; Portland, Oregon
Pipelines 2014 ; 256-266
2014-07-30
Conference paper
Electronic Resource
English
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