Reliability Centered Maintenance: Gravity Main Blockage Condition Testing and Degradation Progression Estimation using Acoustical Testing

Author: Fishburne, John

Source: Proceedings of the Water Environment Federation, Collection Systems 2011 , pp. 411-422(12)

Publisher: Water Environment Federation

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CMU presents preliminary findings about the potential reliability of acoustical inspection to identify partial and complete blockages of sewer pipes, to identify how well acoustical testing reflects changes in operating and structural conditions, and to create accurate and efficient routine gravity system maintenance cycles. CMU reports on the efficacy of on-going trials to monitor the re-growth of blockages and use acoustical inspections to determine appropriate maintenance cycles and reduce gravity sewer maintenance project critical path time and risk. The paper also presents some short-term comparative data for one sewer shed and individual sewer segments demonstrating the change in operating condition.

Keywords: Acoustical; Predictive Maintenance; Reliability Centered Maintenance; SL-RAT; Sewershed

Document Type: Research Article


Publication date: January 1, 2011

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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