Identification of the information needs for sewer asset management by assessing failure mechanics

Conference paper (2012)
Department
Water Management (CEG) (TU Delft)
Copyright: © 2012 The Authors and IWA
Asset management, failure mechanisms, HAZOP, sewer system
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Published Date

31-12-2012

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Source:

9th International Conference on Urban Drainage Modelling, Belgrade, Serbia, 4-6 September 2012

Faculty

Civil Engineering and Geosciences

Department

Water Management

Abstract

Asset management is a prerequisite for maintaining the required level of serviceability of urban drainage systems. The required asset management effort to achieve a certain level of service is unclear due to sewer systems process and structure complexity. One of the main questions of asset management is what kind of information is needed, and how this information can be obtained. Sewer failure mechanisms explain the structural/operational failures of sewer elements. This study focuses on determining the information required to be able to detect and identify sewer failure mechanisms. In order to be able to identify the failure mechanisms involved, a HAZOP approach was applied. The main processes and defects responsible for the structural/operational failures of sewer elements were identified, as well as possibility of obtaining the information about them. This information will help in estimating the probability of failure occurrence and generally it will help defining the information needed for proper serviceability.

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289823.pdf
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