A physical probabilistic model to predict failure rates in buried PVC pipelines

Davis, Paul F.; Burn, Stewart; Moglia, Magnus; Gould, Scott

doi:10.1016/j.ress.2006.08.001

Cited by 75 publications

(34 citation statements)

References 6 publications

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“…A literature survey indicated that a number of research projects have been recently undertaken with the goal of studying pipe break principles and developing predictive models (Davis et al 2007;Berardi et al 2008;Yamijala et al 2009). The methods can be classified into three categories in general: physically based approachs, statistical approachs and data mining approachs.…”

Section: Introductionmentioning

confidence: 99%

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Application of genetic programming to modeling pipe failures in water distribution systems

Chen

2010

Journal of Hydroinformatics

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The water loss from a water distribution system is a serious problem for many cities, which incurs enormous economic and social loss. However, the economic and human resource costs to exactly locate the leakage are extraordinarily high. Thus, reliable and robust pipe failure models are demanded to assess a pipe's propensity to fail. Beijing City was selected as the case study area and the pipe failure data for 19 years (1987)(1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995)(1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005) were analyzed. Three different kinds of methods were applied to build pipe failure models. First, a statistical model was built, which discovered that the ages of leakage pipes followed the Weibull distribution. Then, two other models were developed using genetic programming (GP) with different data pre-processing strategies. The three models were compared thereafter and the best model was applied to assess the criticality of all the pipe segments of the entire water supply network in Beijing City based on GIS data.

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Section: Introductionmentioning

confidence: 99%

“…Physically-based approaches Davis et al 2007) aim at discovering the physical mechanisms underlying pipe failure. But it will take a long time to observe the process, and may be costly.…”

Section: Introductionmentioning

confidence: 99%

Application of genetic programming to modeling pipe failures in water distribution systems

Chen

2010

Journal of Hydroinformatics

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“…Cracks in PVC mains typically initiate around stress concentrators in the material on the μm-mm scale while the global stresses in the material are still well below the yield stress (~56 MPa [8,9]). Therefore, the FEM model will be used to calculated the global stress distribution in the system.…”

Section: Model Asumptions and Failure Criterionmentioning

confidence: 99%

Combining Models to Simulate the Condition of the PVC Distribution Network

Laarhoven

Wols

2018

EWaS3 2018

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Abstract:The failure of joints plays an important role in the overall performance of mains. One of the prevalent failure modes at polyvinyl chloride (PVC) joints is the rupture of pipe or joint, which may occur due to high angular deflection of the pipe with respect to the joint, caused by differential soil settlement. The present paper reports the construction and use of a finite element model to determine the maximum angular deflection of a variety of PVC joints in different loading situations. The resulting acceptable deflections vary between 3° and 8° per side, which differs significantly from installation guidelines. The results will support drinking water companies in substantiating the prioritization of maintenance and inspection.

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“…En Canadá se obtuvieron distribuciones semejantes del material instalado en 21 ciudades (11% de la población del país). Las tuberías de PVC se están usando en un 80% del mercado norteamericano para la renovación de conducciones (Davis et al, 2007 Debido a que la mayoría de las tuberías de agua instaladas durante la primera mitad del siglo XX fueron de fundición gris o dúctil y que a mediados de la década de los noventas tenían en promedio entre 50 y 75 años de operación (Rajani, 1996), los estudios de los tipos de fallos se han enfocado más a este tipo de materiales. Los fallos de las conducciones juegan un papel importante en el fenómeno de la intrusión patógena, provocando un problema de calidad del agua, lo cual se considera en diversos estudios, como en la AWWA (2001) e incluso en España (Cabrera et al, 1999).…”

Section: El Deterioro De Las Conduccionesunclassified

“…Los fallos que han sido reportados en campo en tuberías de PVC-U se atribuyen a instalaciones defectuosas, condiciones excesivas de operación y daños por terceros; mientras que en otros casos se deben a la baja calidad en la fabricación (Davis et al, 2007).…”

Section: Conducciones Plásticasunclassified

Modelación de la intrusión patógena a través de fallos y su implicación en la red de distribución de agua

Rodríguez¹,

Jesús²

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A physical probabilistic model to predict failure rates in buried PVC pipelines

Cited by 75 publications

References 6 publications

Application of genetic programming to modeling pipe failures in water distribution systems

Application of genetic programming to modeling pipe failures in water distribution systems

Combining Models to Simulate the Condition of the PVC Distribution Network

Modelación de la intrusión patógena a través de fallos y su implicación en la red de distribución de agua

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