Behaviour of an in-service cast iron water reticulation pipe buried in expansive soil
Gallage, Chaminda, Chan, Derek, Gould, Scott, & Kodikara, Jayantha (2009) Behaviour of an in-service cast iron water reticulation pipe buried in expansive soil. In Ozwater '09 : Australia’s National Water Conference and Exhibition, 16-18 March, 2009, Melbourne, Vic.
This paper presents the measurements of strain and the subsequent stress analysis on an in-service cast iron water main buried in reactive soil. The results indicate that the pipe crown experienced predominantly tensile stresses during drying in summer and, subsequently, these stresses reduce, eventually leading to compressive stresses as the soil swells with increase in moisture content with the approach of winter. It is also evident that flexural movement caused by thermal stresses and soil pressure has led to downward bending of the pipe in summer and subsequent upward movement in winter. The limited data collected from pipe strains and strengths indicate that it is possible for pipe capacity to be exceeded by thermal and soil stresses leading to pipe failure, provided the pipe has undergone significant corrosion.
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|Item Type:||Conference Paper|
|Keywords:||Cast-iron water pipe, Reactive soil, Strain, Flexural stress|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Infrastructure Engineering and Asset Management (090505)|
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Civil Geotechnical Engineering (090501)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Schools > School of Urban Development
|Copyright Owner:||Copyright 2009 please contact the authors|
|Deposited On:||29 Jan 2010 10:34|
|Last Modified:||01 Mar 2012 00:03|
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