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Effect of Ground Subsidence on Reliability of Buried Pipelines  

이억섭 (인하대학교 기계공학과)
김동혁 (인하대학교 기계공학과 대학원)
Publication Information
Journal of the Korean Society for Precision Engineering / v.21, no.1, 2004 , pp. 173-180 More about this Journal
Abstract
This paper presents the effect of varying boundary conditions such as ground subsidence, internal pressure and temperature variation for buried pipelines on failure prediction by using a failure probability model. The first order Taylor series expansion of the limit state function incorporating with von-Mises failure criteria is used in order to estimate the probability of failure mainly associated with three cases of ground subsidence. Using stresses on the buried pipelines, we estimate the probability of pipelines with von-Mises failure criterion. The effects of varying random variables such as pipe diameter, internal pressure, temperature, settlement width, load for unit length of pipelines, material yield stress and pipe thickness on the failure probability of the buried pipelines are systematically studied by using a failure probability model for the pipeline crossing ground subsidence regions which have different soil properties.
Keywords
Failure Probability; Buried Pipeline; Boundary Condition; Ground Subsidence; Elastic Foundation; Reliability Estimation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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