Strain-based design for buried pipelines subjected to landslides
نویسندگان
چکیده
منابع مشابه
Evaluation of Seismic Protection Methods for Buried Fuel Pipelines Subjected to Fault Rupture
Buried steel fuel pipelines are critical lifelines for the society and the economy but are very vulnerable to earthquake-induced ground failure. Traversing seismic areas inevitably results in several pipe-fault crossings. Fault rupture forces a buried pipeline to undergo deformations that could be substantial and heavily endanger its integrity. Due to the grave consequences of a potential pipe ...
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Abstract: The risks of alternating current (AC) corrosion and overprotection increasingly demand new criteria forcathodically protected pipelines. To assess the risk of AC corrosion, new cathodic protection (CP) criteria have beenproposed based on DC/AC current densities measurements using coupons. The monitoring system designed for thisproject was based on the instant-off method, with steel co...
متن کاملRefinement to the Existing Analytical Methods of Analysis of Buried Pipelines due to Strike-Slip Faulting
Analytical methods presented to analyze the buried steel pipelines at strike-slip fault crossing use the Euler-Bernoulli beam theory. The cross-section of a buried pipe that is completely surrounded by soil cannot rotate freely and would not be remained perpendicular to the bending line after deformation. So it would be better to take into consideration a rotation between the cross-section and ...
متن کاملTesting of Buried Pipelines Using Guided Waves
Introduction The inspection requirements of pipes that have an operational history of many tens of years have lead to the adoption of new maintenance practices and safety standards. The solution currently considered as best maintenance practice is the direct assessment of 100% of the pipelines with the minimum possible economical impact. The use of RBI (Risk Based Inspection) methods and the in...
متن کاملDetection of Bending Stresses in Buried Pipelines
When gas or oil pipelines must be laid through sand or permafrost or other unstable soils, the pipe walls can he subjected to large bending loads if the soil shifts. In order to detect this condition and correct it, it would be useful to monitor the state of stress along the pipeline'at regular time intervals using a vehicle that is moved through the line by the fluid or gas in it. The experime...
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ژورنال
عنوان ژورنال: Petroleum Science
سال: 2012
ISSN: 1672-5107,1995-8226
DOI: 10.1007/s12182-012-0204-y