Results 211 to 220 of about 2,986 (254)

Managing Integrity of Underground Fiberglass Pipelines

2010 8th International Pipeline Conference, Volume 1, 2010
The majority of Husky’s fiberglass pipelines in Canada have been used in upstream oil gathering systems to carry corrosive substances. When properly designed and installed, fiberglass pipelines can be maintenance-free (i.e., no requirements for corrosion inhibition and cathodic protection, etc.) However, similar to many other upstream producers, Husky ...
Chuntao Deng, Gabriel Salamanca, Monica Santander   +2 more
openaire   +1 more source

Calculation of the reliability of steel underground pipelines

Strength of Materials, 2009
We present basic principles of reliability calculations for steel underground pipelines resting on stochastic elastic foundation that based on the strength and stiffness criteria using the absolute maxima of arbitrary functions. Specific numerical examples illustrating a general calculation procedure are presented.
S. F. Pichugin, A. V. Makhin’ko
openaire   +1 more source

Reliability of Underground Pipelines Subject to Corrosion

Journal of Transportation Engineering, 1994
The present paper is concerned with estimating the reliability of underground pipelines subject to externally applied loading and to corrosion, either externally or internally, or both. This affects the strength of the pipeline in resisting the applied loads so that the reliability would be expected to decrease with time.
M. Ahammed, R. E. Melchers
openaire   +1 more source

Lateral response of underground pipelines to earthquakes

Computers & Structures, 1994
The effects that different supporting conditions have on the lateral response of underground pipeline structures to earthquakes are examined. Important factors that contribute to the response are identified and the relative importance of their effects is assessed.
G.D. Hahn, S. Sritharan
openaire   +1 more source

Stabilization of the position of an underground pipeline in permafrost

Soil Mechanics and Foundation Engineering, 2011
A comparative analysis is made of technical solutions pertaining to stabilization of the design position of underground pipelines with the product being transported at a positive temperature in regions of permafrost propagation. A new scheme developed by the JSC Fundamentproekt for stabilization of the position of a pipeline, which permits its uniform ...
N. B. Kutvitskaya, O. V. Gorbunova, V. D. Kaurkin, A. V. Ryazanov   +3 more
openaire   +1 more source

Research on Detection and Visualization of Underground Pipelines

2012 2nd International Conference on Remote Sensing, Environment and Transportation Engineering, 2012
A method of detection based on ground penetrating radar (GPR) and makes use of professional three-dimensional (3D) engine interface-OpenGL to realize true 3D visualization of underground pipelines was proposed. The radar antenna was used in the field survey with the survey wheel mode data collection, process and analysis on obtained GPR image were ...
Wei Sun, Qing Xu, Heng Zhang, Zhiqiang Yao   +3 more
openaire   +1 more source

UNDERGROUND PIPELINE PROTECTION: FRENCH PRACTICE

Anti-Corrosion Methods and Materials, 1955
A comprehensive monograph on the topical problem of the protection of underground pipelines against corrosion has been contributed by J. Vincent‐Genod, an engineer of the French ‘Societe des Transports Petroliers par Pipe‐Line,’ to the May 1955 issue of the French journal, Travaux, which is mainly devoted to oil pipeline construction.
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Asphalt Mastic Coatings for Underground Pipelines

CORROSION 1971, 1971
The purpose of a pipe coating on underground steel or aluminum pipe is to isolate the metal from contact with the surrounding environment. This coating forms the first line of defense against corrosion. If the coating is installed free of holidays and if it does not deteriorate from soil stress, stray currents, chemical or other mechanical hazards, it ...
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Interpretation of External Cracking on Underground Pipelines

Volume 2: Integrity Management; Poster Session; Student Paper Competition, 2006
When external cracks are discovered on underground pipelines, it is sometimes difficult to identify the cracking mechanism. This is especially true when the cracking coincides with local stress discontinuities such as dents, where significant stress fluctuations can occur.
Clifford J. Maier, John A. Beavers, Taylor M. Shie, Patrick H. Vieth   +3 more
openaire   +1 more source

Portland Cement Concrete Underground Pipelines

Transportation Engineering Journal of ASCE, 1979
Portland cement concrete pipes are exceptionally durable under normal conditions of use in temperate climate. Concrete pipes made in accordance with the relevant British Standard Specifications are of good quality concrete and therefore are seldom attacked by ground or ground water nor by the effluent they carry.
openaire   +1 more source