Abstract Steel pipes are widely used in offshore structures and buried seafloor pipelines. Buried single-wall pipelines or piles of fixed platforms crossing the earthquake fault can experience very large displacement, which could cause considerable damages failures to pipes. The elevated strains induced from welding connection between also drastically reduce pipe’s performance. Therefore, preve...

This paper presents a computational framework for implementing an advanced Monte Carlo simulation method, called Subset Simulation (SS) for time-dependent reliability prediction of underground flexible pipelines. The SS can provide better resolution for low failure probability level of rare failure events which are commonly encountered in pipeline engineering applications. Random samples of sta...

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 ...

Assessing the condition of underground pipelines such as water lines, sewer pipes, and telecommunication conduits in an automated and reliable manner is vital to the safety and maintenance of buried public infrastructure. In order to fully automate the condition assessment of buried pipes, it is necessary to develop a robust defect analysis and interpretation system. This paper presents the dev...

Abstract: Due to the expansion of high voltage Alternating Current (AC) power transmission lines and cathodically protected buried pipelines, it is becoming more and more difficult to construct them with enough safe distances between them. Thus, the pipelines are frequently exposed to induced AC interferences, which result in perturbation of Cathodic Protection (CP) due to AC corrosion. To s...

• The alkalinity produced during CP reduces the DC interference effect. Anodic reaction initially causes neutralization of electrolyte alkalinity. anodic potential shift is higher than what expected by Tafel law. Potential peak cannot be used as parameter to evaluate risk interference. intensity and duration are key parameters. stray currents may cause severe corrosion on buried carbon steel pi...