Zhaohui Hong

TL;DR: In this paper, the energy method is introduced to calculate the analytical solution of pipeline lateral buckling with a single arch initial imperfection, and the cause of snap buckling phenomenon is discussed.

TL;DR: In this article, the authors proposed a lateral global buckling failure envelope for deep-water HT/HP pipelines using a numerical simulation analysis and analyzed the factors influencing the envelope, including the thickness t, diameter D, soil resistance coefficient μ, calculating length Lf, imperfection length L and imperfection amplitude V.

TL;DR: In this paper, a back propagation neural network was trained to model the relationship between the locations of the three key points and the values of the nine influential factors of the variation in the lifting displacement.

TL;DR: In this paper, a time-dependent axial soil friction function is introduced to examine the pipeline walking behavior over the operational thermal cycles, and a suite of timedependent matrixes is provided to reveal the development of the expansion/contraction of the pipeline, the corresponding mobilised soil frictions and the EAF profile.

TL;DR: In this article, the authors analyzed the walking phenomenon considering the effects of mobilisation of the resistance at the pipeline end structures and developed new analytical solutions for the present problem, in terms of different walking mechanism, maximum axial resistance Pmax, and positions of pipeline end structure.