作者
Alexandru Pupăzescu, Ioan Popa
发表日期
2016/1/1
期刊
Petroleum-Gas University of Ploiesti Bulletin, Technical Series
卷号
68
期号
1
简介
Analysis of stresses and strains in aerial crossings of natural gas pipeline often involves a reevaluation of the geometry and their connections as a result of the pipe laying and interaction with the ground. In this paper are presented the results of the structural analysis of a pipe DN500 lines in self-supporting crossing aerial pipe for which were found both deviations from the drawing of execution as movements of the ground after laying down. Evaluation of stresses has been carried out on the real geometry–obtained in situ–using finite element method (FEM) for different load cases. The results obtained reveal that the displacements of self-supporting crossing aerial pipe inducing by potential and possible movements of the ground can be sources of dangerous pipe application and as such, it is necessary an intervention that would lead to bank consolidation or strengthening of pipe, or both.
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A Pupăzescu, I Popa - Petroleum-Gas University of Ploiesti Bulletin, Technical …, 2016