Using Finite Element Method for Stress-Strain Evaluation of Commonly Used Buried Pipelines in Fault

Ning Tan, Liang Zhou, Weibo Zheng, Honglin Song, Zhibin Sun, Zhiyin Wang, Guisheng Wang, Guanjun Wang, Liming Zhang and Xingyu Zhou
Additional contact information
Ning Tan: Sinopec, Beijing 100000, China
Liang Zhou: Technical Inspection Center, Sionpec Group Shengli Oilfield Company, Dongying 257100, China
Weibo Zheng: Technical Inspection Center, Sionpec Group Shengli Oilfield Company, Dongying 257100, China
Honglin Song: Technical Inspection Center, Sionpec Group Shengli Oilfield Company, Dongying 257100, China
Zhibin Sun: Sinopec, Beijing 100000, China
Zhiyin Wang: Sinopec, Beijing 100000, China
Guisheng Wang: Technical Inspection Center, Sionpec Group Shengli Oilfield Company, Dongying 257100, China
Guanjun Wang: Technical Inspection Center, Sionpec Group Shengli Oilfield Company, Dongying 257100, China
Liming Zhang: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Xingyu Zhou: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China

Energies, 2022, vol. 15, issue 5, 1-15

Abstract: In different kinds of buried pipelines, L245 and L360 are the most used which are chosen by the China Pipeline Design Institute. For studying the stress and deformation characteristics of buried pipelines with different specifications across faults, this paper established a physical model of cross-fault buried pipelines and a finite element model of pipelines crossing the fault zone, which adopts the finite element method and ANSYS software. The models take pipeline material, soil material, grid division, load application method, and other factors into consideration, concentrating on the nonlinear solution of L245 and L360 buried pipelines under the condition of strike-slip fault soil. The results illustrate that pipelines with larger diameters are more conducive to resisting the stress and deformation caused by faults. Moreover, the strain and dislocation amount of the pipeline increases with the increase of the dislocation amount when a fault occurs. Furthermore, the resistance is optimal when the angle of intersection between the fault and the pipe is 60, while further research and analysis are needed for special cases. This work can provide a direction for the optimization of parameters for pipeline design especially strain-based design.

Keywords: buried pipeline; finite element method; fault; contact stiffness; dislocation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/5/1655/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/5/1655/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:5:p:1655-:d:756519

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().