Open AccessResearch on Failure of Tee Pipe Based on AutoPIPE
Author(s) -
Lingying Ni,
Qiang Zhen,
Bing Li
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1325/1/012038
Subject(s) - pipeline (software) , structural engineering , stress (linguistics) , pipeline transport , geotechnical engineering , engineering , mechanical engineering , philosophy , linguistics
During the construction of a tunnel beneath a buried oil pipeline, leakage occurred in the tee near the elbow due to accidental collision of construction equipment on the pipeline. In order to analyze the failure reason of tee near elbow, based on the interaction mechanism between ideal elastic-plastic soil and pipeline, the pipeline model was established by using the method of equivalent external load with uniform load, and the pipeline simulation and stress analysis were carried out by using AutoPIPE software. The results show that the allowable stress is not exceeded in the section directly subjected to external loads, but the actual stress value exceeds the allowable stress value due to the concentrated stress near the elbow, which is the main reason for the failure of the tee.