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Erschienen in: Geotechnical and Geological Engineering 3/2022

02.09.2021 | Original Paper

Analysis of Deformation of Adjacent Buried Pipeline Under Rockfall Impact Load

verfasst von: Pingping Rao, Zhilin Wu, Jifei Cui

Erschienen in: Geotechnical and Geological Engineering | Ausgabe 3/2022

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Abstract

The current research on the deformation of buried pipeline under rockfall impact load is generally based on the analysis of the pipeline cross-sectional deformation, and the deformation caused by lateral deflection of pipeline is less considered. The two-stage method is introduced to analyze the deformation of the adjacent buried pipeline by rockfall impact. The first stage solves for the additional stress caused by rockfall impact in the pipeline, and the second stage solves for the pipeline deformation caused by the additional stress. The validity and accuracy of the method in this paper are verified by comparing with the solutions in the existing literature. In addition, the influence law of pipe diameter, wall thickness, burial depth, rockfall action position and rockfall impact velocity on the deformation of buried pipes is analyzed. The research results show that for certain working conditions and soil parameters, there will be an optimal pipeline diameter D, which minimizes the deformation of the buried pipeline under the rockfall impact; based on Pasternak foundation model and Winker foundation model to calculate the rockfall impact load on buried pipe deformation respectively, it is found that the difference between these two foundation models on pipe deformation is small.

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Metadaten
Titel
Analysis of Deformation of Adjacent Buried Pipeline Under Rockfall Impact Load
verfasst von
Pingping Rao
Zhilin Wu
Jifei Cui
Publikationsdatum
02.09.2021
Verlag
Springer International Publishing
Erschienen in
Geotechnical and Geological Engineering / Ausgabe 3/2022
Print ISSN: 0960-3182
Elektronische ISSN: 1573-1529
DOI
https://doi.org/10.1007/s10706-021-01975-w

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