CENTRIFUGE MODELING OF LATERALLY LOADED PIPELINES

The state of practice (SOP) for pipeline design in areas where pipelines may move relative to the soil involves considering the pipeline to be made up of discrete segments and the segments to be coupled to the soil via a set of spring/sliders. Much of the theory behind this SOP is derived from other geotechnical applications such as pile/soil interaction. There is little or no physical verification of the mechanisms or the magnitude of forces assumed during pipeline displacement. An experimental model examination of displaced pipelines using the centrifuge modeling technique to create similitude between model and prototype or the actual situation is presented. The SOP, the experimental program, and the results of eight pipeline model tests are presented. The results are discussed, with particular reference to the magnitude of loads transmitted to the pipes and the development of the pipeline/soil interaction. The test results are compared with the loads that would be predicted by the SOP design calculations. The main conclusion is that the SOP formulation appears to be unconservative, predicting loads acting on the pipeline about 50% lower than those measured experimentally.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1994/1431/1431-005.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=CENTRIFUGE+MODELING+OF+LATERALLY+LOADED+PIPELINES&author=F.+Poorooshasb&author=M.+Paulin&author=M.+Rizkalla&author=J.+Clark&publication_year=1994
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• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1431, Culvert Distress and Failure Case Histories and Trenchless Technology. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Poorooshasb, F
  • Paulin, M J
  • Rizkalla, M
  • Clark, J I
• Publication Date: 1994

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 33-40
• Monograph Title: Culvert distress and failure case history and trenchless technology
• Serial:
  • Transportation Research Record
  • Issue Number: 1431
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Alternatives analysis; Centrifuges; Dynamic models; Forecasting; Pipelines; Seismicity; Soil structure interaction; Structural design
• Uncontrolled Terms: Lateral loads
• Old TRIS Terms: Pipeline design; Test results
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Pipelines; Terminals and Facilities; I20: Design and Planning of Transport Infrastructure; I42: Soil Mechanics;

Filing Info

• Accession Number: 00666217
• Record Type: Publication
• ISBN: 0309055091
• Files: TRIS, TRB
• Created Date: Sep 15 1994 12:00AM