Dynamic Response of Pipelines Buried in Back-Filled Trenches

[+] Author and Article Information
S. W. Liu, S. K. Datta, K. R. Khair

Department of Mechanical Engineering and CIRES, University of Colorado, Boulder, CO 80309

A. H. Shah

Department of Civil Engineering, University of Manitoba, Winnipeg, Canada

J. Pressure Vessel Technol 113(3), 429-436 (Aug 01, 1991) (8 pages) doi:10.1115/1.2928778 History: Received November 20, 1990; Online June 17, 2008


Dynamic response of pipelines buried in a back-filled rectangular trench in a semi-infinite medium has been investigated. The pipelines are modeled as long cylindrical shells of small thickness. By using the boundary integral representation and finite element method, we have studied the three-dimensional response to account for either plane P or SV wave incident at an arbitrary angle to the pipe-axis. Numerical results are presented for the normal displacements, displacements along pipe-axis, and the hoop stresses in the pipe wall. It is shown that the response depends critically on the back-filled material as well as on the directions of propagation of the incident waves.

Copyright © 1991 by The American Society of Mechanical Engineers
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