Journal
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
Volume 91, Issue -, Pages 272-283Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.soildyn.2016.09.008
Keywords
Pipeline; Underground infrastructure; Earthquake; Large ground deformation; Soil-pipe interaction
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The principal causes of earthquake-induced ground deformation are identified and their interaction with underground infrastructure, primarily pipelines and conduits, is described. The coupled forces normal and parallel to underground pipelines arising from earthquake-induced ground movement are evaluated, including a review of measured stresses on pipe surfaces during large-scale testing, evaluation of frictional forces related to soil-pipe interaction, and the resolution of interaction forces along and across pipelines. Methods for characterizing soil reaction to pipe lateral and vertical movements are presented. The maximum downward pipe force is only about one-third the maximum force determined with conventional bearing capacity equations, thus requiring changes in current analytical and design practice. The analytical results for pipeline response to strike-slip and normal fault rupture are shown to compare favorably with the results of both large-scale and centrifuge tests of soil-pipeline interaction simulating these types of severe ground deformation. Published by Elsevier Ltd.
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