and Its Variation with Depth
Publication: Journal of Transportation Engineering
Volume 113, Issue 5
Abstract
The modulus of soil reaction, characterizes the stiffness of soil backfill placed at the sides of buried flexible pipelines for the purpose of evaluation deflection caused by the weight of backfill above the pipe. In this study, the nature of is investigated in detail to determine whether its magnitude increases with increasing depth of embedment. The development of in the literature is reviewed, and data from field installations are presented to establish that can be shown to increase with depth on the basis of previous research. Analytical methods, based on elastic theory and finite element techniques, are also used to demonstrate the dependence of on depth. Design values of which vary with depth, are presented, together with recommendations regarding the use of in the Iowa formula.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 113 • Issue 5 • September 1987
Pages: 538 - 553
Copyright
Copyright © 1987 ASCE.
History
Published online: Sep 1, 1987
Published in print: Sep 1987
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