- Title
- Shallow and deep failure mechanisms during uplift and lateral dragging of buried pipes in sand
- Creator
- Wu, Jinbiao; Kouretzis, George; Suwal, Laxmi; Ansari, Yousef; Sloan, Scott W.
- Relation
- Canadian Geotechnical Journal Vol. 57, Issue 10, p. 1472-1483
- Publisher Link
- http://dx.doi.org/10.1139/cgj-2019-0281
- Publisher
- Canadian Science Publishing
- Resource Type
- journal article
- Date
- 2020
- Description
- This paper presents results of a series of experiments modelling uplift and lateral drag of a rigid pipe buried in dry sand. The main aim of these tests is to document the gradual transition from shallow to a deep sand failure mechanism as the pipe embedment depth increases, identify which parameters affect this transition, and determine experimentally the critical embedment depth, beyond which the normalized reaction acting on the pipe remains constant with increasing pipe embedment. Measurements of the reaction as a function of the relative sand-pipe movement and analysis of images captured during the tests with the particle image velocimetry method suggest that the critical embedment depth depends on sand density, but not on the direction of pipe movement. Outcomes of this study contribute to identifying the limits of applicability of simplified methods used to determine the peak reaction on pipes subjected to ground movements and the estimation of rational parameters for the analysis of deeply buried pipes with beam-on-nonlinear Winkler foundation models.
- Subject
- pipelines; soil-pipe interaction; physical modelling; particle image velocimetry
- Identifier
- http://hdl.handle.net/1959.13/1438302
- Identifier
- uon:40575
- Identifier
- ISSN:0008-3674
- Language
- eng
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