ERA

Download the full-sized PDF of Collapse of dry sandDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R30Z70X46

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Geotechnical and Geoenvironmental Engineering Program

Collections

This file is in the following collections:

Other Research Publications (Geotechnical & Geoenvironmental Engineering)

Collapse of dry sand Open Access

Descriptions

Author or creator
Skopek, P.
Morgenstern, N. R.
Robertson, P. K.
Sego, D. C.
Additional contributors
Subject/Keyword
morgenstern
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
Abstract: Loose cohesionless saturated materials have proved responsible for a number of serious or catastrophic flow slides. Liquefaction failures with no obvious triggering mechanism have also been recorded. This phenomenon of sudden liquefaction without a presence of cyclic shear stresses is often referred to as spontaneous or static liquefaction. Results from previously published studies suggest that liquefaction is triggered not by the undrained loading and generation of pore pressures but by the collapse of the metastable sand structure, which in turn generates the driving pore pressures in a saturated material. Hence, the collapse is a characteristic response of a material to certain stress states rather than a result of some enforced undrained loading. This theory is evaluated on very loose dry Ottawa sand. It is shown that the very loose dry sand when subjected to a constant deviatoric stress path significantly changes its behavior at a certain discreet stress state, increases compressibility, and becomes increasingly unstable. This results in collapse - vigorous contraction of the specimen. This structural collapse appears to be equivalent to the pore-pressure generation in collapsing, very loose saturated sand.
Date created

DOI
doi:10.7939/R30Z70X46
License information
Rights
© 1994 NRC Research Press (Canadian Science Publishing). This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.
Citation for previous publication
Skopek, P., Morgenstern, N. R., Robertson, P. K., & Sego, D. C. (1994). Collapse of dry sand. Canadian Geotechnical Journal, 31(6), 1003-1008.
Source
Link to related item

File Details

Date Uploaded
Date Modified
2014-05-01T03:28:19.261+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 1031191
Last modified: 2015:10:12 17:54:49-06:00
Filename: Collapse of Dry Sand.PDF
Original checksum: cfec97c087c2c9c779f9b7aa4cacf6db
Well formed: true
Valid: true
Page count: 30
Activity of users you follow
User Activity Date