FACTORS AFFECTING LIQUEFACTION AND CYCLIC MOBILITY

Liquefaction is a phenomenon wherein a saturated mass of sand loses a large percentage of its shear resistance and flows in a manner resembling a liquid until the shear stresses acting on the mass are as low as its reduced shear resistance. Cyclic mobility is the progressive softening of a saturated sand specimen when subjected to cyclic loading at constant water content. Cyclic mobility has been observed in the laboratory. The writers believe that most observed cyclic mobility deformations in dilative clean sands are due to a test error, redistribution of void ratio, which is not representative of in-situ behavior. The manner in which soil type, confining stress, and initial consolidation stress ratio affect both liquefaction and cyclic mobility are shown by means of laboratory test results, for the purpose of permitting the reader to develop rational procedures for designing against the effects of earthquake loadings on soils.

Availability:
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Corporate Authors:
American Society of Civil Engineers

345 East 47th Street
New York, NY United States 10017-2398
Authors:
- Castro, G
- Poulos, S J
Publication Date: 1977-6

Media Info

Features: References;
Pagination: p. 501-516
Serial:
- Journal of Geotechnical and Geoenvironmental Engineering
- Volume: 103
- Issue Number: 6
- Publisher: American Society of Civil Engineers
- ISSN: 1090-0241
- Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

TRT Terms: Consolidations; Earthquakes; Granular soils; Liquefaction; Measurement; Mobility; Moisture meters; Repeated loads; Sand; Saturated soils; Soils; Stresses; Void ratios; Waterproofing
Uncontrolled Terms: Saturated sand
Old TRIS Terms: Moisture determination
Subject Areas: Geotechnology; Highways;

Filing Info

Accession Number: 00163400
Record Type: Publication
Source Agency: Engineering Index
Files: TRIS
Created Date: Nov 23 1977 12:00AM