SOIL LIQUEFACTION AND CYCLIC MOBILITY EVALUTION FOR LEVEL GROUND DURING EARTHQUAKES

It is shown that the design engineer has two basic choices if he considers it appropriate to neglect the possible effects of drainage occurring during the period of cyclic stress applications: (1) To calculate the stresses induced in the ground by the design earthquake, and to compare these stresses with those required to cause cyclic mobility of liquefaction of representative samples in the laboratory. The main problem in this approach lies in correctly assessing the characteristics of the in-situ deposit from laboratory tests performed on even good quality undisturbed samples. (2) To be guided by the known field performance of sand deposits correlated with some measure of insitu characteristics, such as the standard penetration test. In some cases it is desirable to evaluate the possible effects of pore pressure dissipation in different layers of a deposit during and following earthquake shaking. Methods of accomplishing this are reviewed and described. /Author/

Availability:
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Corporate Authors:
American Society of Civil Engineers

345 East 47th Street
New York, NY United States 10017-2398
Authors:
- Seed, B
Publication Date: 1979-2

Media Info

Features: Figures; References; Tables;
Pagination: p. 201-255
Serial:
- Journal of Geotechnical and Geoenvironmental Engineering
- Volume: 105
- Issue Number: GT2
- Publisher: American Society of Civil Engineers
- ISSN: 1090-0241
- Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

TRT Terms: Drainage; Earthquakes; Laboratory tests; Liquefaction; Pavement layers; Pore pressure; Sand deposits; Soil penetration test; Stresses; Undisturbed samples
Old TRIS Terms: Liquefaction (Soil)
Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

Accession Number: 00194171
Record Type: Publication
Report/Paper Numbers: ASCE 14380
Files: TRIS
Created Date: Aug 15 1979 12:00AM