- Library Home /
- Search Collections /
- Open Collections /
- Browse Collections /
- UBC Theses and Dissertations /
- Effects of confining pressure and static shear on liquefaction...
Open Collections
UBC Theses and Dissertations
UBC Theses and Dissertations
Effects of confining pressure and static shear on liquefaction resistance of Fraser river sand Stedman, James David.
Abstract
A comprehensive investigation into the effects of confining stress and static shear levels on the resistance to liquefaction of Fraser river sand is presented. A wide range of initial states characterized by static shear, confining stress and relative density levels are considered. It is shown that both Kσ and Kα factors that are used to modify the cyclic resistance value at a reference confining stress of 100 kPa and no static shear to account for higher confining stresses and static shear depend on all initial state parameters; density, confining stress and static shear levels. The currently used modifying factors Kσ Kα proposed by Seed and Harder (1990) grossly underestimate the cyclic resistance of Fraser river sand regardless of the magnitude of confining stress, static shear and relative density. The under prediction is the largest for loose density states for which the greatest potential for liquefaction exists.
Item Metadata
Title |
Effects of confining pressure and static shear on liquefaction resistance of Fraser river sand
|
Creator | |
Publisher |
University of British Columbia
|
Date Issued |
1997
|
Description |
A comprehensive investigation into the effects of confining stress and static shear
levels on the resistance to liquefaction of Fraser river sand is presented. A wide range
of initial states characterized by static shear, confining stress and relative density
levels are considered. It is shown that both Kσ and Kα factors that are used to modify
the cyclic resistance value at a reference confining stress of 100 kPa and no static
shear to account for higher confining stresses and static shear depend on all initial
state parameters; density, confining stress and static shear levels. The currently used
modifying factors Kσ Kα proposed by Seed and Harder (1990) grossly underestimate
the cyclic resistance of Fraser river sand regardless of the magnitude of confining
stress, static shear and relative density. The under prediction is the largest for loose
density states for which the greatest potential for liquefaction exists.
|
Extent |
3352081 bytes
|
Genre | |
Type | |
File Format |
application/pdf
|
Language |
eng
|
Date Available |
2009-04-16
|
Provider |
Vancouver : University of British Columbia Library
|
Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
|
DOI |
10.14288/1.0050243
|
URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
|
Graduation Date |
1997-11
|
Campus | |
Scholarly Level |
Graduate
|
Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.