Abstract
A number of undrained triaxial creep tests were performed for remolded Hong Kong marine clay (HKMC). The tests performed include three types: (1) three single-load-staged undrained triaxial compression creep tests; (2) one multi-load-staged undrained triaxial compression creep test, and (3) one multi-load-staged undrained triaxial extension creep test. Based on the test results, the undrained creep stress-strain Behavior are investigated. It is found that the relationship of axial strain rate (ε̇ a) against time (logt) for the single-load-staged creep tests is nearly linear, and for different creep loads the slopes of lines are almost the same. In multi-staged creep test, however, the creep deformation of current step will be affected by the current deviator stress as well as the creep history in the previous step. The parameters, m and α, will not be a constant, but changes with the current deviator stress and stress history. Based on the test results, two equations are found to determine the parameters of m and α.
Original language | English |
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Title of host publication | Instrumentation, Testing, and Modeling of Soil and Rock Behavior - Proceedings of the 2011 GeoHunan International Conference |
Pages | 139-146 |
Number of pages | 8 |
Edition | 222 GSP |
DOIs | |
Publication status | Published - 1 Dec 2011 |
Event | 2011 GeoHunan International Conference - Instrumentation, Testing, and Modeling of Soil and Rock Behavior - Hunan, China Duration: 9 Jun 2011 → 11 Jun 2011 |
Conference
Conference | 2011 GeoHunan International Conference - Instrumentation, Testing, and Modeling of Soil and Rock Behavior |
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Country/Territory | China |
City | Hunan |
Period | 9/06/11 → 11/06/11 |
Keywords
- Clays
- Creep
- Silts
- Triaxial tests
ASJC Scopus subject areas
- Architecture
- Civil and Structural Engineering
- Building and Construction
- Geotechnical Engineering and Engineering Geology