Abstract
Loading tests on model horizontal grounds and slopes are performed using a 100-mm-wide strip footing with restrained and free-rotation conditions. Test results reveal that complete restraint against rotations on the footing generates larger values of ultimate bearing capacity and deeper failure surfaces than those for footings with a free-rotation condition. This is true for horizontal and slanted grounds with various slope angles. Test results also reveal that for a vertically loaded footing, a major factor that influences the ultimate bearing capacity of the footing (q u ) is the load eccentricity (e c ) at the footing base. The influence of load inclination on the values of q u for free-rotating and fixed footings is minor because the load inclination angles measured during the loading tests were negligibly small. In the case of a footing placed on a slanted ground, a load eccentric toward the heel of the footing is associated with a larger value of q u than that for a load eccentric toward the toe of the footing when subjected to similar extents of load eccentricity. This observation suggests that the currently used formula for correcting load eccentricity (e c ) has to be updated in order to address the issue of increased q u induced by a load eccentricity toward the heel of the footing.
Original language | English |
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Pages (from-to) | 1-10 |
Number of pages | 10 |
Journal | Journal of GeoEngineering |
Volume | 14 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2019 |
All Science Journal Classification (ASJC) codes
- Geotechnical Engineering and Engineering Geology