Plate Bearing Test
Plate Bearing Test
(OP)
Hi,
Plate bearing test applies load to the ground via a 300mm x 300mm steel plate. From the test, the load vs settlement and time vs settlement plots are given.
From the plate bearing test, how to get:
1. Ultimate bearing capacity for an actual footing with a size much bigger than the steel plate ?
2. What is the settlement of the actual footing under service load?
3. Any difference between clay and sand ?
Thanks
Plate bearing test applies load to the ground via a 300mm x 300mm steel plate. From the test, the load vs settlement and time vs settlement plots are given.
From the plate bearing test, how to get:
1. Ultimate bearing capacity for an actual footing with a size much bigger than the steel plate ?
2. What is the settlement of the actual footing under service load?
3. Any difference between clay and sand ?
Thanks





RE: Plate Bearing Test
To your question, you can't extrapolate your load test data too far beyond your test parameters. Don't try to use results from 1ft x 1ft on anything bigger than a 3 ft x 3 ft spread footing. For a 1ft x 1ft plate, your results are valid for 2 - 3 feet depth. Not too meaningful for most multi-story structure foundations.
Settlement estimates should be based on sufficient subsurface exploration, lab tests, and geotechnical calculations.
In general, plate load test results are abused more often than not.
RE: Plate Bearing Test
Parry, R.G. (1948) Geotechnique28, No 1. 107-118
RE: Plate Bearing Test
RE: Plate Bearing Test