pile load test
pile load test
(OP)
Hello,
i have a preliminary pile load test where a central pile if being placed between 4 anchor piles. The designer is requesting a maximum load of 2 times the service pile load capacity along with a high strain dynamic test.
Generally, once the pile is subject to the ultimate pile load test, we cant re-use it to make any other test.
However, what about to do the high strain dynamic test on the central pile and once the test is done, then we can begin to do the ultimate load test. i think it is an acceptable approach.
waiting for your comments. thank u
i have a preliminary pile load test where a central pile if being placed between 4 anchor piles. The designer is requesting a maximum load of 2 times the service pile load capacity along with a high strain dynamic test.
Generally, once the pile is subject to the ultimate pile load test, we cant re-use it to make any other test.
However, what about to do the high strain dynamic test on the central pile and once the test is done, then we can begin to do the ultimate load test. i think it is an acceptable approach.
waiting for your comments. thank u





RE: pile load test
RE: pile load test
Use one or the other, but not both.
RE: pile load test
RE: pile load test
Out of interest, do many practitioners here undertake a number of pile load tests on a frequent basis, i.e. enough to form a database? If so, what normalisation procedures do you adopt?
In my experience normalising by the predicted static capacity provides much clearer trends than normalising by a capacity achieved after a certain period of time, and I've seen other references in the literature to support this approach. I'm interested to know what other people do.
RE: pile load test
I miss working stress foundation design.
RE: pile load test
I think that a way to make attractive all this type of tests, is for allowing for a reduction in the FOS if you conduct them. At least that is happening in my area. I was talking with PDI and they suggested that 2% of the installed piles is a typical number for dynamic testing. Number of restrike test can be lower depending if you know that your site is prone to set-up or relaxation. While typical FOS may be 3, doing 2% of dynamic testing may allow to decrease it to 2.5.