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hydro-load test of pile supported storage tanks

hydro-load test of pile supported storage tanks

hydro-load test of pile supported storage tanks

(OP)
I can really take some input from this group. I have a tank farm project consisting of different sized aboveground storage tanks (AST). Since the surface 20+ feet of the site (south of Houston) is very compressible soils, I am recommending pile supported foundations either drilled shafts or augercast.

I know per API-650, we run hydro-load tests for ASTs as I did for my previous projects. However, I wondered this time if hydro-load tests should be recommended from a geotechnical perspective? Settlement is expected to be tiny. Of course the tests can also help on integrity problems etc.

RE: hydro-load test of pile supported storage tanks

You couls use a rigid inclusion network plus distribution mattress instead of piles, it's generally a lot more economical. Very often hydro-load tests are carried out to check the steel structure and the geotechs take that opportunity to check the settlement. On piles from a geotechnical point of view it's not necessary, for rigid inclusions it would help.

RE: hydro-load test of pile supported storage tanks

I'd ask how big are the tanks - diameter? Any details on the 20ft+ soil?

RE: hydro-load test of pile supported storage tanks

(OP)
The tanks are 50 feet in diameter. For the upper 20 feet of soils, we see WOH and pen readings up to 0.2 tsf.

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