Advice for Tank Foundation on Clay
Advice for Tank Foundation on Clay
(OP)
I have 4 70ft diameter x 40 ft tall tanks, 4 ft apart, applying 5,000 lbf/ft2 each on clay down to 120 ft. No ringwall. Tanks have sunk 4ft over 40 years and need to be raised and leveled. What type of foundation is recommended?






RE: Advice for Tank Foundation on Clay
If you're planning to put foundations under the existing tanks, that may limit your options considerably.
RE: Advice for Tank Foundation on Clay
"Look for 3 things in a person intelligence, energy and integrity. If they don't have the last one, don't even bother with the first 2. W. Buffet
RE: Advice for Tank Foundation on Clay
RE: Advice for Tank Foundation on Clay
I agree with Hokie, and would like to know the settlement/time frame history of these tanks. Has the settlement settled down over the years, or gotten worse? If this settlement has not done any damage to the tank bottoms, or to the joint btwn. the bottom and the tank shell, what’s the problem? And, to raise the tanks, what is your plan of attack? That can’t be a simple project. You could add a reinforcing plate ring around the bottom of the shell (maybe a rolled, bent, angle) and put small screw/auger type piles at regular intervals around the tank to spread the load out a bit, and to a lower strata of the underlying soils.
RE: Advice for Tank Foundation on Clay
RE: Advice for Tank Foundation on Clay
RE: Advice for Tank Foundation on Clay
http://www.soilstructure.com/