lateral earth pressure
lateral earth pressure
(OP)
I am designing a circular concrete manure storage tank, 100 ft dia x 16 ft high in a floodplain. For bearing capacity considerations, it needs to be buried 3 ft. The 3 ft of backfill will be 5" minus crushed. 100-year flood level is an additional 2 ft above natural ground.
In designing for buoyancy control, I want to take credit for the overturning moment of the horizontal pressures on the outside tank wall. How do I calculate the combined resultant against the tank wall of the active soil pressure + the water?
(I find all kinds of references for when the water table is at some point within the soil prism, none when the water is above soil level). Thanks for any pointers!
In designing for buoyancy control, I want to take credit for the overturning moment of the horizontal pressures on the outside tank wall. How do I calculate the combined resultant against the tank wall of the active soil pressure + the water?
(I find all kinds of references for when the water table is at some point within the soil prism, none when the water is above soil level). Thanks for any pointers!





RE: lateral earth pressure
RE: lateral earth pressure
RE: lateral earth pressure
RE: lateral earth pressure
Draw a free body diagram of the tank and foundation, including the earth directly above the perimeter footing (if any.) Then ask yourself how a lateral force on the perimeter of the tank can withstand the (vertical) buoyant forces acting on the tank. They can't.
Please see FAQ731-376 for great suggestions on how to make the best use of Eng-Tips Fora. See FAQ158-922 for recommendations regarding the question, "How Do You Evaluate Fill Settlement Beneath Structures?"