Stress distrbution between Tanks
Stress distrbution between Tanks
(OP)
Hello,
I am working on the settlement analysis of tank. There is an old tank about 15 m off this new tank.
Anyone knows if there is a ''rule of thumb´´ of how far can this new tank be located such that the stress influences from the old tank won´t affect on the new tank?
I know there are some charts about stress influences under circular loading (newmark, or Boussinesq) but some times this is somewhat time consuming.
Please let me know.
I am working on the settlement analysis of tank. There is an old tank about 15 m off this new tank.
Anyone knows if there is a ''rule of thumb´´ of how far can this new tank be located such that the stress influences from the old tank won´t affect on the new tank?
I know there are some charts about stress influences under circular loading (newmark, or Boussinesq) but some times this is somewhat time consuming.
Please let me know.





RE: Stress distrbution between Tanks
RE: Stress distrbution between Tanks
Boussinesq equations are pretty easy to use (spreadsheets) and can consider your exact case.
f-d
¡papá gordo ain't no madre flaca!
RE: Stress distrbution between Tanks
In the past, if the soils were layered, I used the Westergaard charts, instead of the more conservative Boussinesq solution. We are assuming both tanks are on nearly identical elevation & there are no descending slopes.
See the attached document & posted link for more insight:
http://www
www.FoundEng.com
RE: Stress distrbution between Tanks
For me, the suggested rule of thumb is to give a green-light/red-light estimate.
For tanks resting on clay, however, there may be problems associated with primary consolidation conditions. The old tank might have taken a clay into the virgin part of the curve wiping out any preconsolidation that might have existed (quasi-preconsolidation due to aging, for example (from secondary settlement) - and any new load induced by the new tank on the zone of influence under the old tank would experience virgin settlement (Cc)at once and under the new tank one might expect reconsolidation to pc' and then virgin consolidation. This is why experience is paramount.
RE: Stress distrbution between Tanks
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f-d
¡papá gordo ain't no madre flaca!