Footing on filled up soil

[Tstruct]

I have to place an isolated foundation on filled up compacted soil. Fill is excavated soil from the same site. This soil is retained from all sides by retaining walls. Column load is 80 kips. No data of compaction is available. Can I place this foundation on this fill assuming very low bearing capacity say 1000 psf?

 

[Lomarandil]

What is being supported on the foundation? How sensitive will it be to settlement/displacement?

Nearly any soil (if not organic or alluvial clay) will have a strength of at least 1000psf. But it may move a lot before attaining that strength.

 

[dik]

What is the fill? and has it been properly compacted and how deep?

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[Tstruct]

Fill is excavated limestone of the same site. Fill height is around 12 feet. Specified to be 97% compacted, but no testing has been done. Cylinderical oxygen tank with 30 feet height is to be supported on this footing.

 

[HTURKAK]

In this case , minimum 5ton/m2 is reasonable and if the fill depth uniform , differential settlement should not be an issue.



Use it up, wear it out;
Make it do, or do without.

NEW ENGLAND MAXIM

 

[XR250]

This seems sketchy at best. Testing should be performed. Can the walls retain the pressure from the surcharge?

 

[TLHS]

Yeah, I'm way more concerned about the retaining walls than anything else in this question. Why are there retaining walls on four sides? How big is the actual load?

 

[Tstruct]

Retaining wall can withstand the surcharge.


To increase the ground level, for which filling is done. And that fill is retained on all sides. What is your actual concern about retaining walls?