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Home > Forums > Geotechnical Engineers > Activities > Foundation engineering Forum

Shallow vs. Deep Foundation Cost Comparison

Read More Threads Like This One

Seanan (Structural)

22 Jun 12 14:24

The Geotechnical report requires the removal of the man fill layer to access a suitable soil. This layer is 8 feet deep.
The site is about 185x130 feet.
The shallow foundation design requires about 50 single footers.
We were asked to provide a cost comparison between deep foundation and shallow foundation. The owner was told that the cost of removing the man fill soil and replacing it with suitable material would be around $1M.

Any ideas?

VoyageofDiscovery (Structural)

22 Jun 12 15:52

Do two preliminary designs and compare. Pretty straight forward as long as you have local cost data.

Seanan (Structural)

22 Jun 12 19:48

Where to get the local cost data?

BigH (Geotechnical)

23 Jun 12 2:38

I have, in the past, found that local contractor's estimating staff are pretty happy to provide "reasonable" estimated costs - so long as they have a chance to be considered for the work.

paddingtongreen (Structural)

23 Jun 12 7:29

Do two sample designs and use Means.

http://rsmeans.reedconstructiondata.com/

Michael.
Timing has a lot to do with the outcome of a rain dance.

hokie66 (Structural)

25 Jun 12 6:27

Another option may be to just remove and replace the fill at the footing locations. I have on a few occasions found that to be economical, but it would depend on a number of factors to do with your particular building.

tsaldana (Structural)

20 Jul 12 17:11

what hokie66 said, sounds to be a Geopeir. Check them out on WWW.Geopiers.com. I have never used this product, but sound like it may be an answer for your situation.

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