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Re: Vessel or Stack Foundation - Shallow Bedrock

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Absolutely. I think I can add anything except a skyhook - still too 
expensive.

William L. Polhemus, Jr. P.E.

5

On Aug 28, 2013, at 2:07 PM, "Drew Morris" <dmorris(--nospam--at)bbfm.com> wrote:

> Can you add rock anchors into the bedrock to tie the concrete foundation 
> down? 
> On 8/28/2013 10:50 AM, Polhemus, William wrote:
>> Has anyone here got experience with a foundation for a tall vessel or 
>> stack e.g (standalone, not guyed) in a condition where there is fairly 
>> shallow bedrock? I'm looking at the possibility of such a thing. 
>> Typically I use deep pier or pile foundation, but In this case there is 
>> assumed to be bedrock at 8 to 10 feet depth below ground. I assume I 
>> could then use a "chunk" foundation bearing directly on the rock in such 
>> a case, recognizing I might need a spread there to deal with the 
>> overturning. In that case what do I need the geotechnical to tell me? 
>> William L. Polhemus, Jr. P.E. 5 
> 
> --
> 
> *Drew Morris, PE*| /Project Engineer/
> BBFM Engineers, Inc. <http://www.bbfm.com/>
> 510 L Street, Suite 200 | Anchorage, Alaska 99501
> Main: (907)274-2236 | Direct (907) 270-2240 Fax: (907)274-2520 | Web: 
> www.bbfm.com

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