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RE: Subgrade Modulus

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John,

This would be a good time to try out the SEAOC email archive search
feature.  There were several replies which discussed this topic last
month.

Regards,
Ed Marshall, PE
Simons Engineering
Atlanta

> -----Original Message-----
> From:	Nguyen, John [SMTP:NguyenJ(--nospam--at)bentleycompany.com]
> Sent:	Tuesday, March 10, 1998 4:51 PM
> To:	'wish(--nospam--at)cwia.com'
> Cc:	'seaoc(--nospam--at)seaoc.org'
> Subject:	FW: Message to those Lurking in the shadows:>)
> 
> 
> > Hi Dennis,
> > 
> > I am still here and "lurking" on seaoc listserv. I am short on time
> to
> > response or participate in most of threads. It's hard for me to go
> > thru
> > all email messages I got daily and keep my focus on the job.
> > 
> > There is one question I'd like to follow up on previous post by
> Shafat
> > about the range of values of subgrade modulus, k. According to
> Bowles
> > (3rd Edition), k varies from 200-500 kcf to 150-300 kcf for clayey
> > medium sand to silty medium sand, respectfully. Can one safely use
> > upperbound values for foundation design which is very sensitive to
> > differential deflection.  Also, has anyone specs or use pre-loaded
> the
> > foundation prior setting the equipment to control the diff.
> > deflection?
> > Any comments or suggestions would greatly appreciated.
> > 
> > John Nguyen, PE
> > The Bentley Company
> > 
> > 
>