Monday, January 2, 2012

Re: seaint Digest for 1 Jan 2012

The 2009 IBC generally requires deep foundations, such as drilled piers
and driven piles, to be laterally restrained at the tops by grade beams
or, sometimes, by structural slabs. If you already have a grade beam
grid, it should be possible to add short grade beams diagonally across
the "corners" of the grid to accommodate the mislocated piles. This is
a lot cheaper than adding piles.

You probably want to have a surveyor do an "as-built" pile survey, then
look at the differing conditions, sorting them by severity and then
sprcifying a "fix", with added concrete and rebar as required.

This is a notorious problem with pile jobs, unless you have proper
quality control in the field, which you apparently did not. You can
tell the contractor the old engineer's motto: "Pay me now or pay me
later". When will they ever learn? When will they eeeevvfeeerrrr
learn? (Hat Tip to Peter, Paul and Mary, who young folks probably don't
remember.)

Happy New Year, All. / eric

On 1/2/2012 12:00 AM, admin wrote:
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> seaint Digest for 1 Jan 2012
>
> Topics covered in this issue include:
>
> 1: Foundation piles deviations
> by "David Cohen (Baran Raviv)"<dcohen@barviv.co.il>
> 2: Foundation piles deviations
> by David Cohen (Baran Raviv)<dcohen@barviv.co.il>
> 3: Re: Foundation piles deviations
> by "h.d.richardson"<h.d.richardson@telus.net>
> 4: Re: Foundation piles deviations
> by "David Cohen (Baran Raviv)"<dcohen@barviv.co.il>
> 5: Foundation piles deviations<BR>Date: Sun=2C 1 Jan 2012 15:47:38 +0=
> by dcohen@barviv.co.il
>
>
>
> --------------------------------------------------------------------------
> 1 Message:0001 1
> --------------------------------------------------------------------------
> Subject: Foundation piles deviations
> From: "David Cohen (Baran Raviv)"<dcohen@barviv.co.il>
> To:<seaint@seaint.org>
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> Engineers
>
> I have a building in construction phase, as the designer, the contractor
> and the client are sending the as-made location of the foundation piles.
>
> The piles were done by CFA Method, 70cm diameter, 15m depth.
>
> Almost each of the pile was done in deviation from the original design
> location I'd designed, about 2% to 20%
>
> Do you know a kind of rectification for this kind of installation
> errors, or just to execute some other ones?
>
> Executing other ones will be very complicated; I'm looking for other
> smarter solutions.
>
> Thanks.
>
> =20
>
> David Cohen
>
> Mobile-054-5515105
>
> Office-03-9775278
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> Fax-03-9775232
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> www.barangroup.com
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