To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
Subject: RE: Augercast piles
From: Harold Sprague <harold.sprague(--nospam--at)neenan.com>
Date: Mon, 17 May 1999 08:49:23 -0600
Chapter 6 in Dowrick's, "Earthquake Resistant Design" is very informative in
this area. You will have bending in the pile, and I design auger cast piles
as if they were a caisson.
A 16" auger cast pile is very difficult to reinforce with a cage. I would
tend to use an 18" auger cast pile just to facilitate a larger cage. Keep
in mind that the cage is floated in after the grout is in place.
A good specification is vital. Also limit the contractors who can do the
work, and call the references. There are only a few "qualified" auger cast
pile contractors. There are many who will bid the work.
The Neenan Company
From: Edward Jonson [mailto:edjonson(--nospam--at)email.msn.com]
Sent: Saturday, May 15, 1999 8:25 AM
Subject: Augercast piles
I have a project in zone 3 with augercast piles, and the soils engineer has
given me the following design criteria: 16 inch dia piles, allowable load
100 K, depth to fixity 10 feet.
My question is, is there a minimum amount of vertical reinforcement?