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Construction question
Posted on 3/18/18 at 6:23 pm
Posted on 3/18/18 at 6:23 pm
I’ve seen pilings being driven into the house pads on some sites around False River. Saw the same thing at the new correctional facility being built in Thibodeaux. They cut the pilings off a foot or so above the ground. What is the purpose for this?
5
Posted on 3/18/18 at 6:33 pm to tigerinthebueche
When I was in the house raising business, pilings driven to refusal (wood, concrete block, etc.) were the base of a spread footing in areas of questionable soil.
This post was edited on 3/18/18 at 6:34 pm
Posted on 3/18/18 at 6:40 pm to tigerinthebueche
quote:
They cut the pilings off a foot or so above the ground. What is the purpose for this?
house foundation
Posted on 3/18/18 at 6:46 pm to tigerinthebueche
The ground at the surface is to soft to support the home so the pilings are driven down to hard ground. I have see them push a 25 foot pole down then stack another 25ft pole on that one and push a second 25ft down and still not hit hard ground. This was in Metarie.
Posted on 3/18/18 at 6:53 pm to MotorBoater
quote:
The ground at the surface is to soft to support the home so the pilings are driven down to hard ground.
piles aren't always meant to reach a stiffer soil for bearing. Especially in Louisiana skin friction is where piles get there capacity from.
Posted on 3/18/18 at 6:58 pm to tigerinthebueche
They'll drive pilons till they hit something hard or till they get so many hits to move it a measured distance, typically a foot. They then cut them to where the bottom of the slab will be. This leaves the pilons sticking up over the ground and they fill it in.
When I stabbed the pilons for the footings of our fab shop we had 2 14" I beams 65' long stacked on top each other. The first pilon went down about 15' on its own weight.
When I stabbed the pilons for the footings of our fab shop we had 2 14" I beams 65' long stacked on top each other. The first pilon went down about 15' on its own weight.
Posted on 3/18/18 at 8:01 pm to tigerinthebueche
They hit refusal and had to be cut. They also leave them up above the ground to tie into the slab. Piles aren’t just made for compression loads.
This post was edited on 3/18/18 at 8:04 pm
Posted on 3/18/18 at 8:29 pm to 34venture
Thanks all.
So is this something new? Don’t recall ever seeing it done before. Especially in Thibodeaux.
So is this something new? Don’t recall ever seeing it done before. Especially in Thibodeaux.
Posted on 3/18/18 at 8:30 pm to tigerinthebueche
quote:
So is this something new?
no
Posted on 3/18/18 at 8:40 pm to tigerinthebueche
like civil said, no. Just depends on the structure that is going to built on top of said piles.
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