What would be your charge per piling to stake 1000 pilings in a 3,600 sq. ft. area?
How many could your crews set in a day, including horizontal location and vertical grade?
How in the world can they get that many pilings in such a small area? One every 3.6 sq ft?
They'll be displacing dirt all over the place, just moving the one they just drove. No way will they stay put. I'd be looking for another structural engineer, or at least another site.
No thanks. But to set up a perimeter grid on key colume lines would be, hmmmmm lemme think.... and they want grade... hmmmmm
good luck
I didnt believe it either, but its been confirmed. Its for a pipeline processing facility. These are 5.5" pilings.
$1000 per day. 75-100 per day.
add $800 to calc positions.
I recently staked a tee shaped building (hospital expansion) that was pre-fab, in 4 sections roughly 30x50 each. It was to sit on piers that were on some very oddball grid, about 4-8 ft apart. But they were concrete piers in sono tubes, and they just drilled.
They wanted me to stake them all for NEZ. I talked them into just staking the perimeter grid lines on an offset, for key locations. All building corners (pier c/l), and a couple interior lines. Then I provided them with a very clear and concise sketch of what I staked. And one bench mark.
Very very odd construction for these parts. I guess the building costs were lower??
My total bill was in the $4.5K range (at normal hourly rates for a good client), and included a bit of curb staking while I was there. I'm sure I could have at least doubled my fee if I gave them what they wanted. Personally, I didn't want the liability. I asked them if they wanted me to certify the pier caps, but they declined. Now it looks like a building, so I guess it was ok.
I'd ask he contractor how many pilings a day he expects to be driving. With that kind of density you probably won't be able to lay out more than a days worth at a time. Very likely you will be onsite for the duration laying out piles one at a time, so the question of cost becomes one of standby time rather than of productivity.
> What would be your charge per piling to stake 1000 pilings in a 3,600 sq. ft. area?
>
> How many could your crews set in a day, including horizontal location and vertical grade?
I think more like 200 points per day, based on clear and level site, plus a day in the office. I'm picturing a 60' X 60' grid that you can set up a perimeter on, then laying chain to get the individual points. Then grading the points with a lenker.
About $6 per point.
Matt-
Intrigued by the 60' x 60' area and the design of t yepiles.
Seems a bit tightish ?
Any pic ?
Cheers
Derek
I agree with Mark.
I had a similar request to bid some dense pilings. After talking to them it became clear that it would need to be done in phases. Stake about 1/5 of the site. Drill and concrete would then come in and do those.
Then, I come back and do the next area and so on. Because of the dense nature of the site all of the points couldn't be staked at one time. Maybe your site is small enough that the drill can get in and reach over to all the points without disturbing other points; but I would make sure that they want all of them at the same time.
It may be that multiple trips will be required and points offsite that can control placement of the pilings after the drill and concrete trucks have left.
Or they may be driving them and then you just need to be there as Mark says.
I had originally thought that it would be phased. However they want us to start Friday and stake at least 50 points and then work throught the weekend and on until we finish all 1000.
What would be your charge per piling to stake 1000 pilings in a 3,600 sq. ft. area?
How many could your crews set in a day, including horizontal location and vertical grade?
We worked on a project like that a couple of years ago, albeit not nearly as many as you'll be staking. The micropiles that we staked out were 12" piles at 2½ spacing.
With that kind of density that you're looking at, I'd have to guess that the Contractor will be drilling and setting every other shaft or every third shaft, so it's possible that no matter how you decide to stake it, some of your stakes may not last. Make sure you're covered for any possible restaking.
Mat U need to discuss with contractor there proposed modus operandi as you will need to factor call out and if it would be better if you set out control grid for them to offset from string lines. That way they know your perceived problems and vice versa. Therefore resulting in a formal documented agreed plan of attack.
RADU
That's absurd. Whatever you decide to do make sure you have a tightly worded written scope so you can charge for all the out of scope work and restaking. I'm guessing its going to take them about 15 minutes after you start to figure out that it's not going to work.
10 minutes per point x 1000 points = 10000 ÷ 60 = 166.66 x ???/per hour = Total
At least $25,000
$ 5200 stake out and office calcs .
I have done a ton of piling layout, from auger cast to drilled to pounded, to cut-off's. With that tight constraints to work in that you mentioned, I would suggest setting up a perimeter grid so the contractor can intersect string lines for each location, if they are not sporatically located. Also consider coming back to mark cutoffs if thats the case, as well as doing asbuilts on the piling. I have some great spread sheets for doing piling asbuilts to give the contractor the tolerances of the locations if required by the structural engineer. Find out if the locations need to be certified or asbuilt data to the engineer certifying the project. There is a ton of very costly liability in doing piling stakeout!
That being said, my guess is that these are probably auger piles. There is no way for the auger machine to drive around all of those hubs/nails or whatever to work around if all the pile locations are staked at once. My advise is to talk with the contractor running the job and get his input, and be sure you understand their procedures for installation.
> What would be your charge per piling to stake 1000 pilings in a 3,600 sq. ft. area?
>
> How many could your crews set in a day, including horizontal location and vertical grade?
Depends. Not a lot of room for offsets other than the line of pilings. I suppose it could be done in two or three days with two men and a robot. That will give you x,y, and z for ease.
Personally, I'd estimate it and tell them it's $125/hr with a minimum 8 hours. Stuff like that takes what it takes.
You already know this though. 🙂
There is no way for the auger machine to drive around all of those hubs/nails or whatever to work around if all the pile locations are staked at once
This is similar to some I've worked with recently. They just sit in one spot and drill a number of holes. Not sure that's what is going to happen, just guessing. This rig is a little less robust than the last few I was around.
I did lay out 84 pilings for a house and never needed to return. Kind of was suprised.
> That being said, my guess is that these are probably auger piles.
Yes they are auger piles. I start the job tommorow.
