Pålning cost

[bossespecial]

Asked the neighbors and nobody had to do any pålning and their houses are also quite stable as they told me.
So either I am so unlucky or they are trying to fool me to earn some extra.

Or your neighbors might be the unlucky ones since they didn’t do a geotechnical survey?
You have done it the right way, and now you know the geotechnical properties. Piling is the way to do it according to the survey. I suggest that you ask the contractor why all the extra ground work due to the piling.

 

[aksgir]

Or your neighbors might be the unlucky ones since they didn’t do a geotechnical survey?
You have done it the right way, and now you know the geotechnical properties. Piling is the way to do it according to the survey. I suggest that you ask the contractor why all the extra ground work due to the piling.

Hi which cost is for Ground work out of the below(P.S These charges are over and above the already told 350 000 Kr)

Extra Uppackning för huset efter geoundersökning för pålning 220 ton uppskattat, 85250:-
Etablera pålning, 11500:-
Pålar, 27 st uppskattat, 18360:-
Pålmeter, 300m uppskattat, 144375:-
Förstärktplatta 130m2, 91000:-
Tomtplanering 4 m runt grund, överskottsmassor lämnas på hög.
Summa 350 485kr + UE påslag 10% (35 048kr) = 385 533kr

 

[bossespecial]

I think I read it the wrong way. But this is what I was curious about. Did the survey destroy that much of your plot that you need to add that much filling? By adding weight on top of the existing soil might lead to settlement around your house.

”Extra Uppackning för huset efter geoundersökning för pålning 220 ton uppskattat, 85250:-”

 

[patrikd84]

Yes just across the street there is a mountain. I can see a little rock in the middle of my tomt also but not sure if thats part of a mountain or is just a rock.

Survey was done with a machine and the guy had computer on his machine to do some sort of geo measurements and he said they dont need to take any clay to send it to lab. Since their system measures everything while drilling in.

Neighbors did do geotechnical and didn't find any problems with the soil.

If there was a driller on site which checked the status of the clay, shouldn’t the results from the measurements be in the report? Or maybe you just got a summery? Cause you cant design piles based on the info you have provided.

Was there only one drilling hole or did they check in different locations of your site?

If your neighbours did a survey, it probably will tell why they did not pile. Maybe closer to rock? Maybe they dug down? Maybe smaller house? Or the clay actually is better there.

 

[bossespecial]

Does the report mention anything about the value ”cuk”(undrained shear strength of the soil)? If not, the piles will be designed with a very low value of the soil. This value determine how ”strong” the pile is. For a ordinary house the total cost of this assumption is negligible since the loads are often very small.

 

[aksgir]

Does the report mention anything about the value ”cuk”(undrained shear strength of the soil)? If not, the piles will be designed with a very low value of the soil. This value determine how ”strong” the pile is. For a ordinary house the total cost of this assumption is negligible since the loads are often very small.

This is the only report I got

AVVÄGNING
Ingen avvägning är utförd.

JORDLAGERFÖLJD.
Jorden i de undersökta borrpunkterna består lös till mycket lös lera av lös till mycket lös lera
innan stopp för berg eller block vid 9,5 till 11 meters djup.
Redovisade sonderingsstopp anger stopp med hänsyn tagen till respektive sonderingsmetod.

GRUNDVATTEN.
Grundvattensituationen har inte undersökt.

STABILITET.
Onormala stabilitetsproblem i samband med planerade byggnader bedöms inte vara aktuellt.

SÄTTNINGAR.
Lös lera är sättningskänsligt för lastökningar. För normalkonsoliderad lera innebär en lastökning
med 10 kPa att konsolideringssättningar inträffar med ca 3-5 cm per meter lös lera.

GRUNDLÄGGNING
All organisk jord samt eventuellt annat för grundläggningen otjänligt material avlägsnas varefter
vi rekommenderar att grundläggning utförs med pålar enligt BFS 2011:10, EKS 10,
Geoteknisk kategori 1. Dimensionering enligt § 15, tabell I-1.
Sonderingsstoppen får inte sättas lika med pålstopp, normalt tränger en påle djupare än
sondborren.

Geotextil skall utläggas som materialskiljande lager mellan schaktbotten och dränerande och
kapillärbrytande lager.
För schaktning i övrigt hänvisas till skriften ”Länshållning vid schaktningsarbete” SBEF,
Vägforskningsgruppen 1985 samt till Arbetarskyddsstyrelsens handbok H 13, ”Schaktning i
jord”.

 

[Byggglädje]

Hi

I will share my experience for our house that we piled.
One story house 130square meters, 23 piles 3-6 m. Extar cost for Piling 236000 SEK.
In this it is included piles ,labour, extra armouring. Biggest cost was time spent on the extra armour in the foundation.
I believe the cost estimate you have is in the same level that I accually paid for our house in 2016.
Our plot was mostly lose clay.

We live in a newly developed area. 37 plots, only me and two of my neighbours had to pile.
But we used different geotechnician. The plot beside our was just as bad but they move around the house a bit until the found just a space where the ground was solid enough. Some times it is beneficial to get second opinion.

Good luck

 

[aksgir]

e story house 130square meters, 23 piles 3-6 m. Extar cost for Piling 236000 SEK.

Hi

I will share my experience for our house that we piled.
One story house 130square meters, 23 piles 3-6 m. Extar cost for Piling 236000 SEK.
In this it is included piles ,labour, extra armouring. Biggest cost was time spent on the extra armour in the foundation.
I believe the cost estimate you have is in the same level that I accually paid for our house in 2016.
Our plot was mostly lose clay.

We live in a newly developed area. 37 plots, only me and two of my neighbours had to pile.
But we used different geotechnician. The plot beside our was just as bad but they move around the house a bit until the found just a space where the ground was solid enough. Some times it is beneficial to get second opinion.

Good luck

But for me extra cost for pålning itself is 400 000Kr and total cost for Ground work becomes 750 000Kr. Do you think this is okay?

 

[Byggglädje]

Our total cost for the foundation was 600000 sek. 236000 was the extra for piling. Your house is bigger and a garage. So yes compared to what we paid it seems reasonable. That said maybe we both will pay/paid to much. However I am rather poor and sleep well then rich and sleep poorly.

 

[aksgir]

Our total cost for the foundation was 600000 sek. 236000 was the extra for piling. Your house is bigger and a garage. So yes compared to what we paid it seems reasonable. That said maybe we both will pay/paid to much. However I am rather poor and sleep well then rich and sleep poorly.

Thanks.. well said

 

[patrikd84]

I think its all in order, however its strange that the report doesnt contain the data from the measurements of the soil parameters - since they obviously have determined the soil as lose and much lose clay (which is dependent on the value cuk). The number of bore holes also influence how large load each pile is allowed to carry, so this information is also of importance when designing the piles. But if what @bossespecial said is true regarding the utilization of the piles, this might not be so important in this case.

 

[aksgir]

I think its all in order, however its strange that the report doesnt contain the data from the measurements of the soil parameters - since they obviously have determined the soil as lose and much lose clay (which is dependent on the value cuk). The number of bore holes also influence how large load each pile is allowed to carry, so this information is also of importance when designing the piles. But if what @bossespecial said is true regarding the utilization of the piles, this might not be so important in this case.

I will ask the Geo Technical company to provide the more detailed report with parameters.

 

[aksgir]

I will ask the Geo Technical company to provide the more detailed report with parameters.

Here comes the parameters, don't understand anything though.

 

[bossespecial]

Ask them to give you the value cuk.

 

[patrikd84]

Atleast now we can see that they did 3 holes, which is good.

Though they have noted silt in the drilling results yet its not mentioned in the report under ”jordlagerföljd”.

Not used to interpret these results though, but I would guess that it id the results of a ”vingsondering”.