Ground pressure of parking near house wall

[extcon]

I'm considering building a pool and will have to sacrifice a garage (the pool needs to be on the driveway). The cars will then need to be parked at the short side of the house. How much pressure will there be against the basement wall if parked close to the house wall, 40-50 cm away? We have a fairly deep basement, about 2.60 m, with a light concrete structure and the short side of the house is about 8 m. On the inside of the basement wall, there are two "pillars" which I assume are to support the basement wall against "collapsing inward". The same type of pillars are around all the basement walls of the house along with two metal braces on the long sides. How do you determine if and how far from the house you must park? I assume the pool won’t press against the house in the same way since it will have casting around it?

 

[witten]

Can you get hold of the calculations of the källarväggen?

 

[extcon]

Can you get hold of the calculations for the basement wall?

Doubtful. I "think" the house is a house model 1.5 stories that they've based it on and built with a basement instead of a slab from some house manufacturer, built in 1969. I will check if there is anything on the drawings but I recall that there are no specific calculations.

 

[witten]

They are in that case in the municipality's archives, just ask them. You want to find information about the overload the walls are designed for. It should be at least 250 kg/m2.

 

[extcon]

Good info. What does 250 kg/m2 mean? Is it the ground pressure against the foundation wall/basement wall? I remember from construction lessons that ground pressure increases linearly with depth, but I don't know how vertical point loads at the ground surface nearby affect it. In the picture, the area in question is visible. The pool is intended to be where the red car is, and two cars are intended to be parked side by side in line with the short side of the house "this side" of the red car in the picture.

 

[witten]

It is the ground pressure from the tires to the surface of the ground and the figure is from the building code for vehicles up to 3 tons. To extract the horizontal load against the wall, you recalculate it with models for earth pressure.

You remember correctly, the earth pressure from the earth's weight increases linearly with depth, but the traffic load is constant over the height of the wall and is calculated as load*earth pressure coefficient*wall height.

 

[extcon]

Wow, do I understand correctly that if the wall is designed for 250 kg/m2 it's okay with earth pressure + load from car(s) next to the wall with the given dimensions?

Can I take the opportunity to ask, since new drainage and foundation insulation are planned, if it's possible to make some measure for a new parking space depending on whether I get information about the wall/retaining wall's design or not and what it shows?

 

[witten]

Yes, in that case, parking is fine all the way up to the facade.

The measure made possible by the drainage is light filling, such as Leca or Hasopor. It also insulates the wall as a bonus.

 

[extcon]

Thank you very much

 

[extcon]

Yes, in that case, parking all the way up to the façade is fine.

The measure enabled by the drainage is lightweight filling, like Leca or Hasopor. It also insulates the wall as a bonus.

Perhaps getting ahead of things, but what do you do if there is missing information or the dimensioning is for a lower load than 250 kg/m2? Avoid parking, but is there another measure you can take?