Soil report - How to understand it?

Hello,

I have attached the soil report for our property. Of course, I will discuss this again soon with a [GÜ]. Nevertheless, I would like to know in advance what to expect.

How is the report to be understood? What needs to be done for a new building without a basement? I do not fully understand the recommendations. Can someone briefly explain this to a layperson?

Thank you very much.

Hello,

can no one explain to me what is written there?
Are these rather "standard" things or are more specific recommendations given?

It is clearly stated that a cushion of 70cm is recommended. At the same time, the house should definitely be built 30cm above the HGW. Due to the (missing) permeability, you may need to construct soakaways.

so without putting my hand in the fire *ahem my studies were a few years ago - you have, as you can read, a silty soil. Silt lies between sand (= permeable to water) and clay (= impermeable). Strongly silty therefore means that water seeps poorly or not at all.
Pore space water-saturated = like a fully soaked sponge. With heavy rain saturation up to the property surface = nothing drains, if your property has no slope, you'll end up with a pond...

And you have to either replace soil under the house or add a cushion, because on such floating soil you shouldn't build, and at the latest with frost and saturated pore space you'll have a problem. Ice expands etc pp.

Just as a first approach for you why you can't just start building.

For the foundation recommendation: What is the difference between the two variants? What is meant by a floating cushion foundation? Is variant 1 basically "piling up" and variant 2 replacing the soil? The whole thing doesn't sound very positive at first...

The difference is exactly what you wrote. I have no idea what a or b cost. Are there neighbors? Just ask them how it is for them. Otherwise, it is not "bad" at first, just more effort and costs. And you can already expect that when planting, you will also have to see which greenery feels comfortable in such soil. For the technical construction stuff, there are others here who know about it, that is not my area.