ᐅ How do civil engineers determine the depth for various construction projects?

Created on: 12 Jun 2012 09:01
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wadi1982
Attention – silly question ;-)).

Soon, the excavation contractor will start work. Now I have a general question that might be amusing for the professionals:

The surveyor does the rough staking and sets a reference elevation point (e.g., top edge of the finished floor).

How deep the hole needs to be is determined by the basement builder (the above-mentioned reference point minus the thickness of the ground floor slab, minus the thickness of the basement ceiling, minus the room height, minus the thickness of the base slab).

That part is clear to me. Now I’m just wondering, how does the excavation contractor know how deep to dig?
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yoyo69
13 Jun 2012 15:10
The device without a name is technically called a leveling instrument. On roads, you often see workers wearing safety vests who are surveying the road, as well as the surrounding landscape or properties in general.