Earthworks/basement construction in high groundwater areas – any experiences?

  • Erstellt am 2024-03-19 12:01:45

Allthewayup

2024-03-20 07:36:15
  • #1
If you have commissioned a company with this, don’t worry too much and leave it to the contracted company. The calculations for the groundwater lowering will probably have been done in the background. A construction excavator who has worked in groundwater more often should know about this. In my opinion, the soakaway well makes little sense as an infiltration point, unless this soakaway well is 100m away from the excavation pit. Otherwise, you are just pumping in a circle. And the soakaway well is very limited in its absorption capacity, unless it has a diameter of 2m and a correspondingly large/much infiltration area. Of course, it may be that the soakaway well is necessary because the sewer cannot take 100% of the amount to be pumped out. But that is just bureaucratic cosmetics if the red tape is taken a closer look at the water management on site. By the way, this was not the case for us. Don’t worry too much, three extraction points sounds sufficiently dimensioned. Let the two handle it and don’t panic dance over the floor – as an entrepreneur they are liable for their actions, not you.
 

hanghaus2023

2024-03-20 12:48:47
  • #2

As long as you let the water flow into the basement in time, it's not a disaster. It's best to leave an opening so that the water can get in. After completion and backfilling of the working area, close and seal this.
 

11ant

2024-03-20 15:44:00
  • #3
Bad awarding mistake on your part, you know that yourself, right? Battery-powered webcam with data SIM. There is definitely an "app" for that.
 

gregman22

2024-03-20 15:45:18
  • #4

Awarding mistake -> Yes and no... 5 GUs in the final selection; none of the 5 was ready to include earthworks in the contract
 

11ant

2024-03-20 15:52:30
  • #5

Then the contract should have gone to the sixth. Civil engineering/earthworks belong in the GC lot. What kind of architect allows construction to start under such conditions?
Service phase 5 does not consist only of drawings of connection details!
 

gregman22

2024-03-20 15:55:23
  • #6
Yes, now I am also wiser and that does not help me any further today either.
 
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