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Construction site lexicon


Construction site terms simply explained

A diaphragm wall is a reinforced concrete wall in the subsoil that protects the excavation pit from collapse (excavation pit protection). It remains in the ground and can later be used as a load-bearing wall for the building. Depending on the requirements, it can also be designed in such a way that it prevents groundwater from entering the excavation pit and later the basement of the building (tight design).

Anchors are used to secure the diaphragm wall against the pressure of the soil (earth pressure) and water (water pressure) behind it. This prevents the diaphragm wall from tipping forward during the construction phase. As soon as the basement slabs are erected, the diaphragm wall is braced by them and the anchors can be removed again.

Absorption wells (also infiltration wells) are shafts in the ground that are used to infiltrate water. In the case of the Grünblick construction site, the groundwater table is higher than the lowest point of the excavation pit. Therefore, it is necessary to lead the groundwater out of the excavation area. Extraction and absorption wells are used for this purpose.

A foundation is the transition from the building to the ground. The task of the foundation is to absorb loads from the structure and pass them on to the subsoil without damage. This can be done through various measures or a combination of measures, such as base plates, drilled piles, strip foundations, etc. At the Grünblick construction site, a combined pile and slab foundation is used.

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