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Standard ÖNORM EN ISO 22282-4 1.7.2021 preview

ÖNORM EN ISO 22282-4

Geotechnical investigation and testing - Geohydraulic testing - Part 4: Pumping tests (ISO 22282-4:2021)

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STANDARD published on 1.7.2021


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The information about the standard:

Designation standards: ÖNORM EN ISO 22282-4
Publication date standards: 1.7.2021
SKU: NS-1028896
The number of pages: 32
Approximate weight : 96 g (0.21 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM

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Earthworks. Excavations. Foundation construction. Underground works

Annotation of standard text ÖNORM EN ISO 22282-4 :

Dieses Dokument stellt Anforderungen an Pumpversuche als Teil der geotechnischen Erkundung nach EN 1997-1 und EN 1997-2 auf. Dieses Dokument gilt für Pumpversuche in Grundwasserleitern, deren Durchlässigkeit so ist, dass das Abpumpen aus einem Brunnen - in Abhängigkeit von den Bedingungen des Baugrunds und dem Zweck - zu einer Absenkung der piezometrischen Höhe innerhalb von Stunden oder Tagen führen kann. Das Dokument behandelt Pumpversuche in Locker- und Felsgestein. Bei den durch dieses Dokument abgedeckten Versuchen handelt es sich um diejenigen, die zur Auswertung der hydrodynamischen Parameter eines Grundwasserleiters und von Brunnenparametern vorgesehen sind, z. B.: - allgemeiner Durchlässigkeitsbeiwert des Grundwasserleiters; - Einflussradius des Pumpens; - Förderrate für einen Brunnen; - Auswirkung in Bezug auf die Absenkung in einem Grundwasserleiter während des Pumpens; - Skin-Faktor; - Brunnenspeicherkoeffizient; - Auswirkung in Bezug auf die Wiederherstellung in einem Grundwasserleiter nach dem Pumpen.

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