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Author(s):	Henke, Sascha
Title:
Abstract:	In diesem Beitrag wird im Rahmen einer numerischen Variationsstudie der Einfluss von Reaktionspfählen auf das Last-Verformungs-Verhalten des Probepfahls im Rahmen von statischen Pfahlprobebelastungen untersucht. Hierbei werden die Einflussfaktoren lichter Abstand der Pfähle untereinander, Pfahllängen, Länge der Reaktionspfähle im Verhältnis zur Probepfahllänge sowie die Anzahl der Reaktionspfähle untersucht. Es zeigt sich, dass bei einigen Konfigurationen die Empfehlungen des Arbeitskreises “Pfähle” (EA Pfähle) der Deutschen Gesellschaft für Geotechnik e. V. (DGGT) hinsichtlich des einzuhaltenden Mindestabstands der Pfähle zueinander nicht ausreichend sind, um einen Einfluss der Reaktionspfähle auf das Tragverhalten des Probepfahls zu vermeiden. Numerical investigation on the influence of reaction piles regarding static load test results The present paper investigates the influence of reaction piles on the load-settlement behavior of the test pile during static load testing by means of a numerical study using FEM. In this investigation mainly the parameters distance between piles, pile length, length of reaction piles in comparison to the test pile's length as well as the number of reaction piles are varied. It is found out that the recommendations of the working group piles (EA Pfähle) regarding the minimum distance between test and reaction piles is not sufficient to avoid an influence of the reaction piles on the test pile's bearing behavior.
Source:	geotechnik 44 (2021), No. 1
Page/s:	14-23
Language of Publication:	German

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