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Author(s):	Dobrowolsky, Markus; Vrettos, Christos
Title:
Abstract:	Die vorliegende Arbeit beschäftigt sich mit den Zwangsbeanspruchungen auf geotechnische Bauwerke infolge Quellen von feinkörnigen Böden. Anhand von Versuchsergebnissen an neu entwickelten Ödometergeräten werden für einen quellfähigen teilgesättigten Kaolinit-Ton das Volumenänderungsverhalten sowie die einhergehenden Spannungsänderungen in Abhängigkeit von dem Sättigungsgrad und der Porenzahl untersucht. Aus den Versuchsergebnissen werden empirische Beziehungen hergeleitet, die in ein allgemeines Finite-Element-Programm implementiert werden. Mit diesem Modell werden anschließend die Zwängungen auf ein im Boden eingebettetes Gründungselement als Konsequenz der Feuchteausbreitung analysiert. Swelling behaviour of a partially saturated kaolinite clay: Laboratory tests, model and numerical simulation. The paper addresses the constraints imposed on geotechnical structures due to swelling of fine-grained soils. The volume change behaviour and the associated changes in the stress state for an expansive kaolinite clay are experimentally investigated in specially developed oedometer devices in dependence on the degree of saturation and void ratio. Empirical relationships are derived from the test results that are implemented in a finite element code. Using this model, the constaints imposed on a foundation element embedded in this soil due to moisture diffusion are analyzed.
Source:	geotechnik 34 (2011), No. 1
Page/s:	32-41
Language of Publication:	German

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