NDLI: Field and Laboratory Tests Investigating Settlements of Foundations on Weathered Keuper Marl

Content Provider	Springer Nature Link
Author	Hornig, Ernst Dieter
Copyright Year	2009
Abstract	Measured settlements of buildings on the weathered Keuper Marl appeared to be much smaller than calculated settlements, which were based on stiffness modulus from standard oedometer tests. Therefore, both special triaxial K 0-tests and oedometer tests were carried out for an accurate determination of stiffness moduli. Modulus obtained in the triaxial K 0-tests were at least two to three times the values obtained in the oedometer tests. To verify observations from the laboratory tests, the loads and the settlements of two single footings on weathered Keuper mudstone have been measured during construction of a building over 1 year. Also, a large scale footing load test with measurements of deformations were conducted on the weathered Keuper mudstone. The measured settlements of the two single footings and the tested foundation were compared with the settlements based on conventional calculations with moduli from oedometer tests and triaxial K 0-tests. Up to a foundation pressure of σv = 500 kN/m² the calculated settlement based on E S-modulus obtained from triaxial K 0-tests was found to correspond well to the measured deformation. For foundation pressure beyond 500 kN/m², the foundation response was highly non-linear and it could not be described any more with the linear-elastic model. Therefore the footing load test was also simulated by FEM analyses.
Starting Page	233
Ending Page	240
Page Count	8
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	28
Issue Number	3
e-ISSN	15731529
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-06-12
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	FEM analysis Field-measurements K0-Triaxial Large scale footing load test Mudstone Oedometer Settlement Stiffness Civil Engineering Waste Management/Waste Technology Terrestrial Pollution Hydrogeology Geotechnical Engineering
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

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