Akademik Veri Yönetim Sistemi
ACTA GEOTECHNICA, cilt.9, ss.711-723, 2014 (SCI-Expanded)
Experimental and numerical investigations into
the bearing capacity of circular footing on geogrid-reinforced
compacted granular fill layer overlying on natural
clay deposit have been conducted in this study. A total of 8
field tests were carried out using circular model rigid
footing with a diameter of 0.30 m. 3D numerical analyses
were performed to simulate soil behavior using finite element
program Plaxis 3D Foundation. The results from the
FE analysis are in very good agreement with the experimental
observations. It is shown that the degree of
improvement depends on thickness of granular fill layer
and properties and configuration of geogrid layers.
Parameters of the experimental and numerical analyses
include depth of first reinforcement, vertical spacing of
reinforcement layers. The results indicate that the use of
geogrid-reinforced granular fill layers over natural clay
soils has considerable effects on the bearing capacity and
significantly reduces the lateral displacement and vertical
displacement of the footing.