Akademik Veri Yönetim Sistemi
VII. International Turkic World Congress on Science and Engineering , Priştine, Kosova, 13 - 15 Kasım 2025, ss.1-10, (Tam Metin Bildiri)
The
article presents a method to determine the clay oedometric (constraint) modulus
M (Eoed) based on settlement and pore water pressure measurement of
the test embankment load, This study presents an evaluation of field
measurement data from a test embankment, constructed on a soil profile improved
with deep soil mixing columns (DSM), to determine the oedometric deformation
moduli M of underlying clay layers. The soil improvement by DSM, extending to a
depth of 15m was implemented to mitigate liquefaction risks. This depth of
improvement dictated the subsequent behavior of deeper soil strata. The
research revealed that the soil profile consisted of interbedded sandy and
clayey alluvial deposits down to the improved depth, transitioning to a more
homogeneous geological structure at greater depths. The test embankment was
designed to simulate realistic behavior under project structures. Prefabricated
vertical drains (PVDs) were installed to accelerate consolidation. Pore
pressure was recorded using piezometers and settlement measurements using magnetic extensometers, and settlement plates.
Oedometric deformation modulus M obtained using correlations and oedometric
modulus M derived from in-situ compression and pore water pressures are
presented. Determining clay oedometric
modulus M from the settlement and piezometer results of the
clay soil under the test embankment gives more precise results than
correlations.