International Journal of Geomechanics,
Journal Year:
2023,
Volume and Issue:
23(11)
Published: Sept. 7, 2023
Since
the
ground
reaction
curve
(GRC)
is
a
useful
tool
for
evaluating
formation
deformation
and
load
acting
on
an
underground
structure,
it
critical
to
determine
GRC,
especially
under
small
strain
conditions.
In
this
paper,
new
analytical
model
considering
progressive
development
of
loose
soil
was
proposed
describe
GRC
in
trapdoor
tests.
The
composed
undisturbed
zone,
unloading
failure
self-weight
zone.
key
parameters
were
determined
through
existing
literature.
addition,
formulas
calculating
lateral
pressure
coefficient
height
zone
derived,
respectively.
Considering
continuity
principal
stress
deflection
assuming
that
three-hinged
arch
with
reasonable
axis,
transfer
expression
deduced.
Then,
based
limit
equilibrium
theory,
vertical
obtained.
effectiveness
verified
by
comparing
calculation
results
tests,
theoretical
model,
simplified
model.
Finally,
influence
discussed
detail.
This
work
provides
meaningful
reference
estimating
GRC.
Computer Modeling in Engineering & Sciences,
Journal Year:
2024,
Volume and Issue:
139(3), P. 2835 - 2863
Published: Jan. 1, 2024
The
present
work
aims
to
assess
earthquake-induced
earth-retaining
(ER)
wall
displacement.
This
study
is
on
the
dynamics
analysis
of
various
designs
in
hollow
precast
concrete
panels,
reinforcement
facing
and
gravity-type
walls.
finite
element
(FE)
simulations
utilized
a
3D
plane
strain
condition
model
full-scale
ER
walls
numerous
nonlinear
analyses.
seismic
performance
different
models,
which
includes
panels
walls,
was
simulated
examined
using
FE
approach.
It
also
displays
comparative
studies
such
as
stress
distribution,
deflection
wall,
acceleration
across
height,
lateral
displacement,
pressure,
backfill
plastic
strain.
Three
components
created
were
found
throughout
this
research
procedure.
One
granular
backfill,
while
other
wall-facing
panel
base
foundation.
dynamic
response
effects
varied
have
been
studied.
discovered
that
significantly
impacts
displacement
proposed
analytical
model's
validity
has
evaluated
compared
with
scientifically
available
data,
American
Association
State
Highway
Transportation
Officials
(AASHTO)
guidelines
results
based
simulation.
observations
indicate
prefabricated
most
feasible
option
due
its
lower
high-stress
distribution
two
types.
methodology
establish
standards
for
future
analogous
investigations
professionals,
particularly
light
increasing
computational
capabilities
desktop
computers.
International Journal of Geomechanics,
Journal Year:
2023,
Volume and Issue:
23(11)
Published: Sept. 7, 2023
Since
the
ground
reaction
curve
(GRC)
is
a
useful
tool
for
evaluating
formation
deformation
and
load
acting
on
an
underground
structure,
it
critical
to
determine
GRC,
especially
under
small
strain
conditions.
In
this
paper,
new
analytical
model
considering
progressive
development
of
loose
soil
was
proposed
describe
GRC
in
trapdoor
tests.
The
composed
undisturbed
zone,
unloading
failure
self-weight
zone.
key
parameters
were
determined
through
existing
literature.
addition,
formulas
calculating
lateral
pressure
coefficient
height
zone
derived,
respectively.
Considering
continuity
principal
stress
deflection
assuming
that
three-hinged
arch
with
reasonable
axis,
transfer
expression
deduced.
Then,
based
limit
equilibrium
theory,
vertical
obtained.
effectiveness
verified
by
comparing
calculation
results
tests,
theoretical
model,
simplified
model.
Finally,
influence
discussed
detail.
This
work
provides
meaningful
reference
estimating
GRC.
