Buildings,
Journal Year:
2024,
Volume and Issue:
14(10), P. 3197 - 3197
Published: Oct. 8, 2024
Based
on
the
deep
foundation
pit
project
of
TOD
(Transit-Oriented
Development)
complex
Shaoxing
North
High-speed
Railway
Station,
influence
different
construction
stages
deformation
and
inclination
rate
adjacent
elevated
bridge
its
variation
law
are
studied
through
field
measurement
numerical
simulation.
The
process
is
optimized
by
method
reinforcement
outside
adjustment
preloaded
axial
force,
distance
bridges
summarized.
results
show
that
with
excavation
pit,
pier
pile
gradually
increases,
piers
larger
than
foundations.
As
depth
soil
force
maximum
vertical
displacement
foundations
decreases.
deeper
reinforcement,
better
control
effect
bridge.
In
actual
construction,
it
recommended
be
taken
as
pit.
It
obvious
subject
to
angle
effect,
appropriate
value
should
selected
according
site
conditions.
generally
shows
a
decreasing
trend
increase
in
between
When
close
will
affected
fluctuation
decrease.
conclusions
drawn
article
can
serve
basis
reference
for
design
provide
similar
projects.
Sensors,
Journal Year:
2025,
Volume and Issue:
25(1), P. 254 - 254
Published: Jan. 4, 2025
This
paper
investigates
the
use
of
BOTDA
(Brillouin
Optical
Time-Domain
Analysis)
technology
to
monitor
a
large-scale
bored
pile
wall
in
field.
Distributed
fiber
optic
sensors
(DFOSs)
were
deployed
measure
internal
temperature
and
strain
changes
during
cement
grouting,
hardening,
excavation-induced
deformation
secant
wall.
The
study
details
geological
conditions
DFOS
installation
process.
During
increased
by
approximately
69
°C
due
hydration
30
min
post-grouting,
while
decreased
0.5%
on
average
slurry
shrinkage.
excavation,
minimal,
but
excavation
depth
significantly
influenced
distribution,
with
continuous
compressive
observed
two
monitored
boreholes.
Two
analytical
methods,
numerical
integration
method
(NIM)
finite
difference
(FDM),
used
calculate
lateral
displacement
based
data.
results
compared
previous
monitoring
data,
showing
that
was
minimal
after
attributed
high
stiffness
demonstrates
effectiveness
DFOSs
for
complex
behaviors
construction.
The
stern
bearing
of
marine
vessels
is
subjected
to
heavy
loads
from
the
propulsion
and
shaft
systems,
making
it
highly
susceptible
wear
under
low-speed
operating
conditions.
This
study
employs
numerical
simulation
investigate
characteristics
across
initial,
transitional,
stabilized
stages.
Results
indicate
that
conditions
intensify
pressure
concentration
elevate
lubricant
temperatures
at
bottom
bearing,
leading
a
reduced
oil
film
thickness
accelerated
wear.
Over
time,
zone
progressively
expands
outward
initial
site,
aggravating
surface
damage
increasing
risk
mechanical
failure.
These
findings
provide
critical
insights
into
mechanisms
in
bearings
offer
guidance
for
improving
their
durability
low-speed,
heavy-load
