Water,
Journal Year:
2020,
Volume and Issue:
12(11), P. 3192 - 3192
Published: Nov. 15, 2020
In
recent
years,
heavy
rainfall
disasters
have
caused
frequent
damage
to
bridge
piers
due
scouring
and
resulted
in
the
fall
of
bridges
many
areas
Japan.
The
objective
this
study
was
investigate
effect
local
around
downstream
on
center
river
flowing
at
an
angle
piers.
It
found
that
when
flows
piers,
area
becomes
wider
from
upstream
because
longer
inhibition
width
positioned
perpendicular
water
flow.
depth
tends
be
smaller
than
depth.
addition,
time
onset
tilting
deformation
increases
with
water.
Designs,
Journal Year:
2023,
Volume and Issue:
7(5), P. 117 - 117
Published: Oct. 12, 2023
Globally,
most
bridges
fail
due
to
hydrological
causes
such
as
scouring
or
flooding.
Therefore,
using
a
approach,
this
study
proposes
methodology
that
contributes
prioritizing
the
intervention
of
prevent
their
collapse.
Through
an
exhaustive
literature
review,
evaluation
matrix
subdivided
into
four
dimensions
was
developed
and
total
18
parameters
were
considered,
distributed
follows:
environmental,
six
technical,
social,
economic.
This
applied
eight
with
history
problems
in
same
river
validated
through
semi-structured
interviews
specialists.
Data
collected
field
visits,
journalistic
information,
review
gauged
basin’s
historical
flow
rates,
consultations
population.
Modeling
then
conducted,
which
considered
influence
gullies
discharge
additional
HEC-HMS
HEC-RAS,
before
being
calibrated.
The
application
matrix,
is
optimal
tool
for
bridge
interventions,
revealed
five
have
high
vulnerability
scores
between
3
3.56,
three
medium
2.75
2.94.
multidimensional
can
be
adapted
similar
studies,
better
decision-making
process
important
infrastructure
interventions
riverine
bridges.
World Journal of Engineering,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 11, 2023
Purpose
This
study
aims
to
provide
a
review
for
scour
in
complex
rivers
and
streams
with
coarser
bed
material,
steep
longitudinal
slopes
dynamic
environments,
the
interest
of
safety
economy
hydraulic
structures.
The
knowledge
such
geographical
complexities
is
very
crucial
comprehensive
understanding
failures
establishing
definitive
criteria
bridge
this
major
research
gap.
Design/methodology/approach
existing
available
literature
shows
significant
work
done
case
silt,
sand
small
sized
material
but
any
substantial
gravel
size
or
above
lacking,
resulting
wide
Though
some
researchers
have
attempted
explore
possibilities
refining
models
by
adding
pier
size,
shape,
sediment
non-uniformity
armouring
effects,
which
otherwise
been
given
miss
various
researchers,
including
pioneer
field
Lacey–Inglis
(1930).
But
still,
rational
model
estimation
conditions
global
use
yet
come.
because
all
parameters
governing
not
studied
properly
till
date
as
evident
from
globally
witnessed
too,
recurrent
failure
structures
especially
bridges.
Findings
presume
that
finer
materials
move
only
result
erosion.
However,
actual
conditions,
it
has
observed
large-sized
stones
also
roll
down
cause
huge
erosion
along
river
damage
structures,
river/stream
beds
hilly
slopes.
fact
overlooked
highlighted
current
an
attempt
recognize
A
carried
out
on
number
Jammu
Kashmir,
India
also,
shown
stream
consisting
greater
than
gravel,
large
holes
ranging
1
m
5
were
created
furious
floods,
due
other
unknown
forces
channel
path
near
foundations
Originality/value
To
best
authors’
knowledge,
purely
original.
Transportation research procedia,
Journal Year:
2023,
Volume and Issue:
72, P. 1037 - 1044
Published: Jan. 1, 2023
Scour
is
one
of
the
major
causes
for
bridge
failures.
This
study
established
a
machine
learning
based
predictive
maintenance
policy
scour
risk
mitigation.
Data
used
in
this
was
provided
French
National
Railway
Company
(SNCF).
After
comparing
three
commonly
ML
algorithms,
it
found
that
extreme
gradient
boosting
(XGBoost)
algorithm
outperforms
others
and
achieves
very
encouraging
results.
Moreover,
trained
classifier
then
tested
another
40
piers
results
were
compared
with
junior
engineer's
evaluation.
Results
show
XGBoost
had
slightly
better
performance
terms
accuracy
precision.
The
proposed
methodology
paper
allows
engineers
to
determine
an
accurate
yet
rapid
way.
Report,
Journal Year:
2023,
Volume and Issue:
23, P. 500 - 507
Published: Jan. 1, 2023
<p>Problems
affecting
the
foundation
of
a
bridge
are
always
difficult
to
see
because
structure
is
on
ground
or
covered
by
water
flow.
Scouring
around
piers
and
abutments
can
lead
unpredictable
consequences
that
result
in
sudden
collapse
structure.
In
this
paper,
effect
stiffness
(before
after
repair
works}
dynamic
response
investigated.
The
results
will
help
diagnose
future.
Based
span
monitoring
before
works
combined
with
numerical
model
analysis
Vietnam,
effects
scouring
at
determined.
research
reveal
responses
make
it
possible
detect
damage
determine
whether
scour
likely
occur
vicinity
foundations.</p>
Water,
Journal Year:
2020,
Volume and Issue:
12(11), P. 3192 - 3192
Published: Nov. 15, 2020
In
recent
years,
heavy
rainfall
disasters
have
caused
frequent
damage
to
bridge
piers
due
scouring
and
resulted
in
the
fall
of
bridges
many
areas
Japan.
The
objective
this
study
was
investigate
effect
local
around
downstream
on
center
river
flowing
at
an
angle
piers.
It
found
that
when
flows
piers,
area
becomes
wider
from
upstream
because
longer
inhibition
width
positioned
perpendicular
water
flow.
depth
tends
be
smaller
than
depth.
addition,
time
onset
tilting
deformation
increases
with
water.
