Frontiers in Earth Science,
Journal Year:
2024,
Volume and Issue:
12
Published: Dec. 9, 2024
The
design
of
check
dam
openings
for
debris
flow
control
has
been
identified
as
a
longstanding
challenge,
with
no
definitive
solution
yet
identified.
In
this
study,
quantitative
analysis
the
efficacy
dams
varying
opening
rates
is
presented.
Field
investigation
data
67
located
in
Wenxian
County,
Gansu
Province,
were
utilized
to
gain
preliminary
understanding
their
running
state
and
damage
situation.
Building
upon
this,
five
ranging
from
2.1%
10.4%
designed
subjected
testing.
Parameters
including
volumetric
water
content,
pore
pressure,
deposit
morphology,
particle
size
distribution
analyzed
investigate
effect
on
control.
results
showed
that:
1)
As
rate
increased,
peaks
content
pressure
behind
first
decreased
then
stabilized.
When
was
increased
6.3%
or
higher,
these
parameters
reached
stable
values.
2)
Check
different
all
demonstrated
good
effects
retaining
coarse
sluicing
fine,
resulting
average
coarsened
by
2.65
times.
This
coarsening
primarily
attributed
an
increase
proportion
retained
particles
within
2–5
mm
range.
3)
An
optimal
range
4.2%–6.3%
effective
Compared
other
dams,
Dam
II
4.2%
exhibited
superior
performance
mitigating
energy
intercepting
particles,
but
it
imposed
stringent
strength-related
requirements.
Frontiers in Earth Science,
Journal Year:
2025,
Volume and Issue:
13
Published: April 17, 2025
Rainfall-induced
geological
disasters
are
widespread
in
the
Jianghuai
region
of
China,
endangering
human
lives
and
socioeconomic
activities.
Anhui
Province,
a
hotspot
for
these
disasters,
warrants
thorough
analysis
temporal
spatial
distribution
their
correlation
with
rainfall
effective
forecasting
warning.
This
study
divides
Province
into
Dabie
Mountains,
southern
other
areas
based
on
different
background
conditions,
establishes
threshold
warning
models
each.
We
reconstructed
collection
disaster
precipitation
records
data
from
2008
to
2023.
Using
binary
logistic
regression,
we
analyzed
between
factors
selected
optimal
attenuation
parameters
area,
determined
critical
levels.
Results
show:
(1)
Landslides
collapses
main
types,
mostly
occurring
high
altitude
like
concentrated
rainy
season
June
-
July
each
year;
(2)
Rainfall
is
inducer,
both
single
heavy
processes
sustained
influencing
occurrence,
through
combined
effect;
(3)
Effective
significantly
correlated
day
previous
8
days
rainfall.
The
coefficients
regions
0.60,
0.66,
0.61,
respectively.
shows
that
setting
fine
tuned
better
than
province
wide
threshold.
With
79%
forecast
accuracy,
it
can
provide
scientific
basis
meteorological
risk
Province.
Frontiers in Earth Science,
Journal Year:
2024,
Volume and Issue:
12
Published: Sept. 9, 2024
In
low-resolution
remote
sensing
images
under
complex
lighting
conditions,
there
is
a
similarity
in
spectral
characteristics
between
non-landslide
areas
and
landslide
bodies,
which
increases
the
probability
of
misjudgment
identification
process
shallow
bodies.
order
to
further
improve
accuracy
identification,
method
based
on
an
improved
Otsu
algorithm
multi-feature
threshold
proposed
for
temporary
treatment
project
Yangjunba
disaster
site
Leshan
City.
Using
Retinex
theory,
are
enhanced
with
local
linear
models
guided
filtering;
then,
scales
sliding
window
calculations
opening
closing
transformations
identify
potential
areas,
finally
segmented
using
algorithm.
Through
experimental
verification,
this
article
can
clearly
segment
target
object
background
after
binary
segmentation
images.
The
recognition
rate
bodies
not
less
than
95%,
indicating
that
relatively
accurate
identifying
research
area
has
good
application
effects.
Applied Sciences,
Journal Year:
2024,
Volume and Issue:
14(18), P. 8562 - 8562
Published: Sept. 23, 2024
Climate
change
has
recently
increased
the
frequency
of
landslides
in
alpine
areas.
Susceptibility
mapping
is
crucial
for
anticipating
and
assessing
landslide
risk.
However,
traditional
methods
focus
on
static
environmental
variables
to
emphasize
spatial
distribution
landslides,
ignoring
temporal
dynamics
development
context
climate
change.
In
this
work,
we
focused
dynamic
environment
factors
utilized
certainty
factor-logistic
regression
(CF-LR)
model
assess
predict
susceptibility
Taxkorgan
County,
located
Karakorum.
The
assessment
prediction
were
based
a
catalog
change-related
over
past
20
years,
causative
factors,
predicted
climatic
Shared
Socioeconomic
Pathways
(SSP1-2.6)
scenario.
results
indicated
that
elevation,
slope,
groundwater,
slope
length
gradient
(LS)
factor,
Topographic
Wetness
Index
(TWI),
valley
depth,
maximum
precipitation
key
causes
slides
below
snow
line.
causing
debris
flow
above
line
topographic
relief,
aspect,
LS
distance
river,
temperature.
accuracy
slide
was
0.92
0.89,
respectively.
area
with
medium,
high,
very
high
25.5%
Taxkorgan.
addition,
82.6%
happened
region,
49.5%
entire
covered
by
flows
susceptibility.
Moreover,
accounts
91.8%
all
flows.
Until
2060,
region’s
anticipated
become
warmer
wetter.
Slides
will
gradually
decrease
shift
eastward,
expand.
Our
findings
contribute
management
risks
at
regional
scale.
Frontiers in Earth Science,
Journal Year:
2024,
Volume and Issue:
12
Published: Oct. 1, 2024
Introduction
Dams
formed
by
landslides
may
produce
disastrous
floods
after
dam
outbursts.
However,
understanding
of
the
influence
inflow
rate
on
breaching
characteristics
landslide
dams
is
still
at
an
early
stage;
in
particular,
relationship
between
width
and
depth
are
unclear.
Methods
In
this
paper,
we
present
results
a
series
laboratory
tests
that
assessed
seven
rates
(1,
1.5,
2,
2.5,
3,
3.5,
4
L/s).
Results
discussion
The
show
for
different
similar
there
three
breach
stages
rates.
peak
discharge
gradually
increases
as
increases.
With
increasing
rate,
both
increase.
ratio
to
from
less
than
1
progressively
with
rate.
can
be
expressed
function
W=ζ1+e−kD−D0
.
shape
parameter
k
has
exponential
