Simulating liquefaction-induced resuspension flux in a sediment transport model
Water Research,
Год журнала:
2024,
Номер
261, С. 122057 - 122057
Опубликована: Июль 6, 2024
Язык: Английский
Effects of xanthan gum treatment on sedimentation and consolidation of kaolinite aggregates
Journal of Rock Mechanics and Geotechnical Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 1, 2025
Язык: Английский
The mechanical properties of Yellow River floodplain silt considering the influence of intermediate principal stress
Marine Georesources and Geotechnology,
Год журнала:
2025,
Номер
unknown, С. 1 - 14
Опубликована: Март 25, 2025
This
study
reveals
the
mechanical
behavior
of
silt
in
Yellow
River
floodplain
under
3D
stress.
A
true
triaxial
apparatus
was
used
to
conduct
consolidated
drained
shear
tests
different
intermediate
principal
stress
coefficients
(b)
and
consolidation
confining
pressures
investigate
influence
on
deformation
strength
silt.
The
stress-strain
curves
exhibited
strong
strain-hardening
characteristics
during
shearing.
Due
enhanced
particle
interlocking
microstructural
reorganization,
demonstrated
complex
b-dependent
characteristics.
cohesion
rose
with
increasing
b,
whereas
internal
friction
angle
followed
a
non-monotonic
pattern,
decreasing
slightly
as
b
approached
1.
envelope
fell
between
that
predicted
by
Lade-Duncan
extended
von
Mises
criteria.,
which
is
best
generalized
nonlinear
criterion
when
soil
parameter
α
0.533.
findings
reveal
stress-path-dependent
mechanisms
provide
essential
parameters
for
optimizing
design
underground
engineering
projects
this
region.
Язык: Английский
Integrating coastal protection structures into vulnerability assessments: A case study from Kerala, India
Ocean & Coastal Management,
Год журнала:
2025,
Номер
266, С. 107670 - 107670
Опубликована: Апрель 4, 2025
Язык: Английский
Investigating the Element Geochemical Behavior and Provenance of Surface Sediments in the Offshore Area of Sierra Leone, Africa: Insights from Major and Trace Elements
Water,
Год журнала:
2024,
Номер
16(23), С. 3540 - 3540
Опубликована: Дек. 9, 2024
The
element
geochemical
behavior
and
provenance
of
marine
sediments
are
significance
to
understanding
the
oceanic
material
cycle.
Here,
we
tested
grain
size
major
trace
elements
35
surface
in
offshore
area
Sierra
Leone,
analyzed
content
characteristics
controlling
factors
elements,
discussed
source
sediments,
made
a
comparative
study
with
China.
results
show
that
sandy
silt
is
main
sediment
type
research
area,
average
mean
(Mz)
4.15Φ.
Ca
samples
highest
among
(except
Si),
an
5.1%.
Sr
Ti,
P,
Mn),
378.2
μg/g.
correlation
analysis
factor
there
three
sources
namely,
terrigenous
weathering
products,
ilmenite-dominated
ore,
biochemical
substances.
Compared
China
offshore,
more
affected
by
biochemistry
have
special
ore
input
characteristics.
Язык: Английский
Morphological evolution of the Qingshuigou subaqueous delta of the Yellow River before and after the operation of the Xiaolangdi Reservoir (1997-2007)
Frontiers in Marine Science,
Год журнала:
2024,
Номер
11
Опубликована: Дек. 18, 2024
The
Modern
Yellow
River
Delta
has
a
rich
history
of
geomorphological
transformations
shaped
by
frequent
avulsions
and
rapid
progradation.
However,
the
delta
entered
phase
altered
morphodynamics
following
construction
Xiaolangdi
Reservoir,
which
fundamentally
restructured
sediment
transport
regimes
seasonal
hydrological
patterns.
These
changes
have
amplified
challenges
in
predicting
long-term
deltaic
evolution
under
evolving
boundary
conditions.
Qingshuigou
Subaqueous
Delta,
as
major
depositional
zone,
provides
compelling
lens
to
examine
these
morphodynamic
processes.
variations
riverine
sand
fluxes
driven
water-sand
regulation
scheme
that
accompanied
Reservoir
its
impact
on
front
are
particularly
understudied.
This
study
developed
simplified
model
investigate
response
water
discharges
from
1997
2007.
findings
follows:
(1)
morphological
gradually
changed
pattern
“leading
edge
deposition
localized
near-shore
erosion”
before
“enhanced
leading
increased
after
construction.
(2)
weakened
spatial
distribution
erosion
process
certain
extent,
changing
dominated
(63.8%
area)
accretion
(More
than
50%
(3)
temporal
variability
incoming
sediments
leads
significant
coarsening
grain
size
tidal
flats
southern
part
abandoned
delta,
turn
maintains
relatively
steady
state
shoreline
variability.
In
contrast,
spit
experiences
severe
fluctuations
due
intensified
wave
action.
(4)
emphasizes
importance
considering
unsteady
discharge
modeling
delta.
It
new
insights
into
differentiation
geomorphic
equilibrium
contributes
broader
understanding
evolution.
Язык: Английский