Minerals,
Journal Year:
2024,
Volume and Issue:
14(11), P. 1134 - 1134
Published: Nov. 9, 2024
The
granular
soils
of
tailings,
encompassing
clay,
gravel,
sand,
and
silt,
play
a
pivotal
role
in
the
behavior
stability
tailings
dams.
Different
types
significantly
influence
material’s
strength,
compressibility,
permeability.
This
study
highlights
importance
understanding
relationship
between
soil
contaminant
properties
when
analyzing
solute
transport
through
numerical
modeling.
Consequently,
various
were
incorporated
into
initial
dam
model
to
simulate
based
on
analysis.
findings
underscored
essential
dispersion
within
Finer
particles,
such
as
clay
demonstrated
higher
adsorption
capacities,
which
slow
movement.
In
contrast,
coarser
materials,
like
sand
enable
faster
transport,
increasing
potential
for
rapid
dispersion.
Environmental Challenges,
Journal Year:
2024,
Volume and Issue:
15, P. 100889 - 100889
Published: March 7, 2024
Impact
assessments
following
environmental
disasters
must
be
quick
and
in
accessible
language
so
that
decision-makers
affected
populations
are
aware
of
the
main
impacts
can
target
recovery
measures.
After
collapse
Fundão
dam
(Minas
Gerais,
Brazil)
November
2015,
an
extensive
monitoring
program
was
implemented
to
understand
aquatic
situation
associated
biodiversity
status
after
spill
iron
ore
tailings
a
large
highly
populated
watershed,
reached
Atlantic
Ocean
along
southeast
Brazilian
coast.
A
programme
faced
several
challenges,
including
volume
data
analysed,
which
difficult
objective
diagnosis
communication
between
technical
teams
decision
makers.
In
this
context,
impact
matrix
proposed
as
tool
for
assessing
proxy
results
summarizing
obtained.
The
Matrix
is
interaction
adaptation
consists
quantifying
using
pre-defined
criteria
scores.
Expert
panels
assessed
link
measures
objectives
by
scoring
specific
criteria.
As
matrix,
made
up
two
intersecting
axes:
identified
compartments
(whether
abiotic
or
biotic).
final
summing
score
on
each
intersections.
supervised
approach
focused
provide
relatively
simple
apply
and,
when
carried
out
periodically
parallel
with
programme,
it
makes
possible
observe
temporal
trends
evolution
environment
event
causing
impact.
also
serve
feedback
itself,
used
adaptive
management
approach.
Physics of Fluids,
Journal Year:
2025,
Volume and Issue:
37(5)
Published: May 1, 2025
As
a
critical
safety
structure
in
cemented
paste
backfill
(CPB)
systems,
traditional
reinforced-concrete
barricades
exhibit
high
load-bearing
capacity
but
suffer
from
design
limitations
due
to
the
neglect
of
slurry
rheological
properties
and
time-dependent
characteristics,
leading
structural
failures
resource
inefficiency.
This
study
proposes
lateral
pressure
theoretical
model
incorporating
time
dependence,
grounded
yield
stress-resting
evolution
CPB.
Results
demonstrate
that
backfilling
height
predominantly
governs
pressure.
A
mechanical
reinforcement
was
developed
using
plastic
hinge
line
theory
two-way
slabs,
deriving
computational
formulas
for
horizontal
vertical
quantities.
Key
findings
indicate
requirements
are
influenced
by
height,
width-to-height
ratio
(W/H),
rebar
diameter,
strength,
while
horizontal/vertical
solely
depends
on
W/H.
strength
fusion
theory,
integrating
area
ratios
through
limit
state
methodology,
reveals
composite
is
primarily
determined
tensile
concrete
unconfined
compressive
(UCS),
ratio,
with
UCS
being
dominant
factor.
enables
thickness
determination
based
enhancing
scientific
rigor.
The
systematic
framework
sequentially
calculates
pressure,
thickness,
configuration.
Case
validations
confirm
28%–35%
reductions
consumption
1–2
specification
grade
decrease
diameters,
field
applications
stable
barricade
performance
during
operations.
Applied Sciences,
Journal Year:
2025,
Volume and Issue:
15(4), P. 1757 - 1757
Published: Feb. 9, 2025
Adopting
an
appropriate
method
to
analyze
the
spatial
evolution
process
of
tailings
flow
after
dam
failure
can
provide
a
rational
assessment
inundation
range
and
evaluate
subsequent
disaster.
Simultaneously,
it
offer
foundation
for
pond
construction
safety
management.
This
paper,
focusing
on
specific
iron
mine
in
Xiagao,
Guangdong,
establishes
three-dimensional
simulation
based
design
drawings
raised
pond.
Utilizing
depth
integral
as
theoretical
basis,
this
research
references
parameter
values
obtained
through
model
experiments
numerical
simulation.
Through
method,
study
simulates
disaster
range,
flow,
state
break.
The
velocity
affected
areas
are
derived,
demonstrating
disasters
resulting
from
failure.
Moreover,
feasibility
raising
is
evaluated.
extends
damage
risk
critical
downstream
facilities
provides
prevention
control
suggestions
high-risk
situations.
ultimately
offers
technical
support
accidents
advancement
production.
