Effect of structural characteristics on the stability of multi-weak rock slopes considering the spatial variability of geotechnical parameters
Abstract
The
slope
of
open-pit
mines
is
typically
characterized
by
an
interaction
structure
involving
multiple
weak
layers,
with
these
structural
characteristics
serving
as
key
factors
in
determining
rock
stability.
Under
the
influence
random
such
engineering
activities
and
geological
structures,
layers
intact
undergo
relative
changes.
This
leads
to
a
more
pronounced
spatial
variability
geotechnical
parameters
that
inherently
exist.
Consequently,
twenty
generalized
models
slope,
each
different
were
established
varying
angle,
layer
dip,
height.
Latin
Hypercube
Sampling
(LHS)
method
was
employed
efficiently
generate
fields.
Utilizing
mathematics
software
FLAC3D,
fields
assigned
numerical
model
via
independent
program.
variations
statistical
both
deformation
safety
factor
obtained
through
strength
reduction
method.
results
indicate
that,
for
bedding
anti-dip
slopes
stochastic
parameters,
increase
angle
decrease
factor,
albeit
degrees.
Additionally
height
slope.
Reducing
effective
than
decreasing
improving
As
increases,
mean
decreases,
while
increases.
stability
significantly
greater
dip
has
effect
on
slope;
failure
mode
shifts
from
slip
along
slip-toppling
failure.
In
contrast,
potential
surface
manifests
arc
shape
intersects
layers.
sensitivity
follows
order
most
least
significant.
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Ноя. 19, 2024
Язык: Английский