Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 17, 2025
Caving
mining
in
extra-thick
coal
seams
induces
large-scale
overburden
movement,
leading
to
more
intense
fracture
processes
key
strata,
significant
surface
subsidence,
and
frequent
dynamic
disasters
mines.
This
study,
using
the
N34-2
caving
face
of
17th
seam
at
Junde
Mine
as
a
case
aims
investigate
time-varying
linkage
mechanism
between
microseismic
characteristics,
scales
overburden's
strata
under
such
conditions.
Based
on
Timoshenko's
theory,
bearing
mode
for
is
proposed,
corresponding
criteria
are
established.
The
modes
step
distances
working
were
calculated
theoretically
verified
localization
data,
showing
that
higher
prone
failure,
increase
distances.
Numerical
simulations
monitoring
techniques
employed
comprehensively
analyze
main
controlling
factors
subsidence.
To
further
clarify
high-position
full
cycle
divided
into
four
sub-processes:
short-term
fracture,
rapid
compaction
stability,
energy
accumulation.
relationship
subsidence
responses
analyzed
each
sub-process,
establishing
system.
approach
offers
systematic
accurate
method
predict
assess
movement
processes,
providing
new
insights
prevention
control
rock
burst
seams.
Journal of Safety and Sustainability,
Journal Year:
2023,
Volume and Issue:
1(1), P. 53 - 73
Published: Dec. 19, 2023
The
design
of
underground
hard
rock
pillars
plays
a
crucial
role
in
the
safety
and
stability
mining
operations.
Ensuring
safe
efficient
resource
extraction
while
safeguarding
well-being
miners
is
paramount
importance.
This
paper
provides
an
overview
background
significance
pillar
design,
presenting
comprehensive
exploration
various
technologies
employed
assessing
designing
stable
pillars.
These
methodologies
include
empirical
formulas,
numerical
simulations,
statistical
analyses,
artificial
intelligence
(AI)
techniques,
each
contributing
to
enhancing
efficiency
Furthermore,
this
conducts
systematically
analysis
global
trends
from
year
2000
onwards,
utilizing
CiteSpace
VOSviewer
software
tools.
analytical
approach
aims
provide
quantitative
assessment
domain
design.
Notably,
future
poised
for
transformative
shift,
as
it
involves
integration
data-driven
theory-driven
approaches.
By
combining
AI
with
finite
element
discrete
industry
anticipates
achieving
more
accurate,
adaptable,
dynamic
designs.
expected
not
only
improve
environmental
sustainability
but
also
yield
significant
economic
benefits.
In
conclusion,
merging
represents
promising
avenue
advancing
field,
ensuring
safer,
sustainable,
economically
viable
practices.
Water,
Journal Year:
2024,
Volume and Issue:
16(4), P. 516 - 516
Published: Feb. 6, 2024
Rock
burst,
an
important
kind
of
geological
disaster,
often
occurs
in
underground
construction.
burst
risk
assessment,
as
part
engineering
cannot
be
ignored.
Liquid
nitrogen
fracturing
is
a
new
technology
used
the
geological,
oil,
and
gas
industries
to
enhance
productivity.
It
involves
injecting
liquid
into
reservoir
rocks
induce
fractures
increase
permeability,
effectively
reducing
rock
occurrences
facilitating
flow
oil
or
toward
wellbore.
The
research
on
assessment
basis
disasters,
which
has
theoretical
practical
significance.
This
article
examines
temperature
treatment
two
types
at
25
°C,
100
200
300
400
followed
by
immersion
tank.
difference
between
may
trigger
bursting.
focused
analyzing
various
characteristics
samples
when
exposed
nitrogen.
included
studying
stress–strain
curve,
elastic
modulus,
strength,
cross-section
analysis,
wave
velocity,
other
relevant
aspects.
Under
influence
high
jet,
velocity
changes.
structural
possible
hidden
dangers
can
understood
more
comprehensively
through
section
scanning
analysis.
curve
describes
deformation
failure
behavior
under
different
stress
levels,
help
evaluate
their
stability
performance.
investigation
specifically
subjected
temperatures
By
curves,
researchers
were
able
identify
precursors
processes
that
occur
before
significant
failure.
These
findings
have
implications
for
mechanical
properties
rocks.
Geomechanics and Geophysics for Geo-Energy and Geo-Resources,
Journal Year:
2024,
Volume and Issue:
10(1)
Published: May 29, 2024
Abstract
Rockburst,
coal
bump,
and
mine
earthquake
are
the
most
important
dynamic
disaster
phenomena
in
deep
mining.
This
paper
summarizes
differences
connections
between
rockburst,
bumps
earthquakes
terms
of
definition,
mechanism,
phenomenon,
evaluation
index,
etc.
The
definition
evolution
progress
three
categories
summarized,
as
well
monitoring,
early
warning,
prevention
measures
also
presented.
Firstly,
by
combining
theoretical
research
with
specific
technologies
engineering
field
cases,
main
failure
mechanisms
introduced.
Then,
indexes
bump
a
new
index
rockburst
is
given.
Finally,
characteristics
warning
methods
bumps,
discussed
technology
application.
At
last,
future
directions
put
forward.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: March 20, 2025
With
the
increasing
number
of
deep-buried
tunnel
constructions
in
China,
possibility
rockburst
hazard
during
construction
high-stress,
hard
rock
environments
also
rises.
The
stress
inversion
method
is
initially
employed
to
determine
characteristics
along
axis
provide
basis
for
predicting
hazards.
Then,
utilizing
widely
recognized
criteria
and
newly
proposed
energy
criteria,
risk
predicted
from
macroscopic
microscopic
perspectives.
results
indicated
that:
(1)
discrepancy
between
borehole
measurement
data
generally
within
13%,
confirming
feasibility
obtaining
in-situ
distribution
site
through
inversion.
(2)
From
macro
perspective,
predictive
accuracies
left
right
tubes
assessing
level
Ping'an
Tunnel
are
70.6%
68.7%,
respectively.
accuracy
prediction
presented
this
study
approximately
70%,
achieving
a
high
reliability
level.
(3)
based
on
criterion
evolution
surrounding
process
Tunnel,
specific
locations
where
can
occur
face
analyzed.
This
provides
vital
reference
prevention
control
hazard.
