Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science,
Journal Year:
2023,
Volume and Issue:
238(11), P. 5258 - 5270
Published: Dec. 29, 2023
As
the
total
mileage
of
pipeline
and
years
operation
are
increasing,
threat
landslide
corrosion
defects
to
safety
is
also
increasing.
In
this
paper,
based
on
nonlinear
elastoplastic
theory,
a
pipe-soil
coupling
model
established
determine
maximum
stress
location
containing
under
action
landslide,
basis
location,
internal
pressure
factors
such
as
width
displacement
analyzed.
Through
multivariate
linear
regression,
equation
with
change
fitted.
The
results
show
that
in
area,
operating
has
less
influence
existence
will
lead
sudden
changes
here,
which
perforation
pipeline;
increase
displacement,
plastic
deformation
area
appear
middle
pipeline,
means
prone
bending,
rupture
flattening
other
failures,
greater
risk.
non-slippery
pressure,
width,
displacement.
multiple
correlation
coefficients
fitting
expressions
0.959
0.996
respectively
prove
reliability
formula.
International Journal of Hydrogen Energy,
Journal Year:
2024,
Volume and Issue:
71, P. 916 - 929
Published: May 24, 2024
A
safe
and
sustainable
transition
to
hydrogen
requires
that
the
risks
associated
with
systems
be
rigorously
investigated
quantified.
Quantitative
risk
assessment
(QRA)
is
a
rigorous
process
achieve
this
purpose.
This
paper
reviews
existing
studies
on
safety
aspects
of
pipelines
analyzes
applicability
methods
models
for
QRA
transmission
pipelines.
work
identifies
research
gaps
outlines
initial
approaches
address
them.
According
our
analysis,
consequence
modeling
has
received
considerable
attention,
while
limited
been
conducted
quantitatively
analyze
failure
causes
Most
in
general
cannot
directly
applied
pipelines,
yet
they
might
serve
as
basis
future
pipeline
models.
The
results
provide
insights
into
most
critical
needed
enable
Clean Technologies,
Journal Year:
2025,
Volume and Issue:
7(1), P. 8 - 8
Published: Jan. 13, 2025
Pore-scale
remediation
investigation
of
oil-contaminated
soil
is
important
in
several
environmental
and
industrial
applications,
such
as
quick
responses
to
sudden
accidents.
This
work
aims
investigate
the
oil
pollutant
removal
process
optimize
performance
at
pore
scale
find
underlying
mechanisms
for
from
soil.
The
conservative
forms
phase-field
model
non-Newtonian
power-law
fluid
are
employed
track
moving
interface
between
two
immiscible
phases,
flushing
pores
investigated.
effects
viscosity,
interfacial
tension,
wettability,
velocity
on
pore-scale
regularity
explored.
Then,
agents
(surfactant
system
surfactant–polymer
system)
compared
using
an
content
prediction
curve
based
UV-Visible
transmittance.
results
show
that
optimal
efficiency
obtained
a
weak
water-wetting
with
contact
angle
60°
due
stronger
two-phase
interaction,
deeper
penetration,
more
effective
entrainment
flow.
On
basis
dimensionless
analysis,
relatively
larger
velocity,
resulting
higher
capillary
number
(Ca)
certain
range,
can
achieve
rapid
efficient
removal.
In
addition,
appropriately
low
rather
than
ultra-low
intension,
contributes
strengthening
behavior.
A
reasonably
high
viscosity
ratio
(M)
state
plays
synergetic
roles
contaminated
agent
combined
surfactant
polymer
remarkably
enhance
sole
use
surfactant,
achieving
2.5-fold
increase
efficiency.
provides
new
insights
into
often-overlooked
dynamics
behind
via
injection,
which
fundamental
importance
development
response
strategies
contamination.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(12), P. 5115 - 5115
Published: June 16, 2024
Urban
underground
pipelines
(UUPs)
are
critical
infrastructure,
and
their
safe
operation
has
become
a
key
concern
in
Chinese
society.
Currently,
the
tripartite
social
roles
of
local
people’s
government,
pipeline
management
departments,
public
crucial
informatization
urban
pipelines.
In
this
study,
survey
was
conducted
among
126
professionals
technical
personnel
involved
across
eight
cities
different
regions
China.
A
quantitative
weighted
evaluation
model
established
using
Project
Quantitative
Index
(PQI)
principal
component
analysis
(PCA)
to
investigate
value
aforementioned
groups
UUP
informatization.
The
results
indicate:
(1)
There
is
significant
positive
correlation
between
promotion
Moreover,
indicators
with
highest
PQI
“Establishment
departments”
“Support
work
industry
association”
under
role
government.
(2)
affected
differently
by
roles.
This
suggests
that
government
professional
departments
can
proactively
leverage
unique
advantages
based
on
specific
circumstances.
(3)
PCA
showed
related
carried
weight,
indicating
also
played
an
important
degree
studied
ranked
as
follows:
Guangzhou
>
Beijing
Qingdao
Kunming
Shanghai
Chengdu
Wuhan
Sian.
paper
further
discusses
contributions
informatization,
aiming
provide
decision
support
for
future
construction,
management,
maintenance
International Journal of Quality & Reliability Management,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 26, 2024
Purpose
The
aim
of
this
study
is
to
employ
the
failure
mode
and
effect
analysis
(FMEA)
for
risk
management
in
cross-country
pipelines,
coupled
with
utilization
Geographic
Information
System
(GIS).
objective
enhance
significance
project,
considering
potential
severe
consequences
pipeline
failures.
These
encompass
environmental
damages,
loss
life
disruptions
critical
services
like
energy
water
supply.
By
identifying
most
frequent
causes
failures
developing
a
predictive
model,
intention
contribute
toward
prevention
such
incidents
minimize
their
impact.
Design/methodology/approach
A
total
quality
(TQM)
technique
management;
FMEA,
was
employed
integrated
GIS.
Eight
specific
were
identified
analyzed,
exploring
effects
severity,
likelihood
occurrence
as
well
control
detection
value.
To
find
along
pipeline,
GIS
utilized
survey
10
km
wide
area
180
long.
Occurrence
spatial
mapping
each
individual
generated.
Subsequently,
priority
number
(RPN)
calculated
failure,
presenting
values
separate
maps.
overlaying
RPN
maps,
final
map
generated,
illustrating
areas
highest
pipeline.
Findings
modified
model
has
been
developed
detect
before
they
escalate
into
catastrophic
events.
results
provide
visual
representation
average
modes
clearly
highlighting
regions
varying
probabilities
based
on
values.
meticulously
across
entire
presented
through
both
2D
comprehensive
line
graph.
This
approach
sets
our
apart
from
others
field.
Our
emphasis
thorough
inclusive
assessment
methodology
represents
key
novelty
research.
findings
underscore
paramount
importance
proactive
maintenance
regular
inspection
practices,
these
measures
emerging
strategies
enhancing
reliability
safety
infrastructure.
Research
limitations/implications
research
aims
pipelines.
main
limitations
include
inability
consider
risks
associated
flow
characteristics
inside
exclusion
future
master
plan
analysis.
Practical
implications
current
significant
operative
companies
oil
gas
industries.
pipelines
are
susceptible
that
can
have
alarming
negative
impacts
environment,
human
public
health.
It
improve
elevate
integrity
level
Focusing
high-risk
areas,
taking
action
implementing
reduce
system.
utilizes
GIS-detailed
surveying
without
necessity
making
on-site
visits.
Originality/value
introduces
novel
framework
incorporating
FMEA
advanced
software.
stands
out
unique
contribution
field,
prior
studies
not
undertaken
task
using
sophisticated
methodology.
makes
field
crude
transportation
ultimately
mitigating
undesirable
Materials,
Journal Year:
2024,
Volume and Issue:
17(17), P. 4406 - 4406
Published: Sept. 6, 2024
This
study
employs
a
hybrid
numerical-experimental
calibration
method
based
on
phenomena
to
determine
the
fracture
parameters
of
Modified
Mohr–Coulomb
(MMC)
model.
Using
self-developed
VUMAT
subroutine
and
element
deletion
technique,
process
wide
plate
pipeline
is
thoroughly
analyzed.
investigates
impact
various
crack
shapes
response
under
tensile
loading
influence
surface
size
initiation
location
plate.
These
results
demonstrate
calibrated
MMC
model’s
accurate
prediction
toughness
behavior
X80
steel.
Under
equal
area
conditions
dangerous
section,
circular
cracks
exhibit
lower
bearing
capacity
compared
elliptical
cracks.
Elliptical
predominantly
propagate
in
thickness
direction,
whereas
show
nearly
uniform
growth
all
directions.
Furthermore,
when
depth
less
than
half
wall
thickness,
damage
accumulation
value
at
midpoint
front
maximized;
conversely,
closer
internal
measurement
point
plate,
maximized.
