Environmental Engineering Reference
In-Depth Information
L
i
i
ith subset of sample space of x
k
m
Highest Subset Simulation level
m
φ
Mean effective friction angle of soil
MCMC
Markov chain Monte Carlo
MCS
Monte Carlo Simulation
MRFD
Multiple resistance factor design
n
Ω
i
Number of failure samples in Ω
i
Number of failure samples in Ω
i
with a combination of
B
and
D
n
iBD
Ω ,
n
B
,
n
D
Number of possible discrete values for
B
and
D
n
f
Number of failure samples in the simulation
n
i
Number of failure samples at the simulation level '
i
'
n
j
Number of simulation samples where failure occurs and the
x
k
value falls into bin
j
n
ji
Number of failure samples at the simulation level '
i
' with the
x
k
value falling into bin
j
n
min
Minimum MCS sample number
n
t
Total number of samples in the MCS
N
Number of samples per Subset Simulation level
N
γ
,
N
q
Bearing capacity factors
N
B
, N
D
Number of possible values for B and D
p
()
Probability density function
p
(|)
Conditional probability density function
p
0
Conditional probability adopted in Subset Simulation
p
f
ULS
,
p
f
SLS
Failure probability for ULS and SLS
p
T
Target failure probability
P
()
Probability
P
(|)
Conditional probability
PDF
Probability density function
Q
side
,
Q
tip
Side resistance and tip resistance
Q
uls
, Q
sls
ULS and SLS capacity
RBD
Reliability-based design
SLS
Serviceability limit state
SORM
Second-order reliability method
S
uM
,
S
uL
Undrained shear strength of the marine clay and the lacustrine clay
T
cr
,
T
L
Thickness of the clay crust and the lacustrine clay
ULS
Ultimate limit state
UPSS
Uncertainty propagation using Subset Simulation
V
Variable needed to be recorded during Subset Simulation
VBA
Visual Basic for Applications
w
Standard Gaussian variable
W
Effective shaft weight
x
A
, y
A
x and y coordinates of point A
x
k
Value of random variable
X
k
X
Uncertain parameter vector
X
k
Random variable
Y
Driving variable
y
Value of the driving variable
y
m
m
th intermediate threshold value during Subset Simulation
y
a
Allowable displacement
Z
H
Hypothesis testing statistic
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