I
nte
rna
t
io
na
l J
o
urna
l o
f
Adv
a
nces in Applie
d Science
s
(
I
J
AAS)
Vo
l.
5
,
No
.
2
,
J
u
n
e
201
6
,
p
p
.
65
~
71
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SS
N:
2252
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65
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all
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s
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uth
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r
:
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State
Ke
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lab
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cn
1.
I
NT
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h
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co
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an
d
h
a
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g
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t
p
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t.
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w
e
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,
t
h
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tio
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f
s
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ac
e
m
i
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in
g
p
r
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w
as
s
m
alle
r
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ast.
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w
w
it
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t
h
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co
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g
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v
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d
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h
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ad
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f
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m
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t
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ac
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m
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,
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h
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m
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er
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d
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f
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s
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t
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ap
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to
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p
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it
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al
b
elo
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th
e
e
n
d
-
w
a
ll.
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w
e
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er
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f
u
n
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er
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r
o
u
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d
m
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p
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en
d
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w
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ll
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an
d
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er
g
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o
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n
d
m
in
in
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,
w
h
ich
will
in
f
l
u
en
ce
th
e
s
lo
p
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s
tab
ilit
y
g
r
ea
tl
y
.
I
n
v
ie
w
o
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t
h
is
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e
n
d
-
w
all
s
lo
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s
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er
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m
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s
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e
w
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ch
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On
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a
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l
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n
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ield
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at
te
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p
t to
s
t
u
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it p
r
eli
m
in
ar
il
y
.
2.
M
O
DE
L
I
N
G
AN
AL
Y
S
I
S O
F
UNDER
G
RO
UND
M
I
NIN
G
B
E
L
O
W
E
ND
-
W
AL
L
S
L
O
P
E
[2]
No
r
m
a
ll
y
,
t
h
e
d
ip
o
f
s
tr
ata
i
n
s
u
r
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ac
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m
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is
s
m
a
ll.
T
o
h
ig
h
li
g
h
t t
h
e
p
r
o
b
lem
o
f
s
lo
p
e
s
tab
ilit
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,
th
e
g
eo
lo
g
ical
co
n
d
itio
n
s
ar
e
s
i
m
p
li
f
ied
.
I
t
is
a
s
s
u
m
ed
th
a
t
t
h
e
s
tr
ata
ar
e
b
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o
r
izo
n
tal
l
y
,
a
n
d
th
e
n
t
h
e
d
ip
is
0
o
.
T
h
e
s
lo
p
e
an
g
le
o
f
s
u
r
f
ac
e
m
in
e
is
,
th
e
th
ick
n
es
s
o
f
co
al
s
ea
m
is
h
,
an
d
th
e
h
eig
h
t
o
f
o
v
er
b
u
r
d
en
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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2
2
5
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8814
IJ
AA
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Fig
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3
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Evaluation Warning : The document was created with Spire.PDF for Python.
IJ
AA
S
I
SS
N:
2252
-
8814
S
tu
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Fig
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3
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R
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as:
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s
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w
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if
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e
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s
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co
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g
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s
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li
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ld
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1
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n
d
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d
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cc
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is
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n
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ac
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e
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.
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m
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b
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w
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e
[
2]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
2
5
2
-
8814
IJ
AA
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Vo
l.
5
,
No
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2
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ir
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o
al
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illar
Evaluation Warning : The document was created with Spire.PDF for Python.
IJ
AA
S
I
SS
N:
2252
-
8814
S
tu
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d
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.
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s
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s
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ce
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s
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B
ec
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o
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d
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h
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e
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a
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lear
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f
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w
h
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lates to
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3.
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s
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d
ir
ec
tio
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to
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s
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s
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g
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es
in
f
o
r
w
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r
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.
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e
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et
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d
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is
also
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lled
w
id
th
o
f
p
r
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tectin
g
c
o
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illar
.
Fro
m
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is
r
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lt
s
,
w
e
also
k
n
o
w
t
h
at
t
h
e
co
llap
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e
o
r
s
u
b
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l
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ata
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s
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s
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d
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tiv
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h
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m
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n
ed
-
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s
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ld
b
e
b
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illed
p
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ly
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ter
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to
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ce
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in
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ACK
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)
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ch
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u
n
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h
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State
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y
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f
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ce
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an
d
Min
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s
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f
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th
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Sp
ec
ial
Fu
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d
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o
r
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asic
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e
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es (
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0
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0
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3
3
,
2
0
1
0
Z
DP
0
1
A
0
2
)
.
REFEREN
CES
[1
]
T
a
n
g
X
L
,
Ye
M
L
.
T
h
e
th
in
p
l
a
te
th
e
o
ry
a
n
a
l
y
sis
o
f
h
a
rd
ro
o
f
a
n
d
p
re
ss
u
re
f
o
re
c
a
st
[
J]
.
G
ro
u
n
d
P
re
ss
u
re
a
n
d
S
trata
Co
n
tr
o
l.
2
0
0
3
:
2
:
89
-
9
2
.
(I
n
Ch
i
n
e
se
)
[2
]
P
e
n
g
H
G
.
In
f
lu
e
n
c
e
M
e
c
h
a
n
is
m
o
f
m
in
in
g
d
istu
rb
a
n
c
e
o
n
slo
p
e
sta
b
il
it
y
in
su
rf
a
c
e
c
o
a
l
m
in
e
[
D]
.
X
u
z
h
o
u
:
Ch
i
n
a
Un
i
v
e
rsit
y
O
f
M
in
in
g
A
n
d
T
e
c
h
n
o
lo
g
y
li
b
ra
r
y
.
2
0
1
0
.
(I
n
C
h
in
e
se
)
[3
]
P
e
n
g
H
G
,
Ca
i
Q
X
,
Zh
o
u
W
,
S
h
u
J
S
,
Ch
e
n
Y
L
.
S
tu
d
y
o
n
d
ist
o
rt
io
n
m
e
c
h
a
n
ism
o
f
m
in
e
d
slo
p
e
a
ff
e
c
ted
b
y
o
p
e
n
-
p
it
a
n
d
u
n
d
e
rg
ro
u
n
d
m
in
in
g
[
J
].
M
e
tal
M
in
e
.
2
0
0
9
:
1
1
:
1
2
9
-
1
3
1
.
(
In
Ch
in
e
se
)
[4
]
Pe
n
g
H
G
,
Ca
i
Q
X
,
Zh
o
u
W
,
S
h
u
J
S
.
Re
se
a
rc
h
o
n
k
e
y
in
f
lu
e
n
c
e
f
a
c
to
rs
o
f
e
n
d
-
slo
p
e
sta
b
il
i
ty
f
o
r
s
tee
p
e
n
d
-
slo
p
e
m
in
in
g
in
su
rf
a
c
e
c
o
a
l
m
in
e
[
J
]
.
C
h
in
a
M
in
i
n
g
M
a
g
a
z
in
e
.
2
0
0
8
:
1
7
(
5
)
:
71
-
7
4
.
(I
n
C
h
in
e
se
)
[5
]
W
a
n
g
Z
W
,
W
a
n
g
L
G
,
W
a
n
g
J
G
.
S
tu
d
y
o
n
F
a
il
u
re
R
u
le
o
f
Ro
c
k
S
lo
p
e
A
ffe
c
ted
b
y
Un
d
e
rg
ro
u
n
d
M
in
i
n
g
[
J
]
.
M
in
i
n
g
Re
se
a
rc
h
a
n
d
De
v
e
lo
p
m
e
n
t.
2
0
0
9
:
2
9
(
2
)
:
13
-
1
5
.
(I
n
Ch
i
n
e
se
)
[6
]
P
e
n
g
H
G
,
Ca
i
Q
X
,
S
h
u
J
S
,
Z
h
a
n
g
L
.
A
p
p
li
c
a
ti
o
n
re
se
a
rc
h
o
f
n
u
m
e
ric
a
l
sim
u
latio
n
in
th
e
sl
o
p
e
sta
b
il
it
y
o
f
b
u
-
z
h
a
o
-
b
a
o
p
e
n
p
it
[
J
].
Ch
i
n
a
M
i
n
in
g
M
a
g
a
z
in
e
,
2
0
0
7
,
1
6
(
6
):6
0
-
6
2
.
(
In
Ch
i
n
e
se
)
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