Civil Engineering Reference
In-Depth Information
Total Sliding force E
,
=
66 5 19 6
.
+
.
=
86 1
.
kN/m
d
R
=
c
× =
B
53 6 2
.
× =
107 2
.
kN/m again
(
γ
=
1 0
.
)
d
u d
;
Rh
107 2
86 1
.
.
Γ =
=
1 25
.
1
1 25
∆=
=
80
%
.
In conclusion, the GEO limit state requirement is satisfied since R
d
≥
E
d
in both
combinations. Combination 2 is more critical and thus 'governs' the design.
(b) Design Approach 2 (A1
+
M1
+
R2)
75
75
1
c
;
=
=
=
75
kPa
u d
γ
cu
P
=
66 5
.
× =
γ
66 5 1 35
.
×
.
=
89 8
.
kN/m
a d
;
G
P
=
15 1
.
× =
γ
15 1 1 5
.
×
.
=
22 7
.
kN/m
q d
:
Q
E
d
=
89 8
.
+
22 7
.
=
112 5
.
kN/m
c
×
B
75 2
1 1
×
u d
;
R
=
=
=
136 4
.
kN/m
d
γ
.
Rh
136 4
112 5
.
.
Γ =
=
1 21
.
1
1 21
∆=
=
83
%
.
i.e. limit state requirement ok
(c) Design Approach 3 (A*
+
M2
+
R3)
*use A1 on structural actions, A2 on geotechnical actions
75
75
1 4
c
=
=
=
53 6
.
kPa
u d
;
γ
.
cu
P
=
66 5
.
× =
γ
66 5 1 0
.
×
.
=
66 5
.
kN/m
a d
;
G
P
=
15 1
.
× =
γ
15 1 1 3
.
×
.
=
19 6
.
kN/m
q d
:
Q
Total Sliding force E
,
=
66 5 19 6
.
+
.
=
86 1
.
kN/m
d
R
=
c
× =
B
53 6 2
.
× =
107 2
.
kN/m since
(
γ
=
1 0
.
)
d
u d
;
Rh
107 2
86 1
.
.
Γ =
=
1 25
.
1
1 25
∆=
=
80
%
.
i.e. limit state requirement ok
