400
423
158
若安全係數FS=3.0,決定基礎寬度B 為多少?
。
參考公式
u
all
q
q
q
q
FS
Shape factors
Depth factors
Inclination factors
1
q
cs
c
N
B
F
L
N
1
tan
'
qs
B
F
L
1
0.4
s
B
F
L
1
0.4
f
cd
D
F
B
2'
1
2tan
'(1 sin
)
f
qd
D
F
B
1
d
F
2
(1
)
90
ci
qi
F
F
2
(1
)
i
F
ϕ(度)
NC
Nq
N ɣ
ϕ(度)
NC
Nq
N ɣ
23
18.05
8.66
8.20
37
55.63
42.92
66.19
24
19.32
9.60
9.44
38
61.35
48.93
78.03
25
20.72
10.66
10.88
39
67.87
55.96
92.25
26
22.25
11.85
12.54
40
75.31
64.20
109.41
27
23.94
13.20
14.47
41
83.86
73.90
130.22
28
25.80
14.72
16.72
42
93.71
85.38
155.55
29
27.86
16.44
19.34
43
105.11
99.02
186.54
30
30.14
18.40
22.40
44
118.37
115.31
224.64
31
32.67
20.63
25.99
45
133.88
134.88
271.76
32
35.49
23.18
30.22
46
152.10
158.51
330.35
33
38.64
26.09
35.19
47
173.64
187.21
403.67
34
42.16
29.44
41.06
48
199.26
222.31
496.01
35
46.12
33.30
48.03
49
229.93
265.51
613.16
36
50.59
37.75
56.31
50
266.89
319.07
762.89