A 4-m square footing is shown in figure B which supports a load Q = 5000 kN. In this problem H1 = 8 m and H2 = 12 m. Calculate:a. The pressure at the base of the footingb. The pressure at the mid height of the clay layer assuming that the stress beneath the footing is spread at a slope of 1H to 2Vc. The pressure at the mid height of the clay layer [below the center of the footing using Bousinessq equation assuming point load Figure BH1H2Clayt Table 01: Terzaghi's Bearing Capacity Factors(General shear failure)NaNNe(deg)(deg)NeNaN015.701.000.002627.0914.219.846.001.100.012729.2415.9011.606.301.220.042831.6117.8113.7036.621.350.062934.2419.9816.184.6.971.490.103037.1622.4619.137.341.640.143140.4125.2822.656.7.731.810.203244.0428.5226.878.152.000.273348.0932.2331.948.8.602.210.353452.6436.5038.049.9.092.440.443557.7541.4445.41109.612.690.563663.5347.1654.361110.162.980.693770.0153.8065.271210.763.290.853877.5061.5578.611311.413.631.043985.9770.6195.031412.114.021.264095.6681.27115.301512.864.451.5241106.8093.85140.501613.684.921.8242119.70108.80172.001714.605.452.1843134.60126.50211.601815.126.042.5944151.95147.70261.601916.566.703.0745172.30173.30325.302017.697.443.6446196.20204.20407.102118.928.264.3147224.60241.80512.802220.279.195.0948258.30287.90650.702321.7510.236.0049298.70344.60831.992423.3611.407.0850347.50415.101072.802525.1312.728.34

Answered: A 4-m square footing is shown in figure…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A 4-m square footing is shown in figure B which supports a load Q = 5000 kN. In this problem H1 = 8 m and H2 = 12 m. Calculate: a. The pressure at the base of the footing b. The pressure at the mid height of the clay layer assuming that the stress beneath the footing is spread at a slope of 1H to 2V c. The pressure at the mid height of the clay layer [below the center of the footing using Bousinessq equation assuming point load

Table 01: Terzaghi's Bearing Capacity Factors
(General shear failure)
Na
N
Ne
(deg)
(deg)
Ne
Na
N
01
5.70
1.00
0.00
26
27.09
14.21
9.84
6.00
1.10
0.01
27
29.24
15.90
11.60
6.30
1.22
0.04
28
31.61
17.81
13.70
3
6.62
1.35
0.06
29
34.24
19.98
16.18
4.
6.97
1.49
0.10
30
37.16
22.46
19.13
7.34
1.64
0.14
31
40.41
25.28
22.65
6.
7.73
1.81
0.20
32
44.04
28.52
26.87
8.15
2.00
0.27
33
48.09
32.23
31.94
8.
8.60
2.21
0.35
34
52.64
36.50
38.04
9.
9.09
2.44
0.44
35
57.75
41.44
45.41
10
9.61
2.69
0.56
36
63.53
47.16
54.36
11
10.16
2.98
0.69
37
70.01
53.80
65.27
12
10.76
3.29
0.85
38
77.50
61.55
78.61
13
11.41
3.63
1.04
39
85.97
70.61
95.03
14
12.11
4.02
1.26
40
95.66
81.27
115.30
15
12.86
4.45
1.52
41
106.80
93.85
140.50
16
13.68
4.92
1.82
42
119.70
108.80
172.00
17
14.60
5.45
2.18
43
134.60
126.50
211.60
18
15.12
6.04
2.59
44
151.95
147.70
261.60
19
16.56
6.70
3.07
45
172.30
173.30
325.30
20
17.69
7.44
3.64
46
196.20
204.20
407.10
21
18.92
8.26
4.31
47
224.60
241.80
512.80
22
20.27
9.19
5.09
48
258.30
287.90
650.70
23
21.75
10.23
6.00
49
298.70
344.60
831.99
24
23.36
11.40
7.08
50
347.50
415.10
1072.80
25
25.13
12.72
8.34

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