A 1.8 m square, 2 m deep and 1 m high footing supports a column load of 570 kN. It is supported on a clayey sand. There is no water present at the site. Use unit weight for the concrete 24 kN/m³. A dilatometer test run at the site has returned the following constrained modulus profile: Depth (m) M (MPa) 2 7.7 3 8.8 4 5 10.2 14.8 6 15.4 Plot the modulus distribution with depth considering both the strain distribution with depth and the soil moduli, and divide soil into 5 layers, then determine the average modulus for each soil layer.
A 1.8 m square, 2 m deep and 1 m high footing supports a column load of 570 kN. It is supported on a clayey sand. There is no water present at the site. Use unit weight for the concrete 24 kN/m³. A dilatometer test run at the site has returned the following constrained modulus profile: Depth (m) M (MPa) 2 7.7 3 8.8 4 5 10.2 14.8 6 15.4 Plot the modulus distribution with depth considering both the strain distribution with depth and the soil moduli, and divide soil into 5 layers, then determine the average modulus for each soil layer.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A 1.8 m square, 2 m deep and 1 m high footing supports a column load of 570 kN. It is supported
on a clayey sand. There is no water present at the site. Use unit weight for the concrete 24 kN/m³.
A dilatometer test run at the site has returned the following constrained modulus profile:
Depth (m)
M (MPa)
2
7.7
3
8.8
4
5
10.2 14.8
6
15.4
Plot the modulus distribution with depth considering both the strain distribution with depth
and the soil moduli, and divide soil into 5 layers, then determine the average modulus for
each soil layer.
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