The following picture depicts a soil profile that has two sources of above-ground loading: (1) a point load of 650 kN and (2) a rectangular footing that support a loading of 900 kN. Calculate the following: Vertical effective stress (σ’v ) at point A. Assume free field condition (i.e., no effect from the above-ground point load and rectangular footing). Horizontal total stress (σh ) at point A. Assume free field condition. Vertical effective stress (σ’v ) at point B. Assume free field condition.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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The following picture depicts a soil profile that has two sources of above-ground loading: (1) a point load of 650 kN and (2) a rectangular footing that support a loading of 900 kN. Calculate the following:

  1. Vertical effective stress (σ’v ) at point A. Assume free field condition (i.e., no effect from the above-ground point load and rectangular footing).

  2. Horizontal total stress (σh ) at point A. Assume free field condition.

  3. Vertical effective stress (σ’v ) at point B. Assume free field condition.

  4. Vertical effective stress (σ’v ) at point C. Consider the effect from the point load only.

  5. Vertical effective stress (σ’v ) at point D. Consider the effect from the rectangular footing only. Use the DM 7.01 method. Approximate method is not allowed.

  6. Vertical effective stress (σ’v ) at point E. Consider the effect from the rectangular footing only. Use the DM 7.01 method. Approximate method is not allowed.

  7. Vertical effective stress (σ’v ) at point E. Consider the effects from the rectangular footing AND point load

  8. Settlement on the Lean clay layer resulted from the rectangular footing AND point load. State all assumptions you have made. Express your answer in cm.

1.0 m, 1.5 m
2.0 m
3 m
650 kN
900 kN
1 m
Fine silty sand
Y + 17 kN/m3
k= 0.52
SM
1.7 m
"B
D
y = 19 kN/m³
k. = 0.74
o', = 50 kPa; e, = 1
С 3D 0.1; С, 3 0.01
2.8 m
Clayey sand
SC
A
Y+ 20 kN/m³
k= 0.74
2.1 m
Fat clay
CH
Transcribed Image Text:1.0 m, 1.5 m 2.0 m 3 m 650 kN 900 kN 1 m Fine silty sand Y + 17 kN/m3 k= 0.52 SM 1.7 m "B D y = 19 kN/m³ k. = 0.74 o', = 50 kPa; e, = 1 С 3D 0.1; С, 3 0.01 2.8 m Clayey sand SC A Y+ 20 kN/m³ k= 0.74 2.1 m Fat clay CH
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