A square footing supporting a new building applies a uniform pressure of 200 kPa to the ground surface. The water table is at the ground surface and the site is underlain by a homogeneous sand deposit. Based on the bulbs of pressure developed below the footing depicted in the figure below, which of the following statements are correct (select all that apply)? A.After construction, the vertical total stress (σ) at Points B and C is the same. B.After construction, the increase in vertical total stress (∆σ) at Points B and C is the same. C.After construction, the increase in vertical total stress (∆σ) at Point A is three times lower than ∆σ induced at Point B. D.After construction, the vertical effective stress (σ’) at Point A is by coincidence the same as the vertical effective stress induced at Point B.
A square footing supporting a new building applies a uniform pressure of 200 kPa to the ground surface. The water table is at the ground surface and the site is underlain by a homogeneous sand deposit. Based on the bulbs of pressure developed below the footing depicted in the figure below, which of the following statements are correct (select all that apply)?
A.After construction, the vertical total stress (σ) at Points B and C is the same.
B.After construction, the increase in vertical total stress (∆σ) at Points B and C is the same.
C.After construction, the increase in vertical total stress (∆σ) at Point A is three times lower than ∆σ induced at Point B.
D.After construction, the vertical effective stress (σ’) at Point A is by coincidence the same as the vertical effective stress induced at Point B.
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