qd=2kN/m² Yi (14,0+4.0,Y) kN/m³ h1=2,0m 41=20° C=0kPa Y2=(18,0+3.0,X) kN/m³ 42=40° C=0kPa h2=3,Zm
A foundation and earth works design office hired you to calculate the buoyancy force generated by the soil profile, indicated as shown in the figure below, in a retaining wall.
qd2kN/m²
Soft sand
Y1=(14.0+4.0.Y) kN/m³
φ1=20º
C=0kPa
Compact sand
Y2=(18.0+3.0.X) kN/m³
φ2=40°
C=0kPa
h1=2.0m
h2=3,Zm
Given the information above, draw up the active buoyancy diagram (horizontal stresses) and calculate the value of the resulting buoyancy generated by the imposed vertical stresses and the point of application of their resultant.
Considerations:
- The efforts of the soil on the wall are of an active nature;
⁃ The
⁃ X, Y and Z correspond to the third-to-last, penultimate and last digits of the student's RA, respectively. In this case, X=6 Y=1 Z=0.
Where, h2=
3.0 m; Y1- (14.0+4+0.1)= 14.4 kN/m³ and Y2=(18.0+3*0.6)= 19.8 kN/m³;
- Neglect vertical friction between the wall and the ground.
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