A retaining wall 6 m high supports a fully saturated soil with the following properties: specific gravity of soil partic
Posted: Mon May 16, 2022 9:17 am
A retaining wall 6 m high supports a fully saturated soil with the following properties:
specific gravity of soil particles, Gs = 2.67, porosity of soil n = 0.445. The surface of the soil is horizontal
and level with the top of the wall, and it carries a uniform discharge of 21.5 kN/m2. Undrained triaxial
compression tests on samples of the soil provided the following results in Table 3:
Table 3
7.5
15
18.75
Lateral pressure (kN/m2)
Principal stress difference at
failure (kN/m2)
8.25
10.5
10.1
Assuming that the angle of shearing resistance p = 0, estimate the cohesion of the soil and determine the magnitude and position of the resultant active pressure on the vertical back of the wall, allowing for the formation of tension cracks at the soil surface. For your calculations, please neglect the adhesion and friction along the vertical back of the wall.
specific gravity of soil particles, Gs = 2.67, porosity of soil n = 0.445. The surface of the soil is horizontal
and level with the top of the wall, and it carries a uniform discharge of 21.5 kN/m2. Undrained triaxial
compression tests on samples of the soil provided the following results in Table 3:
Table 3
7.5
15
18.75
Lateral pressure (kN/m2)
Principal stress difference at
failure (kN/m2)
8.25
10.5
10.1
Assuming that the angle of shearing resistance p = 0, estimate the cohesion of the soil and determine the magnitude and position of the resultant active pressure on the vertical back of the wall, allowing for the formation of tension cracks at the soil surface. For your calculations, please neglect the adhesion and friction along the vertical back of the wall.