A retaining wall is 8 m high and having a vertical back. The soil behind the wall is having an angle of internal friction of 20°, cohesion of 12 kN/m² and unit weight of soil is 18 kN/m³. The resultant active thrust on the wall after the development of tension cracks is __________ kN/m. (Round off to two decimal places).

FDE 002: A retaining wall 7m high supports a cohesionless soil having a dry density of 1620 kg/m³, angle of shearing resistance is 33 degrees and void ratio of 0.68. The surface of soil is horizontal and level with the top of the wall. Neglect wall friction and use Rankine's formula for active pressure of a cohesionless soil. Determine the height above the base of the wall where the thrust acts during the waterlogged condition. Select the correct response: 1.53 m 1.97 m 2.03 m 3.67 m

Given: → 4.5-m high retaining wall . Retaining homogeneous satorated soft clay. O'sat= 19.6 kNĪm³ Cu = 19.3 kN/m² ( undrained shear strergth) -> Diagram: Sopt Clay sat - 19.6 kN/m? Cu- 19.3 kN/m³ 4.5-m Make the necessary calu lation and draw the varialion of Rankine's active pressure on the wall with depth. nclude #te pressure from a waker-filled crack in - Find the depth up to which a tensile crack can occur. Delermink the total active force per unit lengh of the wall bepore the tensile crack gccurs. Assome tension stresses exist ard do not include the force from waler - filled Crack. - Delermine the tolal active force force per wall after the tensile crack occurs. 'Also, find Hhe locathon of the resultant. Neglect tersion shresses and include the force from the wafer-pilled crack. Find: your drawings unit lergth op the

Determine the active and passive force acting on a 3 meter high wall that supports clay with an undrained shear strength of 100 kPa and a unit weight of 19.20 kN/m

Q. Result. Thurst

3. Compute the resultant lateral force for the soil-wall system shown in Figure 3. You may ignore tensile cracks. Use • A- Coloumb • B - Rankine 0=30°, y=20kN/m³ 4m Ground water table 7m c=50KN/m², p=10°, y=18KN/m³ 0=25°, y=20KN/m³ 8 m Gravity wall Figure 3

A retaining wall with a smooth vertical back retains sand backfill for a depth of 6m. The horizontal backfill has the following properties. d' = 0, y = 16KN/m³; Vsat = 20k N/m³. Calculate the magnitude of total thrust against the wall for given conditions: (a) backfill fully drained but the top of wall is restrained against yielding: (b) backfill fully drained and the wall is free to yield, and (c) wall free to yield, water table at 3m depth without drainage. Determine the point of application for the resultant thrust case(c).

The following figure shows a section of an anchored retaining wall embedded into a saturated stiff clay layer. The sand has a unit weight of = 18 kN/m³, c' = 0 kPa and o' = 34º. The clay has a unit weight of = 20 kN/m³, c₁ = 80 kPa and = 0°. A uniform pressure of 40 kPa is applied on the soil surface. The short term stability of the wall is considered in an undrained analysis. Use the Rankin's theory of lateral earth pressure to determine the active and passive horizontal stresses. You should apply the requirements of AS 4678 and the partial factors of safety method in estimation of soil pressures. Assume the soil is in-situ and use a structural classification factor of ₁ = 1. 3m 1m Water table 1.5m 40 kPa Not to Scale Sand Clay Ta

Q: For the retaining wall shown in the following figure, determine the force per unit length of the wall for Rankine's active state. Also find the location of the resultant. 3 m z 3 m y = 16 kN/m³ ' = 30° c' = 0 Groundwater table Y sat = 18 kN/m³ ' = 35° c' = 0

(4) The backfill behind a retaining wall is clay with a unit weight of 18 kN/m', cohesion of 15 kPa, and an internal friction angle of 30°. The height of the wall is 6 m. The back of the wall is vertical and smooth, and the surface of the backfill is horizontal. Please calculate the active earth pressure on the wall back, including its distribution, the resultant force and its position.