13.16 Assume that the retaining wall shown in Figure 13.39 is friction- less. For each problem, determine the Rankine passive force per unit length of the wall, the variation of e earth pressure with depth, and the location of the resultant. Problem $' (deg) 13.16 13.5 m 29 18.3 kN/m Sand Unit weight = y (or density = p) 8' (angle of wall friction). Figure 13.39 Titatengetiabet utilgiengelig Gienonnrettet

13.16 Assume that the retaining wall shown in Figure 13.39 is friction- less. For each problem, determine the Rankine passive force per unit length of the wall, the variation of e earth pressure with depth, and the location of the resultant. Problem $' (deg) 13.16 13.5 m 29 18.3 kN/m Sand Unit weight = y (or density = p) 8' (angle of wall friction). Figure 13.39 Titatengetiabet utilgiengelig Gienonnrettet

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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3. Draw the pressure diagram of the retaining wall with the soil profile shown both in active and passive cases. Solve for the active and passive lateral force and its location from the bottom of the wall. 4.5 KPa Gs = 2.73 e = 0.67 Ø = 27° C =0 KPa %3D 4m Gs = 2.66 %3D e = 0.85 Ø = 34° C = 5 KPa 6m
The following concrete gravity wall of 7 m in height retains a sandy backfill. A sand sample from the backfill was brought to the laboratory and tested in a direct shear device under a normal stress of 100 kPa and failure occurred at a shear stress level of 63.4 kPa. Using the Rankine theory, determine the total active earth pressure at the base of the wall when: a) the backfill is dry, b) the backfill is partially submerged in water for a water level at 3.5m from the base of the wall, c) the backfill is fully submerged in water, which means the water table is at the ground surface. Notes: - The saturated unit weight of the soil is 19 kN/m³ -The moist unit weight of the soil is 17 kN/m³ - The dry unit weight of the soil is 15 kN/m³ Summarize your results in this table: b) Total active earth pressure at the base of the wall (kPa)
Assume a smooth retaining wall as shown below. Calculate the active force due to the earth pressure only acting on the right side of the wall in kN per unit length (considering a 1 m length in the out-of-plane direction). The soil properties shown in the figure apply to either side of the wall g = 9.81m/s2
An 8 m tall retaining wall holds cohesionless sand with a density and angle of internal friction of 1.85 Mg/m3 and 33°, respectively. If the surface of the backfill slopes upwards at 86° to the vertical, Use Rankine’s conditions to find the force per unit length of the wall and its location for (a) Active State (b) Passive State Please draw the pressure diagram neatly for both cases