3 – A railroad is traversing parallel to a 20 ft high retaining wall as shown in the figure below. This railroad load can be considered a strip load and you are tasked to find the lateral pressure on the 20ft high wall due to this surcharge and the location (z) of that force. a) Calculate the total horizontal force per unit length (P)

3 – A railroad is traversing parallel to a 20 ft high retaining wall as shown in the figure below. This railroad load can be considered a strip load and you are tasked to find the lateral pressure on the 20ft high wall due to this surcharge and the location (z) of that force. a) Calculate the total horizontal force per unit length (P)

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter13: Lateral Earth Pressure: At-rest, Rankine, And Coulomb

Section: Chapter Questions

Problem 13.8P

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A vertical retaining wall 6m high is supporting ahorizontal backfill having a weight of 16.5kN/m3 and asaturated unit weight of 19kN/m3. Angle of friction is 30degrees. Ground water table is located 3m below theground surface. A)Determine the at rest lateral earth pressure force permeter length of the wall.b) Determine the location of the resultant force.c) Determine the at rest lateral earth force per meterlength of the wall if it carries a surcharge of 50 kPa.
The cross section of a proposed concrete retaining wall is shown in Figure 4. The unit weight of the concrete being 24kN/m3. The soil carries a uniformly distributed load of 40kN/m2 at the top. Given c=0, f=32°, gsoil=17.5kN/m3 and µ=0.5. From the data: Check the stability of the retaining wall against sliding and overturning Determine the maximum and minimum pressure under the retaining wall.
A smooth gravity wall retains a 12 m-high backfill as shown in the figurebelow. The top 8 m is sand, which is underlain by some clay. The soilproperties are as follows:Sand: γm = 18.9 kN/m 3, γsat = 19.8 kN/m 3; φ' = 32°Clay: γm = 20.1 kN/m 3; φ' = 18°, c' = 20 kPaAssuming that the entire soil is in the active state, find the location andmagnitude of the total thrust on the wall.
A retaining wall with a vertical smooth back is 8 m high. It supports a cohesionless soil (y = 19 kN/m², phy= 30°). The surface of the soil is horizontal. The thrust on the wall is:
A vertical retaining wall 6 m high is supporting a horizontal backfill having a weight of 16.5 kN/m3 and a saturated unit weight of 19kN/m3. Angle of internal friction of backfill is 30°. Ground water table is located 3m below the ground surface. Determine the at rest lateral earth force per meter length.Determine the location of the resultant force.Determine the at rest lateral earth force per meter length if it carries a surcharge of 50 KPa. INCLUDE FBD.
2. The figure shows a retaining wall;a. Determine the total active force acting on the wall considering 1m width.b. Determine its overturning moment.c. If a surcharge of 18Kpa is applied on top of the backfill ,Calculate its total active force
PLEASE ANSWER ASAP A 6-m vertical unyielding retaining wall is supporting a cohesionless loose coarse-grained backfill having a unit weight of 16 kN/m3 and an angle of friction of 250. It carries a uniform surcharge of 15 kN/m3. Determine the total lateral force (in kN) per unit length of the wall.
The section of masonry dam is shown in Fig. U. If the uplift pressure variesuniformly from full hydrostatic at the heel to full hydrostatic at the toe, but acts only 2/3 of the area of the base, find: (a) the location of the resultant, (b) factor safety against overturning, (c) factor of safety against sliding if the coefficient of friction between base and foundation is 0.60.
Determine the factor of safety against bottom heave for the braced cut described in Problem 15.18. Use Eqs. (15.66) and (15.70). For Eq. (15.70), assume the length of the cut, L = 18 m. 15.18 Refer to Figure 15.51 in which = 17.5 kN/m3, c = 60 kN/m2, and center-to-center spacing of struts is 5 m. Draw the earth pressure envelope and determine the strut loads at levels A, B, and C. FIG. 15.51
The section of the masonry dam is shown in Figure3a. If the uplift pressure varies uniformly from fullhydrostatic at the heel to full hydrostatic at the toe,but acts only over 2/3 of the area of the base, find(a) the location of the resultant; (b) the factor ofsafety against overturning; and (c) the factor ofsafety against sliding if the coefficient of frictionbetween base and foundation is 0.60. Unit weight of concrete and masonry is 23.54 kN/m3for all the problems NOTE: CLEAR HANDWRITTEN SOLUTION
Problem: The cantilever retaining wall shown in the figure resists active lateral earth pressure throughout its length. 1. Calculate the total lateral force on the wall due to active pressure in KN2. Determine the overturning moment due to lateral earth pressure in KN-m.3. Determine the resisting overturning moment in KN-m
The backfill behind a retaining wall, located above the water table, consists of a sand of unit weight 17 kN/m3. The height of the wall is 6 m and the surface of the backfill is horizontal. Determine the total active thrust on the wall according to Rankine’s theory if f’ = 37o. If the wall is prevented from yielding, what is the approximate value of the thrust on the wall?