A smooth, vertical wall retains a 7 m-high granular backfill with the ground level being horizontal. The water table lies at a depth of 3 m from the top. The friction angle of the backfill is 32°. The bulk and saturated unit weights of the soils are 16.5 kN/m3 and 18.0 kN/m3, respectively. Assuming the soil is in the active state, determine the magnitude and location of the horizontal thrust on the wall.

A smooth, vertical wall retains a 7 m-high granular backfill with the ground level being horizontal. The water table lies at a depth of 3 m from the top. The friction angle of the backfill is 32°. The bulk and saturated unit weights of the soils are 16.5 kN/m3 and 18.0 kN/m3, respectively. Assuming the soil is in the active state, determine the magnitude and location of the horizontal thrust on the wall.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter14: Lateral Earth Pressure

Section: Chapter Questions

Problem 14.6P

See similar textbooks

Related questions

Q: A 5 m-high smooth, vertical wall retains a granular backfill with unit weight of 18 kN/m3 and a…

Q: For a vertical retaining wall having a backfill of dry sand inclined at an angle of 20° from the…

Q: A 6 m high retaining wall with a vertical back has a backfill of silty sand with a slope of 10° for…

Q: A 4m high vertical wall supports a saturated cohesive soil φ = 0 withhorizontal surface. The top…

A: Solution: Given Data: For 2.5 m soilγt1=17.6 kN/m3C1=15 kN/m2φ=0For 1.5 m soilγt2=19.2 kN/m3C1=20…

Q: A retaining wall 5.1 m high is supporting a horizontal backfill having a dry unit weight of 14.6…

Q: A retaining wall 8 m high supports cohesionless soil having a dry density of 1600 kg/m³, angle of…

Q: A retaining wall with vertical back is 8 m. high. The density of top 3 m. of fill is 1.75 Mg/m³ and…

Q: Given the cantilever gravity retaining wall supporting a backfill of coarse-grained soil as shown.…

A: Retaining wall: A retaining wall is a system that is designed and made to survive lateral soil…

Q: A 5 m high vertical wall retains an overconsolidated soil where OCR = 1.5, c' = 0, 6' = 33°, and y =…

A: Given Data: Height of vertical wall (H) = 5m Over consolidated soil OCR=1.5 Cohesion (C')=0 (means…

Q: A smooth vertical wall retains a sandy backfill underlain by clay with a surcharge q=200 kN/m.…

Q: SITUATION. A 9 m high retaining wall is laterally supported at the top and fixed at the base. The…

Q: Problem 1 A 4.5 m high retaining wall is supporting a horizontal backfill having a unit weight of…

A: The given data is: Density of soil (γ) = 15.7 kN/m3 Saturated Density of soil (γs) = 19.3 kN/m3…

Q: A retaining wall has 8 m high is to support a clay deposit having saturated unit weight of 20 kN/m3…

Q: In Fig. 1 a retaining wall has a vertical back and is 8 m high. Determine the magnitude and the…

A: Let all the terms above the water table are designated as 1, while below the water table it is…

Q: For a vertical retaining wall having a backfill of dry sand inclined at an angle of 20° from the…

Q: A retaining wall with a vertical back of height 8 m, supports soil of density 1.75 Mg/m', and angle…

A: active earth pressure coefficient ka=1-sinϕ1+sinϕ

Q: A retaining wall 8 m high supports a cohesionless soil having a dry density of 1600 kg/m³, angle of…

Q: A retaining wall with a smooth vertical back retains sand backfill for a depth of 6 m. The backfill…

A: i) Resultant thrust (at rest) is 97.308 Kn/m ii) Resultant thrust (active) is = 66.21…

Q: A vertical wall 6 m high above the water table, retains a 20° soil slope, the retained soil has a…

A: When the soil is…

Q: A 4.5 m high retaining wall is supporting a horizontal backfill having a unit weight of 15.7 kN/m³…

A: Solution-

Q: SOLVE FOR THE LOCATION AND MAGNITUDE OF THE PASSIVE AND ACTIVE THRUST OF THE RETAINING WALL. Along…

A: For passive pressure Kp=1+sinϕ1-sinϕ=1+sin30°1-sin30°,=3as it is a cohesive soilthus,…

Q: For a vertical retaining wall having a backfill of dry sand inclined at an angle of 20° from the…

Q: A 10m high gravity retaining wall is required to support a hard clay backfill having a level surface…

A: Retaining walls are the structures which are used to hold the soil mass thereby helping in holding…

Q: A 6 m high retaining wall with a vertical back has a backfill of silty sand with a slope of 10° for…

A: Night of embankment, slope of backfill and horizontal and vertical direction load have been given…

Q: For the frictionless wall retaining a stratified soil and shown in Fig. E3.2, determine= (a) The…

A: Disclaimer Since you have posted a question with multiple sub-parts, we will solve first three…

Q: 2. Figure 2 shows a non-yielding vertical wall retaining a sandy backfill underlain by clay.…

Q: Assume that a frictionless retaining wall 15 ft high having a vertical backface supports a sandy…

A: Given: Height of the wall (H) = 15 ft. Angle of internal friction (ϕ) = 34o Unit weight of the soil…

Q: The ratio of total passive earth pressure to the total active earth pressure for saturated clay…

Q: A vertical retaining wall of 5m height has to support soil having unit weight of 18KN/m, effective…

Q: If the passive resistance provided by the retained soil in front of the wall shown in figure below…

Q: A 5 m high retaining wall has top 2 m of sand of unit weight 19.5 kN/m³ and = 30° and remaining 3 m…

A: Given data, Unit weight of sand = 19.5 kN/m³ Unit weight of soil below water = 21 kN/m³ C = 15 KPa…

Q: A vertical retaining wall 6.1 meters high retains a horizontal backfill having the following…

A: Given data in question Specific gravity Void ratio Water content Water table Friction angle To…

Q: A rigid smooth retaining wall of height 7 m with vertical back face retains saturated clay as…

Q: A counterfort wall of 10 m height retains dry non-cohesive backfill. The void ratio and angle of…

Q: A retaining wall 8 m high is supporting a horizontal backfill having a dry unit weight of 15.696…

A: To Find :- Rankine active force and it's location from wall base

Q: A 4m high vertical wall supports, a saturated cohesive soil (du= 0) with horizontal surface. The top…

A: Given:- The height of the retaining wall = 4 m The depth of the top of the backfill = 2.5 m The…

Q: b) A 6.1 m high retaining wall consists of 2 layers of soils (Figure QIb). Soil 1 is above the water…

A: Retaining wall It is a structure which is designed and constructed in order to bear horizontal…

Q: Q.5 A retaining wall has a vertical back and is 7.32 m high. The soil is sandy loam of unit weight…

A: Solution Feight H= 7.32 m unit weight γ= 17.3 KN/m2 C= 12 KN/m2 ϕ=200

Q: Determine the magnitude and the location of the active thrust on the smooth vertical wall shown…

A: - For upper sand layer, Co-efficient of active earth pressure,…

Q: A retaining wall of 10 m height retains sandy soil. The backfill void ratio and angle of internal…

Q: A 3 m high vertical earth retaining wall retains a dry granular backfill with angle of internal…

Q: A retaining wall 8 m high supports a cohesionless soil having a dry density of 1600 kg/m^3, angle of…

Q: A smooth vertical wall of height 6 m retains a granular backfill with unit weight of 22 kN/m³ and a…

Q: نقطة واحدة A retaining wall has 8 m high is to support a dry cohesionless sand with an angle of…

Q: The following figure shows a section of an anchored retaining wall embedded into a saturated stiff…

A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

Q: A7 m high retaining wall retains two sides of soil profile as shown in Figure Q1(c). A uniform…

Q: 5. Determine the magnitude and the location of the active thrust on the smooth vertical wall shown…

Concept explainers

Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.

Question

A smooth, vertical wall retains a 7 m-high granular backfill with the ground

level being horizontal. The water table lies at a depth of 3 m from the top.

The friction angle of the backfill is 32°. The bulk and saturated unit weights

of the soils are 16.5 kN/m3 and 18.0 kN/m3, respectively. Assuming the soil is

in the active state, determine the magnitude and location of the horizontal

thrust on the wall.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Step 9

Step 10

Trending now

This is a popular solution!

Step by step

Solved in 10 steps with 24 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

A retaining wall 7 m high, with its back face smooth and vertical. It retains sand with its surface horizontal. Using Rankine’s theory, determine the active earth pressure at the base when the backfill is saturated. Take γ=18 kN/m^3 ,ϕ=30°, γ_sat=21 kN/m^3.
A retaining wall 7 m high, with its back face smooth and vertical. It retains sand with its surface horizontal. Using Rankine’s theory, determine the active earth pressure at the base when the backfill is dry. Take γ=18 kN/m^3 ,ϕ=30°, γ_sat=21 kN/m^3.
A retaining wall 7 m high, with its back face smooth and vertical. It retains sand with its surface horizontal. Using Rankine’s theory, determine the active earth pressure at the base when the backfill is submerged with water table at the surface. Take γ=18 kN/m^3 ,ϕ=30°, γ_sat=21 kN/m^3.
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
A retaining wall has a vertical back and is 10m high. The soil is sandyloam of unit weight 20 kN/m3. It shows a cohesion of 12 kN/m2 and φ = 20°. Neglecting wall friction, determine the thrust on the wall. Theupper surface of the fill is horizontal
a retaining wall supports a horizontal backfill that is composed of two types of soil. first layer: 4.92 meters high, Unit weight of 16.29 kN/m^3, coefficient of active pressure of 0.296 second: 6.85 meters high, Unit weight of 18.31 kN/m^3, coefficient of active pressure of 0.302 determine the distance of the total active force measured from the bottom of the wall
A rigid retaining wall 5m high supports a backfill of cohesionless soil with angle of 40°. The water table is below the base of the wall. The backfill is dry and has a unit weight of 19kN/m³. Determine Rankine's passive earth pressure per meter length of the wall.
Calculate the lateral force resulting where an active soil pressure condition develops against the backface of a frictionless wall 20 ft high if the backfill surface is level and the retained soil is cohesionless (unit weight of 115 pcf and angle of internal friction of 35°).
A retaining wall supports a horizontal backfill that is composed of two types of soil. First layer: 4.27 meters high, Unit weight of 17.25 kN/m3, coefficient of active pressure of 0.286 Second layer: 6.27 meters high, Unit weight of 18.27 kN/m3, coefficient of active pressure of 0.309 Determine the distance of the total active force measured from the bottom of the wall. Round off to three decimal places.
An 8 m high retaining wall supports a 5.5 m deep sand (γd = 18.5 kN/m3, Φ = 34°) overlying a saturated sandy clay (γsat = 20.3 kN/m3, Φ = 28°, c = 17kPa). The groundwater level is located at the interface of two layers. Determine the magnitude (kN) and location (m) of the resultant active force on the 25m long wall.
A retaining wall is 4 metres high. Its back is vertical and it has got sandybackfill upto its top. The top of the fill is horizontal and carries a uniformsurcharge of 85kN/m2. Dry density of soil = 18.5 kN/m3. Moisture content of soil above water table = 12%. Angle of internal friction of soil = 30°, specific gravity of soil particles = 2.65. Porosity of backfill = 30%. The wall friction may be neglected. Determine the following(i) Depth of Zero tension Crack
A 8-meter-high retaining wall, with a perpendicular back, retains the soil with a unit weight of 17.17 kN/m3. The cohesion and the internal friction angle of the backfill were measured as 13 kPa and 20°, respectively. Assume that there is no friction on the wall and the surface of the backfill is horizontal. Calculate the expected active force on the wall and the position of this force.