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°).

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°).

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter16: Lateral Earth Pressure

Section: Chapter Questions

Problem 16.2P

See similar textbooks

Related questions

Q: A 6m high vertical retaining wall is used to retain a soil of unit weight 18 kN/m³ and slope 20°.…

A: Given: Height of wall, H = 6 m Slope angle, β = 20° Internal friction angle, ϕ= 40° Unit weight of…

Q: 1. A retaining wall moved outward by a lateral strain of 0.08% caused by an additional 0.7kPa…

Q: A 6m high vertical retaining wall is used to retain a soil of unit weight 18 kN/m3 and slope 20°.…

A: Given: Height of wall, H = 6 m Slope angle, β = 20° Internal friction angle, ϕ = 40° Unit weight of…

Q: Due to clogging of the drainage system, the water table has built up to a depth of 4m below the…

Q: A 4.5 m high retaining wall is restrained from yielding. The wall supporting a horizontal…

A: Given data: Height of Retaining wall=4.5 m Unit weight=17.4 KN/m3 Angle of friction=30 GW table=3m…

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

Q: Question 01 ) Calculate the total lateral earth force in rest condition for the retainig wall shown…

A: Calculate K0 ,the active earth pressure. K0=1-sin∅1+sin∅ Substitute 30° for∅ at top 3m and 40° for ∅…

Q: 1) The fill behind the brickworks retaining wall in Figure 1 has a density of 1800kg/m². A live load…

A: Given data: Density γs=1800kg/m3Density of brickwork γbrickwork=1900kg/m3Coefficient of lateral…

Q: A retaining wall has a vertical back and is 10m high. The soil is sandyloam of unit weight 20 kN/m3.…

A: Given Values:Unit Weight y=20kN/m3.Height H =10mCohesion c =12kN/m3.Angle of Internal Friction α=20…

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 vertical retaining wall 6 m. high retains a horizontal backfill having the following properties.…

Q: Determine the lateral earth force at rest per unit length of the retaining wall when the groundwater…

A: Solution:

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 retaining wall 6m high retains sand with o=30° and unit weight 24 kN/m3 up to a depth 3m from top.…

A: Given data: Soil 1: C=0ϕ=30oγ=24 kN/m3H1=3 m Soil 2: C=20 kN/m2ϕ=20oγ=18 kN/m3H2=3 m

Q: Question Attached

A: Given:- ∅=0 0h=21 footcohesion = 630 psfUnit weight =113pcfTo find:-a) Rankine active earth pressure…

Q: 2. A retaining wall is 8.2 m high. The soil is sandy loam of density 1.8 Mg/m^3. It shows a cohesion…

A: Let us estimate the magnitude of resultant thrust and location of resultant thrust in step 2.

Q: Determine the total active thrust, in kN/m, for a retaining wall (height 5.60 m) with horizontal…

Q: vertical retaining wall 6 m high is supporting a horizontal backfill of soil having a void ratio of…

Q: = A vertical retaining wall 8.8 meters high retains a horizontal backfill having the following…

A: Given Data:Height of retaining wall = 808mVoid ratio = 0.78sp. gravity=2.69water content=28%Angle of…

Q: 5 m Retaining wall 2 Sm XPomt H Sand Impervious stratum

Q: Calculate the passive earth pressure coefficient for the foundation soil to the right of the toe of…

A: Given data for the soil to the right of the toe Moist unit weight γm = 18 KN/m3 Angle of internal…

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

Q: Question Attached

A: (a) Consider the free body diagram;

Q: A retaining wall 6-m high supports a cohesionless soil having a dry density of 1600 kg/m³, angle of…

Q: A6 m high retaining wall retains 3 m of Soil 1 which overlays Soil 2 as shown in the figure. The…

Q: In Problem 16.1, if the entire soil behind the wall is sub- merged with the water level at the…

A: OCR = 1.5 Angle of internal fraction = ϕ = 33∘ Height of the vertical wall = 5m γsat = 20KN/m3 γw =…

Q: A retaining wall is 7m high, with its back face smooth and vertical. It retains sand with its…

A: Geotechnical designing is a specialization of structural designing that spotlights on the conduct…

Q: A concrete gravity retaining wall is 6.6 m high and 3.2 m wide. If the thickness of the soil at…

Q: Two soil profiles are used as backfill behind a retaining wall as shown in the figure, where y, is…

Q: A retaining wall 6m high retains sand with φ = 30° and unit weight24kN/m3 upto the depth of 3 m from…

A: Solution Given Data φ = 30° c = 20kN/m2 and φ = 20° unit weight=24kN/m3 Uniform surcharge=100…

Q: A retaining wall 6 m high with a vertical back supports a cohesionless soil with a dry unit weight…

A: Condition 1 H=6m Dry unit weight=16 KN/M3 SATURATED UNIT WEIGHT= 19.62 KN/M3 FRICTION ANGLE= 35…

Q: Question Attached

A: The flow of fluid includes movement of an unbalanced fluid. As long as unequalled forces are in…

Q: Assume that a rigid, unyielding wall can be inserted into a soil mass where the at-rest lateral…

A: Lateral earth pressure is defined as the pressure which is exerted by soil in the horizontal…

Q: high frictionless retaining wall supports a soil with cohesion, c'=12 kPa, friction angle=23…

Q: A cantilever retaining wall of 7 meter height (Fig. Ex. 11.2) retains sand. The properties of the…

Q: نقطة واحدة Passive lateral earth thrust for :cohesionless soil is affected by Pore water pressure…

A: The passive lateral earth pressure for cohesionless soil is affected by the height of the retaining…

Q: A cantilever retaining wall of 7 meter height (Fig. Ex. 11.2) retains sand. The properties of the…

Q: Calculate the active and passive earth pressures . And the distance at which the net active force…

A: ka = 1-sin∅1+sin∅ kp = 1/ka

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: Determine the total active thrust, in kN/m, for a retaining wall (height 5.12 m.) with horizontal…

Q: Clay y = 17.2 kN/m³ ф = 0° c = 30 kN/m² 10 m Base soil 3.3 m 5000 kN 2.0 m Clay The factor of safety…

A: Given- Height of retaining wall H=10 mweight W=5000 kNunit weight of water-γw=9.81 kN/m3FOS needs to…

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

Q: A retaining wall 6m high is supporting a horizontal backfill having a dry unit weight of 1600…

A: Given data: H = 6m Dry unit weight = 16001000×9.81= 15.7 KN/m3 φ = 320 e = 0.68

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

Q: Calculate the total lateral earth force in rest condition for the retaining wall shown below. ( Note…

Q: A retaining wall 6 m high supports cohesionless soil having a dry density of 1600 kg/m³,angle of…

Q: Find the passive earth pressure coefficient. For a vertical retaining wall having a backfill of dry…

Question

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Lateral earth pressure distribution against retaining walls

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

Assume that a frictionless retaining wall 15 ft high having a vertical backface supports a sandy soil with a unit weight of 118 pcf and an angle of internal friction of 34°. The soil backfill is level. Calculate the difference in the lateral force imposed onto the wall (per foot of wall length) when the at-rest lateral pressure condition applies compared to when the active lateral pressure condition applies (express the difference as a percentage increase related to the active pressure condition).
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.
Assuming the retaining wall shown below is pushed to the right by an external force, calculate the passive lateral earth pressure coefficient assuming that the wall friction is equal to 18o. Assume that the backfill is under drained conditions and the water table is below the base of the retaining wall.
Assume that a rigid, unyielding wall can be inserted into a soil mass where the at-rest lateral pressure condition exists. Explain the effect that soil submergence will have on the total lateral force (the summation of lateral pressures) that acts against one side of the wall.
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.
Calculate the active and passive earth pressures . And the distance at which the net active force and passive force will act on the retaining wall.
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.
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.
Q.5 A retaining wall has a vertical back and is 7.32 m high. The soil is sandy loam of unit weight 17.3kN/m3. It has a cohesion of 12 kN/m2 and Ø = 20°. Neglecting wall friction, determine the active thrust on the wall. The upper surface of the fill is horizontal.
Calculate the total lateral earth force in rest condition for the retaining wall shown below. ( Note that the bottom 3 m layer is in dry condition )
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.
A smooth unyielding wall retains a normally consolidated clay with no lateral movement of soil, that is at rest condition is assumed. a) Compute the coefficient of earth pressure at rest if the clay has a plasticity index of 7.8%. (Answer: 0.455) b) Compute the location of the resultant force. (Answer: 19.81 kN) c) Compute the total lateral force acting on the wall. (Answer: 1.20)