Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 14, Problem 14.17CTP
To determine
Find the Rankine’s and Coulomb’s active passive pressure coefficients for
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6. What is the gauge pressure at pint A,
Y1 = 10 kN/m?
A]
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%3D
50 cm
10 cm
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4.
-50 cm
Please find the earth pressure at rest distribution value and resultant force on the retaining wall in figure below. The static side pressure coefficient is 0.5.
in the figvax=4.903 m/s^2, ay =9.806m/s^2.find the pressure at A, B, C
Chapter 14 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
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- A vertical cantilever wall 6 m high retains soil that has a following properties Unit weight of soil = 19.2 kN/m^3 Angle of friction = 30 degrees The surface of the backfill behind tthe wall is inclined at a slope of 3 horizontal to 1 vertical and the wall has moved sufficiently to develop the active condition. a) Determine the Rankine Coefficient of active earth pressure. b) Find the normal force acting at the back of the wall considering a unit width. (in kN). c) Determine the shear force acting at the back of the wall. (in kN)arrow_forwardA vertical plate shown is submerged in vinegar having a specific gravity of 0.80. Assume unit weight of water is 9.79 kN/m³. 2 m 3 m A1 4 m Az 3 m 2 m 4. Find the depth of the center of pressure of section A¡ from the liquid surface. 5. Find the magnitude of the hydrostatic force on one side of the plate. 6. Find the depth of the center of pressure of the whole section from the liquid surface.arrow_forward3. Calculate and draw to scale the earth pressures along the back of the retaining wall in the Figure 1. Then calculate the over-turning moment around point o . p = 1800 kg/m3 C = 0 kPa 1.5m P = 22 p = 1600 kg/m³ c =15 kPa O = 18 1.5m 0.5m Point O 0.5m 1m Figure 1arrow_forward
- Determine the active lateral earth pressure on the frictionless wall shown in the figure below. Sketch the lateral earth pressure distributions and calculate the resultant force and its location from the base of the wall. Also, determine the moments of passive and active forces. Neglect seepage effects. Use Rankine's earth pressure method. (w = 10 kN/m) 3.0m Ysat 20 kN/m³ y = 19 kN/m²³ ' = 30° Ysat = 20 kN/m³ y = 18 kN/m³ o = 28 6.0marrow_forwardCalculate the active and passive earth pressures AND. determine the distance at which the net active and passive force will acting on the retaining wall Ya=19 kN /m3 - 34 c=3kp 2m 6=34 %3D Vd = 17.54kN/m3 8=32"; ċ=o %3D 1.5m %3D = 21. BkN/m3 V sat 8= 31; c'= o %3D 1.5m %3D Ysat = 22.lkN/m3 5 m 8=30;cioarrow_forwardDetermine the magnitude and location of the resultant hydrostatic forceacting on the submerged rectangular plate AB shown.The plate has a width of 1.5 m; ρw = 1000 kg/m3.arrow_forward
- Determine the resultant force the water exerts on side AB and on side CD of the inclined wall. The wall is 0.75 m wide.arrow_forwardA 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.arrow_forwardDetermine the active Rankine earth pressure (magnitude and location) against the 1-foot thick retaining wall in the figure at right. 15 ft 1.5 ft 2 ft 4 ft Sand c=0 1 = 28° Y = 127 lb/ft³arrow_forward
- A vertical plate shown is submerged in vinegar having a specific gravity of 0.80. Assume unit weight of water is 9.79 kN/m3. a. Find the depth of the center of pressure of section A1 from the liquid surface. b. Find the magnitude of the hydrostatic force on one side of the plate. c. Find the depth of the center of pressure of the whole section from the liquid surface.arrow_forwardA vertical, trapezoidal gate in the face of a dike is subjected to sea water pressure (s = 1.3) on one side. The upper edge is in the water surface and is 1.577 meters long. Two edges are vertical and measured 2.77 meters and 3.77 meters each. Determine the total pressure on the gate and the location of the center of pressure.arrow_forwardQuestion Attachedarrow_forward
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