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 12, Problem 12.9P
(a)
To determine
Find the friction angle
(b)
To determine
Find the friction angle
(c)
To determine
Find the friction angle,
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Using the data presented, calculated the effective angle of friction in (degrees) of the clay soil.
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Fundamentals of Geotechnical Engineering (MindTap Course List)
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- An embankment is shown in the figure. Determine the stress increase under the embankment at point A (6 m under the end). Solve asap Handwrittenarrow_forwardIn a site consisting entirely of clays, an electric friction conepenetrometer measures the cone resistance qc at a depth of8.0 m as 0.75 MN/m2. The water table is at 3.0 m below theground level. The unit weights of the clay above and belowthe water table are 16.5 kN/m3 and 19.0 kN/m3, respectively.Estimate the undrained shear strength, preconsolidationpressure, and overconsolidation ratio at this depth.arrow_forward11. Consider the downward flow of water through a layer of sand in the tank shown. (see picture below) Void ratio of the soil = 0.52 Specific Gravity = 2.70 Compute the value of h1. (Answer: 0.436) Compute the effective stress at A. (Answer: 17.44 kPa) Compute the effective stress at B. (Answer: 31.98 kPa) Compute the seepage force per unit volume. (Answer: 3.57 kN/m3)arrow_forward
- A cylindrical sample of soil having a cohesion of 80 kN/m2 and an angle of internal friction of 20° is subjected to a cell pressure of 100 kN/m2. Determine the maximum deviator stress at which the sample will fail in kPa a. 387 b. 333 c. 246 d. 255arrow_forwardThe P-wave velocity in a soil is 105 m/s. AssumingPoisson’s ratio to be 0.32, calculate the modulus of elasticityof the soil. Assume that the unit weight of soil is 18 kN/m3.arrow_forwardFor the fully saturated clay layer depicted below, calculate the undrained shear strength in kPa of the clay layer if the factor of safety against failure is equal to 1.2 for short-term stability. Hint: use a simplified chart-based approach.arrow_forward
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- A concrete dam retaining water is shown below, if the specific weight of concrete is 23.5 KN/m, find the factor of safety against sliding, the factor of safety against overturning, and the pressure intensity on the base. coefficient of friction between dam and foundation soil is 0.45 ? (y water 9.8 KN/m').arrow_forwardA concrete dam retaining water is shown in FIGURE FMHF-1. If the specific weight of concrete is 23.5 kN/m^3, determine the following: Factor of safety against sliding (coefficient of friction: 0.48)a. 2.48 b. 1.34 c. 3.77 d. 3.42 39. Factor of safety against overturninga. 1.34 b. 3.105 c. 3.416 d. 1.987 40. Maximum soil pressure intensitya. 73.22 b. 183.48 c. 173.53 d. 58.48arrow_forwardA manometer with diameters L and d is used to measure the pressure difference P1 − P2. Both ends experienceatmospheric pressure. Completely derive the correct expression for the pressure difference:arrow_forward
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