Principles of Foundation Engineering (MindTap Course List)
8th Edition
ISBN: 9781305081550
Author: Braja M. Das
Publisher: Cengage Learning
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Chapter 3, Problem 3.26P
To determine
Find the modulus of elasticity
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The 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.
The P-wave velocity in a soil is 105 m/sec. Assuming Poisson’s ratio to be 0.32, calculate the modulus of elasticity of the soil. Assume that the unit weight of soil is 18 kN/m3.
The following soil temperatures (C) were measured during the Great Plains Field Program at O'Neil, Nebraska
Table1. Data table of soil temperature measured during the Great Plains Field Programat O'Neil, Nebraska
Question: Estimate the amplitude of the surface temperature wave and the time of maximum surface temperature from extrapolation of the soil temperature data.
Chapter 3 Solutions
Principles of Foundation Engineering (MindTap Course List)
Ch. 3 - Prob. 3.1PCh. 3 - Prob. 3.2PCh. 3 - Refer to Figure P3.3. Use Eqs. (3.10) and (3.11)...Ch. 3 - Prob. 3.4PCh. 3 - Prob. 3.5PCh. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - Prob. 3.10P
Ch. 3 - Prob. 3.11PCh. 3 - Following are the standard penetration numbers...Ch. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - Prob. 3.16PCh. 3 - Prob. 3.17PCh. 3 - Prob. 3.18PCh. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - Prob. 3.21PCh. 3 - Prob. 3.22PCh. 3 - Prob. 3.23PCh. 3 - Prob. 3.24PCh. 3 - Prob. 3.25PCh. 3 - Prob. 3.26PCh. 3 - Prob. 3.27P
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- What is the intensity of active earth pressure at a depth of 10.0 m in dry sand with an angle of shearing resistance of 30 degrees and unit weight of 18kN /m ^ 3 ?arrow_forwardA soil profile is shown in Figure 7.19. subsidence caused by primary consolidation of a 16 ft thick clay layer caused by an embankment of 600 kg/m² laid above the soil surface. The clay is normally consolidated (normally consolidated). 23 ft thick layer of sand located above the clay layer has the following data: Gs = 2.65 and e = 0.7.arrow_forwardA submerged stratum of clay has a thickness of 15m. The average water content of samples taken from stratum is 54%, and the specific gravity of the soil constituents is 2.78. What is the effective vertical pressure, due to the weight of the clay, at the base of the stratum?arrow_forward
- A soil profile consisting of three layers is shown in the figure. Calculate the values of the total stress, effective stress ad pore waterpressureat points A, B, C, and D for the following cases. In each case, plot the variations with depth. Characteristics of layers 1, 2, and 3 for each case are given belowarrow_forwardIn typical deposit of submerged soil, the approximate depth at which the inter-granular pressure is equal to 60 kN/m² is: (Ysat = 30 kN/m³)arrow_forwardA layer of sand 6 m thick lies beneath a clay stratum 5 m thick and above abed thick shale. In order to determine the permeability of sand, a well was driven to the top of the shale and water pumped out at a rate of 0.01m3/sec. Two observation wells driven through the clay at 15m and 30 m from the pumping well and water was found to rise to levels of 3m and 2.4 m below the ground water surface. Calculate the permeability of soil.arrow_forward
- In a field vane shear test, a 150-mm long and 75-mm wide vane is pressed into a soft clay at the bottom of a borehole. If the clay fails at a torque of 50 Nm, determine the shear strength of the clay?arrow_forward(a) Samples taken from a uniform deposit of granular soil are found to have a unit weight of 19.6 kN/m3 and an angle of internal friction of 35°. What is the shearing strength of the soil on a horizontal plane at a point 4 m below the ground surface?arrow_forwardA borehole at a site reveals a soil profile shown below. Calculate the effective stress (σ’) in lb/ft2 at the bottom of the soft clay layer. Assume that specific gravity (Gs) of all soil layers is 2.65.arrow_forward
- Question-2: A soil profile is shown in Figure 2.1. Calculate and plot the variation of total vertical stress, pore pressure and effective vertical stress with depth.arrow_forwardA soil profile consists of a clay layer underlain by a sand layer, as shown in Figure. If a tube is inserted into the bottom sand layer and the water level rises to 1 m above the ground surface, determine the vertical effective stresses and porewater pressures at A, B, and C. What is the value of the porewater pressure at A to cause the vertical effective stress there to be zero?arrow_forwardInformation for a soil profile is presented in following table: Depth (m) Density (kg/m3) Wet Density (kg/m3) Sand 5 1600 1900 Silty Clay 5 1050 1750 Water Table 2m Below the surface What were the total and effective stresses at each layer boundary?arrow_forward
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