100 psf Assignment: 30 psf - B 35° Solve the following problem, neatly and orderly. Follow your assignment or task guides. ef150 pst Problem: A soil element is shown in Figure 2.33. Determine the following: (Compare the three methods) a. Maximum and minimum principal stresses 30 psf b. Normal and shear stresses on plane AB Figure 2.33

100 psf Assignment: 30 psf - B 35° Solve the following problem, neatly and orderly. Follow your assignment or task guides. ef150 pst Problem: A soil element is shown in Figure 2.33. Determine the following: (Compare the three methods) a. Maximum and minimum principal stresses 30 psf b. Normal and shear stresses on plane AB Figure 2.33

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter3: Natural Soil Deposits And Subsoil Exploration

Section: Chapter Questions

Problem 3.19P

See similar textbooks

Similar questions

Q#1. (a) Explain in detail the concept of Principle plane and Principle stress applied in soil in your own words. (b). Explain the Mohr-Columb Theory for the c-ø soil in your own words.
Q#1. (a) Explain in detail the concept of Principle plane and Principle stress applied in soil in your own words. (b). Explain the Mohr-Columb Theory for the c-ø soil in your own words. Solve only part B
Q1: A. Answer in True or False 1. A soil has MOUSORT &Uroda You described Symber 4. Decidubing water Comont 5. Water molecules are considered polar and known as dipoles. T 19 A 6. Dry Density is the smallest density. 7. Capillary rise is directly proportional to the pore channel diameter. 8. The unconfined compressive strength is twice the undrained cohesion. 9. Piping or boiling occurs when effective stress equals to zero. 10. It is assumed that the secondary compression begins when the primary consolidation ends
Three specimens of clay having a small air-void content were tested in the shear box. Shear loading was started immediately after the application of the normal load and was completed in 8 minutes. The results are as follows: 241 117 3 3 Normal Stress (kN/m²) 145 Shear stress at failure (kN/m²) 103 Find the apparent cohesion of the clay. 337 131 Find the angle of shearing resistance of the clay. What value of c would be obtained from an unconfined compression test on the same soil?
ASAP
2. A series of consolidated, undrained triaxial tests were carried out on specimens of a saturated clay under no backpressure. The test data at failure are summarized: Confining Pressure (kPa) Deviator Stress (kPa) Pore Water Pressure (kPa) 150 192 80 300 341 154 450 504 222 a. Draw the Mohr circles and find the cohesion and friction angles in terms of effective stresses. b. Compute Skempton’s A-parameter at failure for all three specimens. c. Is the soil normally consolidated or overconsolidated? Why? d. Another specimen of the same clay that was consolidated under a cell pressure of 250 kPa was subjected to a consolidated, drained triaxial test. What would be the deviator stress at failure?
Consolidation test results are provided below, (Hint: C, or C = Ae / log(of/ai') ): 1.2 1.1 1- 0.9 Void ratio 0.8 0.7 0.6 0.5 0.4 1 10 100 1000 Vertical stress (kPa) (log scale) In some of the results an interval is provided. It ccan be possible to get a result between the given values Use the plot and find pre-consolidation pressure (past maximum vertical effective stress) pe' according to Casagrande's method. pe'= .kPa Seç. Find C, Seç. Find C.: Seç. If the tested soil sample is taken at a depth of 5m (ysat=18kN/m) where the groundwater table is located at the surface what is the Over Consolidation Ratio(OCR) (OCR= pclo vo) Seç. Initial height of the specimen is 22mm. What is the final height of the specimen when effective vertical stress is 650kPa? Hint: Use void ratio. Seç. (Result is in mm) What is the consolidation settlement of 2m thick clay layer if initial effective stress is 20kPa and final effective stress is 400kPa. Hint: Poc= Seç. [Ho/(1+einit)]x[C,log(p'/o'init) +…
Middle Tennessee State University School of Concrete and Construction Management 7. Using the soil profile shown below, determine the effective stress surface. Depth, feet 50 32 10 Medium sand y-110 pct Medium sand y-124 pct Stiff clay y 100 pct. Basalt rock
Q # 2. The following are the results of a consolidation test on a sample of a clayey soil. Pressure, o'(kN/m²) e 1.116 25 1.108 50 1.055 100 0.962 200 0.845 400 0.755 800 0.65 1600 0.658 800 0.675 400 0.685 200 Plot the e, log o' curve. b. Using Casagrande's method, determine the preconsolidation pressure. c. Calculate the compression index, Ce, and the ratio of Cy/Cc. a. Note: Use excel for calculation and drawing. Discuss the details in your own words.)
The table shows the results of a consolidated undrained (CU) test on a overconsolidated clay soil sample. Sample No Cell Pressure (kPa) Deviator stress at failure (kPa) Pore water pressure at failure (kPa) 1 15 20 10 2 30 25 15 For the given data, plot the effective stress Mohr's circles at failure. Estimate the effective shear strength parameters C' amd phi'.
|!;9 ELABORATE Try solving the following problem: Practice Problem: The following are the results of a consolidation test on a sample soil: a. Plot the e-log o' curve b. Using Casagrande's method, determine the preconsolidation pressure. c. Calculate the compression index, Cc e 1.1 1.085 1.055 1.01 0.94 0.79 0.63 Pressure, o' (ton /ft²) 0.25 0.50 1.00 2.00 4.00 8.00 16.00
A sample of dry sand is tested in direct shear. Theshear box holding the sample has a circular crosssection with a diameter of 50 mm. The normal(compressive) load imposed is 200 N. The sam-ple shears when the shear force is 130 N.(a) Determine the test normal stress and shearstress at failure.(b) Determine the angle of internal frictionfor this soil.(c) What is the probable condition of the testedsample (dense, loose, etc.)?