Principles of Foundation Engineering (MindTap Course List)
8th Edition
ISBN: 9781305081550
Author: Braja M. Das
Publisher: Cengage Learning
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Chapter 9 Solutions
Principles of Foundation Engineering (MindTap Course List)
Ch. 9 - A 20 m long concrete pile is shown in Figure...Ch. 9 - Refer to the pile shown in Figure P9.1. Estimate...Ch. 9 - Prob. 9.3PCh. 9 - A driven closed-ended pile, circular in cross...Ch. 9 - Prob. 9.5PCh. 9 - Prob. 9.6PCh. 9 - Prob. 9.7PCh. 9 - Prob. 9.8PCh. 9 - Prob. 9.9PCh. 9 - A concrete pile 16 in. 16 in. in cross section is...
Ch. 9 - Prob. 9.11PCh. 9 - Solve Problem 12.13 using Eqs. (12.59) and...Ch. 9 - Prob. 9.13PCh. 9 - Prob. 9.14PCh. 9 - A steel pile (H-section; HP 310 125; see Table...Ch. 9 - A concrete pile is 20 m long and has a cross...Ch. 9 - Prob. 9.17PCh. 9 - Prob. 9.18PCh. 9 - Solve Problem 12.23 using the method of Broms....Ch. 9 - Prob. 9.20PCh. 9 - Solve Problem 12.25 using the modified EN formula....Ch. 9 - Solve Problem 12.25 using the modified Danish...Ch. 9 - Figure 12.49a shows a pile. Let L = 15 m, D (pile...Ch. 9 - Redo Problem 12.30 assuming that the water table...Ch. 9 - Refer to Figure 12.49b. Let L = 18 m, fill = 17...Ch. 9 - A concrete pile measuring 16 in. × 16 in. in cross...Ch. 9 - The plan of a group pile is shown in Figure...Ch. 9 - Prob. 9.28PCh. 9 - The section of a 4 × 4 group pile in a layered...Ch. 9 - Prob. 9.30P
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- Refer to Figure 18.26b. Let L = 15.24 m, fill = 17.29 kN/m3, sat(clay) = 19.49 kN/m3, clay = 20, Hf = 3.05 m, and D = 0.406 m. The water table coincides with the top of the clay layer. Determine the total downward drag on the pile. Assume that = 0.6 clay. FIG. 18.26 Negative skin frictionarrow_forwardRefer to Figure 18.13. Given L1 = 1.5 m, L2 = 3 m; for the sand, =33, =16.5kN/m3, sat=19.0kN/m3; and, for the clay, c=50kN/m2, =0, sat=20kN/m3. Determine the depth of sheet pile required, allowing for a 50% increase from the theoretical estimate.arrow_forwardPlease solve fully. Thank youarrow_forward
- 2.A cylindrical sample with a circular cross section is given a load as shown in Figure 2 with the following data: P= 50 ton, Di= 15 cm, Li= 30 cm, AD/2= 0.25 mm, AL/2= 2 mm, and g= 10m/s^2. P Kondisi awal sampel AL/2 Kondisi akhir sampel Setelah pembebanan AD/2 AD/2 AL/2 D, Figure 2 b. Calculate the engineering stress (in N/mm2 unit), vertical engineering strain, lateral engineering strain, and Poisson's ratio.arrow_forwardThe 20ft high clay fill shown below is proposed to be constructed over a layer of soft clay. A 5ft gravel layer is placed above the soft clay in order to facilitate drainage, assume it has the same unit weight as dense gravel. Answer the following: What is the magnitude of the settlement one year after the construction begins? What is the effective stress at Point A one year after construction begins if Point A is 25 feet below the GWT?arrow_forwardSolve and explain mention answer alsoarrow_forward
- شملarrow_forwardTake o, = 580 kPa (Figure 1) Express your answer to three significant figures and include the appropriate units. HÀ ? o, = Value Units Submit Request Answer Figure Part B Determine the shear stress acting on the inclined plane AB. Express your answer to three significant figures and include the appropriate units. В HA ? 30° Value Units Aarrow_forwardQ # 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.)arrow_forward
- 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) +…arrow_forward11 The following are the results of a consolidation test on a sample of a clayey soil. 11.3 Pressure, o (kN/m') 1.116 25 1.108 1.055 50 100 200 0.962 0.845 400 800 1600 0.755 11 0.65 80 0.658 0.675 400 0.685 200 a. Plot the e-log o' curve h. Using Casagrande's method, determine the preconsolidation pressure. c. Calculate the compression index, C, and the ratio of CJC_arrow_forwardThis is not graded question. Plz, solve what you have been asked in this question. Geotechnical Engineering-2arrow_forward
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