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 18, Problem 18.18P
To determine
Find the capacity
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QUESTION 3:
Three forces act on a pile as shown. If the resultant of the three forces is equal to 500 N and is directed
vertically, what is the magnitude and direction of F3.
F2= 100 N
F3
F,= 75 N
35°
40°
Pile
(Answer: F3=365 N, E=76.8°)
Problem 2. A concrete pile 16 in. × 16 in. in cross section is shown in Figure below. Calculate the
allowable capacity, Qall, of the pile using the a method. Assume a factor of safety equal to 3.
20 ft
40 ft
16 in.
Water
table
Silty clay
Y = 118 lb/ft³
Cu = 700 lb/ft²
Silty clay
Ysat = 122.4 lb/ft³
Cu = 1500 lb/ft²
13) A cylindrical pile of diameter 0.3 m is driven to a depth of 15 m in to an NC clay as
shown in the figure below. Using the factor of safety of 3, the allowable load capacity of the
pile using the a-method is most nearly:
a. 426 kN
b. 178 kN
c. 330 kN
d. 105 kN
10 m
5 m
Gy=25k9x
7-15998
C₂#100 kPa
p=0
1*17k9*
Chapter 18 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
Ch. 18 - State whether the following are true or false. a....Ch. 18 - A 1500 kN load was applied on two 20 m long and...Ch. 18 - A 500 mm diameter and 20 m long concrete pile is...Ch. 18 - A 400-mm diameter and 15 m long concrete pile is...Ch. 18 - A 400 mm 400 mm square precast concrete pile of...Ch. 18 - Prob. 18.6PCh. 18 - Prob. 18.7PCh. 18 - Prob. 18.8PCh. 18 - Determine the maximum load that can be allowed on...Ch. 18 - Prob. 18.10P
Ch. 18 - Redo Problem 18.10 using the method for...Ch. 18 - Determine the maximum load that can be allowed on...Ch. 18 - Prob. 18.13PCh. 18 - A steel pile (H-section; HP 360 1.491; see Table...Ch. 18 - A concrete pile is 18 m long and has a cross...Ch. 18 - Prob. 18.16PCh. 18 - Prob. 18.17PCh. 18 - Prob. 18.18PCh. 18 - Prob. 18.19PCh. 18 - Figure 18.26a shows a pile. Let L = 20 m, D = 450...Ch. 18 - Refer to Figure 18.26b. Let L = 15.24 m, fill =...Ch. 18 - Prob. 18.22PCh. 18 - Figure 18.39 shows a 3 5 pile group consisting of...Ch. 18 - The section of a 4 4 group pile in a layered...Ch. 18 - Prob. 18.25PCh. 18 - Prob. 18.26CTP
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- Refer to the pile shown in Figure P9.1. Estimate the side resistance Qs by Using Eqs. (9.40) through (9.42). Use K = 1.5 and Coyle and Castello’s method [Eq. (9.44)]arrow_forwardA 20 m long concrete pile is shown in Figure P12.2. Estimate the ultimate point load Qp by a. Meyerhofs method b. Vesics method c. Coyle and Castellos method Use m = 600 in Eq. (12.28).arrow_forwardnote: please expert answer only the letter e in the problemarrow_forward
- svarrow_forwardnote: please expert answer only the letter d in the problemarrow_forwardThe section of a 3 x 4 group pile in a layered saturated clay is shown in the figure below. The piles are square in cross section (356 mm x 356 mm). The center-to-center spacing, d, of the piles is 889 mm. Determine the allowable load-bearing capacity of the pile group. Use FS = 4. Note that the groundwater table coincides with the ground surface.arrow_forward
- Show a detailed step by step solutionarrow_forward1%9E lI. bartleby.com/solution-answ = bartleby E Q&A Sign in Engineering / Civil Engineering / Prin... / A 20 m long concre... : A 20 m long concrete pile is shown in F... A 20 m long concrete pile is shown in Figure P12.2. Estimate the ultimate point load Q, by a. Meyerhof's method b. Vesic's method c. Coyle and Castello's method Use m= 600 in Eq. (12.28). Concrete pile 460 mm x 460 mm Loose sand d - 30 y- 18.6 kN/m 20 m Dense sand d2- 42 y- 18.5 kN/m العربية الإنجليزية IIarrow_forwardFind the maximum pile capacity for the pile group shown in figure below. If My = 500 kN.m and V = 7200 kN. 'My X=1.4 - x=1.4- y=1.2 y=1.2arrow_forward
- Q1: Determine the allowable load capacity for the driven pile of 0.6 m diameter embedded in a layered soil as shown in the figure below, use F.S 2.0 , K, = 1.5 and tand =0.5? ELEV. 110 N.C.C W.T ELEV. 108 Cu =70 kPa Y = 17 kN/m3 a = 1, yw = 10 kN/m? ELEV. 102 O.C.C, Cu 180 kPa, y = 20 kN/m³ a = 0.45 ELEV. 98 Sandy Layer Yt = 19 kN/m3 Ø = 32° Nq = 23.18 ELEV. 90arrow_forwardage Please round to the nearest Hundredth (i.e., 0.01). No Comma! A square pile, 21 m long is driven into a homogeneous sand layer. The pile's width (diameter) is 0.4 m. The standard penetration resistance near the vicinity of the pile is 29. Use FS = 2 and Briaud & Tucker method. Point force, Qp = Skin friction force, Qs = Q A Ultimate bearing force, Qu = Allowable bearing force, Qa = F1 2 W S F2 kN #3 20 F3 E D kN S4 kN $ KN 000 000, F4 R F % 5 F5 T MacBook Air A 6 G Y ✓ & 7 H U ► 11 * 8 J F8 Next page 1 9 Karrow_forwardA 30 m long concrete pile is 305 mm times 350 mm in cross section and is fully embedded in a sand deposit. Using Broms' method, calculate the allowable lateral load Q_g (take FS = 2) at the ground level. Assume the pile is flexible and restrained. Let the soil unit weight, gamma = 16 kN/m^3, the soil friction angle, Phi' = 30^degree; and the yield stress of the pile material, F_y = 21 MPa,arrow_forward
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