12.2A 20 m long concrete pile is shown in Figure P12.2.Estimate the ultimate point load Q, bya. Meyerhof's methodb. Vesic's methodc. Coyle and Castello's methodUse m = 600 in Eq. (12.28).Concrete pile460 mm x 460 mm20 mLoose sand+1-30°y- 18.6 kN/m³FIGURE P 12.2Dense sand2-42°y 18.5 kN/m³

Required: Ultimate Point Load, Qp a. Meyerhof's Method b. Vesic's Method (m=600) c. Coyle and…

Answered: 12.2 A 20 m long concrete pile is shown…

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter12: Pile Foundations

Section: Chapter Questions

Problem 12.2P: A 20 m long concrete pile is shown in Figure P12.2. Estimate the ultimate point load Qp by a....

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A 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).
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 friction
PILE FOUNDATIONS Example: 32/2 A reinforced concrete pile 30ft long and 15 inches diameter is embedded in a saturated clay of very stiff consistency. Laboratory tests on samples of undisturbed soil gave an average undrained cohesive strength c 2500 lb/ft². Determine the net pullout capacity and the allowable pullout load with F, =3. Take, alpha = 0.37
1. Refer the Fig. 1. Estimate the side resistance Qs by a. Meyerhof's method. K= 1.5 and d'= 0.6 Ø Coyle and Castello's method b. Concrete pile 460 mm x 450 mm I Loose sand 20 m 0', -30° Y=18.6 kN/m³ TE Dense sand 0₂-42* Y-18 6 kN/m² Fig. 1
A 450 mm x 450 mm concrete pile 20.0 m long is driven into sand deposits with y = 17 kN/m³ and = 30°. Find the ultimate load i.e. point load Qp by Meyerhoff's method and Janbu method. Meyerhoff's N = 55, Atmospheric pressure = 100 kN/m², Janbu's N = 18.4
A 20-m-long concrete pile is shown in Figure P9.1. Estimate the ultimate point load Qp bya. Meyerhof’s methodb. Vesic’s methodc. Coyle and Castello’s methodUse m = 600 in Eq. (9.26).
A 50 cm square precast pile is driven by 9 m into a sandy soil. The standard penetration test results, prformed on this ground, are given in the table below: Depth below ground surface (m) SPT (Nss) 1.5 3.0 4.5 4 6 6.0 12 12 20 24 35 39 If the skin resistance is equal to {T, = 2 x (average Nss along the pile shaft)) kPa. Compute the factor of safety available, if 1100 kN of compressive load is applied on this pile. 7.5 9.0 10.5 12.0
12.2 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 di = 30° y = 18.6 kN/m3 20 m F Dense sand $2 = 42° y = 18.5 kN/m
Refer to the pile shown in Figure P 9.1. Estimate the side resistance Qs bya. Using Eqs. (9.40) through (9.42). Use K = 1.5 and ẟ' = 0.6 Φ'b. Coyle and Castello’s method [Eq. (9.44)]
Estimate the side resistance Qs by: a. Using Eqs. (9.40) through (9.42). Use K = 1.5 and 8 = 0.60 b. Coyle and Castello's method [Eq. (9.44)] 20 m Concrete pile 460 mm x 460 mm Loose sand $₁ = 30° y = 18.6 kN/m³ Dense sand $2=36 y = 18.5 kN/m³
Concrete pile 356mm x 356mm Loose sand 1-30° 7-17.5kN/m 12 m Dense sand =42 0 y-18.5 kN/m A square concrete pile12m long is shown in Figure. Estimate the following: Ultimate shaft carrying capacity by Meyerhof's Method 471 kN 784.6 kN O 319.5kN 576.5 kN O 141.7 kN
A 20-m-long concrete pile is shown in Figure P9.1. 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. (9.26). 9.1 Concrete pile 460 mm x 460 mm Loose sand di = 30° y = 18.6 kN/m3 20 m Dense sand d'2 = 42° y = 18.5 kN/m3 Figure P9.1

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