Estimate the pile length required to carry the 670 kN axial load for the pile-soil system shown in the figure below. The 460-mm pipe is to be filled with concrete after driving. Safety factor = 3.0 L-Method. diameter 42- 670 kN Soft clay - c=30 kPa 7= 18.5 kN/m³ Medium stiff clay c = 55 kPa y=19.81 kN/m³ 460 mm J L₂ .22. factor 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 35 50 as 100 E Pu = Pp + Σ Psi, u 150 200 250 300 kPa cohesion Cas

Estimate the pile length required to carry the 670 kN axial load for the pile-soil system shown in the figure below. The 460-mm pipe is to be filled with concrete after driving. Safety factor = 3.0 L-Method. diameter 42- 670 kN Soft clay - c=30 kPa 7= 18.5 kN/m³ Medium stiff clay c = 55 kPa y=19.81 kN/m³ 460 mm J L₂ .22. factor 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 35 50 as 100 E Pu = Pp + Σ Psi, u 150 200 250 300 kPa cohesion Cas

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Aprecast concrete pile, 305 x 305mm in size is proposed to be installed at a site where two layers of sand exist. The upper layer is 3.7 m thick medium dense sand with y= 16 kN/m² and 6 35º The lower layer is a thick deposit of dense sand with y 19 kN/m² and 6 = 37° a) Differentiate between bored and driven piles in processes to the surrounding soil. terms of the effects of their installation
Calculate the pile's allowable bearing load using the corrected SPT values at various depths given in the figure below (factor of safety is 1.5). 10m D=1m 2m 2m 2m 2m 2m SPT1=14. SPT2=16 SPT3=18. SPT4=18 -- SPT5=20. Corrected SPT Values
This question
Determine load carrying capacity of pile without considering critical depth concept. Diameter of pile 0.4 m.Ng =132 for o = 40° to m y 4.b Cot-opf "loose Sand K=1 = 21-15 From. 8a 19 Cu 20k Demse Sund 2 20 $=40° K=2 -I 30°
Q3) For the pile-soil system shown in Fig. (3), estimate the required pile length to carry an ultimate vertical load of 2000 kN. Use Meyerhof's method in computing the end bearing resistance and the a-method for the skin resistance. Ans.: L= 20.21 m Pu = 2000 kN G.L. XX Sand Y = 18.1 kN/m3 $ = 30° k = 0.7 5 m W.T. Dense Sand Ysat = 21 kN/m3 $ = 35° k = 0.82 Concrete Pile + + d = 0.3 m Fig. (3)
A 16 in diameter, 75 ft long drilled displacement pile is made of grout with f'c = 5,000 lb/in2. A steel ratio of 0.04 is to be used in the upper 30 ft, and a steel ratio of 0.001 for the remainder of the pile. Compute the modulus of elasticity for the upper and lower portions of this pile.
A 40 cm diameter concrete pile, is driven to a depth of 15 m in a deep deposit of clay having unconfined compressive strength of 80 kN/m². The design load carrying capacity of pile will be [Assume α = 0.8 and FOS = 3] - (a) 648.42 kN (c) 432.28 KN ;) (b) 216.14 kN (d) 1296.84 kN
Problem 2 6m m 3m 0.75m 0.75m sharon 0.75m 0.75m C=42.81 kpe 0.85 C-57.40 kpa a=0.75 C-95.76 kpa a=0.5 No = 8 A nine-pile group composed of 0.30m diameter pipe piles is embedded 15m in clay soil with conditions indicated by the sketch. Determine the following: a. Capacity if piles acting individually b. Total capacity if piles act as a group c. Design load if factor of safety is 3.
20 A rectangular pile (0.75 x 0.93 m.) is driven in a clayey soil arrangement composed of two different layers. First layer has a height of 5 m., cohesion of 53 kPa, friction factor of 0.88. Second layer has a height of 8 m., cohesion of 78 kPa, and friction factor of 0.84. Compute the allowable load that the pile can carry if the factor of safety is 2.17. Round off to two decimal places.
A rectangular pile (0.85 x 0.77) is driven in clayey soil arrangement composed of two different layers. First laye has a height of 9 m., cohesion of 59 kPA, friction factor of 0.84. Second Layer has a height of 5m., cohesion of 74 kPa, and friction factor of 0.87. Compute the allowable load that the pile can carry if the factor safety is 2.37. Use stored value. Answer to 5 decimal places.
i need the answer quickly
1) A 0.5 meter diameter (D) concrete pile is driven into a sand deposit with y moist = 18.7 kN/cubic meter and o= 31 degrees. The water table is very deep. a. Assume Nq = 68.2. b. Assume K= 0.727 (Effective Earth Pressure Coefficient) c. Assume ô (friction of concrete surface to sand) = 24.8 (0.8 Tan 4) ESTIMATE PILE SHAFT ULTIMATE CAPACITY ASSUMING PILE IS 40 METERS LONG USING MEYERHOF'S METHOD. Assume critical depth is 15D. Hint: pile perimeter is 1.571 M