In a 16 (4 x4) piles group, the pile diameter is 0.4 m and center to center spacing of piles in the square groupis 1.5 m. If C. = 50 kN/m², with neglecting the bearing at the tip of the pile, determine whether the failurewould occur as block failure or when the piles act individually. The piles are 12 m long. Take α= 0.7 forshear mobilization around each pile. Also determine the safe load on this group assuming the factor ofsafety -2.5.

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Answered: In a 16 (4 x4) piles group, the pile…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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The following pile with a diameter of 600mm is driven into clay strata as provided below: Calculate the end bearing capacity if Nc = 8.5 Determine the skin friction capacity of the pile Find the allowable load if the factor of safety is 3.0 Please answer this asap. For upvote. Thank you
2. Two cylindrical steel piles (P1 and P2) are to be driven along the shore. Two total stations were set up at TS3 and TS4 respectively to guide pile driving of the two piles. TS1 and TS2 were observed from both instrument and the following data were recorded (refer from the figure below). The distances from both instrument to the pile locations were also measured. a. Determine the coordinates of TS3. b. Determine the coordinates of TS4. c. Determine the coordinates of P1 d. Determine the bearing from P1toP2. N=8415.591 E=3414.175 1975.655m ATS3 39°11'59", 1451 931m 3005.480m. 22 N=6523.709 1677.062m 54 2247.900m E=3021.832 2094.66 1m 45°20'18" 1994.379m 2702.590m
A concrete pile is 15 m long and has 406 mm diameter circular cross section. The pile is fully embedded in sand, for which the unit weight '( = 18 kN/m3 and the frictional angle 8 = 30°. i) Calculate the ultimate point load Qp ii) Determine the total frictional resistance Qs iii) Determine the total ultimate load ofthe pile.
A concrete pile group 3x3 with spacing of 0.6m is used to support a wind turbine in a sand deposit. Individual pile diameter = 0.3 m and length=6m. A. If the allowable (working) lateral capacity for a single pile is 95 kN, what is the maximum allowable lateral deflection for each pile? B. Is the lateral deflection acceptable? Explain your answer in 1-2 sentences.
Q2: The plan of a group piles is shown below. Assume that the piles are embedded in a saturated homogeneous clay having a 7sa= 19.24 kN/m, C=41.2 kN/m? .Given: diameter of piles (D) = 305 mm, center-to-center spacing of piles 762 mm, and length of piles = 13.7 m. Find the allowable load-carrying capacity of the pile group. Use FS = 3. P
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. 90
A pile with a diameter of 40cm and a length of 15m is intended for the sandy soil. If the standard tube test around the pile is homogeneous with N = 30, find the tip support and friction support of the pile. ans Qs=1507.2kn Qp=1130.4kn
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.
Check the total settlement of a group of pile as shown in Figure 1. The total allowable settlement is set not exceed 3% of the pile diameter and the overconsolidated ratio (OCR) of the clay is more than 1. The groundwater table is located 15m beneath the ground level. The diameter of the pile, b is 0.5m and the spacing between piles, s is 2m.The pile group is subjected to foundation load of 5425kN. The laboratory testing data for the soil samples taken are as follows: At 5m, eo = 0.55, Cc = 0.32, C; = 0.09, o'o = 150kN/m? At 10m, eo = 0.55, Cc = 0.32, Cs = 0.09, o'o = 225kN/m2 %3D At 12m, eo = 0.55, Cc = 0.32, C; = 0.09, o'o = 300KN/m2 %3D 7m 5m Clay 3 10m Unit weight = 18KN/m %3D Friction angle = 0 degree 2 Cohesion = 100KN/m
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