A frictional pile with a circular cross-section (diameter = D) is pushed into the soil %3! to a distance (L) and then it is subjected to an axial force (P) on its top end. Derive a formula to calculate the normal stress in any section x. P L f N/mm2

A frictional pile with a circular cross-section (diameter = D) is pushed into the soil %3! to a distance (L) and then it is subjected to an axial force (P) on its top end. Derive a formula to calculate the normal stress in any section x. P L f N/mm2

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter18: Pile Foundation

Section: Chapter Questions

Problem 18.13P

See similar textbooks

Related questions

Q: The wooden pile shown in the figure has a diameter of 90 mm and is subjected to a load of P = 60 kN.…

Q: 11.25 The section of a 4 X 4 group pile in a layered saturated clay is shown in Figure P11.25. The…

Q: A rectangular pile (0.67 x 0.5 m.) is driven in a clayey soil arrangement composed of two different…

Q: A frictional pile with a circular cross- section (diameter = D) is pushed into the soil to a…

Q: SIT V. A 0.3 square prestressed concrete pile is to be driven at a site where soil conditions are as…

A: Width of square pile = 0.3m

Q: 2. Consider a group of 450 mm x 450 mm reinforced concrete piles were driven into thick loose sand…

A: Given data, size of pile=450 mmx 450mm unit weight of loose sand soil,γ=16 kN/m3 Internel friction…

Q: The section of a sheet pile is shown in the figure. The coefficient of permeability of the soil is…

Q: A 16 in diameter, 55 ft long drilled displacement pile is to be constructed in the following soil…

A: Calculate the Toe Bearing capacity: The construction method for DD piles does not provide any…

Q: 10.8 Determine the sheet-pile section modulus for the braced cut described in Problem 10.7. Use o =…

A: Calculating the stability number for the given soil: SN=γHcWhere,γ=18 KN/m3c=30 KN/m2H=7 mSN=18×730…

Q: 2. Consider a pipe pile having an outside diameter of 500mm. The embedded length of the pile in…

A: Given, Pile diameter (D) = 500 mm or 0.5 m Embedded length (L) = 22 m

Q: Explain in your words the following : Pile Cap and Settlement of pile group in clay

A: Solution: In this, the settlement value is calculated by using the results that are obtained during…

Q: Refer to the pile shown in Figure P 9.1. Estimate the side resistance Qs bya. Using Eqs. (9.40)…

A: Coyle and Castello analyzed 24 large–scale field load tests of driven piles in sand. from the basis…

Q: A circular pile having a diameter of 0.44 m is 16.41 m long which is embedded in a layer of dense…

Q: A 600mm diameter pile is embedded in 3 layers of dense sand at a depth of 17m. Nq = 86. The…

Q: A rectangular pile (0.52 x 0.82 m) is driven in a clayey soil arrangement composed of two different…

Q: An excavation 5 m depth is supported by a sheet pile. The sheet pile is extended 3.2 m below the…

Q: A section of a 3 x 4 group pile in a layered soil is shown below in Fig. 2. The piles are square in…

Q: A circular pile having a diameter of 0.33 m is 14.21 m long which is embedded in a layer of dense…

Q: A driven closed-ended pile, circular in cross section, is show in below figure P10. Calculate the…

A: Since you have asked multiple question, we will solve the first question for you and with multiple…

Q: Given: Anchored sheet pile shown in figure. Required: For a factor of safety of (2) with respect to…

A: Given: The factor of safety with respect to passive resistance = 2 Load acting, P = 40 kPa γ=16…

Q: A 16 in diameter, 45 ft long drilled displacement pile is to be constructed in a silty sand with 30…

A: Given- d=16 inl=45ftd=20ftFOS=2.8

Q: Redo Problem 9.23 assuming that the water table coincides with the top of the fill and that…

A: Solution Calculate the total downward drag force or negative skin friction using the following…

Q: Given: Anchored sheet pile shown in figure. Required: For a factor of safety of (2) with respect to…

A: Given Factor of safety, FOS=2 Consider the free body diagram ;

Q: An anchored sheet pile is to support a mass of cohesionless soil up to a height of 6 m above ground…

A: Given- cohesionless soil height=6 mspacing of anchor=1 munit weight of soil=21 kN/m3angle of…

Q: A 300 mm diameter steel pipe pile with 10 mm wall thickness is to be driven to a depth of 15 m in a…

A: The workload of the building creates a vertical displacement of the soil surface, which is known as…

Q: SITUATION: A group of piles are arranged as shown in the figure. The piles are square in section…

Q: A 20-m-long concrete pile is shown in Figure P9.1. Estimate the ultimate point load Qp bya.…

A: Given:- ∅'2=42γ=18.5kN/m3Concrete pile=460 x 460mmLoose sand:-∅'1=30 degreeγ=18.6kN/m3 L=20m To…

Q: In Hiley’s formula for driven piles i.e. R=E/(s+0.5c), why is a coefficient of 0.5 applied for the…

A: Answer Hilley's Formula is based on the principle of energy of conservation.

Q: A 30 cm diameter concrete pile is driven into a homogeneous consolidated clay deposit (C = 40 kPa, a…

Q: A rectangular pile (0.88 x 0.68 m.) is driven in a clayey soil arrangement composed of two different…

Q: 20 m long bored concrete pile having a diameter of 350 mm is load tested, and the data are given…

A: Given:- L= 20 m d = 350 mm Econcrete = 25*1000 MN/m2 FS = 2.5 Max load = 1250 kN To find:- a)…

Q: A concrete pile 50 ft long having a cross section of 15 in. x 15 in. is fully embedded in a…

A: Precast concrete piles are used to build foundations for various structures in civil engineering and…

Q: A 300 mm diameter pile penetrates a deep deposit of soft clay 9 m deep. Compute the skin friction…

Q: Check the pile load of the Railroad Bridge of (hilla) for 4000 KN with pile diameter (1 m). The…

Q: Determine the diameter of 70 ft long pile driven in the medium dense sand (Shown in Figure). Design…

Q: 10 A pile of 40cm diameter and 18.5m -long passes through two layers and embedded in a third layer.…

Q: Determine the ultimate load capacity of a circular pile with diameter D = 20 cm installed in a…

Q: A 12 m long concrete pile is shown in Figure P11.1. Estimate the ultimate point load Q, by a.…

A: Using Vesic's method, shear failure surfaces are slightly more accurate, and the Terzaghi method is…

Q: A SINGLE VERTICAL FRICTION PILE OF DIAMETER 500 MM AND LENGTH 20 M IS SUBJECTED TO A VERTICAL…

A: Introduction: According to Terzaghi's theory, a foundation is said to be deep when the depth of the…

Q: 3. A 10.75 cm diameter steel pile is driven 25 m into stiff, insensitive clay. The pile has an…

A: Diameter of pile (d) = 10.75 cm = 0.1075 m Length of the pile (l) = 25 m Friction capacity (fs) =…

Q: 11.2 Refer to the pile shown in Figure P11.1. Estimate the side resistance Q, by a. Using Eqs.…

Q: A 0.45 m square prestressed concrete pile is to be driven at a site of 15 m long where soil…

A: Given, B = 0.45 m L = 15 m

Q: A 20-m-long concrete pile is shown in Figure P9.1. Estimate the ultimate point load Q, by a.…

Q: Q # 3. Calculate the bearing capacity and group efficiency of pile foundation installed in uniform…

Q: 1322.744

Q: Q1/ For the footing shown in Figure (1). estimate the pile group capacity. 0.6m dia bored pile Clay…

A: Ultimate load carrying capacity of pile: It is the maximum load which can be applied on pile without…

Q: Figure below shows a group pile in clay. Determine the consolidation settlement of the group. Use…

A: The given diagram is Shown below,

Q: n to the soil as shown below. Calcu

Q: 1) A 0.5 meter diameter (D) concrete pile is driven into a sand deposit with y moist = 18.7 kN/cubic…

A: Given information Diameter of pile Length of pile Critical depth of pile Water table is present at…

Concept explainers

Pricing Excavation and Backfill

Backfill, in construction, is the activity of returning the soil and gravel that are removed during building construction or using them again to toughen and support the foundation of the building or any other structural component.

Question

A frictional pile with a circular cross-section (diameter = D) is pushed into the soil
%3D
to a distance (L) and then it is subjected to an axial force (P) on its top end. Derive
a formula to calculate the normal stress in any section x.
P
xx
f N/mm2

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

A frictional pile with a circular cross- section (diameter = D) is pushed into the soil to a distance (L) and then it is %3D subjected to an axial force (P) on its top end. Derive a formula to calculate the normal stress in any section x. f N/mm2 D Cross section Maximum size for new files: 128MB Files
A frictional pile with a circular cross- section (diameter = D) is pushed into the soil to a distance (L) and then it is subjected to an axial force (P) on its top end. Derive a formula to calculate the normal stress in any section x. f N/mm2 Cross section
A frictional pile with a circular cross-section (diameter = D) is pushed into the soil to a distance (L) and then it is subjected to an axial force (P) on its top end. Derive a formula to calculate the normal stress in any section x. P L Cross section
A frictional pile with a circular cross-section (diameter D) is pushed into the soil to a distance (L) and then it is subjected to an axial force (P) on its top end. Derive a formula to calculate the normal stress in any section x. P fN, D Cross section
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
State the method to determine the N-value of soil and the normal N-value required for supporting friction piles
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
13.10 A static load test has been conducted on a 60-ft long, 16-inch square reinforced concrete pile then use this value and the remaining data to compute q,' and the average f, value in the soil. respectively. The data recorded at failure was as follows: Load at head = 139,220 lb, settle- ment at head = 1.211 in, settlement of telltale rod A = 1.166 in, settlement of telltale rod B = 1.141 in. Use the data from tell tale rod A to compute the modulus of elasticity of the pile, which has been driven from a barge through 20 ft of water, then 31 ft into the underlying soil. Telltale rods A and B have been embedded at points 30 ft and 59 ft from the top of the pile, , Telltale rod A is anchored only 1 ft from the mud line (the top of the soil). There is es- ially no side-friction resistance between the top of the pile and this point, so the force at a depth of 30 ft is essentially the same as that at the top of the pile.
A group pile in clay is shown in the figure below. Determine the maximum vertical load Qg be applied if the allowable consolidation settlement of the pile group is set to be 0.17 m. Use the 2:1 stress distribution method to estimate the average effective stress in the clay layer. can Qg 3 m Sand Groundwater y = 15.72 kN/m3 table Sand 3 m Ysat = 18.55 kN/m3 2.75 m X 2.75 m Group plan Normally consolidated clay Ysat = 19.18 kN/m³ 15 m 18 m eo = 1 C. = 0,8 Normally consolidated clay Ysat = 19 kN/m3 eo = 0.25, C. =1 5 m Rock
A 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,
A 50 cm diameter 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) 3.0 4.5 6.0 7.5 9.0 10.5 12.0 SPT (N55) 6 12 12 20 24 35 39 1.5 4 If the skin resistance is equal to (ts=2 x (average Nss along the pile shaft)} kPa. Compute the number of piles that needed to support a total load of 4400 KN with factor of safety (2.5).
A rock storage pile is being designed for a mine in West Virginia. The pile is linedwith reinforced GCL overlain by a 1.5 mm thick HDPE geomembrane. A heavy nonwoven geotextile is placed on top of the geomembrane. Because the rock is porous(K = 10-2cm/s), it is used as the main LCS stone and no additional leachate collectionstone is being installed. Specify the base slope required to keep the head below 25cm if the design storm is 0.8 cm rain/day and the pipe-to-pipe lateral spacing is 60 mIs this rock a reasonable material to replace the LCS stone?