A concrete pile 20 m long and having a cross section of 0.38m x 0.38m is fully embedded in sand, for which γ = 17 kN/m3 and φ’ = 25o. Calculate: a) The ultimate point load, Qp, by Meyerhof’s method b) The total frictional resistance for K=1.4 and δ= 0.7φ.  c) The allowable pile capacity for a FS = 3.

Q: A group of 16 piles of 10 m length and 0.5 m diameter is installed in a 10 m thick stiff clay layer…

A: Given- 16 piles of 10 m length and 0.5 diameter 10 m thick stiff clay layer Adhesion factor=0.4…

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

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A:

Q: 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…

A: Given; Diameter of pile (d) =0.3 m Depth of the pile (l) = 15 m Factor of safety (Fs) = 3

Q: What is the design capacity of a square pile 0.3 x 0.3 m if it has a skin fiction of 660 KN. Assume…

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Q: A pile of diameter 457 mm is fully embedded in a clay strata as shown in figure. C- 25 kN/m y= 16…

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Q: What is the pile bearing capacity if the Downward drag = 0.6 psi, h1 = 30', h2 = 4', Frictional…

A: Downward drag = 0.6 psi, Height , h1 = 30',Height , h2 = 4',Frictional stress = 3.5psiAxial stress =…

Q: A 30-m-long concrete pile is 305 mm x 305 mm in cross section and is fully embedded in a sand…

A: Solution; Find the moment of inertia of the pile using relation; Ip=B412 Here the moment of inertia…

Q: The pile group shown consists of 12 friction piles each 0.3 m diameter. Each pile is driven clay…

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

A:

Q: Calculate the allowable axial load for the driven pile of ( 0.5 m) dia. And ( 20 m) depth, in a…

A: Solution: “Since you have asked multiple questions, we will solve the first question for you. If you…

Q: 4. Calculate the lateral force of a wall of height 20 ft with a sand backfill as shown in figure.2.…

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Q: 4. 12 in. 12 in. The simply-supported beam has a “t-shaped” cross- section and is symmetrical about…

A:

Q: A 0.36-m square prestressed concrete pile is to be driven in a clayey soil. The design capacity of…

A: Given; 0.36m square prestressed concrete pile. Design capacity of the pile =360 kN, factor of safety…

Q: A nine-pile group composed of 0.30 m diameter pipe piles is embedded 15 m in clay soil with…

A: Data given: Diameter of the pile = 0.3 m Total depth D = 15 m Asked: Total capacity of pile act…

Q: Steel pipe piles are to be used as friction piles (i.e., pile capacity is from shaft resistance…

A: The ultimate bearing capacity for pile foundation is given by,

Q: Consider a drilled, rough concrete pile with diameter B = 1m and length D = 10m embedded in a site…

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Q: A steel pipe pile of 61 cm outside diameter with a wall thickness of 2.5 cm is driven into loose…

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Q: FDE 016: A prestressed concrete pile, 400 mm x 400 mm in cross-section, is to be driven in a clayey…

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Q: A single vertical friction pile of diameter 500 mm and length 20 m is subjected to a vertical…

A: Given data- A single vertical friction pile- Diameter d=500 mm, Length L=20 m Angle of internal…

Q: Design a friction pile group to carry a load of 3000 kN including the weight of the pile cap at a…

A:

Q: Estimate the pile length required to carry the 670 kN axial load for the pile-soil system shown in…

A: Axial load, Pa = 670 kNPile diameter, D = 460 mmSafety factor = 3.0

Q: A closed-end steel pipe pile is driven into thick saturated clay strata. The diameter and length of…

A: For closed-end steel pipeDiameter of pile: d = 0.4 mLength of Pile, L=32 mTo find

Q: A prestressed concrete pile 400 mm x 400 mm in cross-section and 20 m long is driven in clayey soil…

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Q: Calculate the pile's allowable bearing load using the corrected SPT values at various depths given…

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Q: A prestressed concrete pile 300 mm x 300 mm in cross-section and 10 m long is driven in clayey soil…

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Q: A 40 cm driven concrete pile driven through layered soil shown in figure below. Estimate the…

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Q: Clay A precast pile having a diameter of 400 mm is driven through a 4.5 m thick soft clay layer into…

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Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.