A nine pile group consists of 0.30m diameter friction concrete piles 12m long. The piles are driven into clay having an unconfined compressive strength of 180kPa and the unit weight of clay is 18kN/m3. The spacing of piles is 0.75m center to center. Assuming a bearing capacity factor of Nc = 9, a= 1.0. Which of the following most nearly gives the minimum pile spacing in order to achieve 100% efficiency?

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

A: Please refer the attached image for complete solution. THANK YOU.

Q: to

A: no. of piles = 9 dia of pile  ,  d = 28 cm = 0.28 m center to center spacing ,s =1.11m length of…

Q: A circular pile of diameter 0.6 m and length 8 m was constructed in a cohesive soil stratum having…

A: we have to determine the allowable load

Q: diameter and 10 m deep is placed in purely cohesive soil. If the cohesion the soil is 4t/m² and…

A: Capacity of Pile = End Bearing + Skin Friction  Diameter of pile = 0.5m Length of pile = 10 m…

Q: Compute the ultimate load bearing capacity of the group of piles considering the piles acts Individu…

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Q: Nine-pile group consist of 0.27-meter-diameter friction concrete piles 23 m long arranged in 3 rows…

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Q: A group of 9 piles of 33 cm diameter is arranged in a square configuration with a center-to-center…

A: Please refer the attached image for complete solution. THANKYOU !

Q: A single pile of diameter 50 cm and length 10 m is driven into clay having unconfined compressive…

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Q: The length of the pile required for the above design load

A: This question is from geotechnical engineering

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: A rectangular pile (0.91 x 0.54 m.) is driven in a clayey soil arrangement composed of two different…

A: To determine the allowable load that the pile can carry.   The bearing capacity of a pile is…

Q: A 0.5 x 0.5m square concrete pile is to be driven in a homogeneous clayey soil having undrained…

A: given- 0.5 m×0.5 m,Cu=50 kPa,g=18 kN/m3,design capacity=500 kN,α=0.75.FOS=2.

Q: A concrete pile with 20 m embedded length having 50 cm diameter is driven into a homogeneous…

A: Length of the pile, L = 20mDiameter of the pile, D = 0.5mCohesion, Cu = 30kN/m2Adhesion factor,  =…

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: A 5x 5 group piles of 0.4 m diameter displacement piles are to be constructed. The spacing between…

A: Solution: Given Data: d=0.4mthickness of pile, z=1.2 mLength of pile, L=20 mSpacing of pile=3…

Q: rectangular pile (0.54 x 0.63) is driven in clayey soil arrangement composed of two different…

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Q: group of 9 driven piles, 12 m long and 300 mm in diameter is to be arranged in a square pattern in…

A:

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 square pile group of 9 piles passes through a recently filled up material of 3.5 m depth. The…

A: A square pile group of 9 piles,Depth of pile = 9 m,Depth of soil fill =3.5 m,Diameter of the pile=30…

Q: Determine the ultimate bearing load of the pile using Tomlinson for a 12.5-m closed-end steel pipe…

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Q: Square concrete piles are arranged in 5 row by 5 column formation beneath the pile cap. These piles…

A: The efficiency of the pile group is defined as the ratio of the average capacity of a pile in the…

Q: A group of piles as shown on the figure has a cross section of 0.30 m x 0.30 m. It has a total…

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

A:

Q: 8 Nine-pile group consist of 0.28-meter-diameter friction concrete piles 24 m long arranged in 3…

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Q: Please only solve d

A: The objective of this question is to calculate the group capacity of the pile group, given that the…

Q: A group of 9 piles of 27 cm diameter is arranged in a square configuration with a center-to-center…

A: Given data in question  Cohesion Adhesion factor Square pile  Spacing Length To find out  Ultimate…

Q: pile group consist of 0.35-meter-diameter friction concrete piles 22 m long arranged in 3 rows by 3…

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Q: A group of 9 piles of 31 cm diameter is arranged in a square configuration with a center-to-center…

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Q: The section of 4*5 group pipe pile, each 15 m in long, embedded in clay layer, the diameter of pile…

A: The given data is: The length of piles=15 m Diameter of pile=403 mm=0.403 m C/C spacing=700 mm=0.7 m…

Q: A square pile of section 30 cm x 30 cm and length 10 m penetrates a deposit of clay having c = 5…

A: We have to calculate the load

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: a group of 9 piles of 29 cm diameter is arranged in a square configuration with a center-to-center…

A: Total number of piles = 9Diameter of pile =29cm =0.29mCentre to centre spacing of piles, S…

Q: A group of 9 piles of 33 cm diameter is arranged in a square configuration with a center-to-center…

A:

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

A:

Q: Figure below shows a precast circular pile is driven into two clay stratums to a depth of 14 m. the…

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Q: A square pile group of 9 piles passes through a recently filled up material of 3.5 m depth. The…

A: A square pile group of 9 piles,Depth of pile = 9 m,Depth of soil fill =3.5 m,Diameter of the pile=30…

Q: A rectangular pile (0.77 x 0.72 m) is driven in a clayey soil arrangement composed of two different…

A: Given  Pile dimensions : 0.77m x 0.72m Factor of safety : 2  Figure corresponds to given data: Skin…

Q: In a 16 (4 x4) piles group, the pile diameter is 0.4 m and center to center spacing of piles in the…

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Q: A nine pile group consists of 0.30m diameter friction concrete piles 12m long. The piles are driven…

A: Given data in question  Length Diameter  Unconfined compressive strength Center to Center spacing…

Q: A group of driven piles are to be built in layered soils as shown in the figure below. Please…

A: For ϕ = 35o ,   Nq = 33.5 Assuming pile to be concrete, and for loose sand {as γ=120psf}; k = 1…

Q: Determine the allowable load capacity of the 0.4 m diameter pile shown in Figure 4. The fill is new…

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Q: Q Y- 17.5 kN/m Cohesion = 28 kPa a - 0.95 Y= 17.8 kN/m w = 25% & Gs = 2.6 Cohesion = 35 kPa a = 0.85…

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Q: Nine-pile group consist of 0.36-meter-diameter friction concrete piles 20 m long arranged in 3 rows…

A: Given data in question  Friction piles Length Diameter  Adhesion factor FOS To find out  Allowable…

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.