A 28m free-head group piles (7 * 7) with diameter of 320mm and a spacing of 1200mm each. The piles were constructed in a saturated clay layer with cohesion of 90KN / (m ^ 2) and T = 20KN / (m ^ 3)

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

Q: Three cast-in-place piles with a diameter of 480mm are installed under a certain platform, the pile…

A: As given in the question, a pile is casted in three layers of soil. The shear resistance of each…

Q: 3.8 The soil profi le at a site for an offshore structure is  shown in Figure P13.8. The height of…

A: Given:- The height of the pile above the sand surface = 15 m  The diameter of the pile = 1.25 m  The…

Q: For the group piles shown in fig.(4) given: m=4, n=3 , B=305mm, s=1220mm, and depth D=15m. the piles…

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Q: (i) What are the components of elastic settlement of piles? Name two parameters that affect the…

A: Note: Hi! Thank you for the question As per the honour code, We’ll answer the first question since…

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: Nine-pile group consist of 0.36-meter-diameter friction concrete piles 22 m long arranged in 3 rows…

A: Determine the allowable block capacity (in kN) of the piile group

Q: n 19 m into the soil profile shown in figure. Compute the net ultimate toe-bearing capacity.

A: The expression for Young modulus is given as E=βoOCR+β1N60 From table 4.7, 'β factor for soil' for…

Q: A 25 m deep bored pile has a shaft of 1 m diameter and enlarged base of 2.5 m diameter in the lower…

A: Length of bored pipe = 25m Shaft Diameter = 1m  Diameter of enlarged portion = 2.5 m  Area of…

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: DL = 1200 KN LL = 700 KN Pile capacity = 250 kN c-c spacing of piles = 1.1 m edge distance = 0.5 m…

A: Given:- f'c=27.5MPa fy=275MPa 25mm dimater bars d=250mm DL=1200kN LL=700kN Pile capacity =250kN edge…

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

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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 vertical bored-and-cast-in-place pile 900 mm in diameter carrying a centrally-applied vertical…

A: In the given problem only friction resistance will takes place: The ultimate load will be:…

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

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

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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: 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: Design a pile group consisting of R mm carrying a total load of 2000 kM consists of a deposit of…

A: Column size- 750mmx750mm P-2000kN Cc=0.1 eo =0.9 γ=21kN/m3 C=40 kN/m2 Fos=2.5 α=0.7 D=40mm

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: For a pile foundation under a column, 5 identical foundation piles are used, with diameter D…

A: The characteristic value of bearing capacity Ra can be found out as shown below: Where,  n = Number…

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: The horizontal floor with a length of 15 m, has one downstream sheet pile with a depth is 12 m, an…

A: H=3 m Take ρ of concrete=2.45α=bd=1512=1.25λ=1+1+α22=1+1+1.2522=1.3 Required: To calculate floor…

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

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Q: Nine-pile group consist of 0.39-meter-diameter friction concrete piles 24 m long arranged in 3 rows…

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Q: For the (4 x 4) pile group as shown in the figure, the settlement of pile group, in a normally…

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Q: Nine-pile group consist of 0.32-meter-diameter friction concrete piles 23 m long arranged in 3 rows…

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Q: Nine-pile group consist of 0.21-meter-diameter friction concrete piles 20 m long arranged in 3 rows…

A: We will use Friction area of pile block

Q: 1- Find the ultimate capacity of the pile below using A- Meyerhof B- Vesic C- Coyle and Castello…

A: Given:- The dimension of the concrete pile = 0.46 m × 0.46 m  The length of the pile = 20 m  The…

Q: Aprecast concrete pile, 305 x 305mm in size is proposed to be installed at a site where two layers…

A: Differences Between Bored and Driven Piles in Terms of Installation Effects on Surrounding SoilBored…

Q: A square group of 9 piles (3 in each row) is installed in a clayey soil. The diameter of each pile…

A: Given:Total number of square group of piles, n=9In each row=3diameter of each pile, d=40 cm or 0.4…

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: For the foundation grounding of a building, it is planned to make a 40 m x 50 m network with a 90…

A: Solution: Given Data; Area=40m×50m=2000m3Cross sectionCoductor=90 mm2Soil resistivity=100 ohm.mMesh…

Q: A square pile of section 30 cm x 30 cm and length 10 m penetrates a deposit of clay having c = 50…

A: Given: A square pile of section 30 cm × 30 cm B = 0.3 m Length, L = 10 m A deposit of clay having c…

Q: A 10m long and 0.8m diameter precast concrete pile is driven into a saturated clay deposit as shown…

A: (a) The expression for the bearing capacity by alpha method is given by, Qup=9CAb+αCAS Here,…

Load and resistance factor design

Load and resistance factors design (LRFD), also known as Limit state design (LSD), refers to the design method used in building engineering. A boundary condition is a condition of a structure where it can no longer meet the relevant design requirements. The condition may refer to the load level or other actions on the structure, while the terms refer to the integrity of the structure, suitability for use, durability, or other design requirements. A structure designed for LRFD is limited to keeping track of all possible actions during its design time and is always ready for use, with the appropriate level of reliability in each boundary condition. LRFD-based construction codes clearly define the appropriate levels of reliability in their instructions.