A 600 mm square prestressed concrete pile is to be driven to a depth of 18 m into the following soil profile. Groundwater table is at the depth 8 m below the surface. Using the Randolph and Murphy method, determine 1) What is the nominal skin friction capacity of the pile? 2) What is the nominal toe bearing capacity of the pile? 3) What is the allowable downward load capacity of the pile with a factor of safety of 3? 4) Is the pile primarily toe-bearing or frictional? Why Depth (m) Soil type Y (kN/m³) Su (kPa) 0-5 Clayey silt 17.0 35 5-10 Clayey silt 17.0 55 10-16 Clay 18.0 85 16-23 Clay 18.5 110

Q: A wooden pile is driven with a drop hammer weighing 20 kN and in the second trial it was driven with…

A: Gjj

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Q: A 0.45m square pile is to be driven at a depth of 10m into the soil. What is the allowable pile…

A: B (size of pile) = 0.45m d (depth of pile) = 10m FOS = 3

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Q: 2. A 0.45 m diameter, 20 m long, precast concrete pile is driven into a sandy soil profile. The SPT…

A: ###DETERMINATION OF Ultimate bearing Capacity of Driven Pile into a Sandy Soil wih SPT value given…

Q: A 14-in.-diameter steel pipe pile is driven 50 ft into overconsolidated clays having the following…

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Q: A concrete pile is 15 m long and has 406 mm diameter circular cross section. The pile is fully…

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Q: -- Pile in Sand (friction and end bearing) Make calculations to determine the Allowable Load for a…

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Q: A wooden pile is being driven with a drop hammer weighing 20 kN and having a free fall of 1.0m. The…

A: Weight of drop hammer = 20 kNFree fall = 1.0 mPenetratiin in last blow = 5 mmTo Find :Load carrying…

Q: A solid steel pile (E = 200 GPa) with uniform diameter of 100 mm is driven into a soil layer and…

A: The given data is as follows: E=200 GPaDiameter of pile=100 mmVertical force=40 kNFrictional…

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

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Q: A singly under-reamed, 8-m long, RCC pile (shown in the adjoining figure) weighing 20 kN with 350 mm…

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Q: Determine the base capacity of a square pile with a 0.4 m width and a 10 m length using Hansen's…

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Q: Qu= qbAb + αcu,ave As qb= CuNc* Depth (m) 1 3 5 7 9 11 13 Table 1: Strength profile 15 17 19 21 Cu…

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Q: A drop hammer is used to drive a wooden pile. The hammer weight is 30 kN and its free falling height…

A: Given data,For drop hammer is used to drive a wooden pileWeight of hammer=30 kNFalling height =0.9…

Q: An 18 in diameter, 75 ft long ACIP pile is to be constructed in the following soil profile:…

A: Given:- d = 225 ft  FOS = 3 d =18 inch L=75 ft To find:- ASD allowable downward load capacity

Q: Calculate the minimum and maximum axial compressive capacity of a 1.2 m diameter closed- ended steel…

A: D(diameter of pile) = 1.2m The top layer of sand and second layer of clay  will only provide skin…

Q: exampley Determine the ultimate load of closed ended pipe pile using the Static load test data of…

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Q: A 50 cm square prestressed concrete pile will be driven 20 m into the soil profile below. (water…

A: Given: A_b = (50 cm)2 / (100 cm/m)2 * pi / 4 = 0.196 m2 c' = 4 kPa (using ϕ= 28 deg) N_c = 14.7 N_q…

Q: Describe the following briefly: (a) Negative Skin friction and its estimation. (b) Dynamic…

A: Negative skin friction or 'down drag' is a phenomenon, in which portion of a soil layer surrounding…

Q: on a site nderlain by expansive Deen recommended. The

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Q: A closed ended precast concrete pile, circular cross section with 1 ft diameter, is driven in…

A: Pile diameter 1 ft. End bearing capacity of pile Qp = Ab×fb  fb= σv'Nq   σv'=105×5+112.4×20-62.43×20…

Q: A single pile, 50 cm in diameter and 16 m long, is driven in clay having an average unconfined…

A: Given data :-Single pile Diameter = d = 50 cmLength = L = 16 mAverage confined compressive strength…

Q: The average values of the undrained shear strength (cu) with depth are given below. If a CFA pile…

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Q: A cast-in-situ bored pile 0.50 m diameter and 10 m deep is placed in a purely cohesive soil. If the…

A: Given that, Diameter of the pile= 0.5m Cohesion of the pile Cu = 4t/m² Ultimate bearing capacity of…

Q: The average values of the undrained shear strength (c,) with depth are given as follows: Depth (m) ,…

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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: own in figure below. Use a FS = 3 if necessary. Assuming that pile setties se shear strength of the…

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Q: A concrete pile 458 mm by 458 mm square cross section is embedded in a saturated clay. The length…

A: Given data- A concrete pile 458 mm by 458 mm square cross-section. Saturated clay. The length of the…

Q: A 24 inch square prestressed concrete pile is to be driven to a depth of 68 ft into the following…

A: Square pile of size 24 in x 24 in  Factor of safety is 3

Q: The average values of the undrained shear strength (c,) with depth are given below. IT Depth (m) C,…

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Q: 12 m c=0 Y = 16.8 kN/m³ $ F = 1.4 Dr=0.80 = 35° -30.5 cm

A: Spacing= 2.5 m Angle of friction= 35°

Q: Please help me solve The soil profile and soil properties at a site are shown  in the table below.…

A: Given data Number of Piles =12 n a 3 x 4 matrix L = 12m D = 0.45m Pile spacing 1.5m

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A: Due to the loading in the pile no cracking will be form hence the positive bending moment at mid of…

Q: Determine the allowable bearing load of the pile shown in figure Q1 using all the possible methods…

A: The soil is cohesive. We will only need cohesive soil parameters.

Q: A circular concrete pile 350 mm in diameter is to support a load of 270kN.Itis driven in a stiff…

A: given diameter of pile (D)= 350 mm given diameter of pile (D)= 0.350 m area of pile cross section =…

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: Consider a continuous flight auger pile in a sandy soil deposit 10 m long with a diameter of 0.45 m.…

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Q: The Young’s modulus of the concrete of the piles is 75.8 GPa and the concrete unit weight is 25…

A: E (Young's modulus of the concrete of the piles) = 75.8 GPaConcrete unit weight = 25 kN/m³Pile…

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

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Q: A single pile, 60 cm in diameter and 15 m long, is driven in clay having an average unconfined…

A: Given, d=60 cmL=15 mcu=1202 kN/m2cu=60 kN/m2α=0.75

Q: egarding the group pile shown in figure Q3, the piles having a diameter of 457 mm, located at (4) m…

A: Given:- d=457mm spacing=s=4m c/c depth =16m soil unit weight = 17.9 kN/m3 angle of internal…

Q: A square pile group of 16 piles penetrates through a filled up soil of 3 m depth. The pile diameter…

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Q: DESIGN A PILE CAP USING THE STRUT AND MODELING METHOD. A 16"x16" precast concrete pile with pile…

A: Given-         size of pile -        pile capacity- 122 kips        Fc- 5000 psi        Length of…

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.