For the soil profile shown below, calculate the minimum number of precast concrete piles of 300mm dimeter required to safely carry the load for a given factor of safety of 2.5. assuming 100% of pile efficiency for the pile group

Q: to support a permanent axial load of 2200 kN and variable load of 1000 KN from a 500 x 500 mm…

A: According to given data  permanent axial load of 2200 kN and variable load of 1000 KN from a 500 x…

Q: Q4) The ultimate load capacity of a 10 m long concrete pile of square cross section 500 mm x 500 mm…

A:

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: Determine ultimate carrying capacity of pile of diameter 0.3m and length 10m driven into sandy soil…

A: Diameter of the pile = D = .3mLength of the pile = L = 10mUnit weight of soil = γ = 17KNm2ϕ = 30°

Q: Assuming a rigid pile, what is the minimum depth of penetration given a shear load of 894 lbs occurs…

A: Shear load(P)=894 lbs Falling height(H)=27  ft diameter of pile(D)=20 in or 1.67 ft Factor of…

Q: 3- The pile is classified as Micro (Mini) pile when its diameter is: *less than 0.2m less than 0.3m…

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Q: Calculate the Ultimate pull out load for the pile.

A: Given data,  Diameter of 0.9 m is embeded in stiff clay which has undrainedunit of cohesion, C= 130…

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

A: The ultimate bearing capacity of the pile is given by,

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

A:

Q: For a group of piles 3x5 with pile diameter is 0.4m and centre to centre spacing is 2.8 m,if the…

A: in  given question , there is 3*5 pile with 0.4 m dia and 2.8 m spacing width of pile  group=…

Q: Question 2 a) Pile is classified with respect to load transmission and functional behaviour. Discuss…

A: End bearing piles are ones which are rested on a hard strata like a rock. The loads are directly…

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

A: The objective of the question is to calculate the allowable load for a 14-inch square precast…

Q: An 18-in.-diameter, closed-ended steel pipe pile is driven 45 ft through soft sandy silt to bear on…

A: The tip resistance is generally obtained by the force required to push the tip of the cone…

Q: For a load of 1200 kN and assuming an overall factor of safety of 2.5, determine the required length…

A: the problem involves determining the required length of a pile for a given load and safety factor.…

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

A: Given- Weight of the pile Ps=20 kN, Diameter of the shaft Do=350 mm, Under ream dia Du=750 mm,…

Q: A group of 16 piles is arranged in a square pattern. The pile diameter is 350 mm. The length of pile…

A: The diameter of each pile, Total number of pile, The center-to center distance of pile is 1 mThe…

Q: Determine the breaking wave load on a 1 ft diàmeter pile in a design water depth of 5 ft.

A: We assume breaking load on pile acts at silt water level .. Given  Dia of pile = 1 ft.(round pile)…

Q: A 12 m long, 300 mm diameter concrete pile is driven in a uniform deposit of sand (phy =40) The…

A: Given that :-Length = L = 12mDiameter = d = 0.3average dry unit weight () = FOS = 2.5critical length…

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: A group of nine piles is arranged in a square pattern and is used as a foundation for column in…

A: Given-9-pile group arranged in a square pattern,foundation in sand,diameter d= 350 mm= 0.35…

Q: What would be the estimated ultimate tensile capacity of the pile?

A:

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: The ultimate load capacity of a 10 m long concrete pile of square cross section 500 mm x 500 mm…

A: Given, For pile 1:- Length = 10m Cross section = 500mm×500mm C=40kPa Ultimate load capacity= 700kN…

Q: A concrete pile of size 50 cm x 50 cm is to be provided in a clay stratum vhose unconfined…

A: Size = o.4mx0.4m load = 450  UCS unconfined compressive strength = 110kpa Hence c = 110/2 = 55…

Q: When pile load test (MLT) is conducted using reaction loading employing 4 tension piles of same…

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Q: An HP 13 * 60 pile is made of steel with fy = 50 k/in2 and is to be loaded in compression only…

A: Calculate the maximum allowable compressive load on pile using the equation P = fu × A ..... (1)…

Q: Please solve under Geotechnical Engineering II.

A: To determine the required length of the pile, we'll use the ultimate bearing capacity formula for…

Q: For a Pile designed for an allowable load of 4 kN driven by a single acting steam hammer with a…

A: Given:- The allowable load for a designed pile = 4 kN The pile is driven by a single acting steam…

Q: What is the ultimate capacity in kN of the pile group shown in the figure assuming the group to fail…

A: Given- Cohesion- C=40 kN/m2,L=10 m,d=0.4 m,

Q: A pile is driven into the ground with a drop hammer weighing 1200 kg and having a free fall of 2.0…

A: Given data- Weight of drop hammer W=1200 kg, Free fall H=2 m=200 cm, Penetration S=1 cm, To Find-…

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

A:

Q: A construction site is underlain by clay soil (an overconsolidated deposit). A 9-in.-diameter steel…

A: Given data: Diameter of the pile (d) = 0.9 in. Depth of driven (D) = 35 ft. Failure load or test…

Q: A pile group of 9 piles placed in 3 row, 1 m apart between rows, with 1 m spacing 1 m in…

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Q: RL=105m V (U/s water level) RL=100m (D/s water level) 3m 6m Pile Pile 15m 10m 2m 8m For the above…

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Q: The Danish pile-driving formula is to be used for field control of a pile installation. Steel pipe…

A: Part a.

Q: A sheet pile is installed in a soil with coefficient of permeability equal to 10-“ m/s. The flow net…

A: Given: Coefficient of permeability, k = 10-6 m/s Number of flow lines = 6 Number of equipotenial…

Q: A group of 12 friction piles, having 15 m length and 400 mm diameter each are arranged at a centre…

A: A group of 12 friction piles, having 15 m length and 400 mm diameter each are arranged at a centre…

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

A: The efficiency of pile group as per Converse-Labarre is given by: Where, m = number of columns of…

Q: For the four piles of a pile group having arc tan value of 18.3, the efficiency as per Converse…

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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…

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.