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: In general, as the required embedment depth increases, does the induced moment in the sheet pile…

A: Sheet pile wall consists of number of sheet piles driven side by side to form a continuous vertical…

Q: he soil profile and soil properties at a site are shown in the table below. A group of 12 concrete…

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

Q: slipping when it makes an angle of 60 degree from the horizontal, determine the tension of the cord…

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Q: Calculate the pile point bearing capacity using Meyerhof's Method, where a Concrete pile of diameter…

A: The given data is: Diameter of concrete pile=12 in Length of pile=25 ft Unit weight of sand, γ=128…

Q: Piles are needed to support columns in a high rise building at a particular site. The probability of…

A: Given:- The probability of failure of a pile due to excessive axial load = 10  The number of piles…

Q: The results of pile load tests are usually considered to be the “correct” load capacity, and all…

A: IT is not possible to find a single correct capacity of pile.   This is generally because we have to…

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: -- 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: 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: 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: Q-4: A precast concrete pile of size 50 cm x 50 cm is to be driven into clay strata whose unconfined…

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Q: 7.6 A dozer with as S-blade has pushed a normal load onto a level area. The height of this load…

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Q: Calculate the side resistance in kips using the US Army Corps of Engineers (EM 1110-2-2906, Figure…

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Q: determine: Pile Load Test -- You are to use the results of a pile load test given below to A. The…

A: The question might be related to calculating the equivalent resistance (Req) of the parallel…

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: Sometimes pile driving contractors use predrilling when installing piles. This method consists of…

A: Predrilling is not suitable as much time before of pile installation because the purpose of deep…

Q: Compute the compressive force at the most stressed pile for each pile cap given in the table below.…

A: Weight of pile cap = 3.6*3.6*0.4*25 = 129.6 kN.                                = 3.6*3.0*0.4*25 =…

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

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

A: Determining the empirical adhesion factor-Length of the pile=10mHence, Cu=80 kN/m2, would be taken…

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

A: The length of the pile lies between the 8 m to 12 m. So, cu=80 kN/m2 The empirical adhesion factor…

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: Discuss the method of obtaining ultimate load and also allowableload on a single pile from pile load…

A: Pile load test is the in situ method of the calculation of the load and settlement. This method is…

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: QUESTION 3: Three forces act on a pile as shown. If the resultant of the three forces is equal to…

A: An arrangement of forces have been given and it has been asked to determine missing force and its…

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: A group of twelve prestressed concrete piles is to support a building column. The total downward…

A: The compressive load on each pile will be:   P=Total downward loadnumber of pilesP=490012   =408.33…

Q: Discuss the ultimate load carrying capacity of the single pile when the pile embedded soil is; i)…

A: In Granular soils the ultimate load-carrying capacity: The pile drives load-carrying capacity from…

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

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Q: thank you much. And if I need to calculate the loads on the piles under column C3 and select a…

A: For this problem, we have to find out design for column C-3

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

Q: a 30 cm well penetrates an unconfined aquifer of saturated depth 25m. When a discharged of 2100 lpm…

A: Given:The diameter of the well is 30 cm.The depth is 25 m.The discharge is 2100 lpm.The radial…

Q: SITUATION 1: A pre-stressed concrete pile of length L is to be picked up by crane at two points,…

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

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

A: Part a.

Q: the calculations to find the pile cap depth if pile diameter is 12(3/4). Also calculate the minimum…

A: Consider given data Depth of the pile is 12 m     H=12 mand   diameter od the piles        D=34…

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: A proposed highway bridge will be supported by 180 piles, each about 18 m long. The design load per…

A: Number of piles required for pile load tests varies from 0.5% to 2% of the total piles of the…

Q: Silty clay Y- i18 Iivn C,- 700 Ib/ft 20 ft Groundwater Plasticity index, PI = 15 table . Silty clay…

A: Given : Equation 9.45, fav = 0.02 pa(N60) Equation 9.46, fav = 0.01 pa(N60) Equation 9.47, fav =…

Q: 4. The following data was obtained in a vertical pile load test on 300 mm pile diameter pile.…

A: Safe load / Allowable load on a single pile should be the least of the following: 1 Two-thirds 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.