The Danish pile-driving formula is to be used for field control of a pile installation. Steel pipe piles penetrating approximately 40 ft are to provide a design capacity of 60 tons. Each pipe has a net cross-sectional area of 20 in.2(a) What should be the set under the last blow of an ICE Model 115 hammer to obtain the desired axial capacity?(b) What set is required by the Gates formula?

Q: Q3. A 1200-lb hammer falling freely through 3 ft drives a 600lb pile in. vertically into the ground.…

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

A: Gjj

Q: A wooden pile is being driven with a drop hammer weighing 30 kN and having a free fall of 1 m. The…

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Q: Why would it be inappropriate to use the Terzaghi bearing capacity formulas  to determine the toe…

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Q: A pile with a square cross-section, B × B = 0.5 m × 0.5 m, is driven in a clay soil which has an…

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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: Explain why pile driving formulas are not reliable, and why a wave equation analysis is a better…

A: Solution: Pile driving formulas are not reliable because Pile Driving formulas are very simple.…

Q: Define  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: 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…

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Q: Which advantages fall under which type of pile? Please answer this asap. For upvote. Thank you very…

A: The foundation or substructure of the building is the structure lying below the ground surface to…

Q: Explain the methods of determining load carrying capacity of a pile.

A: Methods of determining load carrying capacity of a pile: Static method : suitable for friction…

Q: A precast concrete pile of size 30 x 30 is driven by a 300 kg drop hammer with a height of fall of…

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

A: Given Data: Shear strength = 3752psf pile diameter = 14 in = 14/22ft = 1.167ft Length = 22ft

Q: Describe the relationship between the capacity of a tested or analyzed pile and the driving record.

A: Relationship between the capacity of a tested or analyzed pile and the driving record is given by…

Q: 2. Three cast-in-place square piles with a side length of 700mm are installed under a certain…

A: Determine the properties of each soil layer. The properties of each soil layer are given in the…

Q: (c) Under which conditions could a "block failure" mechanism provide a "reasonable" prediction for…

A: Required: To give explanation for following  (a) Under which conditions a block failure gives…

Q: When we classify the piles in accordance to the type of loading, then we may call it as: *End…

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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: 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: Calculate the combined settlement (81 + 82 + 83) of a single bored pile in a deep uniform clay layer…

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Q: As driven piles penetrate into a saturated clay soil, why the material in the vicinity of the pile…

A: Once a pile is driven into clay, the soil around the pile develops vertical and horizontal…

Q: What is 'negative skin friction' on pile and why does it causeconcern? How do you estimate its value…

A: Negative skin friction is the downward movement of surrounding soils relative to the piles. Negative…

Q: Draw the diagram of ram-type pile-driving hammers.

A: Pile Driving is a type of activity in which piles are inserted in the ground or driven in the ground…

Q: Find the best match between the 2 groups:   1. Drilled Piers 2. Drop Pile Hammer 3. Composite Pile…

A: The correct match is stated below.

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: 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: 13. Among the following piles, which one does not belong to displacement pile ( B. Bored pile D.…

A: Displacement piles are defined as those piles that displace the soil laterally when they are…

Q: Q.1 Consider a real-life scenario in which you have to do a piling work on a dry surface? The Pile…

A: The following equipment are used during piling for the given condition: 1. Piling rigs: This is used…

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: Describe the factors of safety for design of piles.

A: Answer IntroductionA pile foundation is a cylindrical structural member made of concrete, steel, and…

Q: Discuss about the Factors influencing the selection of pile  ?

A: Pile foundations are used to transfer loads from the structure to low levels in the ground using…

Q: Describe the feature of the installation procedure for a driven pile.

A: The piles are used to lay the foundation at hard strata thus getting better bearing capacity of soil…

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

A: Data Given: Shear force/Lateral Load = 894 lbse = 27 ftDiameter of the pile = 20 inches = 1.67 ftFOS…

Q: 10 A pile of 40cm diameter and 18.5m -long passes through two layers and embedded in a third layer.…

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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: Calculate the steel of spiral stirrups for a circular pile of X meter height where X is 133 and…

A: Spiral Stirrups of a Circular Pile Length of pile, L=133 m Diameter of pile, D=1.25 m Pitch of…

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

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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…

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Q: Assuming the Top of Slab Elevation is 100.00 feet, what would the Top of the Pile Cap Elevation be…

A: Given:Eds = Deck Slab elevation = 100 ft    To find :Epc = Elevation of pile cap

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…

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