Provide Feld’s rule for determining group capacity of pile groups ?

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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: A single pile of diameter 50 cm and length 10 m is driven into clay having unconfined compressive…

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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

Q: The length of the pile required for the above design load

A: This question is from geotechnical engineering

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

A: The ultimate load which a foundation can support is calculated by terzaghi bearing capacity…

Q: A concrete pile 450 mm in diameter and 15 m long is driven into a clay soil. The undrained strength…

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Q: Q6) Determine the combined stress in HP 14 x 89 pile shown below. The pile is 25 feet long. E =…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Check the total settlement of a group of pile as shown in Figure 1. The total allowable settlement…

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Q: SIT V. A 0.3 square prestressed concrete pile is to be driven at a site where soil conditions are as…

A: Width of square pile = 0.3m

Q: (a) Determine the allowable load-carrying capacity of the bored concrete pile for: embedded length =…

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Q: What are the two methods that are used to determine the capacity developed along the length of the…

A: Pile load capacity depends on a number of factors including cross section, pile length and shape…

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: How does the Pile capacity can be determined?

A: Piles may either be pushed or casted on the spot. Pile drive is accomplished through: affect lateral…

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: What precautions should be taken to avoid heaving of soil while driving the pile?

A: Heaving of Soil Heave is the phenomenon of the soil beneath a property expanding and pushing the…

Q: State the different types of piles according to its function and construction?

A: The types of piles are:End bearing piles: These pile have strong ends so as to resists the load and…

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: Discuss the following method of load carrying capacity of pile : Static formula

A: There are four types of the load-carrying capacity of piles1) Static Method2) Dynamic Formulas3)…

Q: In what situation would the LTP be complemented by a pile cap?

A: A pile cap is a mat-like structure made of cement, sand and small scales. This mixture is placed in…

Q: Describe the Arrangement for Piles in a Group.

A: If applied load is large and then pile group is used rather than an individual pile.  The individual…

Q: What is pile foundation? Discuss the classification of pile based on materials/composition and load…

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Q: Describe representative Pile Load Capacities and Available Lengths.

A: The ultimate bearing capacity of a pile is the maximum load that it can carry without excessive…

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

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

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Q: The length of friction piles based on O Shear strength of soil O Pile size O applied load O all of…

A: 6. The length of friction piles based on: The loads are transferred from the structure to the soil.

Q: A precast circular pile (like a concrete rod) of length Land diameter D is to be lifted at two…

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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: SITUATION. A 15m precast concrete pile is to be lifted. If the unit weight of concrete is 23.54kN/m3…

A: let w be the udl over pile w = 23.5x0.4x0.4 = 3.76KN/m

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: 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: In designing the lateral resistance of piles, should engineers only use the earth pressure against…

A: Answer Introduction Lateral load resisted by the following ways 1) Passive soil resistance on the…

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: 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: 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: Explain the design process of pile supported mats.

A: Question is based on the pile supported mat . In the question design process of mat foundation…

Q: How to determine the efficiency of group of nine piles (3x3) by Feld’s rule ?

A: The efficiency of the pile group is defined as the load-carrying capacity of the pile group to the…

Q: Explain these two questions based on pile foundations: i) How do the soil stress states and strain…

A: 1) How do the soil stress states and strain states change by the installation and structural loads?…

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

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Q: b) A bored pile was installed in dense sand with the following data- kN/m The ground water table was…

A: Diameter of pile (d) = 0.6 mLength of pile( L) = 20 mAngle of internal friction(ϕ) = 30°γ = 20…

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: Estimate the group efficiency of a 4 X 6 pile group, consist- ing of 400 mm diameter concrete piles…

A: Answer:- 1. According to Converse Labarre the efficiency:

Q: A 16 in diameter, 75 ft long drilled displacement pile is made of grout with f'c = 5,000 lb/in2. A…

A: Solution Given Data diameter= 16 in Long= 75 ft  f'c = 5,000 lb/in2 Steel ratio= 0.04

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

A: It is required to find I. Ultimate point load resistance of pile Ii. Total Ultimate skin friction…

Q: Design a bored pile carrying a compressive load of 1000 kN and a moment of 50 kNm. Use M25 mix and…

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Q: What is pile foundation? Discuss the classification of pile based on materials/composition and load…

A: Pile foundation - Pile foundation is the deep foundation that is employed to transmit the building…

Q: Check the total settlement of a group of pile as shown in Figure 1. The total allowable settlement…

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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.