What is a typical design group efficiency factor for piles driven into loose cohesionless soil without predrilling or jetting? How does predrilling and jetting affect this factor? Why?

Q: What are the factors to be considered for the selection of a pile type?

A: The selection of pile type: The selection of piles must be done for the large structure, to prevent…

Q: Define the problems associated with prestressed concrete piles (Daido)?

A: The origin of Diodo piles comes from Japan where these prestressed concrete piles are used as…

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: describe the procedure that is required to design a pile foundation and why would it be used. What…

A: Answer Information required for design the pile foundation No of pilesTotal service loadCalculate…

Q: Explain the another method of conducting instrumented static pile load tests.

A: The static pile load test gives the most accurate indication of the capacity of the pile. It is…

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: 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: Describe the categories of the structural loads applied to piles.

A: pile is the long cylindrical member made up with material which having high compressive strength .…

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: Explain some factors which are consider for the design criteria of wood piles.

A: Wood piles are to be coated special Chemicals like creosote oils so that the wood pipe is resistant…

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: Define the functions of cap block, drive cap and pile cushion in driven piles?

A: Solution: Cap Block are generally installed between the end of hammer and the drive cap to control…

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: For pile foundation designs, how the factor of safety functions?

A: The relation between factor of safety and allowable pressure is defined by the below given equation…

Q: What kind of information Load test results provide on pile type?

A: Load test can be carried out on piles after 28 days of casting the piles. Two types of tests could…

Q: What is the ultimate downward load carrying capacity of a single pile driven in soil?

A: The ultimate downward load carrying capacity of single pile driven in soil are : - Using Analytic…

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: 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 are Compression piles ? Explain the purpose & uses of Compression piles ?

A: Compression Pile :These are the piles that are acted upon by compression loads and they carry the…

Q: Describe the Basic concepts of pile capacity related to soil support.

A: In situations where soil at shallow depth is poor, then in order to transmit the load safely, the…

Q: Define the term composite piles.

A: Composite Piles are those piles that are driven one over the other of two distinct materials, so…

Q: Explain the difference between a rigid analysis and a nonrigid analysis for lateral pile loading.…

A: Given:- Difference between a rigid analysis and a non-rigid analysis for lateral pile loading.

Q: What are the Several different methods for performing pile load tests?

A: Pile load tests are performed on piles to check the bearing capacity of the pile, check the load…

Q: Discuss about the Carrying capacity of single pile in granular and cohesive soil ?

A: The   load bearing capacity of foundation soil or rock which enables it to bear and transmit load…

Q: Describe the method  of plotting pile load test data to determine pile design capacity.

A: Pile load test is done to determine the pile design capacity i.e to determine settlement of pile…

Q: Describe the Concept—Osterberg load cell placement and effects on test pile.

A: - In Osterberg test, The Osterberg cell also known as O cell is placed inside the pile during its…

Q: What are the primary advantages of using laterally loaded vertical piles instead of battered piles?

A: Introduction: Piles are used generally to transmit vertical loads and lateral loads to the…

Q: Compare circular, square and I section piles in terms of usage, cost and advantages/disadvantages?

A: Circular Piles  Usage These sections require less material to construct and provide stronger and…

Q: Define Plastic Composite Piles

A: The aim of producing piles that have lower maintenance costs and longer service lives than…

Q: What is “block failure” in a group of piles and how does it differ from individual failure?

A: The cylinder which is long and used for carrying loads and transfer it to hard strata and made up of…

Q: Briefly explain the types of failures in pile groups.

A: Pile foundations are among the most common alternatives for heavy-duty constructions and those with…

Q: What’s the difference between a hammer cushion and a pile cushion? What are the purposes of each?…

A: The main piles are used for the structure above some height. Like a railway bridge or highway or…