A 600 mm square prestressed concrete pile is to be driven to a depth of 20.0 m into the follow- ing soil profile:

Q: B- For the given conditions: Pile dia.=0.5m, L=12m, bored pile, Piles No.=6, S=1m, Rectangular Cap…

A: For single pile -  Ultimate load capacity =  Qu = Qsu + Qbu⇒Qu = 250 + 400⇒Qu = 650 KN   For…

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: Estimate the pile length required to carry the 900 kN axial load for the pile-soil system shown the…

A: Given the details of Soil profile as:Soil 1:C= 35 kPaSoil 2:C= 45 kPaSoil 3:C= 55 kPaSoil 4:C= 60…

Q: A large sign is to be supported on two steel poles, each of which will be supported by an 18 in…

A: Given Datalateral wind load=3000 lbsoils are sandy clay with su = 2,500 lb/ft2Factor of safety…

Q: Drilled piles resisting uplift loads need steel reinforcement:   -True -False

A: True

Q: True False

A: Steel and RCC piles are used as friction piles.Whereas steel pipes provide good performance as…

Q: A solid steel pile (E = 200 GPa) with uniform diameter of 100 mm is driven into a soil layer and…

A: The given data is as follows: E=200 GPaDiameter of pile=100 mmVertical force=40 kNFrictional…

Q: A 5x 5 group piles of 0.4 m diameter displacement piles are to be constructed. The spacing between…

A: Solution: Given Data: d=0.4mthickness of pile, z=1.2 mLength of pile, L=20 mSpacing of pile=3…

Q: What is the pile bearing capacity if the Downward drag = 0.6 psi, h1 = 30', h2 = 4', Frictional…

A: Downward drag = 0.6 psi, Height , h1 = 30',Height , h2 = 4',Frictional stress = 3.5psiAxial stress =…

Q: A 20 m long horizontal concrete floor under a barrage on a permeable foundation retains a 5 m head…

A: Given-Length L=20 m,Head =5 m,5 m deep downstream end pile.Calculate the exit gradient.

Q: Depth (ft) 0-10.0 10.0-16.5 16.5-35.0 35.0-65.0 Soil classification Silty sand (SM) Sandy silt (ML)…

A: Given: Depth=15 ft To find: Qcb

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

A:

Q: A bored pile of 0.8 m in diameter is constructed in sand. Soil conditions and relevant soil…

A:

Q: A square prestressed concrete pile with a cross section 0.3 m by 0.3 m is driven 15 m into over-…

A: Given:- Cross section of the pile=0.3 m by 0.3 m15 m driven into consolidated claysfrom ground…

Q: Q2/What are the Classification of Piles According to Method of Construction?

A: The given question is based on foundation engineering.

Q: A group of 9 piles of 27 cm diameter is arranged in a square configuration with a center-to-center…

A: Given data in question  Cohesion Adhesion factor Square pile  Spacing Length To find out  Ultimate…

Q: A group of 9 piles of 31 cm diameter is arranged in a square configuration with a center-to-center…

A:

Q: A cantilever wall is to be installed in a granular material which has a unit weight of 122 pcf, a…

A:

Q: An anchored sheet pile is to support a mass of cohesionless soil up to a height of 6 m above ground…

A: Given- cohesionless soil height=6 mspacing of anchor=1 munit weight of soil=21 kN/m3angle of…

Q: Design a pile group consisting of R mm carrying a total load of 2000 kM consists of a deposit of…

A: Column size- 750mmx750mm P-2000kN Cc=0.1 eo =0.9 γ=21kN/m3 C=40 kN/m2 Fos=2.5 α=0.7 D=40mm

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: 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 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: A rectangular pile (0.5mx0.83m) is driven in a clayey soil arrangement composed of two different…

A:

Q: Problem- A 20 m long horizontal concrete floor under a barrage on a permeable foundation retains a…

A: Given- Length L=20 m, Head =5 m, 5 m deep downstream end pile. It is needed to find the exit…

Q: The horizontal floor with a length of 15 m, has one downstream sheet pile with a depth is 12 m, an…

A: H=3 m Take ρ of concrete=2.45α=bd=1512=1.25λ=1+1+α22=1+1+1.2522=1.3 Required: To calculate floor…

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: Q3/ A 600 mm square prestressed concrete pile is to be driven to a depth of 20.0 m into the follow-…

A: Skin fraction capacity - QS QS = AsCa Here, As = 4×.6×18⇒As = 43.2 m2 And Ca = 35×5 + 55×5 + 6×85 +…

Q: Estimate ultimate capacity of a timber pile with tip diameter of 180 mm and top diameter of 360 mm,…

A: Solution

Q: 12 - Precast piles are suitable for a) O Protect water front structures b) O Maximum design load C)O…

A: Classification of piles based on function is as follows. End bearing piles Friction piles…

Q: Answer the following 1-Point bearing piles extend to a stable soil or rock layer below the…

A:

Q: A large sign is to be supported on two steel poles, each of which will be supported by an 18 in…

A: Solution: Given Data lateral wind load=3000 lb soils are sandy clay with su = 2,500 lb/ft2 Factor of…

Q: Aprecast concrete pile, 305 x 305mm in size is proposed to be installed at a site where two layers…

A: Differences Between Bored and Driven Piles in Terms of Installation Effects on Surrounding SoilBored…

Q: The unconfined compressive strength of cohesive soil strata is 40 kN/m² and diameter of pile if…

A: Cohesive soil- UCS=40 kN/m2. diameter D=0.56 m, Depth of fill H=1 m, It is needed to find the value…

Q: A 650 mm diameter bored pile is driven into the ground until 30 m deep. The undrained shear…

A:

Q: 1. A1 ft x 1 ft size and 30 ft deep concrete pile is to be driven in the clay layer shown in the…

A: Size of footing  A=1×1=1 ft2depth of pile cap =3 ftthen length of footing 17 ft in soil A  and  30…

Q: State the method to determine the N-value of soil and the normal N-value required for supporting…

A: Concept- N-Value of the soil- It is a very important parameter for the determination of the shear…

Q: An excavation 5 m depth is supported by a sheet pile. The sheet pile is extended 3.2 m below the…

A:

Q: A high rise building will be built in a reclaimed area in Metro Manila. Concrete piles will be used…

A: Height = 5750 mm - 2250 mm = 3500 mm = 3.5 mNumber of Columns  = 6Size = 1800SO, Volume of concrete…

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.