A group of 16 piles of 10 m length and 0.5 m diameter is installed in a 10 m thick stiff clay layer underlain by rock. The pile-soil adhesion factor is 0.4; average shear strength of soil on the sides is 100 kPa; undrained shear strength of the soil at the base is also 100 kPa. 12.9 The base resistance of a single pile is (a) 40.00 KN (b) 88.35 kN (c) 100,00 KN (d) 176.71 kN

Q: The flow net around a sheet pile wall is shown in the sketch. The properties of the soil are…

A:

Q: A driven pipe pile with an outside diameter of 450mm and a wall thickness of 7mm, 18 m long, is…

A:

Q: Asteel pipe pile having a diameter of 0.35 m is driven 15 m into a loose sand with a unit weight of…

A: Given data: Diameter of the pipe = 0.35 m Depth of driven = 15 m Angle of internal friction = 33o…

Q: Figure below shows the cross-section of an excavation which is to be made alongside a river. Write…

A: To find -Depth to which water in the trench can be reduced before instability occurs.

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: 1. A ten-story building is to be constructed at a site where the water table is close to the ground…

A:

Q: Consider a drilled, rough concrete pile with diameter B = 1m and length D = 10m embedded in a site…

A:

Q: A 50 cm square prestressed concrete pile will be driven 20 m into the soil profile below. (water…

A: A square pile = 0.5 mLength of pile = 20 mr Driven pile

Q: A group of nine piles 300 mm in diameter is driven into a clay layer 16 m thick with rock below the…

A: Given:- D=300mm t =1 6m  L=9m Spaced = 500 mm c/c undrained shear strength = 100kN/m2  α=0.5, Eu =40…

Q: A 10.5m deep excavation in clay is to be retained with an 18m long sheet pile wall. The excavation…

A: H=10.5 msheet pile (H) = 18 mTo find- Apparent pressure diagram

Q: concrete pile 1S.24 m long haVing fully embedded in a saturated clay layer for which y = 19.02…

A: Capacity of the pile shaft  isQ=∑ αCuPLusing tableα=0.54…

Q: A closed-end steel pipe pile is driven into thick saturated clay strata. The diameter and length of…

A: For closed-end steel pipeDiameter of pile: d = 0.4 mLength of Pile, L=32 mTo find

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.