SITUATION: A precast concrete pile 16 m long has a diameter of 400 mm. The pile is driven through layers of clay and a dense compact sand with the upper layer which is clay having a thickness of 5 m and a unit weight of 16 kN/m². Water table is at the bottom of the clay layer. Saturated unit weight of sand is 18 kN/m?, with a bearing capacity factor of 72 and a lateral pressure factor for compression of 1.24. Angle of friction of the concrete pile is 28°. Neglect skin friction on the clay layer. Determine the design capacity of the pile using a factor of safety of 2.5.

Q: Example 3 A 12 m prestressed concrete pile 450 mm square is installed in a clay with water table at…

A: given- 12 m prestressed concrete pile450 mm squareclay with water table at 5 m depthupper clay layer…

Q: A 500mm x 500mm precast concrete driven pile, 15 m long, is proposed to support a column load in a…

A: Given, B=500 mm L=15 m Nc*=9  cu=100

Q: A circular pile with a diameter of 400 mm was driven to a depth of 12 meters into the normally…

A:

Q: A group of piles as shown on the figure has a cross section of 0.30 m x 0.30 m. It has a total…

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Q: Calculate the allowable axial load for the driven pile of ( 0.5 m) dia. And ( 20 m) depth, in a…

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

Q: A square pile group of 9 piles passes through a recently filled up material of 3.5 m depth. The…

A: A square pile group of 9 piles,Depth of pile = 9 m,Depth of soil fill =3.5 m,Diameter of the pile=30…

Q: Determine the diameter of 70 ft long pile driven in the medium dense sand (Shown in Figure). Design…

A:

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…

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.