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Gulam 56
Gulam 56
Gulam 56
Gulam 56
Gulam 56
Gulam 56
Gulam 56
Gulam 56
Gulam 56
Gulam 56
Gulam 56
Gulam 56
Gulam 56
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Gulam 56

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  • 1. Parul Institute of Engineering & Technology Subject Code : 355002 Name Of Subject : STRUCTURE Name of Unit : TYPES OF FOUNDATION Topic : PILE FOUNDATION Name of Faculty : SHONAK PUROHIT Name of Students: (i) MANSURI GULAMNABI F. En no-116380350056
  • 2. Foundations • Foundations are structural components used to support columns and transfer loads to the underlying Soil. Foundations Deep Shallow Isolated footing Combined Strap wall footing footing footing Raft footing Caissons Piles
  • 3. Pile foundation • Our building is rested on a weak soil formation which can’t resist the loads coming from our proposed building, so we have to choose pile foundation. Pile cap Weak soil Bearing stratum Piles
  • 4. Pile foundation • Piles are structural members that are made of steel, concrete or timber.
  • 5. Function of piles • As with other types of foundation, the purpose of a pile foundation is: – To transmit a foundation load to a solid ground – To resist vertical, lateral and uplift load • Piles can be – – – – Timber Concrete Steel Composite
  • 6. Concrete piles General facts – Usual length: 10m-20m – Usual load: 300kN-3000kN Advantages – Corrosion resistance – Can be easily combined with a concrete superstructure Disadvantages – Difficult to achieve proper cutoff – Difficult to transport
  • 7. Pile foundation Piles can be divided in to two major categories: 1. End Bearing Piles If the soil-boring records presence of bedrock at the site within a reasonable depth, piles can be extended to the rock surface 2. Friction Piles When no layer of rock is present depth at a site, point bearing piles become very long and uneconomical. In this type of subsoil, piles are driven through the softer material to specified depths.
  • 8. Pile Cap Reinforcement • Pile caps carrying very heavy point loads tend to produce high tensile stresses at the pile cap. • Reinforcement is thus designed to provide: – Resistance to tensile bending forces in the bottom of the cap – Resistance to vertical shear
  • 9. How does a pile look like? • Before presenting the actual picture of a pile foundation some schematic pictures of pile foundation are presented below.
  • 10. Figure 1 All the above schematics show the various types of pile foundations and loads carried by them
  • 11. Schematics of Pile foundations based on method of construction Figure 2
  • 12. …THANK YOU…

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