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What Is Piling?

Piling is a type of deep foundation ,used to transfer the load to a deeper level than is possible with  a traditional shallow  foundation. Verticals colums of concrete ,steel,wood or a combination are driven deep  into the ground to give extra support to the building that site on top.

Another, a pile or piling is a vertical structural element of a deep foundation, driven or drilled deep into the ground at the building site. there are many reasons that ageotechnical engineer would recommended a deep foundation, over a shallow foundations, such as for a skyscraper. Some of the common reasons are very large design loads, a poor soil at a shallow depth,or site constraints like property lines.

Traditionally piles were made of timber ,but they are now usually concrete often reinforced or cased in steel  used for large building where they support an unusually heavy load.

In a days, need of piling  is very much like a traditionally shallow foundation is enough when the ground id suitable and the load it has to support is moderate , but there are many ways for the ground to be unsuitable ,so that piling is strongly advised for –

  • The water table is high .
  • The soil is of a type whose stability will be affected by water.
  • Deep touch foundations from a previous building would be expensive to remove.

     So, driving the piles straight in,as opposed to shafts being excavated first has the advantage that the process of driving compacts the soil around the pile, strengthening  it and increasing its load-bearing capacity.

System of pile foundation reluing on driven . Piles often have groups of piles connected by a pile cap to distributed loads which are larger than one pile can bear.Pile caps and isolated piles are typically connected with grade beams to tie the foundation elemant together. Lighter structural elemant bear on the grade beams,  while heavier elements bear directly on the pile cap.

     Many different types of piles are used, but some are for specialist use such as foundation domestic building are:-

ü  Sectional Augur Minipiles .

ü  Grout Injected Continious Flight Auger.

ü  Steel Cased Bottom Driven Piles.

ü  Steel Cased Grundmat  Driven  Piles.

ü  Contiguous Piling.

Piling is not a new technique for foundation. It is traditionally been used for large building where they support an unusually heavy load. Since the 1980s, though, the construction industry has come use it for everything from domestic conservatories to off –shore wind farms. 

  • The water table is high .
  • The soil is of a type whose stability will be affected by water.
  • Deep touch foundations from a previous building would be expensive to remove.

     So, driving the piles straight in,as opposed to shafts being excavated first has the advantage that the process of driving compacts the soil around the pile, strengthening  it and increasing its load-bearing capacity.

System of pile foundation reluing on driven . Piles often have groups of piles connected by a pile cap to distributed loads which are larger than one pile can bear.Pile caps and isolated piles are typically connected with grade beams to tie the foundation elemant together. Lighter structural elemant bear on the grade beams,  while heavier elements bear directly on the pile cap.

     Many different types of piles are used, but some are for specialist use such as foundation domestic building are:-

ü  Sectional Augur Minipiles .

ü  Grout Injected Continious Flight Auger.

ü  Steel Cased Bottom Driven Piles.

ü  Steel Cased Grundmat  Driven  Piles.

ü  Contiguous Piling 

Source : Google, Wikipedia & Other websites.        

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