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Pile and Pile Driving

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Pile and Pile Driving

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        A pile is used to transfered the weight of the house or the building to the ground. The transfer of the weight depends on what kind of transferring the engineer intended. There are two types of weight transfering—transferring to the solid ground at the end of the pile or transfer with friction force to the ground around the pile.
 


        Reinforced concrete pile most used in the construction are I shape pile and square solid pile.In Bangkok and perimeter where the soil is soft, the 16.00-21.00m. long pile is used (except in Samutprakarn the pile used is not less than 21.00 m. long).Before the pile is driven, the completion of the pile, the age of the pile should be checked. The manufacture date is written at the pile. The reinforced pile ready to be used is 7 days after it is manufactured.


Cautions
  • In case the soil is soft and the long pile is used, the first pile is easily driven (in case two piles are connected).If the contactor is careless and the overweight is used in the driving process, the first pile will go quickly into the ground and damage the friction of the soil. Therefore, during the driving process, the supervisor must pay attention to the work carefully.
     
  • In case 2 connected piles are used, the electrical welding should be used to prevent the two piles separate during the driving process.
     
  • When the driving of the piles is completed, the deviation from the center must be checked. If the deviation exceeds 5 cm., the engineer who designed the structure must be informed to correct or redesign.

        If the pile deviates from the center and the engineer has to redesign the structure, there will be an additional expense which the manufacturer and the contractor must take a responsibility for the expense.
 
Best wishes from PD House Home Builder Center