Need And Functions Of Pile Foundation In The Vertical Construction
pile foundation is necessary to give strengthen and safety to the structure coming up at the ground . The pile foundation is done in those soils that lack the capacity to take the load of the structure being proposed . In simple works, when the soil bearing capacity is low , the pile foundation is done to give strong foundation to the proposed building .
The basic aim is to take the weight of the coming structure to the hard layers of the soil or make the weight rest on the solid rock in the layers . This transfer of the weight is done by the pile, which transfer the weight to the deep layers of the soil by passing the weaker layers of the soil . Pile foundation is also used for bridges and dams in the water or river beds .
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The decision and nature of the Pile Foundation is taken after the soil testing report , which is the first step before the construction of the vertical structure . The use of the pile foundation is increasing day by day as the land for the construction is declining . Also, the construction of high risings, means that load of these buildings has to be taken to the strong layer of the soil , as the top layer of the soil is not adequate to take the load of such high -rise buildings .
There have been advances in the technology of making piles and inserting them in the ground . A pile foundation generally has two components , the cap and piles , which may in single or in group . The pile is inserted to reach the hard part of the soil , so that the weight of the building or structure can be transferred that safe level .
The Bored Piles are made by digging up the hole and then filling the hole with concrete and steel rodes . The depth of the bored pile of pile foundation depends on the nature of the soil, its moisture level , its water table level and the change in moisture level in different seasons . Bored piles are used in urban areas, where the headroom is limited and there is minimal vibration . They are generally friction piles and transfer the weight of the structure to the deep part of the ground due to friction . Pile foundations are prefabricated piles .
