Bore piles are the most popular and reliable deep foundation for heavy structures or less important or light structures founded on poor bearing strata. Bored piles
are cast on the construction site which is normally of the order of 50 meters
depth of drilling. The drilling depth and method is depending on the soil
condition which is determined from soil investigation and decide suitable
drilling technology. During boring there may have mis-alinement from the designed pile center.
Off centering of bored piles in the vertical direction shall not be more than 1 in 200 of the bored pile length.
If any completed bored pile exhibit larger offsets than the above values, the Contractor must carry out corrective measure or construct a new bored pile as dictated by the Engineer all under the Contractor's own expense.
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