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What is the construction procedure of bored cast-in-situ concrete pile using rotary rigs?
Wiki User
∙ 12y ago
Shift and set the rig at the location of pile alredy surveyed. complete the boring to the required depth by attaching the boring assemblies with the rig. Flush the bore hole with bentonite solution. remove the boring assembly and insert the pre fabricated reinforcement cage. laping should be welded. set the reqiured length of tremmi pipe (dia not less than 200mm) and do flushing with new bentonite solution having density not more than 1.12. continue the flushing for atleast 30 minutes and check the density of liquid over flowing from the bore hole. if the density of it is 1.12 stop the flushing and pore the concrete stage by stage upto the cut off level.
thank you
Stephen, Silppi
Wiki User
∙ 12y ago
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