Tremie Pipe is
important element of Bored pile construction process. Tremie pipe system is
applied to deliver the concrete from the bucket and hopper to the bottom of the
pile. Requirements for Tremie pipe are as below:
- The type of tremie
pipe together with sizes, pipe connection, length and other relevant
information must be submitted to the Engineer for approval.
- Every sections of
the pipe must be labeled in order to make it easier to check pipe lengths while
connecting or removing pipes.
- Tremie pipe must be
in good condition and easy to connect and disconnect as well as being tight
enough to prevent water seepage.
- The Engineer shall
have the authority to prohibit the use of a tremie pipe that appear to be
defective. Any additional expense brought about by this replacement shall be
the responsibility of the Contractor.
- Sufficient number of
spare tremie pipes must be available, and ready for use when necessary.
- While pouring
concrete, tremie pipe must remain submerged within the concrete at least 2
meters, and must be moved frequently to prevent sticking to concrete. The tip
of tremie pipe must remain submerged in the concrete while removing portions of
tremie pipe to prevent bentonite slurry from entering the tremie pipe.
- Equipment to be used
to pump out the bentonite slurry from tremie pipe must be approved prior to
usage.
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