Production method of concrete pipe pile

Abstract

The invention discloses a production method of a concrete pipe pile. The method sequentially comprises the following steps of: (A) loading cage ribs required for producing a pipe pile into a mould, then closing an upper mould and a lower mould and tightening screws; (B) conveying a prepared concrete material into the cavity of the mould; (C) stretching the cage ribs in the mould and applying prestress; and (D) hanging the mould onto a centrifugal machine for centrifuging and molding. The method aims to overcome the defects in the prior art and provide a production method of a concrete pipe pile having simple process, convenient processing, relatively lower cost, stable product quality and higher production efficiency.

Description

technical field [0001] The invention relates to a method for producing concrete pipe piles. Background technique [0002] In the prior art, the sequence of producing concrete pipe piles is generally to install steel cages first, lay concrete materials, close molds, post-tension, and then centrifugally form. The concrete pipe piles produced by this method mainly have the following defects: [0003] 1. In terms of quality: the produced concrete pipe piles have the phenomenon of grout leakage at the joints and wide joints, etc. At the same time, the pipe piles are easy to be broken during construction and affect their service life; [0004] 2. In terms of equipment: when the steel mold is closed, it is difficult to close it tightly due to the falling of concrete particles, resulting in a large gap between the running wheels of the upper and lower molds, which causes the steel mold to jump when it is centrifuged, and damages the steel mold and the centrifuge; [0005] 3. In te...

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Problems solved by technology

[0006] 4. In terms of required labor force: when laying concrete, a large number of particles will fall, and personnel are required to clean up and insert them in time. At least 4 to 6 people are needed per shift to clean up these fallen concrete particles, which is a waste of manpower;