Method for producing precast concrete piles

Abstract

The invention relates to a method for producing precast concrete piles, which comprises the following main steps of: manufacturing a reinforcement cage; placing the reinforcement cage into a die; pouring concrete into the die; centrifugally rotating; and carrying out steam curing. The method is characterized in that the die with the length of over 20 meters is adopted in the method; two or a plurality of precast concrete piles can be simultaneously produced by one die; upper and lower half dies of the die have a transporting mode of transversely moving in parallel in the direction vertical to the axis of a crane beam of a plant in the production process; and centrifugal equipment and a curing tank are transversely arranged in parallel in the direction vertical to the axis of the crane beam of the plant. Due to the adoption of the transverse flow production scheme of the long die, the production effect can be multiplied, the space occupied by the plant is greatly reduced, a great amount of lands are saved, the working efficiency is improved, and the production quality can be ensured.

Description

technical field [0001] The invention relates to a method for producing prefabricated concrete piles by horizontal flow operation of long molds over 20 meters in length. Background technique [0002] Various types of centrifugal concrete piles are often used in foundation engineering, and the existing manufacturing method of centrifugal concrete piles is to use a steel mold less than 15 meters, and one mold can only manufacture one centrifugal concrete pile over 10 meters at a time. According to The production method of prestressed high-strength concrete square piles described in Patent No. 200710068545.6 is also a simple evolution of the general tubular pile centrifugal process. The above-mentioned common process has many inherent defects, such as the pile body often hangs grout, exposed stones, and residual grout remains in the pile hole Among them, there are fatal problems such as the deviation of the main reinforcement, insufficient compactness, and serious internal delam...

AI Technical Summary

Problems solved by technology

[0002] Various types of centrifugal concrete piles are often used in foundation engineering, and the existing manufacturing method of centrifugal concrete piles is to use a steel mold less than 15 meters long, and one mold can only manufacture one centrifugal concrete pile of more than 10 meters at a time. According to The production method of prestressed high-strength concrete square piles described in Patent No. 200710068545.6 is also a simple evolution of the general tubular pile centrifugal process. The above-mentioned common process has many inherent defects, such as the pile body often hangs grout, exposed stones, and residual grout remains in the pile hole Fatal problems such as deviation of the main reinforcement, insufficient compactness, and serious internal delamination

Moreover, the production efficiency is low, a lot of energy is wasted, and the process production line occupies a lot of land, which does not conform to the national industrial development policy, and the labor intensity of the workers is high and unsafe

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