Manufacturing method of concrete precast pile

Abstract

The invention relates to a manufacturing method of a concrete precast pile, comprising the following steps of: concrete manufacturing; pile body steel reinforcement cage manufacturing; steam curing pool constructing; pile template preparing and erecting; steel reinforcement cage lifting and mold entering; prestress steel reinforcement cage stretching and drawing; template finishing; concrete casting, vibrating and surface finishing; steam curing; pile body concrete quality inspecting; pile lifting demolding; and template finishing correcting; the manufacturing method is characterized in that a steam curing pool consists of a steam pool bottom, a steam pool wall, an upstanding beam, a steam pool cover, a catch pit and a steam pipeline; a bottom template is paved on the upstanding beam of the steam pool bottom, a side template is vertically paved on one side of the bottom template, and the templates are erected in a sequence of a side template, a bottom template, a side template and a bottom template; and the manufacturing method has the characteristics of being suitable for large-scale industrialized production, good in universality of production technology, little in productive investment, high in efficiency, good in product quality, and the like.

Description

Technical field: [0001] The invention relates to a method for manufacturing a concrete prefabricated pile, which belongs to the technical field of building materials. Background technique: [0002] At present, the existing precast concrete piles are: precast concrete square pile, precast concrete rectangular pile, prestressed precast concrete square pile, prestressed precast concrete rectangular pile, centrifugal prestressed concrete pipe pile, centrifugal prestressed concrete hollow square pile Wait. The industrial method of its production has the following disadvantages: [0003] 1. The production of centrifugal precast concrete pipe piles and hollow square piles requires concrete centrifugal forming equipment, which requires large investment, complicated manufacturing process, and difficult control of pile quality. Limited by the process method, a pile of one specification can only correspond to one formwork, and the formwork utilization efficiency is low. [0004] 2. ...

AI Technical Summary

Problems solved by technology

[0003] 1. The production of centrifugal precast concrete pipe piles and hollow square piles requires concrete centrifugal forming equipment, which requires large investment, complicated manufacturing process, and difficult control of pile quality

Limited by the process method, a pile of one specification can only correspond to one formwork, and the utilization efficiency of the formwork is low

[0004] 2. For the production of centrifugal precast concrete pipe piles and hollow square piles, at most two piles can only be stretched together, which is less efficient

[0005] 3. The existing precast concrete square piles, precast concrete rectangular piles, prestressed precast concrete square piles, and prestressed precast concrete rectangular piles are mostly produced by prefabrication at the construction site. There is no steam curing equipment, the product quality level is poor, and the efficiency is low. Low

Formwork systems such as small steel formwork, wooden formwork, and bamboo plywood are mostly used, which are not suitable for large-scale industrial production, and the formwork turnover rate is low and uneconomical

[0006] 4. Most prestressed prefabricated piles use long-line tensioning tables, which can only stretch the entire prestressed steel bar from the beginning to the end. It is inconvenient to bind the steel cage and formwork support, and the quality of the pile is poor and the efficiency is low.

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