A prestressed pile 3D printing system and its application method

Abstract

The invention discloses a 3D printing system for prestressed piles and an application method thereof. The 3D printing system comprises a material supply device, a printing device, a printing shifting device and a precast pile shifting device. A continuous whole pile with a corresponding length can be designed and manufactured according to site practical engineering requirements; the technical problems of pile splicing and pile truncating in the construction process are avoided; and the quality and the load-carrying property of the whole pile are guaranteed. At the same time, the phenomena that the section form of the prestressed pile is single, and pile body section materials are not uniform and the pile side wall is smooth in the construction process of the prestressed piles manufactured through a conventional centrifugation method are avoided. Not only is the pile foundation load-carrying property improved, but also the 3D printing technology adapts to the pile foundation construction process.

Description

technical field [0001] The invention relates to a prefabricated pile manufacturing technology, in particular to a prestressed pile 3D printing system and its use method, which are mainly applicable to technical fields such as pile foundation engineering. Background technique [0002] Prestressed reinforced concrete piles have high single pile bearing capacity, strong and durable structure, are not affected by groundwater and humidity changes, fast construction speed, high efficacy, short construction period, and can be made into various cross-sections and lengths according to needs. It is widely used in pile foundation engineering due to its advantages. Prestressed reinforced concrete piles can be divided into solid piles and tubular piles. For the convenience of production, prestressed solid piles are mostly made of square section, while prestressed pipe piles are made by centrifugal method. Formwork is required to make prestressed piles by centrifugal method, and the cro...

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Problems solved by technology

[0005] Purpose of the invention: In order to overcome the deficiencies in the existing technology, a prestressed pile 3D printing system and its application method are proposed, which solves the problem of the inconsistency between the length of the prestressed pile body printed in the prior art and the actual design pile length, and the prestressed pile. The section form of the pile is single, and the centrifugal method makes the prestressed pile the inconsistency of the section material and the low surface friction coefficient. The pile length is designed according to the actual needs at the construction site, and the prestressed pile of the corresponding length is made through 3D printing technology to solve the problem of conventional prestressed piles. For the problems of connecting and cutting piles in the construction process of stress piles, prestressed piles or expanded diameters of various cross-sectional forms can be produced, such as square piles, round piles, pipe piles, X-shaped piles, wedge piles, threaded piles, bamboo piles, etc. Section piles and disc piles, etc., overcome the problem of inconsistent cross-section materials caused by centrifugal technology, and rough pile side walls can effectively improve pile side friction

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