Multilateral mould of site precast concrete pile and manufacturing method of precast concrete pile

Abstract

The invention provides a multilateral mould of a site precast pile. The multilateral mould is composed of a bottom formwork, lateral formworks and end formworks. The bottom formwork is a long strip made by steel and with certain height and width, the top face of the long strip is a plane, and the top face forms the bottom edge of the module after the bottom formwork is horizontally arranged. Each lateral formwork is composed of multiple same single formwork bodies which are pressed to be in a multi-row shape through a steel board. The outer edge wind plates of all the single formwork bodies and the bottom formwork are connected to form the double lateral formworks, and then the left and right sides of the mould are formed; the end formworks are in a polygonal shape and fixed to the two ends of the lateral formworks, and the multilateral mould with an upper opening where concrete is poured is formed. The invention further discloses a manufacturing method of the precast pile. The manufacturing method comprises the steps that 1, the bottom formwork is arranged, and a reinforcement cage is arranged on the bottom formwork; 2, the lateral formworks and the end formworks are installed on the bottom formwork to form the multilateral mould; 3, concrete is poured from the mould opening and is vibrated and compacted; 4, the concrete is maintained; and 5, the multilateral mould is detached, and a multilateral precast concrete pile body is obtained.

Description

technical field [0001] The invention relates to pile foundation construction in the field of civil engineering, in particular to a mold for making a prefabricated concrete pile at a construction site and a manufacturing method thereof. Background technique [0002] Prefabricated piles are one of the pile types commonly used in the field of construction in my country, mainly including concrete square piles, prestressed concrete pipe piles, steel piles, etc. Problems such as shrinkage and broken piles of cast-in-place concrete pile foundations. However, since prefabricated piles need to be manufactured in the factory, require special machinery and equipment, and have a long maintenance period, plus the transportation costs from the factory to the construction site, the construction cost of prefabricated piles is significantly higher than that of cast-in-place concrete piles. Moreover, the specifications and varieties of prefabricated piles produced by the factory are less, and...

AI Technical Summary

Problems solved by technology

However, because prefabricated piles need to be manufactured in the factory, special machinery and equipment are required, and the maintenance period is long, plus the transportation costs from the factory to the construction site, the construction cost of prefabricated piles is significantly higher than that of cast-in-place concrete piles

Moreover, the specifications and varieties of prefabricated piles produced by the factory are less, and the prefabricated piles required by many projects need to be lengthened or shortened again at the construction site, which virtually increases the process, prolongs the construction period and increases the cost.

At the same time, the steel bars in the current finished prefabricated piles are contained in the concrete. Therefore, when it needs to be connected with the cap beam in the later stage of construction, it is necessary to make various metal components and steel bars to connect and fix the pile body and the cap beam steel bars. Reduce work efficiency and increase cost

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