Well piece prefabricated assembly type circular open caisson and preparation method thereof

Abstract

The invention provides a well piece prefabricated assembly type circular open caisson. The well piece prefabricated assembly type circular open caisson is formed by stacking and enclosing a plurality of circular well sections from bottom to top; wherein the well section is formed by arranging a first well piece which is unfolded into a rectangle or a square, a second well piece which is unfolded into a right trapezoid and a third well piece which is unfolded into an isosceles trapezoid, so that vertical seams between the upper and lower adjacent well pieces are arranged in a staggered manner; the left edge and the right edge of the well section are vertical straight lines. The method has the advantages that due to the specific structure of the well piece, the size of the prepared well piece is greatly reduced, the weight is greatly reduced, the well piece prefabricating, transporting and hoisting difficulty is reduced, and the well body finished product quality is high.

Description

technical field [0001] The invention relates to the technical field of municipal engineering, in particular to a well slice prefabricated circular caisson and a preparation method thereof. Background technique [0002] With the further improvement of my country's urbanization rate, pipeline engineering in municipal engineering has been vigorously developed. Pipeline engineering consists of inspection wells and interval pipe sections, and the shape of inspection wells is mostly circular. Caisson is a commonly used well construction method. Traditional caissons generally adopt the cast-in-place reinforced concrete type. This type needs to bind steel bars on site, erect formwork, pour concrete, and then sink after curing reaches the design strength of the concrete. It has the disadvantages of long construction period, great impact on the surrounding environment, serious waste of circular well formwork, and high cost of human resources. [0003] The Chinese patent of "An Asse...

AI Technical Summary

Problems solved by technology

This type needs to bind steel bars on site, erect formwork, pour concrete, and sink after curing reaches the design strength of the concrete. It has the disadvantages of long construction period, great impact on the surrounding environment, serious waste of circular well formwork, and high cost of human resources.

[0003] The Chinese patent of "An Assembled Caisson Facilitating Construction" (Authorized Notification No. CN 212926124 U) has been retrieved. The main defects of this patent are: the single section of a circular caisson has a large dead weight, and the requirements for prefabrication, transportation and hoisting are high; There is no water stop between the upper and lower sections; the rigidity and strength of the spike ring of the blade toe are weak, and the spike ring is easy to break when the caisson sinks

[0004] The Chinese patent of "Prefabricated caisson that is convenient for construction" (authorized announcement number CN 213539029 U) has been retrieved. The main defects of this patent are: there is no water stop between the upper and lower joints; The longitudinal seams are not staggered, and the overall stability is poor

[0005] The Chinese patent "A Prefabricated Caisson and Its Construction Method" (Authorized Notification No. CN 110952581 B) has been retrieved. The main defect of this patent is: the single section of a circular caisson has a large dead weight, and the requirements for prefabrication, transportation and hoisting high

[0006] The Chinese patent of "A Fabricated Caisson Structure and Its Installation Method" (Authorized Notification No. CN 113389213 A) has been retrieved. The main defect of this patent is: the single section of a circular caisson is composed of many well slices, and the integrity is poor; Each well has a steel sheet pile, which consumes a large amount of steel

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