阅读说明：本技术 一种预制构件安装方法 (Prefabricated part installation method ) 是由 叶建荣 肖国微 胡小冲 黄孝斌 刘昕 肖敦苏 陈伟汉 李泽 叶娟 刘金涛 唐好春 于 2021-09-24 设计创作，主要内容包括：本发明公开了一种预制构件安装方法,在盾构管廊有限半圆形空间内,利用支架、平板车、电动葫芦和手动液压升高车等小型设备在有限狭小空间内快速安装大重量的预制构件,在一定程度上促进综合管廊工程施工技术的推广和应用,解决了预制构件安装施工效率低下的问题,又解决了安装施工过程中容易发生的安全问题。(The invention discloses a prefabricated part installation method, which is characterized in that a large-weight prefabricated part is quickly installed in a limited narrow space by utilizing small equipment such as a bracket, a flat car, an electric hoist, a manual hydraulic lifting car and the like in a limited semicircular space of a shield pipe gallery, so that the popularization and application of the construction technology of the comprehensive pipe gallery engineering are promoted to a certain extent, the problem of low installation and construction efficiency of the prefabricated part is solved, and the safety problem which is easy to occur in the installation and construction process is also solved.)

1. The utility model provides a prefabricated component installation method, includes the shield structure piping lane, the shield structure piping lane includes the shield structure pipe wall and sets up median septum in the shield structure piping lane, the shield structure pipe wall is formed with the shield space, the median septum will the shield structure space separation becomes two parts, its characterized in that includes following step:

s1: transporting the prefabricated parts to an installation location using a flat car;

s2: lifting and displacing the prefabricated parts from the flat car on the middle clapboard by using a manual hydraulic lifting car;

s3: installing two hoisting bolt heads on one side of the shield pipe gallery, and then installing steel wire ropes on the two hoisting bolt heads;

s4: hanging and fixing an electric hoist hook on the steel wire rope;

s5: the bottom of the prefabricated part is propped against by a support, and a lifting hook of the electric hoist is hung on a lifting hole of the prefabricated part;

s6: starting the electric hoist to slowly pull up one end of the prefabricated part, stopping the electric hoist after a preset position is reached, and temporarily supporting the prefabricated part by adopting the support;

s7: moving the manual hydraulic lifting vehicle to the middle of the prefabricated part, then slowly lifting the prefabricated part from the bottom by using a hanging strip, and adjusting the verticality and height of the prefabricated part;

s8: after the perpendicularity and the height of the prefabricated part are adjusted in place, the top of the prefabricated part and the tunnel wall are fixed on the embedded angle steel in a bolt welding mode, and the bottom of the prefabricated part is anchored in a steel bar welding mode.

2. The prefabricated part installation method according to claim 1, wherein: the support is triangular prism shape, the edge length of support is less than the construction headroom space.

3. The prefabricated part installation method according to claim 2, wherein: the support is made of steel pipes.

4. The prefabricated member installation method according to claim 3, wherein: the wall thickness of the steel pipe is more than or equal to 2.8mm, and the diameter of the steel pipe is more than or equal to 40 mm.

5. The prefabricated part installation method according to claim 2, wherein: the support comprises a vertical rod and a cross rod.

6. The prefabricated part installation method according to claim 1, wherein: and the rated lifting weight of the electric hoist is more than or equal to the weight of the prefabricated part.

7. The prefabricated part installation method according to claim 1, wherein: the breaking tension of the sling is more than twice of the weight of the prefabricated part.

8. The prefabricated part installation method according to claim 1, wherein: a plurality of wood purlin adjusting heights and increasing stress areas are arranged between the middle partition plate and the support.

9. The prefabricated member installation method according to claim 8, wherein: the adjustable drag support is arranged between the shield pipe gallery middle partition plate and the wood purlin between the supports and the vertical rod steel pipe of the supports.

Technical Field

The invention relates to the field of building construction engineering, in particular to a prefabricated part installation method.

Background

Along with the acceleration of the urbanization process of China, the underground utility tunnel engineering is constantly increased, wherein utility tunnel engineering has compartment structural design mostly, and for accelerating the construction speed, the compartment adopts full prefabrication or prefabrication + cast-in-place superimposed structure more. Due to the fact that the space in the comprehensive pipe gallery engineering is limited, and the related prefabricated parts cannot bear overweight loads, large machines such as a truck crane and a large loading vehicle cannot enter the construction, only small machines such as a flat car, a hydraulic lift truck and an electric hoist can be used for being installed in cooperation with manual work, existing equipment and corresponding installation and construction methods which can be directly adopted do not exist, the problem that the prefabricated parts are low in installation and construction efficiency is caused, and meanwhile safety problems are prone to occurring in the installation and construction process.

Disclosure of Invention

The invention aims to provide a prefabricated part mounting method for improving safety and mounting efficiency.

The technical scheme adopted by the invention is as follows:

the utility model provides a prefabricated component installation method, includes the shield structure piping lane, the shield structure piping lane includes the shield structure pipe wall and sets up median septum in the shield structure piping lane, the shield structure pipe wall is formed with the shield space, the median septum will the shield structure space separation becomes two parts, includes following step:

s1: transporting the prefabricated parts to an installation location using a flat car;

s2: lifting and displacing the prefabricated parts from the flat car on the middle clapboard by using a manual hydraulic lifting car;

s3: installing two hoisting bolt heads on one side of the shield pipe gallery, and then installing steel wire ropes on the two hoisting bolt heads;

s4: hanging and fixing an electric hoist hook on the steel wire rope;

s5: the bottom of the prefabricated part is propped against by a support, and a lifting hook of the electric hoist is hung in a lifting hole of the prefabricated part;

s6: starting the electric hoist to slowly pull up one end of the prefabricated part, stopping the electric hoist after a preset position is reached, and temporarily supporting the prefabricated part by adopting the support;

s7: moving the manual hydraulic lifting vehicle to the middle of the prefabricated part, then slowly lifting the prefabricated part from the bottom by using a hanging strip, and adjusting the verticality and height of the prefabricated part;

s8: after the perpendicularity and the height of the prefabricated part are adjusted in place, the top of the prefabricated part and the tunnel wall are fixed on the embedded angle steel in a bolt welding mode, and the bottom of the prefabricated part is anchored in a steel bar welding mode.

Has the advantages that: according to the prefabricated part installation method, in the limited semicircular space of the shield pipe gallery, the large-weight prefabricated parts are quickly installed in the limited narrow space by using small equipment such as the support, the flat car, the electric hoist and the manual hydraulic lifting car, so that the construction cost is saved, the safety of installation and construction personnel of the prefabricated parts is ensured, the popularization and application of the comprehensive pipe gallery engineering construction technology are promoted to a certain extent, the problem of low installation and construction efficiency of the prefabricated parts is solved, and the safety problem which easily occurs in the installation and construction process is also solved.

As the improvement of the scheme, the support is in the shape of a triangular prism, and the edge length of the support is smaller than the construction clearance space.

As an improvement of the scheme, the support is made of steel pipes.

As an improvement of the scheme, the wall thickness of the steel pipe is more than or equal to 2.8mm, and the diameter of the steel pipe is more than or equal to 40 mm.

As an improvement of the scheme, the support comprises a vertical rod and a cross rod.

As an improvement of the above scheme, the rated lifting weight of the electric hoist is equal to or greater than the weight of the prefabricated part.

As an improvement of the scheme, the breaking tension of the sling is more than twice of the weight of the prefabricated part.

As an improvement of the scheme, a plurality of wood purlin are arranged between the middle partition plate and the support to adjust the height and increase the stress area.

As an improvement of the scheme, an adjustable drag support is arranged between the wood balk arranged between the middle partition plate of the shield pipe gallery and the support and the vertical rod steel pipe of the support.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of the initial stage of erection of the prefabricated units according to the present invention;

FIG. 2 is a schematic diagram of the erection phase of the erection installation of the prefabricated parts according to the present invention;

FIG. 3 is a schematic diagram of the height and verticality adjustment of the prefabricated unit according to the present invention;

fig. 4 is a front view of the bracket.

Detailed Description

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as up, down, front, rear, left, right, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the invention, the meaning of a plurality of the terms is one or more, the meaning of a plurality of the terms is two or more, and the terms larger, smaller, larger, etc. are understood to include no essential numbers, and the terms larger, smaller, etc. are understood to include essential numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the invention, unless otherwise explicitly defined, terms such as setup, installation, connection, and the like are to be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the invention by combining the specific contents of the technical solutions.

The shield pipe gallery 9 comprises a shield pipe wall and a middle partition plate 8 arranged in the shield pipe gallery, the shield pipe wall is provided with a shield space, the middle partition plate 8 divides the shield space into two parts, the top 13 of the shield pipe gallery wall and the middle partition plate 8 form one part, and the bottom 14 of the shield pipe gallery wall and the middle partition plate 8 form the other part.

Referring to fig. 1 to 4, the invention relates to a prefabricated part installation method, which achieves the effect of quickly vertically installing a prefabricated part 5 by utilizing small-sized equipment such as a bracket 4, a flat car, an electric hoist 3, a manual hydraulic lifting car 12 and the like, and comprises the following specific implementation methods and steps:

s1: transporting the prefabricated parts 5 to the installation site using a flat car;

s2: lifting and displacing the prefabricated part 5 from the flat car on a partition plate 8 in the shield pipe gallery by using a manual hydraulic lifting car 12;

s3: installing two hoisting bolt heads 1 on one side of the shield pipe gallery, and then installing steel wire ropes 2 on the two hoisting bolt heads 1;

s4: the electric hoist 3 is hooked and fixed on the steel wire rope 2;

s5: the bottom of the prefabricated part 5 is propped against by the bracket 4, and a lifting hook of the electric hoist 3 is hung on a lifting hole of the prefabricated part 5;

s6: starting the electric hoist 3 to slowly pull up one end of the prefabricated part 5, stopping the electric hoist 3 after reaching a preset position, and temporarily supporting the prefabricated part 5 by adopting a support 4;

s7: moving the manual hydraulic lifting vehicle 12 to the middle of the prefabricated part 5, then slowly lifting the prefabricated part 5 from the bottom by using a lifting belt 6, and adjusting the verticality and height of the prefabricated part 5;

s8: after the perpendicularity and the height of the prefabricated part 5 are adjusted in place, the top of the prefabricated part 5 and the tunnel wall are welded and fixed on the embedded angle steel 7 through bolts 15, and the bottom of the prefabricated part 5 is welded and anchored through steel bars 16.

It is easily understood that the support 4 is a triangular prism shape, the edge length of the support 4 is smaller than a construction clearance space, the edge length of the support 4 is smaller than 300mm, the support 4 is made of a steel pipe 11, the wall thickness of the steel pipe 11 is larger than or equal to 2.8mm, the diameter of the steel pipe 11 is larger than or equal to 40mm, and the support 4 comprises a vertical rod 17 and a cross rod 18.

In some of these embodiments, the flatbed can adopt small-size flatbed, and support 4 can adopt self-control triangular steel pipe support, and self-control triangular steel pipe support adopts the steel pipe welding that construction is commonly used to form, and the shape is the triangular prism shape, and wherein, edge length can be decided according to the size in construction space, should slightly be less than the construction headroom to no more than 300 mm.

Referring to fig. 1, the rated lifting weight of the electric hoist 3 is greater than or equal to the weight of the prefabricated part 5, the breaking force of the lifting belt 6 is greater than twice the weight of the prefabricated part 5, a plurality of wood purlins 10 are arranged between the middle partition plate 8 and the support 4 of the shield pipe gallery to adjust the height and increase the stress area, and an adjustable support 19 is arranged between the wood purlins 10 arranged between the middle partition plate 8 and the support 4 of the shield pipe gallery and the vertical rods of the support 4.

Specifically, a plurality of long-strip-shaped wood purlins are locally adopted to adjust the height and increase the stress area, so that the effect of buffering and protecting the solid structure is achieved.

According to the prefabricated part installation method, in the limited semicircular space of the shield pipe gallery 9, the support 4, the electric hoist 3 of the flat car, the manual hydraulic lifting car 12 and other small-sized devices are used for achieving the effect of quickly vertically installing the prefabricated part 5. By using the method, the effect of quickly installing the large-weight prefabricated part 5 can be achieved in a limited narrow space, the construction cost is saved, the safety of installation and construction personnel of the prefabricated part 5 is ensured, and the popularization and application of the comprehensive pipe gallery engineering construction technology are promoted to a certain extent.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope of the claims of the present application.