Secondary precise leveling device and method of underground space prefabricated member

A prefabricated component and underground space technology, applied in the direction of infrastructure engineering, construction, etc., can solve the problems of pile top elevation dislocation and pile top elevation that cannot be adjusted again, and achieve large market promotion and application value, simple structure, and convenient The effect of the operation

Active Publication Date: 2017-03-22
SICHUAN INSITITUTE OF BUILDING RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is the technical problem that the elevation of the pile top cannot be adjusted again before the assembly and construction of some underground nodes. The leveling backing plate is used to level the contact part of the prefabricated components and the bottom hole bottom cushion, and the pile top leveling gasket is used to perform secondary precise leveling of the top elevation of the prefabricated components, which solves the problem of pile tops before assembly of some underground nodes. Elevation dislocation can not be adjusted again and other issues

Method used

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  • Secondary precise leveling device and method of underground space prefabricated member
  • Secondary precise leveling device and method of underground space prefabricated member

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Effect test

Embodiment 1

[0046] Such as figure 1 , figure 2 As shown, the present invention is a secondary precision leveling device for prefabricated components in underground space, including the initial leveling plate at the bottom of the pile and the leveling gasket at the top of the pile located in the prefabricated pile hole, the upper end of the initial leveling plate at the bottom of the pile is provided There are prefabricated components, and the upper end of the prefabricated components is provided with a pile top leveling gasket for secondary adjustment of the pile top elevation.

[0047] The prefabricated component 2 described in this embodiment includes prefabricated piles and prefabricated beams, which are arranged on the upper end of the leveling pad 3 at the bottom of the pile, and the initial leveling pad 3 at the bottom of the pile is used to reduce the top of the cushion 4 at the bottom of the hole. The height difference between the surface elevation H2 and the design pile bottom ...

Embodiment 2

[0051] This embodiment is further limited on the basis of Embodiment 1, the thickness of the initial leveling backing plate 3 at the pile bottom is greater than or equal to the thickness of the pile top leveling pad 1, here the initial leveling backing plate 3 at the pile bottom, the pile top The specifications of the leveling pad 1 are limited. The specific structure of both can be a steel plate structure, but according to the installation position of the two, the leveling deviation required to be achieved is different. The thickness of the initial leveling pad 3 at the pile bottom is greater than or equal to the pile The thickness of the top leveling gasket 1 and the initial leveling plate 3 at the bottom of the pile mainly realize the initial leveling between the cushion layer 4 at the bottom of the hole and the connection end of the prefabricated component 2, while the pile top leveling gasket 1 is installed on the prefabricated After component 2, the pile top leveling gask...

Embodiment 3

[0053] This embodiment is further limited on the basis of the above-mentioned embodiments, the pile bottom preliminary leveling backing plate 3 is formed by connecting a plurality of backing plates with bolts, and at least two bolt holes 6 are symmetrically provided on the backing plate. The inner surface of the bolt hole 6 is provided with an internal thread, which facilitates the connection between the backing plates by bolts, and at the same time realizes the adjustment of the number of backing plates, thereby simultaneously adjusting the thickness of the backing plate 3 for the initial leveling of the pile bottom, and can be quickly leveled , reduce the height difference between the top surface elevation H2 of the hole bottom cushion and the design pile bottom elevation H3, and avoid the possibility that prefabricated components cannot be assembled due to excessive height differences.

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Abstract

The invention discloses a secondary precise leveling device of an underground space prefabricated member. The secondary precise leveling device comprises a pile bottom initial leveling base plate located in a prefabricated pile hole, and a pile top leveling spacer. The prefabricated member is arranged at the upper end of the pile bottom initial leveling base plate. The pile top leveling spacer used for conducting secondary adjustment on the pile top elevation is arranged at the upper end of the prefabricated member. The invention further discloses a secondary precise leveling method of the underground space prefabricated member. A hole bottom cushion layer and the prefabricated member are adjusted for the first time by installing the pile bottom initial leveling base plate, the height difference between the top elevation H4 of the initial leveling base plate and the designed pile bottom elevation H3 is smaller than or equal to 10 mm, and the pile top leveling spacer is installed at the top of the prefabricated member, so that the height difference between the top elevation H7 of the pile top leveling spacer and the beam bottom elevation H6 meets the height difference installation deviation requirement of a prefabricated beam. According to the leveling method of the technical scheme, accurate assembly and construction of the prefabricated member in the underground space can be achieved rapidly, and adjustment can be achieved again specific to the pile top elevation dislocation before joint assembly and construction.

Description

technical field [0001] The invention relates to the technical field of leveling prefabricated components, in particular to a secondary precise leveling device and method for prefabricated components in an underground space. Background technique [0002] With the rapid development of social economy, my country's urbanization process is accelerating, and problems such as the shortage of urban space have become increasingly prominent, seriously restricting the further development of cities. Therefore, more and more cities are turning underground to seek more development space. In the development process of underground space, since the pile-column integrated component combines the functions of the middle pile of the building foundation and the function of the middle column of the superstructure, its application is also increasing. Since the State Council issued the "Building Green Action Plan", prefabricated buildings have developed rapidly, especially the development of node co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D35/00
CPCE02D35/00
Inventor 马杰何开明
Owner SICHUAN INSITITUTE OF BUILDING RES
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