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Large-scale component jacking method

A large component and jacking technology, applied in the direction of lifting devices, etc., can solve the problems of high foundation requirements, poor safety, low efficiency, etc., and achieve the effect of large bearing area and reduced requirements

Inactive Publication Date: 2009-08-19
钟爱民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that large-scale components adopt the traditional hydraulic jack lifting method, the load at the lifting point is concentrated, the requirements for the foundation are high, the construction is difficult, the disadvantages are high cost, low efficiency, and poor safety.

Method used

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  • Large-scale component jacking method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, such as figure 1 , 2 As shown, in the prefabricated site of a large concrete component, two airbag grooves 5 are set on the working platform (prefabricated platform) 2, and a plurality of airbag grooves 5 can also be set according to the specifications and weight of the component 1. The airbag grooves 5 are very long and can be Through a plurality of prefabricated platforms 2 , the airbag groove 5 is provided with a cover plate groove 6 and a cover plate 3 , and the airbag 4 penetrates into the space below the cover plate 3 . The height of the airbag groove 5 is 150mm, and the cover plate is made of reinforced concrete with a thickness of 250mm. The length of the airbag 4 is basically equal to the length of the jacking part of the component 1, preferably shorter by 200mm to 800mm, and the active area of ​​the airbag 4 accounts for 15% of the bottom area of ​​the component 1. The airbag groove foundation 7 and the prefabricated platform 2 can be prefabricate...

Embodiment 2

[0029] Example 2, such as image 3 As shown in the figure, on the site of manufacturing steel structure parts, the supporting pads 8 are placed on the working platform 2, and the space for jacking the airbag 4 is reserved between the supporting pads 8, and the assembly of the steel structural parts 1 is carried out on the supporting pads 8 welding. After completion, several airbags 4 are penetrated into the reserved positions under the component 1. The active area of ​​the airbags 4 accounts for 45% of the bottom area of ​​the component 1. The lifting of the component 1 is carried out, and the operation is very convenient. The airbags 4 are in flexible contact with the component. , will not cause deformation and damage to components.

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Abstract

The invention relates to a method for hoisting a large-sized component through air bags. The method is characterized in that the lower side of the component is provided with two or more than two air bags, and the air bags are charged with air or water to hoist the component. The action areas of the air bags occupy 10 to 45 percent of the bearing load areas of the component bottom. The method aims to solve the technical problems that the large-sized component adopts the conventional hoisting method of a hydraulic jack, the hoisting point load is centralized, and the prior method has the disadvantages of high base requirements, large construction difficulty, high cost, low efficiency and poor safety. The invention provides the technical method for hoisting the large-sized component through the air bags to replace the prior hoisting method of the hydraulic jack and makes use of the characteristics of large air bag bearing area and dispersed load to greatly reduce the requirements on base load force, ensure that the hoisted objects are not damaged and meet the jacking requirements of various ultra-large size components.

Description

technical field [0001] The invention relates to a method for lifting a large component by an airbag, which belongs to the technical field of object lifting. Background technique [0002] The jacking of present large components is generally realized by hydraulic jacks or mechanical jacks. In modern construction, the volume and weight of components are getting larger and larger, such as caissons for ports, water outlets for power stations, box culverts, bridges, ships, drilling platforms, etc. These components weigh thousands of tons or even tens of thousands of tons. If the traditional jacking method is used, several jacking points must be arranged. Since the load at the jacking point is very concentrated, the load per square meter will reach hundreds of tons, and the requirements for the foundation are very high, especially in poor geological conditions. Areas where construction is difficult, cost is high, efficiency is low, and safety is poor. Large-scale prefabrication pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F11/00
Inventor 钟爱民
Owner 钟爱民
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