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Grid steel frame, grid steel frame trial assembling device and grid steel frame manufacturing method

A technology of grid steel frame and trial assembly, which is applied in auxiliary devices, shaft equipment, earthwork drilling and mining, etc., can solve the problem of insufficient support strength of grid steel frame, low qualification rate of grid steel frame, and inconvenience of grid steel frame Installation and construction, etc., to achieve the effect of flexible construction method, stable structure and strong bearing capacity

Pending Publication Date: 2018-08-28
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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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 to provide a grid steel frame, a grid steel frame trial assembly device and a grid steel frame manufacturing method, so as to solve the inconvenient installation and construction of the grid steel frame in the tunnel and the grid steel frame in the prior art. The technical problems of insufficient support strength of the steel frame, slow production speed of the grid steel frame and low qualified rate of the grid steel frame

Method used

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  • Grid steel frame, grid steel frame trial assembling device and grid steel frame manufacturing method
  • Grid steel frame, grid steel frame trial assembling device and grid steel frame manufacturing method
  • Grid steel frame, grid steel frame trial assembling device and grid steel frame manufacturing method

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Embodiment 1

[0055] Please also refer to Figure 1 to Figure 8 .

[0056] The grid steel frame provided by the embodiment of the present invention includes a plurality of grid modules, and each grid module is arc-shaped. 180° camber type. Such as figure 1 As shown, the grid modules in the grid steel frame in this embodiment include three first grid modules 11 located in the middle of the grid steel frame and connected in sequence, and two second grid modules 11 respectively located on both sides of the grid steel frame. Grid modules 12, the specifications of the first grid module 11 are the same, and its radian is 37°; °The two ends of the arc-shaped arched grid steel frame can be supported on the ground of the tunnel, which is beneficial to enhance the bearing capacity of the grid steel frame. The radius R of the grid steel frame is 7 meters. During actual processing and production, the radius R of the grid steel frame is determined according to the radius measurement of the surroundi...

Embodiment 2

[0063] Please also refer to Figure 9 to Figure 11 .

[0064] Such as Figure 9 As shown, the grid steel frame trial assembly device provided by the embodiment of the present invention includes 15 pedestals 21, and the 15 pedestals 21 are arranged in an arc corresponding to the grid steel frame in Example 1. Each of the pedestals in Example 1 One grid module corresponds to three pedestals 21 as supports, and by placing each support unit corresponding to the grid steel frame on the pedestal 21, the grid steel frame trial assembly device can be used for trial assembly of the grid steel frame in Example 1 The bracket units corresponding to each grid module can be used to check whether the bracket units corresponding to different grid units of the produced grid steel frame can be assembled into a semicircle. If they can be assembled into a semicircle, it indicates that each bracket If the unit is qualified, if it cannot be assembled into a semicircle, the corresponding bracket u...

Embodiment 3

[0069] Please also refer to Figure 12 to Figure 15 .

[0070] Such as Figure 12 As shown, the grid steel frame manufacturing method provided by the embodiment of the present invention specifically includes the following steps:

[0071] S10: Processing raw materials, making main bars, 8-shaped bars and connecting plates;

[0072] S20: making a bracket unit corresponding to each grid module;

[0073] S30: Trial assembling the bracket units corresponding to each grid module.

[0074] Specifically, such as Figure 13As shown, the grid steel frame manufacturing method first inspects the raw materials, these raw materials include the steel bars used to make the main bars, the steel bars used to make the 8-shaped bars and the angle steel used to make the connecting plates, and the raw materials that pass the inspection can be The unqualified raw materials will enter the unqualified treatment process, and the unqualified treatment includes scrapping, or used in other occasions ...

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Abstract

The invention discloses a grid steel frame, a grid steel frame trial assembling device and a grid steel frame manufacturing method. The grid steel frame comprises a plurality of grid modules, the gridmodules are of cambered surface shape, each grid module is composed of a plurality of bracket units connected in front and rear, the left and right sides of each grid module are assembled into the grid steel frame, the grid steel frame is generally of 180-degree cambered surface shape, and when the grid steel frame is installed in a tunnel, the grid steel frame can be easily installed at the topof the tunnel as a support. The grid steel frame trial assembling device comprises a plurality of pedestals, the pedestals are arranged in an arc shape corresponding to the grid steel frame, left limit baffles and right limit baffles of each of the pedestals form an arc-shaped passage corresponding to the grid steel frame, whether or not the bracket units assembled together can be matched with thearc-shaped passage is observed to check whether the manufactured bracket units are qualified, and the qualification rate of the manufactured bracket units can be ensured.

Description

technical field [0001] The invention relates to the technical field of tunnel support steel frames, in particular to a grid steel frame, a trial assembly device for the grid steel frame and a manufacturing method for the grid steel frame. Background technique [0002] A railway tunnel is a building built underground, in a cave or underwater and laid with railways for the passage of rolling stock. According to its location, it can be divided into three categories: mountain tunnels that pass under mountains or hills to shorten distances and avoid large slopes; underwater tunnels that pass under rivers or seabeds to cross rivers or straits; In order to meet the needs of railways passing through large cities, they are called urban tunnels that pass underground in cities. Among these three types of tunnels, mountain tunnels are the most built. In recent years, with the continuous development of domestic railway construction, mountain tunnel construction projects have increased d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/18B23K37/04B23P15/00
CPCE21D11/18B23K37/04B23P15/00
Inventor 董俊锋周睿陈凌王乐乐
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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