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Anti-deformation emergency supporting device for highway tunnel construction

A technology for road tunnels and support devices, which is applied in mining equipment, temporary shields, and earth-moving drilling, etc., can solve the problems of cumbersome installation process, time-consuming and labor-intensive, and reduce device stability, and achieve good support effects.

Active Publication Date: 2021-05-28
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing anti-deformation emergency support devices are basically installed on site, the installation process is cumbersome, time-consuming and labor-intensive, and the fixing effect of the device itself is poor, thereby reducing the stability of the device; there are also some automated support devices on the market that can automatically adjust the height , and then support the top surface of the tunnel, but they can only support a small range. The arc of the support plate on the support device is inconsistent with the arc of the tunnel top surface, and the support effect is not good.

Method used

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  • Anti-deformation emergency supporting device for highway tunnel construction
  • Anti-deformation emergency supporting device for highway tunnel construction
  • Anti-deformation emergency supporting device for highway tunnel construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see Figure 1 to Figure 6 , an anti-deformation emergency support device for highway tunnel construction, comprising a semicircular column 1, a base 14 and a steel plate 4, the semicircular column 1 is horizontally arranged, an electric push rod 2 17 is installed on the upper surface of the base 14, and the electric The upper end of push rod 2 17 is fixedly connected with semicircular column 1, and the outer side of described semicircular column 1 is provided with several support columns 2, and the front and rear ends of semicircular column 1 upper surface are all provided with several blinds. Hole 11, the side of blind hole 11 is slidingly connected with extension column 3, and the outer end of extension column 3 is connected with support column 2, and guide column 7 is all arranged between every two adjacent extension columns 3, and guide column 7 The lower end is connected with the semicircular column 1, and the outer side of the guide column 7 is provided with a gui...

Embodiment 2

[0035] see Figure 1 to Figure 6 , this embodiment is a further description of the anti-deformation emergency support device for highway tunnel construction described in Example 1. In this embodiment, several telescopic rods are connected between the semicircular column 1 and the base 14. Rod 16, the telescopic rod 16 is composed of a fixed sleeve 161 and a telescopic column 162, the lower end surface of the fixed sleeve 161 is fixedly connected with the upper surface of the base 14, the outer surface of the telescopic column 162 is connected with the inner surface of the fixed sleeve 161 The sides are slidingly fitted and connected, the upper end of the telescopic column 162 is fixedly connected with the bottom surface of the semicircular column 1, and the setting of the telescopic rod 16 makes the lifting of the semicircular column 1 more stable.

[0036] The bottom surface of described base 14 is equipped with four wheels 26, and four described wheels 26 are rectangularly d...

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Abstract

The invention discloses an anti-deformation emergency supporting device for highway tunnel construction. The anti-deformation emergency supporting device comprises a semicircular column, a base and a steel plate, wherein a second electric push rod is installed on the upper surface of the base, the upper end of the second electric push rod is fixedly connected to the semicircular column, a plurality of supporting columns are arranged on the outer side of the semicircular column, a plurality of blind holes are formed in the front end and the rear end of the upper surface of the semicircular column, extension columns are connected to the side faces of the blind holes in a sliding fit mode, the outer side ends of the extension columns are connected to the supporting columns, through grooves are formed in the side faces of the supporting columns, a steel plate penetrates through the through grooves, cushion pads are connected to the upper surface of the steel plate, an installing groove is formed in the center position of the upper surface of the semicircular column, and a first electric push rod is installed in the installing groove and connected to the supporting columns. Through arrangement of the semicircular column, the steel plates and the supporting columns, the height and radian of the steel plate can be automatically adjusted, then the cushion pads can make close contact with the top face of a tunnel in a larger range, and the supporting effect is good.

Description

technical field [0001] The invention relates to the technical field of tunnel support, in particular to an anti-deformation emergency support device for highway tunnel construction. Background technique [0002] The construction of the tunnel engineering will cause the deformation of the surrounding soil layer or soil and the change of the stress field, which will lead to the stress imbalance of the existing tunnel structure, and cause the tunnel structure to undergo local horizontal displacement, settlement, tension, compression and many other deformations. Once the above-mentioned deformation exceeds the bearing capacity of the tunnel structure, the tunnel structure will be destroyed. At this time, it is necessary to use an anti-deformation emergency support device. [0003] The existing anti-deformation emergency support devices are basically installed on site, the installation process is cumbersome, time-consuming and laborious, and the fixing effect of the device itself...

Claims

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Application Information

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IPC IPC(8): E21D19/00E21D19/06
CPCE21D19/00
Inventor 赵群张晓皖周林聪
Owner JILIN UNIV