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High-stability tunnel support device

A support device and stability technology, which is applied in the field of tunnel support devices, can solve problems such as economic loss, tunnel collapse, and poor support stability, and achieve the effects of strong reliability, novel design, and increased firmness

Inactive Publication Date: 2019-08-20
HEBEI PROVINCIAL COMM PLANNING & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Tunnel is an engineering building buried in the ground, and it is a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, and mine tunnels. The structure of the tunnel includes two main buildings and auxiliary equipment. part, the main building is composed of the tunnel body and the tunnel door, and the auxiliary equipment includes car shelters, fire-fighting facilities, emergency communication and waterproof and drainage facilities. The long tunnel also has special ventilation and lighting equipment. The excavation disturbance of the tunnel will cause relatively large Large surrounding rock deformation, if the support measures are not in place, the surrounding rock deformation may exceed its allowable range, and in severe cases, it will cause tunnel collapse and cause major economic losses
[0003] In order to realize the support of the tunnel, various support devices have been designed, but the outermost sides of the existing support devices are all supported by the arch frame of the overall structure. In the actual use process, the inner wall of the tunnel may not be completely arc-shaped. shape, the arch frame cannot be fully fitted on the inner wall of the tunnel, resulting in poor support stability

Method used

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Embodiment 1

[0022] see figure 1 , 3 , 4 and 5, in an embodiment of the present invention, a tunnel support device with high stability includes a first arched support 1, a second arched support 3 and a door-shaped support 4; the first arched The support 1, the second arch support 3 and the door-shaped support frame 4 are all installed on the mounting plate 7, and the first arch support 1, the second arch support 3 and the door-shaped support frame 4 are sequentially arranged from outside to inside Set, the first arch support 1 includes a plurality of arc-shaped frame plates 101 that abut against each other, and the inner side of the arc-shaped frame plates 101 is provided with a movable cavity 103 for the sliding placement of the elastic plate 102, and the two elastic plates 102 The two elastic plates 102 in one movable cavity 103 are connected by a spring 104, so that when the side wall of the tunnel is not completely arc-shaped, the arc The shaped frame plate 101 can be adjusted relati...

Embodiment 2

[0028] see figure 2 , in order to further improve the supporting effect of the second arched bracket 3, the present invention also proposes another embodiment to improve the application, specifically, the inner side of the second arched bracket 3 is hinged with the second hydraulic pressure The jack 11 is hinged to the outside of the door-shaped support frame 4, and the second hydraulic jack 11 can be used to adjust the supporting force of the second arched support 3 according to the actual situation, which is practical.

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Abstract

The invention relates to the technical field of support equipment, in particular to a high-stability tunnel support device. The high-stability tunnel support device comprises a first arc-shaped bracket, a second arc-shaped bracket and a portal support frame which are all installed on an installation plate and arranged front exterior to interior in sequence; the first arc-shaped bracket comprises aplurality of arc-shaped frame plates which abut against one another, and the inner sides of the arc-shaped frame plates are provided with moving cavities which are used for allowing elastic plates tobe placed slidably; and the two ends of each elastic plate are located in the moving cavities of the inner sides of every two adjacent arc-shaped frame plates, and the two elastic plates in each moving cavity are connected through a spring. The high-stability tunnel support device is novel in design, the first arc-shaped bracket is arranged in a split mode and movably connected through the elastic plates, when the side wall of a tunnel is not completely arc, the arc-shaped frame plates can be relatively adjusted and cooperate with the elastic plates to achieve the effect that the arc-shaped frame plates are completely attached to the wall of the tunnel, the support firmness is improved, and the reliability is high.

Description

technical field [0001] The invention relates to the technical field of support equipment, in particular to a tunnel support device with high stability. Background technique [0002] Tunnel is an engineering building buried in the ground, and it is a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, and mine tunnels. The structure of the tunnel includes two main buildings and auxiliary equipment. part, the main building is composed of the tunnel body and the tunnel door, and the auxiliary equipment includes car shelters, fire-fighting facilities, emergency communication and waterproof and drainage facilities. The long tunnel also has special ventilation and lighting equipment. The excavation disturbance of the tunnel will cause relatively large For large surrounding rock deformation, if the support measures are not in place, the surrounding rock deformation may exceed its allowable range, and in severe c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/14E21D11/18E21D11/30
CPCE21D11/14E21D11/18E21D11/183E21D11/30
Inventor 高岭曹正波张举智李炜冯明月马壮李建朋张红强梁敬轩母焕胜
Owner HEBEI PROVINCIAL COMM PLANNING & DESIGN INST