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Supporting device for tunnel excavation

A support device, tunnel excavation technology, applied in the direction of tunnel, tunnel lining, shaft equipment, etc., can solve problems such as distortion and deformation, tunnel collapse, etc.

Pending Publication Date: 2021-07-27
CHINA FIRST HIGHWAY ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing patent number is CN201910492830.3, which discloses a high-stability tunnel support device, including a first arch bracket and an elastic plate, which is used to solve the problem of arc-shaped frame plates when the side walls of the tunnel are not completely arc-shaped. It can be adjusted relative to the elastic plate to realize the complete fit between the arc-shaped frame plate and the tunnel wall to increase the firmness and reliability of the support. However, this structure is prone to distortion and deformation when encountering shock waves generated by earthquakes. situation, it is easy to lead to the collapse of the tunnel

Method used

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  • Supporting device for tunnel excavation
  • Supporting device for tunnel excavation
  • Supporting device for tunnel excavation

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Embodiment Construction

[0038] The technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the drawings in the embodiment of the application. In the description of the application, it should be understood that the terms "upper", "lower", "front ", "back", "left", "right", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present application and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

[0039] This embodiment provides a support device for tunnel excavation, including a movable support part and a fixed support part, the fixed support frame is pro...

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Abstract

The embodiment of the invention discloses a supporting device for tunnel excavation, and relates to the field of tunnel supporting equipment. The supporting device mainly aims to solve the problem that an existing supporting device for tunnel excavation is poor in shock resistance, the supporting device comprises a movable supporting part and a fixed supporting part, and a main body part is arranged in the fixed supporting part; the supporting device further comprises a first buffering mechanism, a second buffering mechanism and a third linkage assembly, the movable supporting part drives a first linkage assembly to slide along the surface of the fixed supporting part through longitudinal movement of a longitudinal movable part, and longitudinal impact force, from an earthquake, borne by the movable supporting part can be weakened; and a guide rail part can drive one end of a linkage part to transversely move along the guide rail part, longitudinal impact force borne by the movable supporting part can be converted into transverse supporting force for the fixed supporting part through the first linkage part, and a transverse moving part drives a second linkage assembly to rotate and slide along the main body part through transverse movement of the transverse moving part, and transverse impact force, from an earthquake, borne by the movable supporting part can be weakened.

Description

technical field [0001] The application relates to the technical field of tunnel support equipment, in particular to a support device for tunnel excavation. 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 cave body and the cave door. [0003] The existing patent number is CN201910492830.3, which discloses a high-stability tunnel support device, including a first arch bracket and an elastic plate, which is used to solve the problem of arc-shaped frame plates when the side walls of the tunnel are not completely arc-shaped. It can be adjusted relatively, and the elastic plate can be used to realize the complete fit between the arc-shaped frame plate and the tunnel wall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00
CPCE21D11/00E21D11/003
Inventor 王强王国靖纪鸿朋高飞刘帆杨武超
Owner CHINA FIRST HIGHWAY ENG
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