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Fabricated protective arch frame for tunnel construction

A tunnel construction and assembly technology, applied in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of poor stability and durability, affecting use efficiency, poor applicability of support devices, etc., to achieve high stability and durability, guaranteeing Efficient use and strong applicability

Active Publication Date: 2019-01-25
NEIJIANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing support device has poor applicability. When different support heights are required, the height of the device cannot be adjusted quickly, and the existing support device adjustment device has poor stability and durability. At the same time, the existing support device has imperfect protection. The function is single, which may affect the protection and safety of the construction. The existing support device is difficult to disassemble and assemble, which affects the efficiency of use

Method used

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  • Fabricated protective arch frame for tunnel construction
  • Fabricated protective arch frame for tunnel construction
  • Fabricated protective arch frame for tunnel construction

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] see Figure 1-10 , in an embodiment of the present invention, an assembled protective arch frame for tunnel construction mainly includes a base 1, an adjustment frame, a limit mechanism and a support mechanism. The lower parts of the front and rear ends of the base 1 are fixedly connected with force plates 17, and the upper part of the base 1 is respectively rotatably equipped with a first strut 6 and a second strut 16, and the outer sides of the first ...

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Abstract

The invention discloses a fabricated protective arch frame for tunnel construction. The fabricated protective arch frame mainly comprises bases, an adjusting frame, limiting mechanisms and a supporting mechanism. Cross grooved rods are fixedly mounted in middles of bottom ends of the bases respectively, stress plates are fixedly connected to lower portions of front and rear ends of the bases, anda first supporting rod and a second supporting rod are rotationally mounted on the upper portion of each base. The limiting mechanisms externally sleeve upper portions of the first supporting rods andthe second supporting rods, the supporting mechanism is mounted between the two limiting mechanisms, a second rotating sleeve is mounted on the lower portion of each second supporting rod, and a second rotating shaft is rotationally mounted on the inner side of each second rotating sleeve. The fabricated protective arch frame for tunnel construction is reasonable in structural design, high applicability is achieved, the device height can be quickly adjusted when different supporting heights are required, and high stability and durability are achieved; in addition, perfect protection and functional completeness are realized, and influences on protective safety are avoided; by prefabricated arrangement, use efficiency is guaranteed.

Description

technical field [0001] The invention relates to a tunnel protective arch, in particular to an assembled protective arch for tunnel construction. Background technique [0002] With the development of society, in order to improve the living standards of citizens, the country pays more and more attention to the construction of infrastructure. In infrastructure, road construction is the basis. However, our country has a vast territory, and it is extremely difficult to build roads in places with complex geographical environments. It is unavoidable to build bridges and open tunnels. my country’s tunnel construction technology is mature. During tunnel construction, when the tunnel body is excavated, the tunnel is prone to deformation and collapse with the release of surrounding rock stress. Therefore, timely initial construction support is required. The protection provides support to ensure construction safety and provide a reasonable working space. [0003] The existing support dev...

Claims

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Application Information

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IPC IPC(8): E21D11/18E21D11/24
CPCE21D11/18E21D11/183E21D11/24
Inventor 祝云华周丽
Owner NEIJIANG NORMAL UNIV
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