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Steel arch trolley suitable for tunnel micro-step excavation method

A steel arch and micro-step technology, applied in the field of tunnel steel arch installation equipment, can solve the problems of long installation time, high installation labor intensity, low installation safety, etc., and achieve the effect of saving working time

Pending Publication Date: 2019-01-18
RAILWAY NO 5 BUREAU GRP FIRST ENG CO LTD
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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a steel arch trolley suitable for the tunnel micro-step excavation method, which solves the problems of high installation labor intensity, low installation safety, long installation time, and affecting tunnel construction efficiency

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  • Steel arch trolley suitable for tunnel micro-step excavation method
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  • Steel arch trolley suitable for tunnel micro-step excavation method

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Embodiment Construction

[0019] 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.

[0020] see Figure 1-3 , the present invention provides a technical solution: a steel arch trolley suitable for the tunnel micro-step excavation method, comprising a trolley walking track 17, a platform 20 and a trolley frame 22, the trolley walking track 17 is formed by the walking The driving motor 19 is driven, and the driving method is hydraulic drive. The trolley walking track 17 can drive the trolley frame 22 to move as a whole. One side of the trolley f...

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Abstract

The invention discloses a steel arch trolley suitable for a tunnel micro-step excavation method. The trolley comprises a trolley walking crawler, a platform and a trolley frame. The bottom of the trolley frame is fixedly connected with the top of the trolley walking crawler. A longitudinal moving trolley is installed on the top of the trolley frame. A trolley lifting oil cylinder is installed at the bottom of the trolley frame. A longitudinal moving driving chain is fixedly connected with the bottom of the longitudinal moving trolley. The invention relates to the technical field of tunnel steel arch installation devices. According to the steel arch trolley, by installing the longitudinal moving trolley on the top of the trolley frame, the number of installation operators is greatly reduced, the semiautomatic installation construction of a steel arch is realized, and the construction intensity of the operators is reduced; by fixedly connecting ladder stands on the two sides of the surface of the platform, the installation position of the steel arch can be vertically fine adjusted, and other operation such as tunnel earlier-stage auxiliary construction except for the installation ofthe steel arch can be conducted.

Description

technical field [0001] The invention relates to the technical field of tunnel steel arch installation equipment, in particular to a steel arch trolley suitable for tunnel micro-step excavation. Background technique [0002] Steel arch support is a support measure that adopts section steel to strengthen the underground engineering. After the tunnel is excavated, in order to effectively restrain and control the deformation of the surrounding rock and strengthen the stability of the surrounding rock, some tunnels need to erect steel arches. And form a composite support with anchor rods, shotcrete, and steel mesh to protect and strengthen the strength and self-stabilization ability of the surrounding rock. Since the stability of the surrounding rock cannot meet the requirements of some tunnel excavations, it is necessary to carry out micro-step excavation on the tunnel. Due to the narrow working space on the upper steps and the current steel arch installation method cannot meet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/18E21D11/40
CPCE21D9/122E21D11/18E21D11/40
Inventor 刘翔钟东陈武林邓满林周湘祁海燕马鑫彭学军汤宇
Owner RAILWAY NO 5 BUREAU GRP FIRST ENG CO LTD
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