Temporary combined supporting device for tunnel fracture zone

Abstract

The invention belongs to the field of combined supporting equipment, and particularly relates to a temporary combined supporting device for a tunnel fracture zone. A same cross beam is fixedly mountedat the tops of two vertical plates at the top of a base; a supporting seat is fixedly mounted in the center of the top of the cross beam; the top of a vertical shaft of the inner wall of the top of the supporting seat penetrates through the inner wall of the top of the supporting seat and extends to the position above the supporting seat; a main arc-shaped plate is rotationally mounted at the topof the vertical shaft; a supporting component is arranged at the bottom of the vertical shaft; and side face arc-shaped plates are hinged to the two sides of the main arc-shaped plate; the two side face arc-shaped plates are concentric with the main arc-shaped plate; top storage chambers of the cross beam are located on the two sides of the supporting seat correspondingly; a same push plate is mounted on the inner walls of the two sides of each storage chamber in a sliding mode; storage components are rotationally arranged at the tops of the two push plates correspondingly; and the tops of the two storage components are rotationally connected with the bottoms of the two side face arc-shaped plates correspondingly. The problems that a primary supporting device occupies larger space and iscomplex to carry in practical application are solved.

Description

technical field [0001] The invention belongs to the field of combined support equipment and relates to a temporary combined support device for a tunnel broken zone. Background technique [0002] During tunnel construction, it is necessary to determine the length of each longitudinal excavation according to the specific conditions of the rock mass in advance, that is, the entire tunnel is divided into multiple sections of tunnel passages to be excavated sequentially; during construction, the first section of tunnel passage is first excavated according to the excavation length, and then Implement support in this first section of tunnel passage, after completion, continue to excavate the second section of tunnel passage along the longitudinal direction from the end of the first section of tunnel passage, implement support on the second section of tunnel passage, after completion, then At the end of the second section of tunnel passage, a third section of tunnel passage is excav...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to solve the problem that in the initial support device in practical application, since the bracket takes up a relatively large space, it is complicated to transport the bracket in the tunnel, and it is easy to hit the rock wall during the transportation process, causing the rock wall to collapse and the bracket to be damaged. To solve the problem of damage, provide a temporary combined support device for the tunnel fracture zone

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