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Operation rack for tunnel supporting construction

A technology for workbenches and tunnels, applied in tunnels, tunnel linings, shaft linings, etc., can solve problems such as high failure rate and complex structure

Active Publication Date: 2021-07-06
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above technical problems, the present invention proposes a working platform for tunnel support construction to solve the problems of complex structure and high failure rate of tunnel support construction devices in the prior art

Method used

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  • Operation rack for tunnel supporting construction
  • Operation rack for tunnel supporting construction
  • Operation rack for tunnel supporting construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: as Figure 1~Figure 6 As shown, a workbench for tunnel support construction according to the present invention includes a mobile gantry 1, and the mobile gantry system is the main load-bearing part of the workbench. The mobile gantry 1 includes a door frame 11, and the door frame 11 includes pillar supports on both sides, beam supports on the top, and a roof laid on the beam supports, and a channel is formed at the bottom of the door frame 11, which can pass through the cantilever roadheader; The working platform saves the construction space, not only facilitates the passage of construction personnel and other equipment, but also facilitates the transportation of construction materials; the mobile gantry 1 is equipped with a concrete spraying device 2, a bolter device 3 and a steel arch assembly device , the concrete spraying device 2 is used to spray concrete to the tunnel wall for preliminary support, the bolter device 3 is used for bolt support, and the...

Embodiment 2

[0044] Embodiment 2: as figure 1 As shown, the top of the door frame 11 is provided with a mobile platform 12, and the mobile platform 12 includes a platform plate that is mobilely connected to the top of the door frame 11, and the periphery of the platform plate is provided with a guardrail; by setting the platform track on the above-mentioned top plate, the platform plate The platform moving driving part is connected with the platform track, the platform moving driving part is arranged at the bottom of the platform plate, and the traveling wheel connected with the platform moving driving part is arranged at the bottom of the platform plate, and the traveling wheel cooperates with the platform track, and is driven by the platform moving driving part The rotation of the walking wheels on the platform track drives the movement of the mobile platform 12; the mobile platform 12 can move to the front of the tunnel, which is convenient for carrying out steel arch support to the firs...

Embodiment 3

[0048] Embodiment 3: as figure 2 As shown, the holding assembly 625 includes a fixed arm 6251 and a movable arm 6252 relatively arranged on the support frame 622. The fixed arm 6251 and the movable arm 6252 are symmetrical L-shaped structures, which are convenient for clamping and fixing the steel arch. Frame; the movable arm 6252 is hinged with the support frame 622, and the support frame 622 is provided with an opening and closing driver 6253 that drives the movable arm 6252 to open and close. In this embodiment, the opening and closing driver 6253 is a push cylinder, and the push cylinder The fixed end is hinged with the support frame 622, and the telescopic end is hinged with the movable arm 6252, which is used to control the movable arm 6252 to rotate close to the fixed arm 6251 to close or to rotate away from the fixed arm 6251 to open. And, the walking leg is hinged with the support frame 633, so that the walking leg can rotate slightly when the walking assembly 62 mov...

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Abstract

The invention provides an operation rack for tunnel supporting construction. The operation rack comprises a movable portal, and a concrete guniting device, a jumbolter device and a steel arch splicing device are arranged on the movable portal; and the steel arch splicing device comprises a moving mechanism used for moving the steel arch and a grabbing mechanical arm used for grabbing the steel arch, and the grabbing mechanical arm is matched with the moving mechanism. The steel arch splicing device is arranged on the movable portal, so that the splicing process of the steel arch is mechanized, the jumbolter device and the guniting device are integrated, the system integration degree is high, cooperative and efficient operation can be achieved, the working efficiency is improved, the arch is timely supported, the supporting efficiency is high, the quality is more stable, and the safety of tunnel construction is improved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to an operating platform used for tunnel support construction. Background technique [0002] In the tunnels constructed by the drill and blast method and the step method, initial support is required to improve the stability of the surrounding rock and prevent collapse. The initial support generally adopts steel arches, which are strengthened with steel mesh, anchor rods and shotcrete. [0003] Currently there are independent steel arch installation trucks, concrete spray trucks and bolter trucks. The construction procedure is to break the rock with a cantilever boring machine or use explosives, and then retreat to the rear. The concrete spray truck travels to the front to spray concrete for preliminary support. , then the concrete spraying vehicle retreats to the rear, the bolter moves to the front for bolt support, then the bolter moves to the rear, and the steel arch ...

Claims

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Application Information

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IPC IPC(8): E21D11/40E21D11/10E21D20/00E21D11/18
CPCE21D11/40E21D11/105E21D20/003E21D11/18
Inventor 叶蕾张建楠朱英曹宸旭尤卫星
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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