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A working platform for tunnel construction and its application method

A technology for tunnel construction and workbench, applied in tunnels, tunnel linings, earthwork drilling, etc., can solve problems such as high failure rate and complex structure, and achieve the effect of low failure rate, high device integration, and simplified construction process.

Active Publication Date: 2022-04-05
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] Aiming at the above-mentioned technical problems, the present invention proposes a working platform for tunnel construction and its use method 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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  • A working platform for tunnel construction and its application method
  • A working platform for tunnel construction and its application method
  • A working platform for tunnel construction and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: as Figure 1~Figure 7 As shown, a workbench for tunnel construction according to the present invention includes a movable gantry 1, and the movable gantry device is the main force-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 stee...

Embodiment 2

[0053] Embodiment 2: as figure 1 and figure 2 As shown, the moving mechanism 6 includes a moving track 61 and a walking assembly 62. The walking assembly 62 is connected to the moving track 61 and can move and walk on the moving track 61. The arc of the moving track 61 matches the arch of the steel arch , the moving track 61 provides the walking assembly 62 with a track for moving the steel arch to the corresponding position of the arch structure; the walking assembly 62 is provided with a holding member 625 for clamping the steel arch for clamping and fixing the steel arch , so that the steel arch moves following the movement of the walking assembly 62 .

[0054] Further, as image 3 As shown, the moving track 61 is an arched large ring gear, and the walking assembly 62 includes a support frame 622 and a pinion 621 rotatably connected to the support frame 622, and the pinion gear 621 is meshed with the large ring gear; The frame 622 is provided with a drive motor 624 that...

Embodiment 3

[0056] Embodiment 3: as image 3 As shown, the holding member 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 that drives the opening and closing of the movable arm 6252. In this embodiment, the opening and closing driver is a push cylinder, and the fixing of the push cylinder The 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. When working, the walking assembly 62 is located at the lower part of the mobile door frame 1, which is convenient to clamp and fix...

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Abstract

The invention proposes a new type of working platform for tunnel construction, which includes a mobile portal frame, on which a concrete spraying device, a bolter drilling device and a steel arch assembly device are arranged; the steel arch assembly device It includes a moving mechanism for moving the segmented steel arch, a grabbing manipulator for grabbing the segmented steel arch, and a transport mechanism for transporting the assembled steel arch. The grabbing manipulator cooperates with the moving mechanism, and the The transportation mechanism cooperates with the mobile mechanism. The invention mechanizes the assembling process of the steel arch by installing a steel arch assembling device on the mobile gantry, and integrates a bolter device and a spraying device. Moreover, the arch support is timely, the support efficiency is high, and the quality is more stable, and the safety of tunnel construction is improved; and the work bench structure is simple, the failure rate is low, and the production cost can also be saved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a working platform for tunnel construction and a method for using the same. 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/40E21D20/00E21D11/18E21D11/10
CPCE21D11/40E21D20/003E21D11/18E21D11/105
Inventor 朱英杨兴亚张建楠尤卫星曹宸旭
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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