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Automatic nozzle for spraying concrete in tunnel and construction method thereof

A tunnel spraying and concrete technology, which is applied in tunnels, earthwork drilling, tunnel lining, etc., to achieve the effects of reducing labor intensity, compact size, and improving spraying quality and spraying efficiency

Active Publication Date: 2016-08-10
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no corresponding device that can realize automatic spraying of concrete on the trolley

Method used

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  • Automatic nozzle for spraying concrete in tunnel and construction method thereof
  • Automatic nozzle for spraying concrete in tunnel and construction method thereof
  • Automatic nozzle for spraying concrete in tunnel and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like Figure 1-7 As shown, an automatic nozzle device for spraying concrete in a tunnel includes a track 14, a nozzle rotating device 2, a fixing device 3, a rotation control system 10 and a power traction device 12;

[0040] The track includes two guide rails 14, which are made of stainless steel and have relatively high rigidity, which can bear the weight of the automatic sprinkler device and the reaction force of spraying grout. The space will not affect the normal construction of other processes, and it will continue to be used until the next spraying cycle.

[0041] The nozzle rotating device 2 is embedded in the fixing device 3, which is cylindrical, with threaded interfaces 4 and 5 on the side and top, which can be connected with the spray pipe and nozzle 1 respectively, with a spray channel 11 inside and gears on the outside 6. The gear is rotated under force to realize the rotation of the nozzle connected to it.

[0042] The fixing device 3 is a cylinder slig...

Embodiment 2

[0055] The rotary drive mechanism can also drive the rotary mechanism through gear transmission, chain transmission, worm gear transmission or other similar transmission methods.

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PUM

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Abstract

The invention relates to an automatic nozzle for spraying concrete in a tunnel and a construction method thereof. The automatic nozzle comprises a fixing device which is provided with a rotating mechanism and a rotating driving mechanism. The rotating mechanism is provided with a nozzle body and a grouting opening. A circulation pipeline is arranged between the nozzle body and the grouting opening. The rotating driving mechanism drives the rotating mechanism to drive the nozzle body to rotate within the set range of the vertical plane. The fixing device is provided with a traction mechanism, and the bottom end of the fixing device is provided with pulleys. A trolley is provided with sliding rails matched with the pulleys.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to an automatic sprinkler head for shotcrete in a tunnel and an application method thereof. Background technique [0002] At present, most tunnels are constructed using the new Austrian method. The new Austrian construction method adopts shotcrete support as the main method, and its characteristics are: ① timeliness, that is, the shotcrete support immediately after the blasting of the roadway can effectively prevent the development of rock formation deformation, and control the extension of the stress reduction area to reduce the support; The load bearing of the protection enhances the stability of the rock formation. ②Sealing, anchoring and shotcrete support timely and comprehensively stick to the surrounding rock, which can effectively prevent the weathering and spalling of the surrounding rock, avoid deliquescence and expansion of the expansive rock mass, and protect the origi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B3/02B05B3/18E21D11/10
CPCB05B3/02B05B3/025B05B3/18E21D11/105
Inventor 李术才黄鑫许振浩林鹏周轮孙超群何树江屠文峰高成路刘聪
Owner SHANDONG UNIV
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