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Hopper device and construction method for laying of tunnel inverted arch cushion layer

A technology for tunnels and hoppers, which is applied in the field of hopper devices for laying inverted arch cushions in tunnels. It can solve the problems of poor control of height direction accuracy, reduced construction speed and efficiency, and difficult control of initial support quality, so as to improve construction speed and The effect of improving efficiency, improving automation rate and improving laying quality

Active Publication Date: 2021-03-09
CHINA RAILWAY CONSTR CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the irregularity of the excavation surface, such as over-excavation and under-excavation, the accuracy of the height direction is not easy to control; secondly, manual vibration is required to ensure compactness during concrete pouring, and the result of such vibration is uncertain. As a result, the quality of the initial support is difficult to control; finally, it takes a long time for the concrete to solidify to the strength that can pass the car, which cannot meet the fast passing of the car, reducing the construction speed and efficiency

Method used

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  • Hopper device and construction method for laying of tunnel inverted arch cushion layer
  • Hopper device and construction method for laying of tunnel inverted arch cushion layer
  • Hopper device and construction method for laying of tunnel inverted arch cushion layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Such as Figure 1 to Figure 3 The shown hopper device for laying the invert cushion of a tunnel includes a hopper body 1, a gate mechanism arranged on the hopper body 1 and a vibration mechanism arranged on the hopper body 1, and the hopper body 1 The bottom is an inferior arc, and the bending direction of the bottom of the hopper body 1 is consistent with the bending direction of the excavation surface of the inverted arch of the tunnel. The two sides of the hopper body 1 are provided with a plurality of discharge ports 1-3-2, and a plurality of The discharge port 1-3-2 is arranged along the arc length direction of the hopper body 1, the gate mechanism controls the opening or closing of the discharge port 1-3-2, and the top opening of the hopper body 1 . The vibrating mechanism can not only drive the bean gravel in the hopper body 1 to vibrate, but also vibrate the bean gravel on the excavation surface of the inverted arch of the tunnel.

[0059] In this embodiment, ...

Embodiment 2

[0069] In this embodiment, the hopper body 1 includes two symmetrically arranged side plates 1-1, end plates 1-2 symmetrically installed at both ends of the two side plates 1-1 and connected to the bottom of the two side plates 1-1. bottom plate 1-7, the bottom plate 1-7 is a inferior arc, the bending direction of the bottom plate 1-7 is consistent with the bending direction of the tunnel inverted arch excavation surface, and the bottom of the outer wall of the side plate 1-1 is provided with The discharge table 1-3, a gap for the gate mechanism to pass through is provided between the discharge table 1-3 and the outer side wall of the side plate 1-1.

[0070] Further preferably, a plurality of clamping blocks 1-3-1 are arranged between the discharge platform 1-3 and the outer wall of the side plate 1-1, and an outlet is formed between two adjacent clamping blocks 1-3-1. The material outlet 1-3-2, and a plurality of the material outlets 1-3-2 are arranged in an arc shape.

[0...

Embodiment 3

[0079] In this embodiment, the hopper body 1 is provided with a first inclined plate 1-4 and a second inclined plate 1-5, and the first inclined plate 1-4 and the second inclined plate 1-5 are arranged along the bottom plate 1- 7 Arranged in the arc length direction, the connecting line at the top of the first inclined plate 1-4 and the second inclined plate 1-5 is arc-shaped, and the two sides of the first inclined plate 1-4 and the second inclined plate 1-5 The end fits with the end plate 1-2.

[0080] Further preferably, the first inclined plate 1-4 and the second inclined plate 1-5 are provided with a plurality of partitions 1-6, and the plurality of partitions 1-6 are arranged along the first inclined plate 1-4 and the second inclined plate. The two inclined plates are arranged in the arc length direction of 1-5.

[0081] Further preferably, the angle formed between the first inclined plate 1-4 and the second inclined plate 1-5 is less than 90°.

[0082] Further prefera...

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Abstract

The invention discloses a hopper device and a construction method for laying of a tunnel inverted arch cushion layer. The device comprises a hopper body, a gate mechanism arranged on the hopper body and a vibration mechanism arranged on the hopper body, the bottom of the hopper body is in an inferior arc shape, and the bending direction of the bottom of the hopper body is consistent with the bending direction of a tunnel inverted arch excavation surface; and a plurality of discharging ports are formed in the two sides of the hopper body and distributed in the arc length direction of the hopperbody, and the gate mechanism controls the discharging ports to be opened or closed. The method comprises the following steps: 1, containing pea gravels; 2, transporting and hoisting the hopper devicefor laying the tunnel inverted arch cushion layer; and 3, laying the tunnel inverted arch cushion layer. The cushion layer of the tunnel inverted arch section can be accurately and rapidly laid, so that rapid vehicle passing is achieved through the cushion layer; and in addition, the construction quality of the cushion layer of the excavation face is improved, and the construction efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of tunnel inverted arch cushion laying, and in particular relates to a hopper device and a construction method for laying tunnel inverted arch cushion. Background technique [0002] In the traditional tunnel inverted arch construction, steel mesh is laid on the excavation surface of the tunnel inverted arch and concrete is poured to form the initial support, and then the inverted arch blocks are poured on site on the initial support. Due to the irregularity of the excavation surface, such as over-excavation and under-excavation, the accuracy of the height direction is not easy to control; secondly, manual vibration is required to ensure compactness during concrete pouring, and the result of such vibration is uncertain. As a result, the quality of the initial support is difficult to control; finally, it takes a long time for the concrete to solidify to the strength that can pass the car, which cannot meet the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C19/20E01C19/48E21D11/04
CPCE01C19/20E01C19/2015E01C19/4833E21D11/04
Inventor 崔润兵雷升祥李国良田殿军王飞左转玲任彦丽赵晓勇刘建红陈敬军兴安卢盼李金魁杨莹雒菊萍朱正如
Owner CHINA RAILWAY CONSTR CORP LTD
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