Earth excavation tool for subsurface tunnel and earth excavation method of earth excavation tool

A tunnel and underground excavation technology, which is applied to tunnels, earthwork drilling, mining equipment, etc., can solve the problems of long construction period, manpower and material resources consumption, etc.

Inactive Publication Date: 2019-11-15
中交二公局铁路工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the above-mentioned prior art, the present invention proposes a digging tool and a digging method for underground tunnels, which can well solve the problems of large manpower and material resources consumption and long construction period in tunnel construction. At the same time, the arc-shaped structure of the tunnel can be drilled directly, without manual follow-up repairs

Method used

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  • Earth excavation tool for subsurface tunnel and earth excavation method of earth excavation tool
  • Earth excavation tool for subsurface tunnel and earth excavation method of earth excavation tool
  • Earth excavation tool for subsurface tunnel and earth excavation method of earth excavation tool

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Embodiment 1

[0032] In the present embodiment, the arc support 1 is arched, the width of the chain groove of the arc support 1 is 0.1m, the width of the chain 10 embedded with the chain groove is 0.08m, and the depth of the drill bit 8 drilling out of the groove is 0.8m.

[0033] The soil excavation method for the underground excavation tunnel carried out by the earth excavation tool of the present embodiment is as follows:

[0034] 1) Move the bottom beam 6 to a distance of 1m from the face of the tunnel, make the arc-shaped support 1 parallel to the face of the tunnel, and make the drill bit 8 on the drilling unit face the face of the tunnel;

[0035] 2) The transmission mechanism works, the reducer 11 drives the transmission sprocket 12 to rotate through the transmission shaft 14, the transmission sprocket 12 drives the chain 10 and the driven guide sprocket 13 to rotate, and the chain 10 then drives the axial telescopic drive unit by connecting the bottom frame and the drilling and dig...

Embodiment 2

[0040]In the present embodiment, the arc support 1 is arched, the width of the chain groove of the arc support 1 is 0.3m, the width of the chain embedded with the chain groove is 0.28m, and the depth of the drill bit 8 drilling out of the groove is 1m.

[0041] The soil excavation method for the underground excavation tunnel carried out by the earth excavation tool of the present embodiment is as follows:

[0042] 1) Move the bottom beam 6 to a distance of 1.2m from the face of the tunnel, make the arc support 1 parallel to the face of the tunnel, and make the drill bit 8 on the drilling unit face the face of the tunnel;

[0043] 2) The transmission mechanism works, the reducer 11 drives the transmission sprocket 12 to rotate through the transmission shaft 14, the transmission sprocket 12 drives the chain 10 and the driven guide sprocket 13 to rotate, and the chain 10 then drives the axial telescopic drive unit by connecting the bottom frame and the drilling and digging unit m...

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Abstract

The invention provides an earth excavation tool for a subsurface tunnel and an earth excavation method of the earth excavation tool, and belongs to the technical field of tunnel construction. The earth excavation tool specifically comprises a bottom beam, arc-shaped supports are correspondingly arranged on the two sides of the bottom beam, the arc-shaped supports are parallel to a tunnel face of atunnel, a transmission mechanism capable of making arc-shaped track transmission along the arc-shaped supports is arranged on the two arc-shaped supports, the transmission mechanism is connected witha deep drilling mechanism, a drilling bit of the deep drilling mechanism directly faces the tunnel face of the tunnel, and moves along the arc-shaped track of the arc-shaped supports under driving ofthe transmission mechanism, and an arc-shaped groove hole is formed by drilling. The construction progress can be greatly accelerated by using the earth excavation tool, the construction period is shortened, and the costs of manpower and material resources are reduced.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a soil digging tool and a soil digging method for underground tunnel excavation. Background technique [0002] During tunnel construction, in order not to affect the operation of urban ground traffic or for some structures that require special buried depth, the underground excavation method is adopted. Under certain geological conditions, the underground excavation method is carried out by digging underground without digging the ground. A tunnel construction method for building lining structures. [0003] At present, in the construction of tunnels such as railways, highways, subways, and mountain drilling, the underground excavation method is a commonly used tunnel excavation method, but the underground excavation method uses small-scale mechanical construction, and the basic excavation progress is one meter a day. , in many cases, small machinery is stil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10E21D9/00
CPCE21D9/03E21D9/1006E21D9/1086E21D9/1093
Inventor 瞿东明杨箭亮王红卫王旺龙
Owner 中交二公局铁路工程有限公司
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