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Splitting device for tunnel excavation

A technology of tunnel excavation and splitting machine, which is applied in tunnels, mining equipment, earthwork drilling and mining, etc. It can solve the problems that affect the utilization rate of drilling operation time, blasting over-excavation, under-excavation is difficult to control, and the harmful effects of surrounding rocks and other problems, to achieve the effect of reducing support workload, simple and convenient construction process, and reducing over- and under-excavation rate

Inactive Publication Date: 2019-06-04
CHINA RAILWAY CONSTR HEAVY IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This blasting excavation method has many construction disadvantages, for example, it has harmful effects on the surrounding environment and surrounding rock, and the flying stones and gun smoke generated during the blasting process make tunnel excavation only intermittent operations
As a result, the utilization rate of drilling, ballasting, support and other operation time is greatly affected
[0003] In addition, in the construction of traditional drilling and blasting method, there are vibrations, flying stones, shock waves, noise, harmful gases and other influences during the construction process, so that the blasting construction will cause uneven defects on the tunnel surface. problems, increased support workload, low construction efficiency and poor safety performance

Method used

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  • Splitting device for tunnel excavation
  • Splitting device for tunnel excavation
  • Splitting device for tunnel excavation

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Embodiment Construction

[0028] The present invention is introduced below by accompanying drawing.

[0029] In this application, it should be noted that the directional terms or qualifiers "upper", "lower", "left", "right", "front", "rear" etc. used in this application are for the For the accompanying drawings. Specifically with figure 1 The coordinate indication in , the direction indicated by X is defined as the front or similar terms, and the direction opposite to it is defined as the rear or similar terms, that is, the forward end of the splitting device used for tunnel excavation is defined as the front end or similar terms, The end opposite to the forward end is defined as the back end or similar terms. The direction indicated by Y is defined as up or similar terms, and the direction opposite thereto is defined as down or similar terms. The direction indicated by Z is defined as right or a similar term, and the direction opposite thereto is defined as left or a similar term. They are not int...

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Abstract

The invention provides a splitting device for tunnel excavation. The splitting device is used for being installed on an operation trolley; the splitting device comprises a boom support which is fixedly installed on the operation trolley, a telescopic arm connected with the boom support, a rotary system connected with the telescopic arm and a splitting arm connected with the rotary system; the rotary system comprises an auxiliary arm and a revolution arm connected with the auxiliary arm in a hinged mode, and the auxiliary arm is fixedly connected with the telescopic arm; and the splitting arm comprises a splitting arm pushing mechanism connected with the revolution arm and a splitting mechanism fixedly connected with the splitting arm pushing mechanism, wherein the splitting arm can performup and down pitching and left and right swinging together with the revolution arm through the auxiliary arm correspondingly, pushing power is provided for the splitting arm through the splitting armpushing mechanism, and rock crushing construction is performed through the splitting mechanism.

Description

technical field [0001] The invention relates to the technical field of excavation equipment in tunnel construction engineering, in particular to a splitting device for tunnel excavation. Background technique [0002] At present, the excavation of short and medium length hard rock tunnels is dominated by the drill and blast method. During tunnel excavation construction, firstly, blast holes are drilled, and then excavated by explosive blasting. This blasting excavation method has many construction disadvantages. For example, it has harmful effects on the surrounding environment and surrounding rock, and the flying stones and gun smoke generated during the blasting process make tunnel excavation only intermittent operations. As a result, the utilization rate of operation time such as drilling, ballasting, and support is greatly affected. [0003] In addition, in the construction of traditional drilling and blasting method, there are vibrations, flying stones, shock waves, no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
Inventor 刘飞香郑大桥潘国智刘鑫刘可可赵春桂夏元高
Owner CHINA RAILWAY CONSTR HEAVY IND
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