Unlock instant, AI-driven research and patent intelligence for your innovation.

Boulder drilling chopping device, shield tunneling machine as well as boulder drilling chopping method and application

A technology of boulders and drilling rigs, which is applied in the field of tunnel construction, can solve the problems of high labor intensity, low operation safety, and difficult control of blasting direction, etc., to improve the efficiency and safety factor of rock breaking, improve construction safety factor, high practicality and The effect of promoting value

Inactive Publication Date: 2020-11-20
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many ways to break rocks. The earliest method is to use manual splitting, that is, to chisel some wedge-shaped holes on the rock mass with an iron chisel, insert metal wedges, and beat them with a hammer in turn until the rock blocks are separated from the rock mass. The reason why the rock block can be separated from the rock mass is that when the tension generated by the wedge slope is greater than the tensile strength of the rock, the rock block cracks from the top to the bottom from the surface of the rock mass. This kind of mining belongs to primitive manual Mining, low efficiency and high labor intensity
There is also a mining method of explosive blasting, that is, to drill some deep blastholes on the rock mass, and install explosives or detonating cords to detonate. This method is due to the direct action of the explosion load on the rock mass, and the detonation wave is directed towards the surrounding rock mass. Propagation, it is difficult to control the materiality of rocks, a lot of waste is generated, and violent vibrations are also produced, accompanied by flying stones, and the operation safety is low
In view of the deficiencies of the above two methods, Chinese patent CN 1097237 A discloses a splitting method and a splitter for stone mining. First, a shallow hole is drilled on the rock mass, and the shallow hole is equipped with a groove body consisting of two half metal columns. The inner cavity of the composition is equipped with a tension splitter with energy release material. After the energy release is promoted outside the hole, the tension generated by the splitter will split the rock. This invention will certainly improve the above two methods to a certain extent, but the energy The amount of release is difficult to control accurately, too much is easy to waste, too little is not enough to split the rock
And it is not suitable for the crushing of large boulders in tunnel excavation
[0003] In the tunnel excavation process, the drilling and blasting method will also be used to break the boulders. For example, the Chinese patent CN106524844B discloses a construction method for boulder exploration and blasting treatment along the shield tunnel. Explosive blasting is used to improve the rock breaking efficiency, but The blasting direction is not easy to control, and the safety factor is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Boulder drilling chopping device, shield tunneling machine as well as boulder drilling chopping method and application
  • Boulder drilling chopping device, shield tunneling machine as well as boulder drilling chopping method and application
  • Boulder drilling chopping device, shield tunneling machine as well as boulder drilling chopping method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0033] Embodiment 3: A roadheader, including the boulder drilling and splitting device described in Embodiment 2, cooperates with other systems of the existing roadheader, and quickly crushes boulders through the boulder drilling and splitting device to realize high-speed excavation of the tunnel digging, reducing tool wear.

Embodiment 4

[0034] Embodiment 4: a kind of boulder splitting method of described boulder splitting device, (such as Figure 5 , 6 shown): The steps are as follows:

[0035]S1: During tunnel excavation, when a large boulder is encountered, transport the boulder splitting device to a suitable position away from the boulder, so as to facilitate drilling and splitting of the boulder;

[0036] S2: The anchor drilling device 1 of the boulder splitting device performs anchor drilling on the boulder according to the pre-planned position to form a split hole; specifically, the drive motor is started, and the drilling rig is driven to move linearly along the slide rail, borehole for drilling;

[0037] S3: After the anchor drilling device 1 completes all splitting drilling, it is retracted under the splitting device 2, and the splitting device 2 is adjusted to the position corresponding to the splitting drilling; Driven by the table, move part of the distance sideways,

[0038] S4: The splitting...

Embodiment 5

[0040] Embodiment 5: An application of the above-mentioned boulder splitting device in the coal mining process. In the coal mining process, when a boulder is encountered, the boulder is first drilled and then expanded by the boulder splitting device Crushing, suitable for various coal mining conditions, improving mining efficiency and mining safety factor.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a boulder drilling chopping device, a shield tunneling machine as well as a boulder drilling chopping method and application. The boulder drilling chopping device comprises a supporting frame, wherein an anchoring drilling device and a chopping device are arranged on the supporting frame; the anchoring drilling device is connected to the supporting frame through a slide mechanism; and the chopping device is connected to the supporting frame through a lifting mechanism. According to the building drilling chopping device disclosed by the invention, the anchoring drillingdevice is matched with the chopping device for expanding and cracking boulders in an excavated surface after firstly drilling, so that rock breaking efficiency is greatly improved. The boulder drilling chopping device is delicate in structural design; the anchoring drilling device and the chopping device are flexibly to move, so that boulders on different positions can be accurately crushed; and the boulder drilling chopping device is matched with the shield tunneling machine to realize efficient and safe excavation of a tunnel, so that investment cost is reduced, construction efficiency is improved, and a construction safety coefficient is increased.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a boulder drilling and splitting device, a shield machine, and a boulder splitting method and application. Background technique [0002] There are many ways to break rocks. The earliest method is to use manual splitting, that is, to chisel some wedge-shaped holes on the rock mass with an iron chisel, insert metal wedges, and beat them with a hammer in turn until the rock blocks are separated from the rock mass. The reason why the rock block can be separated from the rock mass is that when the tension generated by the wedge slope is greater than the tensile strength of the rock, the rock block cracks from the top to the bottom from the surface of the rock mass. This kind of mining belongs to primitive manual Mining has low efficiency and high labor intensity. There is also a mining method of explosive blasting, that is, to drill some deep blastholes on the rock mass, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08E21D20/00
CPCE21D9/08E21D20/003
Inventor 原晓伟姜礼杰文勇亮钱豪
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD