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Tunnel smooth blasting powder charging device and method

A technology of smooth blasting and charging, which is applied in blasting, tunneling, earthwork drilling and mining, etc. It can solve the problems of poor blasting effect, unfavorable use of blasting energy, and increase of propagation medium, so as to improve the effect of smooth blasting, Conducive to the effect of smooth blasting effect and stable locking effect

Inactive Publication Date: 2019-04-12
OCEAN UNIV OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can play a certain effect, it blocks the effective transmission of gas energy generated by blasting, increases the propagation medium and is not conducive to the full utilization of blasting energy, and the blasting effect is still not good

Method used

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  • Tunnel smooth blasting powder charging device and method
  • Tunnel smooth blasting powder charging device and method
  • Tunnel smooth blasting powder charging device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1, such as Figure 1 to Figure 3 As shown, a tunnel smooth surface blasting charge device is applied in the blasting borehole 30, and the device includes a set of buckle elastic support members 10 arranged at both ends of the charge roll 20 in the axial direction. in,

[0035] The buckle elastic support 10 has a cassette 4 on which several fixed teeth 5 are arranged, and fixed buckles 6 and movable buckles 7 are connected to both ends of the cassette 4;

[0036] On the fixed buckle 6 and the movable buckle 7, several stoppers 3 for the limit spring 2 are respectively arranged;

[0037] The fixed buckle 6 and the movable buckle 7 are all provided with an internal cavity for the cassette 4 to pass through; the internal cavity of the fixed buckle 6 is provided with a reverse locking tooth 8;

[0038] On the outside of the fixed buckle 6 and the movable buckle 7, a spring 2 is fixedly connected respectively;

[0039] The charging method realized simultaneously by...

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Abstract

The invention discloses a tunnel smooth blasting powder charging device and method. Based on the smooth blasting peripheral hole non-coupling powder charging mode, a disposable buckle support device is adopted, so that a small-diameter cartridge is symmetrically fixed and supported to achieve the effect that the cartridge is arranged on the axial central line of a blasting shot hole in a filling manner; and the cartridge is precisely supported from the center, the smooth blasting effect is improved to the greatest extent. The tunnel smooth blasting powder charging device comprises a buckle elastic support component arranged at the two ends, in the axial direction, of the cartridge. The buckle elastic support component is provided with a clamping belt. Several fixing clamping teeth are arranged on the clamping belt. A fixed buckle and a movable buckle are arranged at the two ends of the clamping belt correspondingly. The fixed buckle and the movable buckle are each provided with an internal cavity, wherein the internal cavities allow the clamping belt to penetrate through. Springs are fixedly connected outside the fixed buckle and the movable buckle correspondingly.

Description

technical field [0001] The invention relates to a device and a method for uncoupling charge of a small-diameter charge coil in a peripheral hole of a smooth blasting tunnel and a method thereof, belonging to the fields of civil engineering and mechanical design. Background technique [0002] A tunnel is an engineering building buried in the ground, and it is a form of human use of underground space. The blasting method used in the tunnel construction process is to reduce the disturbance to the surrounding rock and control the amount of advance excavation, and the smooth blasting technology is usually used more commonly. [0003] In order to reduce the disturbance of the surrounding rock by blasting at the peripheral eye, air-spaced charge, small-diameter non-coupling charge, and air column charge are often used in the peripheral eye to control the wire charge amount of the peripheral eye. Among them, air-spaced charges and air-column charges have higher requirements on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D3/04F42D1/08E21D9/00
CPCF42D3/04E21D9/006F42D1/08
Inventor 刘涛孙文景亓宁苏秀婷张婷婷
Owner OCEAN UNIV OF CHINA
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