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Bidirectional energy gathering tension shaping blasting cartridge

A blasting tube and energy-gathering technology, which is applied in blasting tubes, weapon accessories, offensive equipment, etc., can solve the problems of difficulty in ensuring the surrounding quality, and cannot completely eliminate the damage and destruction of the surrounding rock of the roadway, and achieves a high rate of peripheral eye marks and no damage. Low flatness, good effect

Active Publication Date: 2008-03-12
何满潮
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the quality of the blasting has been improved by using the "light explosion" technology, it still cannot completely eliminate the damage and damage to the surrounding rock of the roadway, especially in weak and broken rocks, it is difficult to ensure the surrounding quality

Method used

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  • Bidirectional energy gathering tension shaping blasting cartridge
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Embodiment Construction

[0019] A two-way energy-gathering tensile forming blasting tube according to the present invention, its specific implementation method is: comprising a blasting tube body 1), consisting of an energy-gathering port 2 opened on the blasting tube body 1, and the energy-gathering port 2 is formed in the blasting tube body 1). Symmetrical energy-gathering holes are opened on both radial sides of the tube body 1 at an angle of 30°--180°, and:

[0020] 1) The blasting pipe body 1 is made of PVC pipe, whose diameter is 6-10mm smaller than the blast hole;

[0021] 2) The diameter of the energy gathering hole is 1 / 8-1 / 10 of the diameter of the blasting tube body 1;

[0022] 3) The distance of the energy gathering hole is 1 / 2-1 / 5 of the length of the blasting tube body 1;

[0023] The reason why the present invention achieves a better effect than before is that first of all, the effect of linear energy-concentrated blasting is limited for a body to be exploded with a high compressive st...

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Abstract

The invention relates to a bidirectional energy-accumulating tension forming blasting pipe, belonging to the energy-accumulating blasting device field. The conventional energy-accumulating blasting is to use the energy-accumulating device to linearly accumulate energy (such as ABS slotted pipe), and the detonation shock wave releases energy along the cutting joint of the energy-accumulating device, which generates the linear impact pressure action on hole wall and results in that the substance to be exploded generates the vertical radial crack surface along a blast hole. At present, the invention is mainly applied to the directional blasting of soft rock. If the substance to be exploded has the high compressive strength, the effect is limited. Due to the adoption of a PVC pipe and the bidirectional energy-accumulating hole, the invention generates the tension action on the substance to be exploded when blasting, which thereby can fully use the characteristic of that the tensile strength is far less than the compressive strength in order to generate the tension forming blasting effect. Therefore, the invention is far better than the conventional energy-accumulating blasting in forming effect, peripheral hole mark rate, explosive consumption, blast hole drilling volume, overbreak volume and other aspects.

Description

technical field [0001] The invention relates to the field of energy-gathering blasting devices, in particular to a two-way energy-gathering tensioned blasting tube. Background technique [0002] Since the late 1950s, smooth blasting ("light blasting") has risen in Sweden. At present, in my country, more than 90% of them are used in rock roadway (tunnel) construction. Although the quality of blasting formation has been improved by using the "light explosion" technology, it still cannot completely eliminate the damage and destruction to the surrounding rock of the roadway, especially in weak and broken rocks, it is difficult to ensure the surrounding quality. Therefore, after many experts and scholars at home and abroad have carried out exploration and research, various directional energy-gathering blasting technologies have begun to emerge. According to the energy gathering method and force characteristics, the development of energy gathering blasting technology can be divid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42B3/22
Inventor 何满潮
Owner 何满潮
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