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Blasting method

A consistent, blast-hole technology used in the field of blasting to address issues such as shear strength and unbalanced resistance between hole walls

Active Publication Date: 2018-11-23
远军热能动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a blasting method using a shear thickening liquid as a blasthole plug to overcome the problems of unbalanced shear strength and resistance between the hole walls of the existing blasthole plug, while achieving Technical effects of dust reduction and vibration reduction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Water starch is selected for the shear thickening liquid, where the volume ratio of starch to water is 1.5:1; the blasting concentrator uses ordinary TNT explosive packs; the blasting holes are digged at the position to be blasted; the starch is added to the water and mixed evenly After about 5-15 minutes, prepare water starch, pour the water starch into the blast hole; place the ordinary TNT explosive bag in the blast hole, and push the ordinary TNT explosive bag into the water starch; The water starch completely seals the blasting blast hole, so as to completely fill the blasting concentrator in the blasting blast hole; the water starch on the side close to the outlet of the blasting blast hole is filled with 10cm gun mud; A cardboard is arranged between the mud and the water starch; the ordinary TNT explosive pack is detonated.

Embodiment 2

[0070] The shear thickening liquid uses water starch, where the volume ratio of starch to water is 2:1; the blasting concentrator uses ordinary TNT explosive packs; the blasting holes are digged at the position to be blasted; the starch is added to the water and mixed evenly After about 5-15 minutes, prepare water starch, pour the water starch into the blast hole, place the ordinary TNT explosive bag in the blast hole, and push the ordinary TNT explosive bag into the water starch. The water starch completely closes the blasting hole, so as to completely fill the blasting concentrator in the blasting blast hole; the outer side of the water starch near the exit of the blasting blast hole is filled with 5cm gun mud; A cardboard is arranged between the mud and the water starch; the ordinary TNT explosive pack is detonated.

Embodiment 3

[0072] The shear thickening liquid uses water starch, where the volume ratio of starch to water is 2.5:1; the blasting concentrator uses ordinary TNT explosive packs; the blasting holes are digged at the position to be blasted; the starch is added to the water and mixed evenly After about 5-15 minutes, prepare water starch, pour the water starch into the blast hole, place the ordinary TNT explosive bag in the blast hole, and push the ordinary TNT explosive bag into the water starch; The water starch completely closes the blasting hole, so as to completely fill the blasting concentrator in the blasting blast hole; the outer side of the water starch near the exit of the blasting blast hole is filled with 5cm gun mud; A cardboard is arranged between the mud and the water starch; the ordinary TNT explosive pack is detonated.

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Abstract

The invention discloses a blasting method. The method comprises the following steps: filling a blasting hole with shear thickening liquid, wherein the shear thickening liquid completely covers or partly covers a blasting concentrator in the blasting hole; completely enclosing the blasting hole by the shear thickening liquid to completely embed the blasting concentrator in the blasting hole; and detonating the blasting concentrator, wherein the shear thickening liquid belongs to a kind of non-Newtonian fluid. According to the blasting method, shear thickening liquid is applied as a blasting hole plug for plugging the blasting hole, the blasting hole is good in plugging effect, flying stone splashing is almost avoided in the blasting process, the blasting degree is deep, the blasting efficiency is high, the blasting effect is not limited by the arrangement mode of the blasting hole, and the degree of freedom of the blasting hole arrangement is larger; the blasting process is more moderate, does not generate strong air shock waves, does not cause damage to the surrounding environment and workers, blasting noise is small, and the blasting process is safe.

Description

Technical field [0001] The invention relates to a blasting technology, in particular to a blasting method using shear thickening liquid. Background technique [0002] Blasting construction includes mining, metallurgy, geotechnical engineering, road, traffic and other blasting projects; during the blasting construction process, dust, soil and rock splashing, noise and shock waves will be generated. The shock wave generated by blasting is an external effect produced during the explosion. Within a certain range, the shock wave of the explosion will produce lethality to the construction personnel and cause damage to the surrounding buildings. Although the noise generated by blasting is short, its loud, sharp, and high-frequency noise is easy to cause people to panic, and continuous different explosions will cause adverse psychological and physical effects on people. Dust, soil and rock splashes produced by blasting will cause certain damage and pollution to the surrounding environme...

Claims

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Application Information

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IPC IPC(8): F42D1/00F42D1/24
CPCF42D1/00F42D1/24
Inventor 郭远军
Owner 远军热能动力科技有限公司