A Blasting Method for Reducing Harmful Effects Based on Wave Catch-Energy Dissipation

Abstract

The invention discloses a blasting method for reducing harmful effects based on choke-energy dissipation, which belongs to the technical field of mining construction and comprises the following steps: sequentially arranging blastholes in the main blast zone, wave choke holes, energy dissipation holes, empty holes on the working face hole; prepare the energy-gathering-energy-dissipating blaster; put water, explosives, and rubber pads into the blaster; put ordinary explosives into the main gun hole, and put the blaster with energy-gathering effect into the choke hole, which has energy dissipation The blaster is loaded into the energy dissipation hole; the water gun mud is sealed; and the micro-differential detonation. In the present invention, multiple methods such as directional crack wave damming formed by detonation of the choke hole first, directional energy absorption of the blaster in the energy dissipation hole, air hole suppressing wing crack initiation, displacement of the space to guide the explosion energy propagation of the energy dissipation hole and other methods are superimposed and applied, greatly greatly Reduces blast hazard effects.

Description

technical field [0001] The invention relates to a blasting method, in particular to a blasting method for reducing the harmful effect of explosion, and belongs to the technical field of mining construction. Background technique [0002] Because the blasting method has the advantages of convenience, quickness and economy, it is widely used in national infrastructure construction. However, ordinary blasting methods will produce harmful effects such as vibration, cracks, and flying stones, which will reduce the stability of surrounding rocks and cause damage to surrounding structures. Although the popular pre-splitting blasting and smooth blasting can improve the regularity of the surrounding rock to a certain extent, they cannot avoid damage to the surrounding rock and surrounding structures due to the random release of explosion energy and the random expansion of cracks. Contents of the invention [0003] The main purpose of the present invention is to provide a blasting m...

AI Technical Summary

Problems solved by technology

However, ordinary blasting methods will produce harmful effects such as vibration, cracks, and flying stones, which will reduce the stability of surrounding rock and cause damage to surrounding structures.

Although the popular pre-splitting blasting and smooth blasting can improve the regularity of the surrounding rock to a certain extent, due to the random release of explosion energy and the random expansion of cracks, it cannot well avoid damage to the surrounding rock and surrounding structures.

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