Energy-gathering joint-cutting pipe

Abstract

The invention relates to an energy-gathering joint-cutting pipe. The energy-gathering joint-cutting pipe comprises a pipe body, a first sleeve fixing hole, centering foam, energy-gathering joint-cuttings, air interval fixing holes, fixing screws, a second sleeve fixing hole, a sleeve and a detonator wire hole, wherein the energy-gathering joint-cuttings are located on the two radial sides of energy-gathering pipes and are symmetrical about the central axes of the energy-gathering pipes; the sleeve is a connecting piece used for connecting the two energy-gathering pipes and needs to be matched with the fixing screws for use; the sleeve fixing holes are located in the two ends of the pipe bodies of the energy-gathering pipes and the sleeve; and the centering foam is connected with the pipe bodies of the energy-gathering pipes in an adhesive mode, and the energy-gathering pipes are fixed to the central positions of blast holes. The steel energy-gathering pipes improve the constraint effect on explosives, so that the energy-gathering effect is more remarkable; and non-coupling explosive charging and radial interval explosive charging are adopted in the blast holes, the centering foam is used for guaranteeing that the circle centers of the energy-gathering pipes coincide with the circle centers of the blast holes, and the directions of the energy-gathering joint-cuttings are consistent with the pre-splitting direction, so that the unit consumption of the explosives is greatly reduced, blasting vibration is effectively controlled, and meanwhile, the construction cost is reduced.

Description

Technical field: [0001] The invention relates to the field of blasting, in particular to an energy-gathering slit pipe. Background technique: [0002] In engineering projects such as mine mining and tunnel forming, blasting operations are required, but general blasting operations have fewer holes and more charges, resulting in a series of engineering problems, such as rock over-excavation and under-excavation, poor light blasting effect, Excessive blasting vibration, etc. Especially when blasting operations are carried out in complex environments, harmful effects such as blasting vibration, blasting flying rocks, and noise are difficult to control, which can easily cause loss of life and property. Therefore, it is an urgent problem to be solved to control the harmful effects such as blasting vibration while ensuring the blasting effect. Invention content: [0003] The object of the present invention is to provide an energy-gathering slit pipe, which aims to ensure the bl...

AI Technical Summary

Problems solved by technology

[0002] In engineering projects such as mine mining and tunnel forming, blasting operations are required, but general blasting operations have fewer holes and more charges, resulting in a series of engineering problems, such as rock over-excavation and under-excavation, poor light

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