Blast tube of tunnel

A technology of blasting tubes and tunnels, applied in the field of blasting tubes, which can solve the problems of high labor intensity of blasting construction personnel, prolonging the operation time of blasting procedures, and difficulty in popularization and application, and achieves the effects of convenient and quick loading, saving explosives, and small damping

Active Publication Date: 2012-09-19
NO 1 ENG CO LTD OF CR11BG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, hydraulic blasting is a change to the structural form. For tunnel blasting, there are still complicated processes, inconvenient operation, prolonging the operation time of the blasting process, high labor intensity for blasting construction personnel, and hidden dangers of blasting safety, so it is difficult to popularize use

Method used

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specific Embodiment approach

[0014] in figure 1 In the prior art, blast holes are drilled at the construction site, explosives are continuously loaded in the blast holes, the detonating tube is loaded into the explosives, and the detonating index is indexed out of the blast hole. The upper hole of the blast hole is not backfilled and blocked, but directly The detonating tube exploded the explosive in the blasthole.

[0015] in figure 2 In the prior art, explosives are spaced in the blast hole, the detonating tube is installed in the explosive and the detonating index is out of the blast hole. The upper hole of the blast hole is not backfilled and blocked, and the detonating tube is directly ignited to make the blast hole. The explosive inside exploded.

[0016] In the present invention image 3 , Figure 5 In the embodiment, first install and fix the left end cap 7 with the tapered head on the left end of the plastic pipe 8. The first cylindrical explosive 2 is installed in the pipe hole at the left end of t...

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Abstract

The invention discloses a blast tube of a tunnel. The blast tube is characterized in that explosive, supporting rods, a detonator, a detonating tube, a detonating cord, a water bag and a tamping plug are fixedly formed and are assembled in a plastic tube according to a certain sequence so as to form the blast tube of the tunnel; the utilization rate of blast holes is high, so that explosive is saved, the explosive force is strong and the environmental pollution can not be caused; the diameter of the section of the plastic tube is slightly less than the diameter of the blast hole, and the inner diameter of the plastic tube body is more than the diameters of the explosive, the tamping plug and the water bag. The plastic tube is good in flexibility, higher in strength, convenient for transportation, less in dampness when in filling, and is convenient for an operator to put assembled explosive tubes into the blast holes, so that the blast tube is convenient and fast in filling and safe in detonation.

Description

Technical field [0001] The invention relates to a blasting pipe, in particular to a blasting pipe for tunnels. Background technique [0002] At present, conventional blasting of known tunnels uses an air gun to drill a blast hole directly in the tunnel. After filling the blast hole with explosives, the blast hole is blocked without backfilling or the blast hole is blocked with paper. With the advancement of blasting technology, water pressure blasting technology is used in tunnel blasting. The water pressure blasting technology changes the structure of the charge blockage. The water pressure blasting is designed in the number of blast holes, blast hole depth, blast hole distribution and initiation sequence. The above is exactly the same as conventional blasting, except that some improvements have been made in the charge volume and charge structure of each blast hole, that is, the charge volume of each blast hole is appropriately reduced, and a water bag (water A bag means to pou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/00
Inventor 田国强周劲松周晗周文清黄卫东彭卿占勇
Owner NO 1 ENG CO LTD OF CR11BG
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