Tuff blasting blast hole arrangement structure and detonation method

A technology of tuff and blast hole, which is applied in the field of tuff blasting blast hole arrangement structure and detonation, which can solve the problems of rock breaking, rock not being too large, rock not being too broken, etc., and achieve the effect of reducing the volume of rock

Pending Publication Date: 2020-03-27
中铁五局集团路桥工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the construction of the Taipingling Nuclear Power Plant in Huizhou, Guangdong, it is necessary to blast the tuff, and then transfer the blasted tuff to the sea for reclamation. However, the rock should not be too broken to avoid being washed away by the sea. It is too large to facilitate transportation, but under the existing blasting technology, the blasting material rate of tuff is low, and the rock after blasting is either too large or too broken

Method used

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  • Tuff blasting blast hole arrangement structure and detonation method
  • Tuff blasting blast hole arrangement structure and detonation method
  • Tuff blasting blast hole arrangement structure and detonation method

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Embodiment 1

[0038] Implementation Example 1: Reference Figure 1 to Figure 6 , A tuff blasting blasthole arrangement structure, comprising: blastholes 10, the blastholes 10 form an array of more than 2*2, the row and column spacing of blastholes 10 are the same, and two adjacent rows of blastholes 10 have 1 / 2 in the horizontal direction. The dislocation of the 2-column spacing, the gun holes 10 spaced one row apart from each other are aligned in the transverse direction, and each gun hole 10 is filled with the medicine roll 1.

[0039] The present invention uses an array of more than 2*2 blastholes 10, and places a smaller-equivalent pill roll 1 in each blasthole 10 instead of placing a large-equivalent pill roll 1 in one blasthole 10, and the pill roll 1 is placed at a single point The released energy is small, to avoid the tuff crushing, and the tuff is broken by stress waves generated by the blasting of multiple blastholes in the 10 array of blastholes, and the large pieces of tuff are...

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PUM

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Abstract

The invention discloses a tuff blasting blast hole arrangement structure. The structure comprises blast holes, wherein the blast holes form an array of 2*2 or above, row and column intervals of the blast holes are the same, every two adjacent rows of blast holes are staggered by 1 / 2 of the column interval in the transverse direction, the blast holes spaced by one row are aligned in the transversedirection, and each blast hole is filled with cartridges. The structure is advantaged in that a problem that in the prior art, the tuff blasting material forming rate is low, and a tuff blasting material forming rate cannot be used for sea reclamation or is inconvenient to transport is solved.

Description

technical field [0001] The invention relates to the technical field of blasting, in particular to a blasthole arrangement structure and a detonation method for tuff blasting. Background technique [0002] Tuff is a kind of pyroclastic rock, its hardness can reach more than 100Mpa, but the high hardness also causes tuff to be easily broken into fine particles during blasting. The Taipingling Nuclear Power Plant in Huizhou, Guangdong needs to blast the tuff during construction, and then transfer the blasted tuff to the sea for reclamation. However, during the reclamation, the rock must not be too broken to avoid being washed away by the sea, and the rock must not be too broken. It is too large to facilitate transportation, but under the existing blasting technology, the rate of blasting material for tuff is low, and the blasted rock is either too large or too broken. SUMMARY OF THE INVENTION [0003] In order to solve the above shortcomings and deficiencies of the prior art...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/08F42D1/00F42D3/02
CPCF42D1/00F42D1/08F42D3/02
Inventor 蒲鹏程王福云韩玄博赵怀烁曾作良简正彬吴要亮
Owner 中铁五局集团路桥工程有限责任公司
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