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Dual-area slotting blast hole arrangement structure and blasting sinking method applied to structure

A technology for arranging structures and cutting holes, which is applied in the field of mine blasting to achieve the effects of improving applicability, reducing the amount of explosives, and increasing the height of blasting wells

Active Publication Date: 2017-05-31
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to provide a dual-zone blasting system with large height, high reliability, small and easy drilling, low unit consumption and small blasting vibration in view of the shortcomings of the existing patio blasting technology. Cutting Blast Hole Arrangement Structure and Its Applied Blasting Well Forming Method

Method used

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  • Dual-area slotting blast hole arrangement structure and blasting sinking method applied to structure
  • Dual-area slotting blast hole arrangement structure and blasting sinking method applied to structure
  • Dual-area slotting blast hole arrangement structure and blasting sinking method applied to structure

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Embodiment

[0043] see figure 1 and figure 2 , a dual-zone cutting blast hole layout structure in the illustration is a preferred solution of the present invention. Two blasting cut hole areas are arranged in the center of the free surface 100 of the patio, and a Circle the peripheral hole 6 to surround the free surface of the patio.

[0044] The centers of the two blasting cut hole areas are respectively the first center charge hole 1 and the second center charge hole 2, and a number of empty holes 5 are set around the first center charge hole 1 or the second center charge hole 2 respectively. , forming two adjacent circular or regular polygonal blasting cut hole areas, and there is at least one shared empty hole between adjacent blasting cut hole areas. Such as figure 1 As shown, the first central charging hole 1 and the second central charging hole 2 in this embodiment are arranged symmetrically with the center of the patio free surface 100, and in the first central charging hole 1...

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Abstract

The invention discloses a dual-area slotting blast hole arrangement structure and a blasting sinking method applied to the structure. The structure comprises two blasting slotting hole areas symmetrically arranged with respect to the center of the free face of a courtyard, each blasting slotting hole area comprises a center charging hole and a plurality of empty holes arranged around the center charging hole; a ring of peripheral holes are formed in the periphery of each blasting slotting area, the center charging holes and the peripheral hoes are filled with explosive charges, and a plurality of auxiliary holes are formed between the blasting slotting areas and the peripheral holes and are filled with explosive charges. The method is simple in working procedure, operation is easy, the one-time sinking height is large, reliability is high, the sinking effect is good, the number of drilled holes is small, energy consumption is low, and the blasting vibration is small.

Description

technical field [0001] The invention belongs to mine blasting technology, and in particular relates to a blasting well-forming method, in particular to a blasting well-forming method with a double-zone cutting blasthole arrangement structure and its application. Background technique [0002] Raise excavation is the main link in the construction of underground mines, tunnel ventilation, and water conservancy and drainage. It is recognized as a key technology due to its high construction requirements and difficult operations. The traditional construction methods of raising excavation include common method, hanging tank method, climbing tank method, etc. However, these methods cannot be widely used due to serious defects. High, good applicability and economy, and it has become the main way of raising wells at present. [0003] At present, domestic and foreign drilling and blasting methods for patio construction are divided into two types according to the blasting technology: t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D3/04F42D1/00
CPCF42D1/00F42D3/04
Inventor 苟永刚史秀志邱贤阳陈辉周健陈新
Owner CENT SOUTH UNIV
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