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High-voltage line iron tower energy-gathered blasting method

A technology of high-voltage lines and iron towers, which is applied in the field of energy-concentrated blasting of high-voltage line iron towers, to achieve the effects of wide material sources, convenient installation, and elimination of potential safety hazards

Pending Publication Date: 2021-04-02
GUIZHOU XINLIAN BLAST ENG GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of normal towers, manual tower removal is generally used to dismantle the tower from top to bottom. For dangerous towers, personnel are prohibited from working on the tower. At present, there is no relevant case of such tower dismantling in China.

Method used

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  • High-voltage line iron tower energy-gathered blasting method
  • High-voltage line iron tower energy-gathered blasting method
  • High-voltage line iron tower energy-gathered blasting method

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Embodiment Construction

[0024] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0025] refer to figure 1 , figure 2 , image 3 , Figure 4 ; In Louruo Village, Xiameng Township, Li County, Aba Prefecture, the object of demolition is the 220kV Mengwen First and Second Line 011# transmission tower.

[0026] The whole tower is 56.5 m high, of which the height of the tower is 37.5 m, and the height of the tower head is 19 m.

[0027] The leftmost side of the tower is the supporting leg of tower B, which has been severely damaged. According to the damage visible to the naked eye, in addition to the damage to the tower itself, serious geological hazards have also appeared in the base of the tower. The mountain below the tower has become a landslide, sliding on the surface The cracks generated by the shifted surface are clearly visible.

[0028] The demolition object is a typical steel structure iron tower. According to the su...

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Abstract

The invention relates to a high-voltage line iron tower energy-gathered blasting method. The high-voltage line iron tower energy-gathered blasting method comprises the following steps of determining notch positions on four angle steel supporting legs of an iron tower according to the actual condition of the high-voltage line iron tower; energy-gathered blasting devices are manufactured and filledwith explosives; an initiating detonator extends into a charging barrel from one end of the charging barrel and is fixed by an adhesive tape; and the energy-gathered blasting devices are installed atthe notches, and all the notches are detonated at the same time. The method is suitable for emergency demolition of the high-voltage line dangerous tower, potential safety hazards existing in other demolition modes are eradicated, safety guarantee is provided, the technical difficulty of large metal component cutting is lowered, the blasting material source is wide, the manufacturing cost is low,and field manufacturing and installation are convenient.

Description

technical field [0001] The invention relates to blasting demolition of iron towers, in particular to an energy-gathering blasting method for iron towers of high-voltage lines. Background technique [0002] In the mountainous areas of western my country, most of the high-voltage line towers are built on the top or halfway up the mountain. If there is a landslide tendency on the mountain, the tower will become a dangerous tower and needs to be demolished. In the case of normal towers, manual tower removal is generally used to dismantle the tower from top to bottom. For dangerous towers, personnel are prohibited from working on the tower. At present, there is no relevant case of such tower dismantling in China. Contents of the invention [0003] The invention provides an energy-concentrating blasting method for a high-voltage line iron tower, which adopts energy-concentrating cutting blasting. [0004] In order to achieve the above object, the present invention adopts the fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/00F42D3/02
CPCF42D1/00F42D3/02
Inventor 赵明生李杰余红兵周建敏张力康强
Owner GUIZHOU XINLIAN BLAST ENG GRP
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