Energy concentration shell for permafrost excavation

A technology of accumulating energy and frozen soil, which is applied to the energy-forming bomb. It can solve the problems of inapplicable permafrost excavation and the inability to take into account radiation and directional effects of shaped bombs.

Inactive Publication Date: 2017-09-29
SINOHYDRO FOUND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a shaped energy bomb used for excavation in frozen soil, which solves the problem that the existing shaped energy bomb cannot take into account both radiation and orientation, and is not suitable for excavation in frozen soil

Method used

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  • Energy concentration shell for permafrost excavation

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing.

[0019] Such as figure 1 As shown, the shaped bomb used in permafrost excavation of the present invention includes a housing 1, a fuze device 2, a partition 3 and an energy-gathering cover 4, and the top center of the housing 1 is the fuze device 2. An energy-gathering cover 4 is arranged inside the shell 1, and the energy-gathering cover 4 is made of metal, such as cast copper or cast iron, and an explosive 5 is filled between the energy-gathering cover 4 and the shell 1, for example, the explosive 5 is a black ladder explosive. A partition 3 is arranged horizontally in the explosive 5 below the top of the shell 1, that is, the partition 3 is embedded in the explosive 5, and the partition 3 is made of wood material or clay mixed with sawdust. Specifically, the separator 3 is made of clay mixed with sawdust, wherein the mass of clay accounts for 70-90%, and the balance is s...

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Abstract

The invention discloses an energy concentration shell for permafrost excavation, and relates to the technical field of blasting. The problems that an existing energy concentration shell cannot give consideration to the radiation and directing effects both, and is not suitable for permafrost excavation are solved. According to the technical scheme, the energy concentration shell for permafrost excavation comprises a shell, a fusing device, a separating plate and an energy concentration cover, and the fusing device is arranged in the center of the top of the shell; the energy concentration cover made of metal materials is arranged in the shell, the position between the energy concentration cover and the shell is filled with explosive, and the separating plate is horizontally arranged in the explosive below the top of the shell; and the upper section of the energy concentration cover is a spherical arc cover ring, and the lower section of the energy concentration cover is in a circular truncated cone shape and is connected with the bottom of the shell. The energy concentration cover is matched with the separating plate, the explosive performance reaches the radiation and directing dual spreading effects, punching can be carried out in permafrost, the hole bottom is in a kettle shape after blasting is carried out, explosive kettle method blasting next time is facilitated, the explosive using rate is improved, the number of drilled holes is remarkably decreased, the permafrost excavation efficiency is improved, and in addition, the safety is improved.

Description

technical field [0001] The invention relates to the technical field of blasting, in particular to a shaped energy bomb suitable for use in permafrost in alpine regions. Background technique [0002] Seasonally frozen soil and permafrost exist in alpine regions such as Qinghai and Tibet. The construction of highways and water conservancy in alpine regions needs to solve the problem of excavation in permafrost. According to the special geological properties of permafrost, the main construction methods currently used are drilling blasting and shaped bomb blasting. [0003] The drilling and blasting construction method has the following deficiencies: first, under the thermal melting effect of drilling, the drilling efficiency in permafrost will be reduced; The orifice in the soil layer is easy to collapse; third, the explosives are easy to deteriorate due to thawing during the day and freezing at night, resulting in dumb guns. There are safety hazards in the use of blasting equ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42B3/08F42B3/22
CPCF42B3/08F42B3/22
Inventor 王黎孙士国雷博符晓军李宝松赵志健张利锋李明善马江飞杨金华康贺佘夏刘典忠陈龙
Owner SINOHYDRO FOUND ENG
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