Composite reflection energy concentration and buffering energy dissipation device and blast construction method based on device

A technology of composite reflection and energy dissipation device, applied in blasting and other directions, can solve the problems of poor rock crushing effect, large damage to the rock mass retained at the bottom of the hole, and limited blasting area, so as to improve blasting flatness, reduce blasting damage, and ensure The effect of rock mass

Pending Publication Date: 2018-10-12
河南省水利第二工程局集团有限公司 +2
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing blasting technology, in the traditional deep hole step blasting, a 1-2m thick protective layer is often reserved, and then the protective layer is blasted and excavated with small-aperture drilling and small explosive rolls, and finally with manual prying, to reach the construction site. base elevation, the construction efficiency is very low, and the retained rock mass at the bottom of the hole is greatly damaged; the effect of horizontal pre-splitting or horizontal smooth surface blasting excavation is better, but it is difficult to drill horizontal holes, and it must be cleaned before each drilling. Clean the blasting slag in front of the airport, the operation is troublesome, and limited by the length of one drilling, the blasting area is limited, the construction eff

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite reflection energy concentration and buffering energy dissipation device and blast construction method based on device
  • Composite reflection energy concentration and buffering energy dissipation device and blast construction method based on device
  • Composite reflection energy concentration and buffering energy dissipation device and blast construction method based on device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Composite reflective energy gathering and buffering energy dissipation device 20, including buffering energy dissipating cushion layer, rigid cushion layer 23, reflecting energy gathering cushioning cushion layer 25 and energy gathering jet 38 arranged sequentially from bottom to top; said buffering energy dissipating cushion layer It includes a cylindrical steel shell 21 and a low-density buffer energy-dissipating core 22 filled in the steel shell 21; a rigid cushion 23 is fixedly connected above the cushion energy-dissipating cushion, and the rigid cushion 23 is a circular plate; the rigid cushion The top of the layer 23 is bolt-connected with a reflective energy-gathering cushion layer 25, and the reflective energy-gathering cushion layer 25 gradually expands from top to bottom in a trumpet-shaped structure; The energy-gathering jet 38 includes a shape-gathering drug cover 24 and a waveform adjuster 27. The shape-gathering drug-type cover 24 is a hollow thin shell tha...

Embodiment 2

[0049] Composite reflective energy gathering and buffering energy dissipation device 20, including buffering energy dissipating cushion layer, rigid cushion layer 23, reflecting energy gathering cushioning cushion layer 25 and energy gathering jet 38 arranged sequentially from bottom to top; said buffering energy dissipating cushion layer It includes a cylindrical steel shell 21 and a low-density buffer energy-dissipating core 22 filled in the steel shell 21; a rigid cushion 23 is fixedly connected above the cushion energy-dissipating cushion, and the rigid cushion 23 is a circular plate; the rigid cushion The top of the layer 23 is bolt-connected with a reflective energy-gathering cushion layer 25, and the reflective energy-gathering cushion layer 25 gradually expands from top to bottom in a trumpet-shaped structure; The energy-gathering jet 38 includes a shape-gathering drug cover 24 and a waveform adjuster 27. The shape-gathering drug-type cover 24 is a hollow thin shell tha...

Embodiment 3

[0057]The composite reflective energy gathering and buffering energy dissipation device 20 is different from Embodiment 1 in that the outer diameter of the buffering energy dissipating pad layer is equal to the outer diameter of the rigid pad layer 23 and the bottom of the energy gathering jet 38 , are 8 / 9 times of the diameter of the blast hole, which is 8cm; the energy-dissipating cushion layer is 20cm high; the thick cushion layer 23 is 1.5cm; , the angle α is 62°, and the height of the reflective and energy-gathering cushion layer 25 is 7.5 cm. The length of the composite reflective energy gathering and buffer energy dissipation device 20 is equal to the sum of the height of the reflective energy gathering cushion layer 25 (7.5cm), the thickness of the rigid cushion layer 23 (1.5cm) and the height of the buffer energy dissipation cushion layer (20cm) , is 29cm. Others are all the same as in Example 1. The blasting effect of the device is better, the blasting cracks of th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of engineering blasting and provides a composite reflection energy concentration and buffering energy dissipation device. The composite reflection energy concentration and buffering energy dissipation device comprises a buffering energy dissipation cushion layer, a rigid cushion layer, a reflection energy concentration buffering cushion layer and an energy conservation jet device. During explosive initiation, energy concentration jet flow and reflection energy concentration jet flow produced by buses of the energy conservation jet device and the reflection energy concentration buffering cushion layer have the dual energy conservation effect, a horizontal fracture line of a rock at the bottoms of blast holes can be increased, and the blasting effect can be enhanced. A composite cushion layer composed of the reflection energy concentration buffering cushion layer, the rigid cushion layer and the buffering energy dissipation cushion layer has the three-time energy dissipation buffering effect and can reduce explosion energy and blasting damage to the bottoms of the blast holes and guarantee the quality of the rock of the bottoms of the holes. A blast construction method comprises the steps of firstly, drilling rows of blast holes in a rock body; secondly, leveling the bottoms of the blast holes; thirdly, stacking the composite reflection energy concentration and buffering energy dissipation devices, main charge explosives, detonating materials and blocking sections in the blast holes; and finally, conducting initiation. Through themethod, the blasting damage to the bottoms of the blast holes can be reduced, the blasting flatness of a foundation base surface can be improved, and the blasting effect can be improved.

Description

technical field [0001] The invention relates to the technical field of engineering blasting, in particular to a composite reflection energy gathering and buffering energy dissipation device used at the bottom of a blast hole and a blasting construction method based on the device. Background technique [0002] The blasting excavation of the rock dam foundation surface, the side slope of the horse road, and the protective layer of the tunnel floor in water conservancy and hydropower projects has always been a difficult point in engineering blasting construction. In the existing blasting technology, in the traditional deep hole step blasting, a 1-2m thick protective layer is often reserved, and then the protective layer is blasted and excavated with small-aperture drilling and small explosive rolls, and finally with manual prying, to reach the construction site. base elevation, the construction efficiency is very low, and the retained rock mass at the bottom of the hole is grea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F42D3/04F42D5/045
CPCF42D3/04F42D5/045Y02A30/30
Inventor 杜郧隆罗福生张国峰杜津岩郝二峰杨秋贵杜子纯胡玲玲陈浩
Owner 河南省水利第二工程局集团有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap