Unlock instant, AI-driven research and patent intelligence for your innovation.

Cooperated protection method for blasting fly stones and blasting vibration

A blasting vibration and flying stone technology, applied in blasting and other directions, can solve problems such as the complexity of blasting seismic waveforms, mutual interference and overlapping of wave groups, damage to equipment and personnel, etc., to achieve simple and easy to implement procedures, enhance attenuation effects, and prevent collapse Effect

Pending Publication Date: 2018-09-21
WUHAN UNIV OF SCI & TECH +1
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different propagation paths and delay times of each wave, the wave groups interfere and overlap each other, resulting in the complexity of blasting seismic waveforms
In addition, the energy generated by the explosion of the explosives acts on the broken rocks, making them have a high initial velocity, and the flying stones are thrown around after gaining the initial velocity, which is very low in controllability and often impacts the surrounding area. damage and casualties to buildings, equipment and personnel

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
  • Cooperated protection method for blasting fly stones and blasting vibration
  • Cooperated protection method for blasting fly stones and blasting vibration
  • Cooperated protection method for blasting fly stones and blasting vibration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A collaborative protection method for blasting flying rocks and blasting vibration. The steps of the collaborative protection method described in this embodiment are:

[0039] In this embodiment, blasting excavation needs to be carried out on a high and steep slope, and there is a protected object to be protected 90 meters away from the blasting area. The protected object is a building complex with a length of 150 meters and a height of 41 meters. During the blasting construction, the absolute safety of the protected object must be guaranteed, and the possible safety impact of blasting flying rocks and blasting vibration on the protected object must be considered at the same time.

[0040] Step 1. Excavate shock absorbing ditch

[0041] Dig a shock-absorbing ditch between the explosion source and the protected object, such as figure 1 As shown, the size of the damping groove 6 is B 1 ×H 1 × L 1 .

[0042] Step 1: B 1 Indicates the width of the damping groove 6, B...

Embodiment 2

[0062] A collaborative protection method for blasting flying rocks and blasting vibration. The steps of the collaborative protection method described in this embodiment are:

[0063] In this embodiment, a high and steep slope needs to be excavated by blasting. There is a protected object to be protected 100 meters away from the blasting area. The protected object is a large oil storage tank with a diameter of 70 meters and a height of 25 meters. The absolute safety of the oil storage tank must be guaranteed during blasting construction, so the possible safety impacts of blasting flying rocks and blasting vibration on the oil storage tank must be considered at the same time.

[0064] Step 1. Excavate shock absorbing ditch

[0065] Excavate a damping ditch 6 between the explosion source and the object to be protected, and the size of the damping ditch 6 is B 1 ×H 1 × L 1 .

[0066] Step 1: B 1 Indicates the width of the damping groove 6, B 1 = 2 ~ 2.5m;

[0067] h 1 Ind...

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

No PUM Login to View More

Abstract

The invention relates to a cooperated protection method for blasting fly stones and blasting vibration. The method is characterized in that a vibration reduction ditch (6) with the length being 1.1 to1.3 times of a protection article is dug between a blasting source and a protected object; a main body framework (2) with the length and the height being greater than the length and the height of theprotected object is bound by a bamboo pole; a layer of bamboo fence (1) is suspended at one side of the main body framework (2) to prepare a protection bamboo bar frame. The protection bamboo bar frame is vertically arranged in the middle in the vibration reduction ditch (6); one side for hanging the bamboo fence (1) is near the blasting source; bamboo rods (5) are horizontally bound on the protection bamboo bar frame below the ground surface; the binding space of the bamboo rods (5) in the length direction of the vibration reduction ditch (6) and the binding space in the height direction ofthe vibration reduction ditch (6) are (0.2 to 0.3)m*(0.2 to 0.3)m. When the height of the bamboo bar frame above the ground is greater than or equal to 10m, steel wire rope suspension cables (3) are arranged at the two sides of the protection bamboo bar frame. The work procedures are simple and convenient; the implementation is easy; the protection materials are saved; the protection effect is good.

Description

technical field [0001] The invention belongs to the technical field of cooperative protection of earthwork blasting. In particular, it relates to a cooperative protection method for blasting flying stones and blasting vibration. Background technique [0002] Among the many hazards caused by blasting construction, blasting vibration and blasting flying rocks are the main hazards. When the explosive explodes in the rock mass, a part of the energy causes disturbance to the medium around the explosive and propagates outward in the form of waves. The main cause of rock fracture during blasting is the action of body waves, while the main cause of blasting earthquake damage is the action of surface waves. In production, most of the step blasting is multi-row millisecond differential blasting. Due to the different propagation paths and delay times of each wave, the wave groups interfere and overlap each other, resulting in the complexity of the blasting seismic waveform. In addi...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F42D5/00
CPCF42D5/00
Inventor 钟冬望司剑峰李琳娜何理周俊汝熊祖钊金沐李雷斌缪晨辉张建军涂圣武卢哲吕权杜泉
Owner WUHAN UNIV OF SCI & TECH