Method for eliminating rock burst
A rockburst and rock formation technology, applied in the field of rockburst elimination, can solve problems such as high risk and poor environmental protection, and achieve the effects of ensuring life safety, improving efficiency, and improving conversion efficiency
Active Publication Date: 2020-09-25
西安闪光能源科技有限公司
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a method for eliminating rockbursts, so as to solve the problems of high danger and poor environmental protection in eliminating hidden dangers of rockbursts by drilling and blasting
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] Below in conjunction with accompanying drawing and specific embodiment the content of the present invention is described in further detail:
[0030] A method for eliminating rockbursts includes an energy converter 12 and an orifice device 11 .
[0031] like figure 2 As shown, the energy converter 12 includes a ground electrode 1 , a metal wire 2 , a high voltage electrode 3 , an insulating support 4 , a casing 5 and a cable interface 6 .
[0032] The shell 5 is a cylindrical structure, and its interior is hollow. The high-voltage electrode 3 is fixed on the end of the shell 5 through the insulating support 4. The cable at the end of the cable interface 6 passes through the body of the shell 5, the insulating support 4 and the rear end of the high-voltage electrode 3. Connection, the ground electrode 1 is arranged along the length direction of the casing 5 and is connected to the casing 5 , and the front end of the ground electrode 1 is opposite to the high voltage ele...
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
| Property | Measurement | Unit |
|---|---|---|
| Strength | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a method for eliminating rock burst, and aims to solve the problems of the high risk and the environmental protection property in the elimination of rock burst hidden dangersby a drilling and blasting method. The method for eliminating rock burst comprises the following steps of: S1, setting the positions and number of drill holes in a rock stratum, and drilling the drillholes in the rock stratum, wherein the drill holes are arranged from the top surface of a roadway to a high-stress area of the rock stratum, and the drill holes pass through the high-stress area; S2,installing an orifice device in each drill hole, and then filling the drill holes with water; S3, connecting an energy converter with a pulse power driving source, and then placing the energy converter in the drill holes; and S4, starting the pulse power driving source to discharge electricity to the energy converter, and cracking the rock stratum by shock waves generated by the energy converter,wherein the intensity of the shock waves is 210-219 MPa, and cracks generated by the plurality of drill holes form a crack net in the high-stress area, so that the stress is unloaded in a large area,that is, the rock burst is eliminated.
Description
technical field [0001] The invention belongs to the technical field of mine engineering, and in particular relates to a method for eliminating rockburst. Background technique [0002] Rockburst refers to the phenomenon of sudden failure in the surrounding rock mass in the deep part of underground mining or in the area of high structural stress. The reason for the occurrence is that the strain energy accumulated in the surrounding rock mass is released suddenly and violently, resulting in brittle fracture of the rock mass like an explosion. Rockbursts cause a large number of rocks to fall, and produce loud noises and air wave impacts. Not only can mines be destroyed, but the shock waves can endanger ground buildings. Rockburst geological disasters are characterized by suddenness, high risk, and difficulty in predicting, which bring great harm to personal safety and mechanical equipment, and seriously affect the construction progress. It is one of the worldwide underground ...
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
Login to View More IPC IPC(8): E21F17/00E21B7/15E21B7/24
CPCE21F17/00E21B7/15E21B7/24
Inventor 张永民汤俊萍刘美娟张硕
Owner 西安闪光能源科技有限公司