Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Mine earthquake risk area prediction method based on accumulated micro-earthquake response

A technology of risk area and prediction method, applied in seismology, measurement device, seismic signal processing, etc., to achieve the effect of predicting impact manifestation area, clear calculation model, universality and operability

Pending Publication Date: 2022-07-22
CHINA UNIV OF MINING & TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to effectively use the information contained in the waveform, fully consider the impact of continuous mine earthquakes on the roadway, and predict the risk area of ​​mine earthquakes has not been well resolved.

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
  • Mine earthquake risk area prediction method based on accumulated micro-earthquake response
  • Mine earthquake risk area prediction method based on accumulated micro-earthquake response
  • Mine earthquake risk area prediction method based on accumulated micro-earthquake response

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like figure 1 As shown, this embodiment provides a method for predicting a mine earthquake risk area based on cumulative microseismic responses, including:

[0041] First, determine the area to be predicted and collect the microseismic monitoring data in this area. By constructing a simplified model of the roadway and calculating the PPV (Particle Peak Velocity) distribution of the roadway, the cumulative PPV distribution of the roadway is further calculated and the danger threshold is determined. The seismic risk area includes: the collected microseismic data mainly includes the station coordinates of the microseismic monitoring system, the coordinates of the microseismic source, and the peak value of PPV picked up by different microseismic stations; the roadway is simplified as a straight line when the roadway simplified model is constructed; the statistics of the roadway microseismic damage The spatial relationship between the source size and the roadway is considere...

Embodiment 2

[0052] like Figure 2-9 As shown, this embodiment provides a prediction example of a mine earthquake risk area prediction method based on cumulative microseismic responses, including:

[0053] like figure 2As shown in the figure, on May 14, 2017, an impact event occurred during the mining of LW250106-1 working face of a mine in Huating, Gansu Province, which caused the damage of the kick drum in the range of 197-257 m in front of the working face transportation along the groove, and the height of the kick drum reached 0.2-0.3 m, and caused damage to the equipment in the inner roadway, and no casualties were reported. like image 3 As shown, in order to monitor the mine earthquake events during the mining of the working face, a microseismic station has been installed in the whole mine, especially near the LW250106-1 working face. The microseismic station can effectively monitor the vibration waveform generated by the mine earthquake event and record ( Figure 4 ), and the ...

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 discloses a mine earthquake risk area prediction method based on accumulated micro-earthquake response, and the method comprises the steps: firstly determining a to-be-predicted area, collecting the micro-earthquake monitoring data of the area, constructing a tunnel simplified model, calculating the PPV distribution of a tunnel, further carrying out the statistics of the accumulated PPV distribution of the tunnel, and determining a danger threshold value, and predicting the mine earthquake risk area according to the tunnel accumulated PPV response frequency distribution. The method provided by the invention has the advantages of clear calculation model and strong universality and operability, and can effectively predict the impact display area.

Description

technical field [0001] The invention belongs to the technical field of coal mining and coal mine safety, and in particular relates to a mine earthquake risk area prediction method based on cumulative microseismic response. Background technique [0002] Mine earthquakes are produced along with coal mine production activities, and the hazards caused by mine earthquakes can only be avoided as far as possible. Since the underground coal mine workers and machinery are located in the roadway, how to evaluate the impact of the continuous mine earthquake on the roadway and then predict the risk area of ​​the mine earthquake is the first. [0003] In recent years, microseismic systems have been widely deployed in rockburst mines to capture mine seismic signals, through which clear waveforms of vibration signals can be obtained. The microseismic waveform contains rich information of mine earthquake, such as the amplitude, duration and vibration frequency of the waveform, which can re...

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): G01V1/28G01V1/00
CPCG01V1/288G01V1/01
Inventor 刘耀琪曹安业白贤栖白金正周坤友阚吉亮田鑫元杨旭王常彬薛成春郭文豪
Owner CHINA UNIV OF MINING & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com