Intelligent transient electromagnetic detection and real-time early warning method for tunneling roadway

A transient electromagnetic and roadway technology, applied in the field of mine geophysical detection, can solve the problems of time-consuming and laborious, poor correlation of detection results, and lack of joint comparative analysis.

Active Publication Date: 2021-11-19
CHINA UNIV OF MINING & TECH
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As for the head-on that is being excavated, as the roadway continues to be excavated, geophysical personnel need to repeatedly enter the site, which is time-consuming and laborious, which seriously affects the excavation efficiency
In addition, each detection interprets a range of nearly 100 meters, and the resu

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
  • Intelligent transient electromagnetic detection and real-time early warning method for tunneling roadway
  • Intelligent transient electromagnetic detection and real-time early warning method for tunneling roadway
  • Intelligent transient electromagnetic detection and real-time early warning method for tunneling roadway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be further described below.

[0032] Such as figure 1 Shown, concrete steps of the present invention are:

[0033] Step 1. During the excavation process of the roadheader, it is composed of an alternate cycle of excavation period and intermittent period. During each interval, the excavator removes the portable transient electromagnetic detection equipment placed on the roadheader, and then removes the portable transient electromagnetic detection equipment. The front of the coil of the variable electromagnetic detection equipment faces the side of the roadway, and is fixed at the front of the roadway after being deployed;

[0034] Step 2. Retreat the roadheader head-on for a certain distance to prevent the roadheader from seriously interfering with the detection results;

[0035] Step 3. Turn on the portable transient electromagnetic detection equipment and start a transient electromagnetic detection on the side of the coil facing the front. ...

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 an intelligent transient electromagnetic detection and real-time early warning method for a tunneling roadway; the method comprises the following steps of: detecting the head-on position and two side walls of a current roadway in an intermittent period by adopting portable transient electromagnetic detection equipment, and transmitting detection data to a computer on the ground; generating an apparent resistivity cross-section diagram obtained by the detection; carrying out dangerous area division on the apparent resistivity cross-section diagram according to the distribution condition of the apparent resistivity value R; when the heading machine enters the intermittent period again, repeating the process at the moment, obtaining an apparent resistivity cross-section diagram detected this time, enabling the apparent resistivity cross-section diagram detected this time and an apparent resistivity cross-section diagram obtained last time to be subjected to synthetic analysis, and finally obtaining a synthesized apparent resistivity cross-section diagram; and repeating the steps for many times, and finally importing the apparent resistivity cross-section diagram obtained in each intermittent period and the danger level of each divided area into the corresponding position of the model for real-time display and updating. Therefore, real-time early warning is carried out on the abnormal geological structure in front of the head-on part in the roadway tunneling process.

Description

technical field [0001] The invention relates to a mine geophysical detection method, in particular to a tunneling roadway intelligent transient electromagnetic detection and real-time early warning method. Background technique [0002] In the coal mines currently in use, in order to ensure the safety of roadway excavation and prevent the occurrence of water damage accidents, it is necessary to do a good job in the advance detection of the roadway head. Mine transient electromagnetic method is widely used in coal mine excavation advance detection process because of its sensitivity to low-resistance body response and the advantages of light and high-efficiency multi-turn small loop device. [0003] For the existing transient electromagnetic advanced detection technology, the transient electromagnetic advanced detection requires geophysical personnel to carry equipment into the head for detection. After each detection is completed, the data is transmitted to the ground, and the...

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): G01V3/28G01V3/38
CPCG01V3/28G01V3/38
Inventor 王勃黄兰英李兴兴吕宪状王一帆王刚胡思源陈泓云曾林峰李韵晨
Owner CHINA UNIV OF MINING & TECH
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