Coal roadway stratified roof anchorage body instability mode detector and control method thereof

An anchoring body and detector technology, which is applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, instruments, measuring devices, etc., can solve problems such as poor non-destructive testing results

Inactive Publication Date: 2017-05-31
SHANXI DATONG UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a coal roadway layered roof anchorage instability mode detector and control method to solve the problem of poor non-destructive detection of coalway layered roof anchorages in the prior art

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
  • Coal roadway stratified roof anchorage body instability mode detector and control method thereof
  • Coal roadway stratified roof anchorage body instability mode detector and control method thereof
  • Coal roadway stratified roof anchorage body instability mode detector and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] figure 1 A structural schematic diagram of a coal roadway layered roof anchorage instability mode detector provided by an embodiment of the present invention; figure 2 It is a schematic diagram of the structure of a layered roof anchor in a coal roadway provided by an embodiment of the present invention. Such as figure 1 with figure 2 As shown, the embodiment of the present invention provides a coal roadway layered roof anchorage instability mode d...

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
widthaaaaaaaaaa
heightaaaaaaaaaa
densityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a coal roadway stratified roof anchorage body instability mode detector, and relates to the technical field of coal mine safety. The detector is used for solving the problem of poor nondestructive detection effect of coal roadway stratified roof anchorage bodies in the prior art. The detector comprises: an exciting hammer used for exciting a coal roadway stratified roof anchorage body to generate excitation waves; an accelerometer used for acquiring a reflection wave signal of the excitation waves propagated in the coal roadway stratified roof anchorage body and sending the reflection wave signal to an ARM processor; a timer used for acquiring the reflection wave propagation time of the excitation waves propagated in the coal roadway stratified roof anchorage body and sending the reflection wave propagation time to the ARM processor; and the ARM processor used for determining the instability mode of the coal roadway stratified roof anchorage body according to the reflection wave signal, the reflection wave propagation time and the onsite geologic mechanical parameters of coal roadway. The invention also discloses a control method of the coal roadway stratified roof anchorage body instability mode detector.

Description

technical field [0001] The invention relates to the technical field of coal mine safety, and more specifically relates to a detection instrument and a control method for an unstable mode detector of a layered roof anchorage body in a coal roadway. Background technique [0002] Since the 1990s, bolt support has become one of the important forms of coal mine roadway support in my country due to its remarkable technical and economic advantages. In modern mines, roadway bolt support accounts for more than 90%. Layered structure is one of the main structural types of coal roadway roof, and layered roof is also the most suitable roof type for bolt support. In recent years, many large coal mining groups in my country have experienced roadway roof fall accidents on average 3 to 8 times a year, and casualty accidents have also occurred frequently. Roof fall accidents in local areas also often occur in bolt-supported roadways with a length of several hundred meters or even thousands o...

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): G01N29/04G01N29/07
CPCG01N29/045G01N29/07G01N2291/011G01N2291/023
Inventor 张楠
Owner SHANXI DATONG UNIV
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