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

Non destructive detection mothod used for anchor rod anchored system

An anchoring system and detection method technology, which can be used in the analysis of solids using sonic/ultrasonic/infrasonic waves, complex mathematical operations, instruments, etc., and can solve problems such as high price, difficult signal reception, and limited detection depth.

Inactive Publication Date: 2006-06-28
CHONGQING UNIV
View PDF0 Cites 29 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The detection range of the electromagnetic wave method is limited and the price is expensive; the propagation distance of the ultrasonic detection method is short, the signal attenuation speed is fast, the signal is difficult to receive, and the detection depth is limited

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
  • Non destructive detection mothod used for anchor rod anchored system
  • Non destructive detection mothod used for anchor rod anchored system
  • Non destructive detection mothod used for anchor rod anchored system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] see figure 1 , a non-destructive testing method for bolt anchorage system, characterized in that: the method comprises the following steps:

[0034] (1) The stress wave generator acts on the top of the anchor rod with the excited acoustic wave signal;

[0035] (2) The stress wave sensor obtains the dynamic measurement signal reflected from the bolt anchorage system and transmits it to the signal receiving device;

[0036] (3), the signal receiving device transmits the signal to the microprocessor for wavelet packet analysis;

[0037] (4) Perform intelligent signal processing and analysis on the processed signal.

[0038] The above-mentioned intelligent signal processing analysis is the analysis of the defect position of the bolt or the quantitative analysis of the anchoring quality of the bolt anchorage system.

[0039] The defects of the bolt system usually lead to changes in the observed signals of the system. If certain measures can be taken to eliminate the noise...

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

A method for nondestructively detecting rock bolt ¿C anchoring system includes acting acoustic signal issued by stress wave generator on top portion of rock bolt, sending dynamic measuring signal reflected form rock bolt ¿C anchoring system to signal receiving unit being used to transmit said signal to microprocessor for carrying out wavelet packet analysis, carrying out intelligent processing and analyzing on signal being analyzed with wavelet packet.

Description

technical field [0001] The invention relates to a non-destructive testing method for a bolt anchorage system. Background technique [0002] The traditional detection method of the anchorage state of the bolt mainly relies on the pullout force test of the bolt. Although this method is suitable for some occasions, it has many shortcomings. This method is not only a destructive detection but also a The pullout force of the bolt cannot fully reflect the anchorage state of the bolt. The application of non-destructive testing technology in the safety evaluation of rock and soil anchorage has been developed with the great development of digital electronic technology and computer technology in recent years. After decades of research and application, a variety of methods have been developed, which can be mainly summarized as follows: Electromagnetic wave method and vibration (seismic wave) ~ ultrasonic detection method. The detection range of the electromagnetic wave method is limi...

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): G01N29/04G01N35/00G06F17/11
Inventor 张永兴陈建功许明王桂林
Owner CHONGQING UNIV
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