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

Active or passive combined acoustic testing and seepage testing combined system for rock triaxial test

A technology of triaxial test and acoustic test, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, scientific instruments, etc., can solve the problems of high cost and accuracy, and achieve guaranteed accuracy, low cost, Ease of use

Inactive Publication Date: 2013-09-18
HUAQIAO UNIVERSITY
View PDF5 Cites 34 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide an active and passive combined acoustic test and seepage test joint system for rock triaxial testing, which can not only complete the traditional triaxial testing system. rock mechanics test and penetration test, etc., and realizes multiple functions of mechanical triaxial test, active and passive acoustic test and penetration test integration at the same time, and solves the problem of high acoustic emission signal monitoring of traditional rock test system alone Technical issues of cost and poor accuracy

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
  • Active or passive combined acoustic testing and seepage testing combined system for rock triaxial test
  • Active or passive combined acoustic testing and seepage testing combined system for rock triaxial test
  • Active or passive combined acoustic testing and seepage testing combined system for rock triaxial test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] Please refer to Figure 1 to Figure 5 As shown, it shows the specific structure of the preferred embodiment of the present invention, including a rock triaxial testing machine 10 , a multiwave analyzer 20 , an acoustic emission signal acquisition instrument 30 and an electronic computer 40 .

[0049] Wherein, the rock triaxial testing machine 10 includes a sealed pressure chamber 11, an axial pressure guide rod 12, and an upper pressure-bearing probe 13 and a lower pressure-bearing probe 14 arranged in the sealed pressure chamber 11 for clamping the rock sample 50; The multiwave analyzer 20 , the acoustic emission signal acquisition instrument 30 and the electronic computer 40 are located outside the sealed pressure chamber 11 .

[0050]Specifically, in this embodiment, the sealed pressure chamber 11 includes a base 111 and a main body cover 112, the main body cover 112 is fixed on the base 111, and the outside of the joint between the main body cover 112 and the base 1...

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 active or passive combined acoustic testing and seepage testing combined system for a rock triaxial test. The system comprises a rock triaxial testing machine, a multi-wave analyzer, an acoustic emission signal acquisition instrument and an electronic computer, wherein the rock triaxial testing machine comprises a sealing pressure chamber, an axial pressure guide rod, and an upper pressure-bearing probe and a lower pressure-bearing probe which are arranged in the sealing pressure chamber and are used for clamping rock samples. Therefore, the upper pressure-bearing probe and the lower pressure-bearing probe are arranged in the sealing pressure chamber, and an acoustic emission sensor, the acoustic emission signal acquisition instrument and the electronic computer are connected to form a passive acoustic testing system, and both a second acoustic wave transducer and a first acoustic wave transducer are connected with the multi-wave analyzer and the electronic computer so as to form an active acoustic testing system, so that acoustic wave data and acoustic emission signal data can be output through the electronic computer. The system is simple in structure, convenient to use and low in cost and is conveniently popularized to the field of the indoor rock triaxial test, and the accuracy of a testing result is guaranteed.

Description

technical field [0001] The invention relates to the technical field of rock mechanics testing, in particular to a combined acoustic testing and seepage testing joint system suitable for rock triaxial testing in the engineering testing technical fields of rock, geology, and geophysical prospecting. Background technique [0002] Under loading or unloading, during the process of local plastic deformation or the initiation of new cracks and the expansion of old and new cracks inside the rock, the strain energy is released instantaneously to generate elastic waves, and these elastic waves carry the micro-fractures in the process of damage evolution inside the rock. Scholars call it the acoustic emission signal. Acoustic emission test is a passive acoustic test method in which the source signal is uncontrollable and the test system does not send acoustic signals but only receives acoustic signals. [0003] Acoustic testing of rocks is an important means to study the dynamic prope...

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): G01N3/10G01N15/08G01N29/14
Inventor 俞缙蔡燕燕陈旭刘士雨涂兵雄
Owner HUAQIAO UNIVERSITY
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