In-situ stress measurements using oriented core - A comparison of uniaxial vs triaxial Acoustic Emission results

E. Villaescusa, L. MacHuca, X. Lei, Takahiro Funatsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper describes the results from a number of laboratory testing experiments conducted under uniaxial and triaxial conditions. A high speed AE monitoring system was used to record the maximum amplitude and waveform for the AE signals with no major loss of events, even for AE event rates of the order of several thousands of events per second, such as they are normally observed before a catastrophic full scale rock mass failure event. The detailed damaging process as stress was increased was determined by monitoring the complete spacio-temporal distribution of microcracking events. The results showed that for samples of similar orientation and collected immediately adjacent to each other, the magnitude of the stress field determined using a triaxial testing set-up is similar to the stress level determined using uniaxial samples.

Original languageEnglish
Title of host publicationRock Stress and Earthquakes - Proceedings of the 5th International Symposium on In-Situ Rock Stress
Pages217-221
Number of pages5
Publication statusPublished - Dec 1 2010
Externally publishedYes
Event5th International Symposium on In-Situ Rock Stress, ISRSV 2010 - Beijing, China
Duration: Aug 25 2010Aug 27 2010

Other

Other5th International Symposium on In-Situ Rock Stress, ISRSV 2010
CountryChina
CityBeijing
Period8/25/108/27/10

Fingerprint

stress measurement
acoustic emission
Stress measurement
in situ stress
Acoustic emissions
temporal distribution
monitoring system
stress field
Microcracking
Monitoring
Testing
monitoring
Rocks
rock
experiment
comparison
Experiments
speed
loss
rate

All Science Journal Classification (ASJC) codes

  • Geology
  • Geotechnical Engineering and Engineering Geology

Cite this

Villaescusa, E., MacHuca, L., Lei, X., & Funatsu, T. (2010). In-situ stress measurements using oriented core - A comparison of uniaxial vs triaxial Acoustic Emission results. In Rock Stress and Earthquakes - Proceedings of the 5th International Symposium on In-Situ Rock Stress (pp. 217-221)

In-situ stress measurements using oriented core - A comparison of uniaxial vs triaxial Acoustic Emission results. / Villaescusa, E.; MacHuca, L.; Lei, X.; Funatsu, Takahiro.

Rock Stress and Earthquakes - Proceedings of the 5th International Symposium on In-Situ Rock Stress. 2010. p. 217-221.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Villaescusa, E, MacHuca, L, Lei, X & Funatsu, T 2010, In-situ stress measurements using oriented core - A comparison of uniaxial vs triaxial Acoustic Emission results. in Rock Stress and Earthquakes - Proceedings of the 5th International Symposium on In-Situ Rock Stress. pp. 217-221, 5th International Symposium on In-Situ Rock Stress, ISRSV 2010, Beijing, China, 8/25/10.
Villaescusa E, MacHuca L, Lei X, Funatsu T. In-situ stress measurements using oriented core - A comparison of uniaxial vs triaxial Acoustic Emission results. In Rock Stress and Earthquakes - Proceedings of the 5th International Symposium on In-Situ Rock Stress. 2010. p. 217-221
Villaescusa, E. ; MacHuca, L. ; Lei, X. ; Funatsu, Takahiro. / In-situ stress measurements using oriented core - A comparison of uniaxial vs triaxial Acoustic Emission results. Rock Stress and Earthquakes - Proceedings of the 5th International Symposium on In-Situ Rock Stress. 2010. pp. 217-221
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