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AE TEST OF CALCAREOUS SANDS WITH PARTICLE RUSHING

Abstract

The particle of calcareous sands was forced to crush, then the energy from the crushing was released by the form of sound waves. Therefore the AE technique was used to detect the calcareous sands AE signal when it crushed by to study the AE characteristics, the mechanics of calcareous sands was studied. Study showed that: (1) there was the AE activities on the low confining pressure condition at the beginnig of test, (2) there was more and more AE activities with the continuing of test until to the end, (3) the calcareous sands’ AE activities was on the whole testing, (4) the calcareous sands’ particle crushing and mutual friction played different roles for its AE activities. Then the AE model based on the calcarous sands’ particle crushing was discussed.

Keywords:

Calcareous sands, Accoustic emission, Conventional triaxial, Consolidated undrained, AE signal, Particle crushing

Details

Issue
Vol. 24 No. S2(94) (2017)
Section
Latest Articles
Published
13-09-2017
DOI:
https://doi.org/10.1515/pomr-2017-0073
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Open Access License

This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.

 

Authors

  • Fengyi TAN

    Yangtze River scientific Research Institute; Wuhan Changke Engineering Construction Supervision Co;  State Key Laboratory of Geomechanics and Geotechnical Engineering, Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
  • Xinzhi WANG

    State Key Laboratory of Geomechanics and Geotechnical Engineering, Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences; Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
  • Mingjian HU

    State Key Laboratory of Geomechanics and Geotechnical Engineering, Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences; Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
  • Ren WANG

    State Key Laboratory of Geomechanics and Geotechnical Engineering, Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences; Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
  • Changqi ZHU

    State Key Laboratory of Geomechanics and Geotechnical Engineering, Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences; Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

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