›› 2008, Vol. 29 ›› Issue (11): 3082-3088.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on energy distributions and fractal characteristics of Kaiser signal of acoustic emission in rock

ZHAO Kui1, WAHG Geng-feng1, WANG Xiao-jun1, JIN Jie-fang1, DENG Fei1, 2   

  1. 1. Faculty of Environment and Architectural Engineering, Jiangxi Univesity of Science and Technology, Ganzhou 341000, China; 2. School of Civil and Environmental Engineering, University of Science and technology Beijing, Beijing 100083, China
  • Received:2007-06-18 Online:2008-11-10 Published:2013-08-07

PDF (PC)

1461

Abstract: Acoustic emission tests of sandstone specimens under uniaxial compression are carried out; and Kaiser point is determined by parameter method according to the principle of Kaiser effect. First, based on the above testing results, the energy distribution of acoustic emission signals is studied by means of the wavelet packet analysis technique; and regularity of energy distributions for different frequency bands is analyzed. The results show that the energy percentage of dominant frequency band at Kaiser point is significantly higher than other points. Then, relevant fractal dimensions of acoustic emission process are obtained by using G-P algorithm. Results show that the acoustic emission process is of obvious fractal characteristics. And the minimum value of relevant fractal dimension is at Kaiser point. The conclusion can be used to identify the characteristics at Kaiser point by waveform analysis.

Key words: acoustic emission in rock, Kaiser effect, energy distribution, wavelet packet analysis, relevant fractal dimension

CLC Number: 

  • TU 454
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] LIANG Tian-cheng, LIU Yun-zhi, FU Hai-feng, YAN Yu-zhong, XIU Nai-ling, WANG Zhen. Experimental study of hydraulic fracturing simulation for multistage circulating pump injection [J]. , 2018, 39(S1): 355-361.
[2] LI Jie , WANG Ming-yang , FAN Peng-xian , SHI Cun-cheng . Study of loading-unloading states and energy distribution relationship for rock mass [J]. , 2012, 33(S2): 125-132.
[3] XIE Qiang，YU Xian-bin，Carlos Dinis da Gama. Influence of time-delay on Kaiser effect of rock under Brazilian tests [J]. , 2010, 31(1): 46-50.
[4] JIANG Yong-dong, XIAN Xue-fu, XU Jiang. Research on application of Kaiser effect of acoustic emission to measuring initial stress in rock mass [J]. , 2005, 26(6): 946-950.
[5] KANG Yong, LI Xiao-hong, WANG Qing-hai, JIANG Yong-dong. Research on in-situ stress measurement and rockburst forecast in tunnels [J]. , 2005, 26(6): 959-963.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] CUI Kai, CHEN Wen-wu, ZHANG Jing-ke, HAN Wen-feng, LIANG Shou-yun. Relationships between microstructure parameters and wind erosion rate of multivariate layered soil in slope[J]. , 2009, 30(9): 2741 -2746 .
[2] JIE Ying, TANG Xiao-wei , LUAN Mao-tian. Finite-element free Galerkin coupling method for sand liquefaction-induced deformation[J]. , 2010, 31(8): 2643 -2647 .
[3] HU Ming-jian, WANG Ren, CHEN Zhong-xue, WANG Zhi-bing. Initiation process simulation of debris deposit based on particle flow code[J]. , 2010, 31(S1): 394 -397 .
[4] ZHANG Jian-xin, LIU Shuang-ju, ZHOU Jia-bin. Analysis of influence of foundation pits excavation unloading by top-down method on engineering structures[J]. , 2010, 31(S2): 218 -223 .
[5] BAI Bing, LI Chun-feng. Elastoplastic dynamic responses of close parallel metro tunnels to vibration loading[J]. , 2009, 30(1): 123 -128 .
[6] LI Shu-cai，XU Bang-shu，DING Wan-tao，ZHANG Qing-song. Weighted function method for minimum rock cover thickness of subsea tunnel[J]. , 2009, 30(4): 989 -996 .
[7] XUE Yun-liang, LI Shu-lin, LIN Feng, XU Hong-bin. Study of damage constitutive model of SFRC considering effect of damage threshold[J]. , 2009, 30(7): 1987 -1992 .
[8] LI Guo-yu，YU Wen-bing，MA Wei，QI Ji-lin，JIN Hui-jun，SHENG Yu. Experimental study of characteristics of frost and salt heaves of saline highway foundation soils in seasonally frozen regions in Gansu Province[J]. , 2009, 30(8): 2276 -2280 .
[9] REN Zhong, Sheng Qian. Study on the disciplinary structure and its evolution of rock mechanics in China[J]. , 2009, 30(S1): 293 -298 .
[10] ZHANG Jun-hui. Analysis of deformation behavior of expressway widening engineering under different foundation treatments[J]. , 2011, 32(4): 1216 -1222 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd