MULTI_SCALE ANALYSIS OF GEOTECHNICAL DEFORMATION MONITORING SIGNALS BY TIME DOMAIN REFLECTOMETRY BASED ON WAVELET TRANSFORM

Hu Jing; Li Xinping; Qu Weilian

doi:10.13204/j.gyjz200702013

Volume 37 Issue 2

Dec. 2014

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Zhu Wenzheng, Zhang Jichao. SIMULATION ANALYSIS AND SHAKING TABLE TEST OF ISOLATION SYSTEM FOR GIANT STEEL STRUCTURE[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(2): 114-117. doi: 10.13204/j.gyjz201502024

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Hu Jing, Li Xinping, Qu Weilian. MULTI_SCALE ANALYSIS OF GEOTECHNICAL DEFORMATION MONITORING SIGNALS BY TIME DOMAIN REFLECTOMETRY BASED ON WAVELET TRANSFORM[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(2): 50-54. doi: 10.13204/j.gyjz200702013

Zhu Wenzheng, Zhang Jichao. SIMULATION ANALYSIS AND SHAKING TABLE TEST OF ISOLATION SYSTEM FOR GIANT STEEL STRUCTURE[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(2): 114-117. doi: 10.13204/j.gyjz201502024

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MULTI_SCALE ANALYSIS OF GEOTECHNICAL DEFORMATION MONITORING SIGNALS BY TIME DOMAIN REFLECTOMETRY BASED ON WAVELET TRANSFORM

doi: 10.13204/j.gyjz200702013

1.
School of Civil Engineering and Architecture,Wuhan University of Technology Wuhan 430070

Received Date: 2006-06-18
Publish Date: 2007-02-20

Abstract

Abstract

In order to study the reflected signal in coaxial cable of time domain reflectometry deformation monitoring fully,accurately and efficiently,it is proposed to use Haar wavelet transform for analyzing these reflected signals and to distinguish instability region in soil and rock according to detail signal of large scale.Two engineering cases show that the shear deformation region giving rise to instability of soil and rock can be visualized highlightly by this method and the area deforming in certain time interval can be observed directly through contrasting the results of wavelet analysis received in correspondence time interval.So,this method has positive significance to realize early warning of excessive deformation of soil and rock effectively.
- deformation monitoring,
- time domain reflectometry,
- multi_scale analysis,
- wavelet transform

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References(11)

References

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Dowding C H,Su M B,O' Connor K. Measurement of Rock Mass Deformation with Grouted Coaxial Antenna Cables[J].Rock Mechanics and Rock Engineering,1989,(01):1-23.

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