Detection of Local Wall Stiffness Drop in Steel-Lined Pressure Tunnels and Shafts of Hydroelectric Power Plants Using Steep Pressure Wave Excitation and Wavelet Decomposition

Journal of Hydraulic Engineering

Volumn 138, Issue 1, 2012, Pages 35-45

  Hachem, F E ^a   Schleiss, A J ^a  

^a EPFL   (Switzerland)

Author keywords

Front wave speed; Monitoring; Pipes; Steel lined pressure tunnels; Transient pressure signals; Wave reflections; Wavelet decomposition

Indexed keywords

FAST FOURIER TRANSFORMS; HYDROELECTRIC POWER PLANTS; MONITORING; PIPE; POLYVINYL CHLORIDES; SIGNAL DETECTION; STIFFNESS;

IDENTIFICATION METHOD; LABORATORY EXPERIMENTS; MONITORING APPROACH; MONITORING TECHNIQUES; MULTI-LAYER SYSTEM; PRESSURE TUNNEL; PRESSURE WAVES; PVC PIPES; REFLECTED PRESSURE; REFLECTION BOUNDARIES; ROCK MASS; STEEL-LINED PRESSURE TUNNELS; STEEP WAVES; TRANSIENT PRESSURE SIGNALS; TRANSIENT PRESSURES; WALL STIFFNESS; WAVE REFLECTIONS; WAVE SPEED;

WAVELET DECOMPOSITION;

ALUMINUM; BACKFILL; FOURIER TRANSFORM; HYDROELECTRIC POWER PLANT; LINER; SHAFT; STEEL; STIFFNESS; TUNNEL; WALL; WAVE REFLECTION; WAVELET ANALYSIS;

EID: 84878490047     PISSN: 07339429     EISSN: None     Source Type: Journal    
DOI: 10.1061/(ASCE)HY.1943-7900.0000478     Document Type: Article

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