EFFECTS OF SOUNDWAVES DISSIPATION ON SPECTRAL ANALYSIS OF SURFACE WAVES (SASW) MEASUREMENTS IN MARINE GEO-TECHNICAL INVESTIGATIONS

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AKHLAGHI TOHID

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Seminar Paper

Paper Information

Seminar: INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS) PORTS & MARITIME ORGANIZATION
Year:2006 | Issue:7

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Title

EFFECTS OF SOUNDWAVES DISSIPATION ON SPECTRAL ANALYSIS OF SURFACE WAVES (SASW) MEASUREMENTS IN MARINE GEO-TECHNICAL INVESTIGATIONS

Author(s)

AKHLAGHI TOHID

Keywords

SPECTRAL ANALYSIS

SURFACE WAVES

NON-DESTRUCTIVE

TECHNIQUE

RECEIVER

SASW

Abstract

SPECTRAL ANALYSIS OF SURFACE WAVES (SASW) IS A NON-DESTRUCTIVE, ON-THE-SPOT TECHNIQUE WHICH IS USED IN GEO-TECHNICAL INVESTIGATIONS AND OPERATIONS THAT ARE DESIGNED TO DETERMINE INFLEXIBILITY PROFILE OF LAND LAYERS BOTH IN LAND AND SEA. DUE TO BEING QUICK AND ACCURATE, THIS TECHNIQUE IS OFTEN PREFERRED TO OTHER SEISMIC METHODS. SASW IS BASED ON GENERATION AND RECORD OF SEISMIC WAVES ON THE SURFACE OF LAND OR AT SEABED AND THEN PHASE DIFFERENCE OF RESULTING SIGNALS ARE ANALYZED IN FREQUENCY SCOPE. THE OUTCOME IS THEN REVERSED USING AN ELASTIC MODEL. WHEN EXPLOSIVE MATERIALS ARE USED TO GENERATE SEISMIC WAVES DURING SASW EXPERIMENT INSIDE THE SEA, SOUND WAVES ARE PRODUCED AS A RESULT OF EXPLOSION. IT AFFECTS RECORDS OF THE RECEIVERS AND CAUSES IN THE INACCURACY OF RESULTS WHICH SOMETIMES MAY BE CONFUSING AS WELL. IT IS, THEREFORE, NECESSARY TO FOCUS ON PROPERTIES OF SOUND WAVES THAT ARE GENERATED IN THIS WAY. THE THEORETICAL MODEL THAT HAS BEEN APPLIED FOR SASW EPERIMENT TAKES SURFACE AND SOUND WAVES INTO ACCOUNT.

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APA: Copy

AKHLAGHI, TOHID. (2006). EFFECTS OF SOUNDWAVES DISSIPATION ON SPECTRAL ANALYSIS OF SURFACE WAVES (SASW) MEASUREMENTS IN MARINE GEO-TECHNICAL INVESTIGATIONS. INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS). SID. https://sid.ir/paper/908305/en

Vancouver: Copy

AKHLAGHI TOHID. EFFECTS OF SOUNDWAVES DISSIPATION ON SPECTRAL ANALYSIS OF SURFACE WAVES (SASW) MEASUREMENTS IN MARINE GEO-TECHNICAL INVESTIGATIONS. 2006. Available from: https://sid.ir/paper/908305/en

IEEE: Copy

TOHID AKHLAGHI, “EFFECTS OF SOUNDWAVES DISSIPATION ON SPECTRAL ANALYSIS OF SURFACE WAVES (SASW) MEASUREMENTS IN MARINE GEO-TECHNICAL INVESTIGATIONS,” presented at the INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS). 2006, [Online]. Available: https://sid.ir/paper/908305/en

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