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| | Abstract | | S-wave velocity structure is very important in civil and earthquake engineering problems. For estimation of S-wave velocity structure, S-wave reflection survey has been conducted frequently. However, in urban areas, S-wave reflection survey is difficult to be conducted because of ambient traffic noise. We applied seismic interferometry using background-noise records to S-wave reflection survey. Continuous recording using horizontal geophones was carried out in the survey line spread along the bank of the Arakawa River. This survey line is surrounded by railway lines and roads. Thus, the recorded data included ambient traffic noise, such as trains and automobiles. Pseudo-shot records were generated by cross-correlating continuous recorded data. Finally, the S-wave stacked section was obtained. Strong reflectors on the obtained section may provide evidence that seismic interferometry is effective to S-wave reflection survey in noisy urban areas. |
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