지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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One of the main problems concerning the shallow seismic survey is how to generate high frequency signals with large amplitudes using small seismic sources. If one could focus the seismic energy in the direction of the survey line, it will be much helpful in identifying the first break. In this research, we have used hammer as an impulsive source and compared the signal powers generated by different shapes of the hammer plates: circular, square, and rectangular. The experiment was conducted by calculating the power spectral density function to compare the frequency spectrum and signal power. In the direction perpendicular to the long side of the rectangular plate, the largest seismic energy with the highest frequency was achieved even with the same weights of hammer plates. Our conclusion is that it is more efficient to use a rectangular plate than a circular (or square) one when conducting a 2-D shallow seismic survey.
목차
등록된 정보가 없습니다.
참고문헌 (13)
참고문헌 신청
Buhnemann, J. / 1998 / Comparison of high-frequency seismic sources at the Grimsel test site, central Alps, Switzerland / Geophysics 63:1363~1370
Doll, W. E. / 1998 / A noninvasive shallow seismic source comparison on the Oak Ridge Reservation, Tennessee / Geophysics 63:1318~1331
Hearn, S.J. / 1991 / Evaluation of P- and Swave sources for shallow seismic reflection / Exploration Geophysics 22:169~174
Kay, S.M. / 1981 / Spectrum analysis-A modern perspective / Proceedings of the IEEE 69:1380~1419
Kim, J.H. / 2011 / Comparison of Signal Powers Generated with Metal Hammer Plate and Plastic Hammer Plate / Jigu-Mulli-wa-Mulli-Tamsa 14:282~288
Doll, W. E. / 1998 / A noninvasive shallow seismic source comparison on the Oak Ridge Reservation, Tennessee / Geophysics 63:1318~1331
Hearn, S.J. / 1991 / Evaluation of P- and Swave sources for shallow seismic reflection / Exploration Geophysics 22:169~174
Kay, S.M. / 1981 / Spectrum analysis-A modern perspective / Proceedings of the IEEE 69:1380~1419
Kim, J.H. / 2011 / Comparison of Signal Powers Generated with Metal Hammer Plate and Plastic Hammer Plate / Jigu-Mulli-wa-Mulli-Tamsa 14:282~288
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