한국지구물리탐사학회:학술대회논문집
- 2006.06a
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- Pages.125-130
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- 2006
Simultaneous tomographic inversion of surface and borehole seismic traveltime data in the Pungam basin
풍암분지 시험시추공 주변에서의 지표 및 시추공 초동주시 토모그래피 동시역산
- Hong, Myung-Ho (Department of Geophysics, Kangwon National University) ;
- Kim, Ki-Young (Department of Geophysics, Kangwon National University)
- Published : 2006.06.08
Abstract
Both surface seismic and far-offset VSP data were recorded alongtwo mutually perpendicular profiles in the Pungam basin. The first-arrival times were simultaneously inverted using the tomography method. For the surface data, seismic energy was generated by a 5-kg sledgehammer at 48 stations and detected by 21 surface geophones at 3 m intervals and one 3-component geophone in test borehole for the purpose of static corrections. For the VSP data, seismic waves generated by the sledgehammer on the ground were detected by a 3-component borehole geophone in a depth range of
풍암분지 내에 위치한 시험시추공을 중심으로 서로 직각인 2개 측선을 따라 획득한 지표 굴절법 및 원거리 수직탄성파 자료의 초동을 토모그래피 방식으로 동시에 역산하였다. 지표 탄성파자료는 48개 타격점에서 5kg 해머로 발생시킨 지진파를 3 m 간격 21개 지표지오폰과 1개 3성분 공내지오폰으로, 수직탄성파 자료는 수평거리
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