환경과 공학목적의 해저면 탄성파 굴절법 조사

Title
환경과 공학목적의 해저면 탄성파 굴절법 조사
Alternative Title
Water bottom seismic refraction survey for engineering applications
Author(s)
차영호; 조철현; 김한준; 조석민; 박건태
KIOST Author(s)
Kim, Han Joon(김한준)
Publication Year
2004-06-08
Abstract
Accurate mapping of the basement is one of the most crucial factors to the construction of harbour facilities and bridges in the coastal areas. In shallow waters, the seismic reflection method employing acoustic profiling technology often fails to image the basement geometry beneath the sediment cover in many cases. We present the result of a shallow marine seismic refraction survey using two ships, 12-channel hydrophone arrays deployed on the bottom and a borehole sparker or percussion powder as sources. Velocity structure was computed by tomography since data from more than 6 different source points had been collected for one spread. A comparison of the results of the refraction survey with drilling logs demonstrates remarkable consistency in basement ge-ometry. It thus appears that the refraction method in this study is an efficient and cost-effective way to investigate the basement structure in coastal area, river, and lake.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31827
Bibliographic Citation
INTERNATIONAL CONFERENCE ON ENVIRONMENTAL AND ENGINEERING GEOPHYSICS, pp.172 - 177, 2004
Publisher
China Univ. Geosciences
Type
Conference
Language
English
Publisher
China Univ. Geosciences
Related Researcher
Research Interests

Marine Geophysics,Marine Active Fault Study,Exploration Seismology,해양지구물리,해저단층연구,탄성파탐사

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