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VibroCorer System을 이용한 해저 퇴적물 조사
김현도(Hyundo Kim),김진후(Jinhoo Kim),류춘길(Choonkil Ryu) 한국마린엔지니어링학회 2007 한국마린엔지니어링학회 학술대회 논문집 Vol.2007 No.-
In order to grasp the vertical distribution of bottom sediments characteristics, vertical sediments samples are collected by using core samplers. Among the core samplers, a gravity corer and a piston corer have been widely used. Recently, a deeper sample can be obtained from hard sediments by using a miniaturized VibroCorer. In this study, a sample of bottom sediments was collected using a VibroCorer system which has not been widely used untill recently, and sediment characteristics including grain size distribution, sediment type, water content, organic content, and shear strength, etc., have been analyzed. Sediment characteristics profiles along the depth ascertained that the mini-VibroCorer system can be used successfully for studies on the nature of sediments in a coastal area.
김현도(Hyundo Kim),김진후(Jinhoo Kim) 한국마린엔지니어링학회 2006 한국마린엔지니어링학회 학술대회 논문집 Vol.2006 No.-
Digital technology has been applied to marine seismic survey to develop data processing technology and multi-channel marine seismic survey. In result, high-resolution marine seismic survey ended in a success. Surveys are conducted for various purposes using various frequencies of acoustic sources. A low frequency source is used for deeper penetration and a high frequency source is used for higher resolution survey. In this study, a multi-source system was used for multi-channel marine seismic survey to acquire seismic sections of both low and high frequencies. Variations of depth of penetration and resolution would be used to achieve more accurate analysis of formations. In this study, the multi-source system consists of Bubble Pulser (400 ㎐) for low frequency source and Sparker (1.5 ㎑) for high frequency source.