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하희상 ( Hee Sang Ha ),박형근 ( Hyeong Keun Park ),김연준 ( Yeon Jun Kim ),양인태 ( In Tae Yang ) 한국지리정보학회 2007 한국지리정보학회지 Vol.10 No.4
In general bathymetric surveying is the method which gets depth. The water depth on chart is generally measured by a 200Khz frequency echo-sounder. In this study the thickness of the floating silt-clay was measured by a duel frequency sounder using 33Khz and 200Khz. This study shows the method of measuring the volume of the floating silt-clay in dredged basins dredged basin. After this surveying RI test was performed for verifying the existence of the silt-clay.