세월호 참사 현장에서의 수중 수색 및 구조 작업을 위한 표면 공급식 잠수(Part II):적용성 평가 및 운영·관리 방안

초록

This study (Part II) evaluates the applicability and operational efficiency of the surface-supplied diving system (SSDS) for safe underwater search and rescue activities in ocean environments characterized by strong tidal currents and deep waters, exemplified by the 2014 Sewol ferry disaster. Based on the SSDS dive plan developed in Part I, quantitative comparisons were conducted between SSDS and self-contained underwater breathing apparatus (SCUBA) diving, considering actual tidal conditions at the accident site. Dive duration, dive frequency, and personnel requirements were analyzed. Results indicate that SSDS ensures diver safety through systematic decompression procedures at greater depths and facilitates extended underwater operations, significantly improving operational effectiveness compared to SCUBA diving. However, due to extensive equipment setup and higher personnel demands, SSDS presents limitations regarding rapid emergency response and maneuverability. Therefore, a hybrid diving strategy combining both SSDS and SCUBA diving methods is recommended for confined or difficultto- access spaces. Additionally, detailed operation and management guidelines for night diving, gas supply, communication systems, and lifeline handling were reviewed. This study establishes practical foundations for future underwater search and rescue operations in similar maritime disasters through professional diver-team configurations and daily dive schedules reflecting ocean environmental conditions.

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