이동식 크레인 사고사망재해 심층분석 연구

Abstract

Abstract In this study, the current regulations to be adequate in indu strial site have to be renew in order to prevent the fatal injuries by mobile cranes. Fatal injury analy ses were conducted with several accident cases by the mobile cranes. For each accident, the causes of th e injuries were examined and proper safety measures were proposed. This study proposed a revision o f the standard guideline as an accident prevention measures through in-depth analysis of fatal accidents. First, fatality rate per 10,000 persons by the mobiles cranes was 0.57 in 2011. Second, the in-depth analysis of the mobile crane accidents showed that the main factors of the accidents w ere the overturn of mobile crane, the fracture of connection part between mobile crane boom and rope, the breaking of rope and the misunderstanding over the signal between a mobile crane driver and workers around a mobile crane. Third, the order of high defection of connecting parts was buck et bolt, bracket and extension parts. Fourth, since there were several cases of overturn of mobile cr ane by itself in the in-depth analysis of the mobile crane, the over slop-proof device was proposed as th e main alternative in this study. Fifth, the revision of standards of safety factor that shall be more t han 10, of connecting parts of mobile crane was proposed. Keywords : Mobile Crane, Slope Protector, Fatality, Accident, M oment Proof Device