Causal analysis of strike accident of tower crane operating object based on D-I

doi:10.16265/j.cnki.issn 1003-3033.2021.06.011

Abstract

Abstract: To prevent SFO accident in tower crane operation, 19 high-frequency cause factors were extracted from investigation reports of tower crane accidents in the past five years.Decision-making trial and evaluation laboratory (DEMATEL) and interpretative structural modeling (ISM) were integrated to analyze mutual influence relationship between each cause, ladder level structure of causes were constructed, and key causes were found out. The results show that 19 high frequency causative factors are divided into 9 levels, among which improper use of safety protective equipment, illegal entry or in the danger zone and falling of hanging objects are apparent factors. Imperfection of safety management system is essential factor. Inadequate on-site supervision and management and missing or unqualified special construction scheme are deeper cause factors. And the key causing-factors of SFO accident are inadequate on-site supervision and management, inadequate safety technical disclosure, imperfect safety management system, insufficient safety awareness, skills or experience.

Key words: tower crane, D-I, falling object, struck-by-falling-object (SFO), accident causes, cause-effect relationship

CLC Number:

X952

ZHENG Xiazhong, ZHOU Jiali, SHAO Bo, YANG Ying, YANG Qiu, JIN Lianghai. Causal analysis of strike accident of tower crane operating object based on D-I[J]. China Safety Science Journal, 2021, 31(6): 83-89.

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