In order to improve the proactiveness,a new early intervention model of unsafe behaviors for construction workers, this study starts from vulnerability and comes up with the key strategies,methods and approaches by using behaviors survey,evolution reasoning and case study,based on vulnerability and technologies of behaviors intervention. The results show that there are positive correlations between vulnerability and susceptibility of workers,and between vulnerability and fragility of workers. There are negative correlations between vulnerability and reliability of workers' behaviors,and between vulnerability and safety of workers' behaviors. The key strategy of the early intervention of unsafe behaviors for construction workers focused on vulnerability is controlling and adjusting proactively,based on early recognition and prediction of unsafe behaviors. It includes several related methods and has an integrated approach with multi-processes,multi-levels and multi-factors. This model pays a lot attentions to the effects of the interaction between environmental and individual factors to safe behavior modeling and unsafe behavior intervention. So it has significant advantages in integration,dynamics and proactiveness.%为了提高建筑工人不安全行为干预的前摄性,以脆弱性为切入点,通过行为调查、演化推理和案例分析等途径,结合行为改变技术,提出了建筑工人不安全行为早期干预的核心策略、关键方法和实施路径.结果表明:脆弱性与建筑工人的易感性和易损性正相关,与行为的可靠性和安全性负相关;建筑工人不安全行为早期干预的核心策略是主动识别不安全行为特征并预测发展趋势,进而实施前摄控制和矫正,包含不安全行为的早期识别、前摄控制、趋势预测和前摄矫正等过程和方法,拥有一个多过程、多层次、多因素并举的综合型实施模式;建筑工人不安全行为早期干预重视各种环境和个体因素间的相互动态作用对安全行为塑造与不安全行为干预的影响,故在整合性、动态性和主动性方面具有优势.
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