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复杂桥梁施工过程中结构体系、施工条件等多变,不确定因素众多,施工过程的风险评估和管理困难。在工程风险评估一般过程的基础上,以在钱塘江强涌潮河段顶推施工的九堡大桥主桥为例,提出基于施工场景的施工过程动态风险评估和管理方法体系。并介绍了该主桥施工过程风险评估的方法、评价准则确定、风险事态识别和分析方法、风险管理手册编制和使用等,系统说明了复杂桥梁施工过程风险评估的一般过程,可供类似桥梁施工过程借鉴。
Complex bridge construction process of the structural system, construction conditions and other variables, many uncertainties, the construction process of risk assessment and management difficulties. Based on the general process of project risk assessment, taking the main bridge of Jiubao Bridge under construction in Qiangtangjiang strong tidal reach as an example, the construction risk assessment and management method of construction process based on construction scene is proposed. The method of risk assessment of the main bridge construction process, the determination of evaluation criteria, the identification and analysis of risk events, the compilation and use of risk management manuals, etc. are introduced. The system generally describes the general process of risk assessment of complex bridge construction process and can be used for similar bridge construction The process of reference.