超大面积软基处理工程安全风险分析及防控

Safety risk analysis and control measures of large-area soft foundation treatment project

安全风险防控是项目安全管理的核心内容。根据超大面积真空预压围海造陆软基处理工程特点、施工工艺,辨识施工过程中存在的危险源,采用作业条件危险性评价法对各危险源进行分析评价,并确定每个危险源的危险等级,从而确定承载力较差区域作业人员行走、电源线接头处或破损处浸泡在水中、吹砂船遭遇季节大风袭击、插板机轨道基础不稳等4项重大安全风险,并制定了相应的安全专项控制措施,进行重点防控,有效防范事故的发生。

Safety risk control is the core content of project safety management. According to the characteristics and construction technology of large-area vacuum preloading engineering for soft foundation treatment of reclamation engineering, we identify the dangerous source existed in the construction process, analyze and evaluate the risk source with the LEC method, and determine the risk level of each risk source, so as to further determine the 4 major security risks： walking capacity of workers in poor areas, power line connection or breakage immersion in water, blowing sand ship encountering seasonal winds, insertion machine track foundation instability, etc. Developing special safety related control measures, and focusing on preventibn and control, we prevent effectively the occurrence of the accident.