【摘要】 为全面保障地铁施工安全有序进行，构建了地铁施工安全事故风险评价体系。采用主成分分析法构建数理模型，以全国230起地铁施工安全事故为例，对地铁施工安全事故风险进行定量排序。结果显示：坍塌事故和物体打击存在较高风险，应着力采取措施避免；车辆伤害的风险性不高虽然但因其后果严重，应给予该类型事故关注。研究结果表明主成分分析能够客观地对地铁施工安全事故风险进行评价。相关结论对地铁施工管理人员防控安全事故发生具有指导意义。更多还原

【Abstract】 To fully guarantee the safety and order of subway construction as well as understand the status of safety accidents during subway construction, a subway construction safety accident risk evaluation system was constructed in the paper.230 nationwide safety accidents of subway construction were evaluated by the principal component analysis.The results indicate that there is a high risk in collapse accidents and object strikes that should be avoided by many measures.Even though there is not high risk in vehicle injury, its consequences is serious, which shall be paid more attention.The conclusion demonstrate that the risk of subway construction safety accidents can be objectively evaluated by the principal component analysis, which could provide a guidance for subway construction managers to prevent and control the occurrence of safety accidents.更多还原