城市地下综合管廊的施工安全风险评价

Construction Safety Risk Assessment of Urban Underground Comprehensive Pipe

遵循安全风险识别和影响因素选取的原则,构建影响城市地下综合管廊施工安全的指标,建立了基于灰色关联度的综合管廊施工安全风险评价模型。结合国内外四条综合管廊项目和已建立的综合管廊施工项目安全风险所处的等级,依据灰色关联度分析综合管廊安全风险发展态势发现影响综合管廊施工安全的主要因素是施工管理而不是人们常以为的设计和技术因素,为施工企业的安全风险决策提供借鉴。

In view of the current situation that there is no more quantitative evaluation on the construction safety risk of the pipe gallery, the principle of safety risk identification and selection of influencing factors is followed to construct the index that affects the construction safety of the underground pipe gallery in urban areas and the construction safety of the integrated pipe gallery based on the gray relational degree risk assessment model. Combined with the domestic and international four integrated pipe gallery project and the safety risk of the integrated pipe gallery construction project, according to the analysis of gray relational degree, the main risk factors affecting the construction safety of the integrated pipe gallery are the construction management rather than the design and technical factors that people often think. This conclusion is in line with the statistical result of the ratio of underground construction accidents in 2010, which proves the applicability and rationality of the model. It shows the reliability of the evaluation results and provides reference for the decisionmaking of construction enterprises＇ safety risk.