摘要
地铁具有建设周期长、施工难度大、工程环境复杂、事故易发等特点,近些年,地铁施工风险管理受到重视,也取得了一些经验和成果。本文首先对厦门地铁车站的建设特点进行总结,并对可能发生的事故类型和形成原因进行统计分析。以正在施工的高殿站点为例,通过WBS逐级分解得到的主要工序的失效状态,建立了风险识别指标体系,再基于层次分析法和模糊评价原理建立三级模糊综合评判计算模型,并对该车站基坑施工风险进行评估,计算结果表明该方法合理有效,可为工程分级控制提供参考。
Deep excavations of urban subway system are generally located in those central city areas which are traffic dense, built-up and crowded.The protection of surrounding buildings, roads, engineering facilities, should be necessarily taken into account.In this paper the construction characteristics of Xiamen Metro station are summarized.The accident types are classified and the causes for those kinds of ac-cidents are analyzed in details.Taking the Gaodian station as an example, the failure modes at the construction phase by means of the WBS decomposition method and the indexes of the risk identification are obtained.The three-level fuzzy evaluation models are established to assess the risk for this deep excavation based on the hierarchical analysis method and fuzzy assessment principle.It is showed that the cal-culation results are reasonable.This study would provide the basis and reference for the risk assessment of other metro stations.
出处
《福建建设科技》
2015年第3期51-55,共5页
Fujian Construction Science & Technology
