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文章针对宁波地铁1号线Ⅲ标深基坑工程,指出基坑工程中可能存在的技术问题;对风险源进行辨识,采用专家调查法和层次分析法(AHP)相结合的风险分析方法,对该基坑工程施工过程中可能存在的风险进行定量评估,确定风险等级及权重。结果表明,在各种施工风险中,基坑开挖施工风险的权重最大,风险等级较高,而换乘节点施工风险量值最高。
In this paper, aiming at the standard deep foundation pit project of No. 1 line of Ningbo Metro Line 1, the possible technical problems in the foundation pit engineering are pointed out. The risk sources are identified by using the risk analysis method combined with expert survey and Analytical Hierarchy Process (AHP) The risk of the pit during the construction process may be quantitatively assessed to determine the risk level and weight. The results show that in all kinds of construction risks, the risk of excavation has the highest weight and the risk level is higher, while the construction risk of transfer node is the highest.