宁波市地铁1号线深基坑施工风险研究

摘要

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。%　　Concerning Lot.III for deep excavation on Ningbo metro line 1, the paper pointes out the technical problems that may exist in foundation engineering and identification of sources of risk. By using expert investigation method and analytic hierarchy process (AHP), combining risk analysis methods for quantitative assessment of the risk that may exist in the foundation excavation process, it determines level of risk and weight. The results show that,foundation excavation and construction risk weight are the biggest, being the higher in the level of risk, and the highest value in transfer node construction risks in a variety of construction risks.