双盾构下穿秦淮河施工监测数据分析和数值模拟研究

摘要

以南京地铁三号线泥水平衡盾构下穿秦淮河施工为背景,对施工期的监测数据进行分析整理,揭示了双盾构下穿秦淮河施工沉降的规律.同时采用有限元中的渗流应力耦合算法对双盾构下穿秦淮河的施工过程进行模拟,对双盾构下穿秦淮河施工的沉降规律进行验证,以此揭示双盾构隧道下穿河流的一般规律,为以后的工程实践提供借鉴.%In this study,based on the slurry shields operation in the underground tunnel of Nanjing Metro Line 3,we analyzed the data monitored during construction period and revealed the principle of operation settlement which was induced by slurry shields operation. Meanwhile,we simulated the operation process with hydro-mechanical coupling by using the finite element method. The simulated results,as verification of monitored field data,could be used as a theoretical basis for future related engineering practices.