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以邻近天津地铁1号线高架线路的“新八大里”六合里地下空间基坑工程为背景,结合现场监测数据的反馈,采用有限元软件ABAQUS建立三维有限元模型,模拟基坑开挖对邻近地铁高架线路及附属用房的影响。计算结果显示,地铁高架线路及附属用房的各项变形控制指标均在允许范围内,基坑设计中所采取的地铁保护措施能满足地铁正常运营的要求,为同类工程的设计与施工提供了有益的参考。
Taking the construction of “Xin Ba Da Li” Liu He Li underground space adjacent to Tianjin Metro Line 1 as an example, the finite element software ABAQUS was used to establish the three-dimensional finite element model based on the feedback of on-site monitoring data to simulate the excavation of foundation pit Impact on the adjacent metro lines and ancillary buildings. The calculation results show that all deformation control indexes of subway elevated line and ancillary buildings are within the allowable range. The subway protection measures adopted in foundation pit design can meet the requirements of normal operation of the MTRC and provide the design and construction of similar projects Useful reference.