以成都地铁1号线三期首期工程穿越东寺停车场出入场线为依托,从前期施工的加固措施、施工控制措施以及施工监测措施进行了有益尝试并取得了较好的效果,形成了一套对于地铁盾构区间穿越停车场出入线施工技术,施工验证其累计沉降位移均处在安全的位移范围.%Because buildings are dense in cities, the development and utilization of urban underground space will inevitably have an impact on the projects already built on the ground, so that the surrounding environment of the already-built projects will be changed and even unpredictable risks may even occur. With the first phase of Phase III of Chengdu Metro Line 1 passing through Dongsi parking lot access line as an example, some beneficial attempts were made in this paper from the aspects of reinforcement measures at early stage, construction control measures and construction monitoring measures. Also, a set of construction technology of metro shield interval passing through the parking lot access line was formed and it was verified during the construction that the cumulative settlement displacement is within the safe range of displacement.
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