Abstract:With the development of rail transit, more and more underground projects, especially the foundation pit projects, will inevitably be close to the existing or new subway areas, which poses a higher challenge to the monitoring of subway protection. Taking a foundation pit in Hangzhou as an example, the monitoring design of the tunnels and stations within the subway protection areas in this project construction is specially introduced. The reliability of the scheme is demonstrated through strict monitoring, automatic monitoring and manual retest, which provides the guarantee for the safe operation of the subway.