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Monitoring of Subgrade Settlement at Exit Section of Namao Tunnel of Guinan High-speed Railway

Guinan High-speed Railway (Guiyang-Nanning High-speed Railway), referred to as Guinan High-speed Railway, is a high-speed railway in China that connects Guiyang City, Guizhou Province and Nanning City, Guangxi Zhuang Autonomous Region. It is the main channel of China's "eight vertical and eight horizontal" high-speed railway network. One of the important components of the "Bao (Yinhai) Passage" is the first high-speed railway with a speed of 350 kilometers per hour in Guangxi and Guizhou. The project started construction in December 2016 and opened for operation in August 2023. The total length of the line is 482km, with 12 stations and a design speed of 350 km/h.

The subgrade settlement monitoring project of the exit section of Namao Tunnel of Guinan High-speed Railway adopts the automatic settlement monitoring level meter of the Industrial Information Technology to realize front-end data sensing, and realizes data collection, transmission and cloud storage through the automatic monitoring system of the Industrial Information Technology. The user views the management data through the login webpage or mobile phone APP, alarms when the monitoring data exceeds the threshold, and notifies relevant personnel to pay attention to the structural safety in time through short messages, emails, etc.