Ground settlement monitoring is an important component of shield informatization construction

and it has a very important significance in optimization of shield tunneling parameters and safety of construction. In order to share and feedback monitoring results timely

improve efficiency of monitoring information management and data analysis

an automatic monitoring and mobile data publishing system of ground settlement is developed by using Microsoft Visual Studio. Net programming technology and MySQL database to realize 24 hour automatic acquiring

analysis and mobile publishing of monitoring data. And then the system is applied to the project of shield tunneling of Nanning Metro Line 1 traversing below tracks and buildings of Nanning Railway Station; the variation law of ground and track settlement caused by shield tunneling has been obtained. By the in-time feedback of monitoring data and analysis results

the construction parameters of shield machine is optimized so as to effectively ensure safety of shield tunneling and surrounding environment.