Development of internet-based information system for metro shield launching and arrival engineering

Due to the complexity of the stratum geology and construction space, launching and arriving are the main risks during the metro shield construction. The database system of existing cases provides scientific decision support for new similar engineering designs, which reduces the risks of shield launching and arriving. Through collecting, sorting, and analyzing the engineering cases using Java+SQL Server, an information system for metro shield launching and arriving based on the internet was developed, which efficiently shares the engineering case database in the network. The main results are as follows: Based on the theoretical calculating formula and JavaWeb method, stratum stability criterion and the reinforcing range calculation of the metro shield launching and arriving have been achieved by software programming. The information of metro shield launching and arriving was classified and then the database structure was designed. The engineering case database of metro shield launching and arriving was established by more than 100 different regional and stratigraphic cases. An information system for metro shield launching and arriving based on the internet was developed, which realizes the query statistics of the engineering case database and standard knowledge base, reinforcement scheme reasoning, reinforcement scope calculation, and risk assessment. © 2022, Editorial Board of Journal of CUMT. All right reserved.