Study and Application of Forecasting System for Water Inrush Under High Pressure in Xiamen Submarine Tunnel Construction Based on GIS

To ensure the project safety of Xiamen submarine tunnel, it's necessary to study the risk of water inrush under high pressure to provide a reference for prevention and control measures. With the support of GIS software, a forecasting system for water inrush in Xiamen submarine tunnel was researched and developed, which realized the automated process from basic data input to the result assessment of water inrush. The technical route was that the results of numerical simulation have been evaluated by professional model. The findings of the evaluation have been regarded as its background database which has been updated with real-time geological data and groundwater data during the tunnel construction. The forecasting system has been studied by simulation tools of FLAC 3D, MAPGIS as its basic platform and VC++ as the developing tool. System functions include data input and output, data query, water inrush forecasting and result display function. The application of this system in Xiamen submarine tunnel engineering construction indicates that the system can provide a relatively correct engineering guarantee for water detection in safe tunnel excavation.