Prediction and Prevention Water Technology in Long and Big Tunnel Construction

Abstract：On the basis of discussing geological character in the region of water gush and inflow, the paper detailedly introduces the technology of water gush and inflow in tunnel construction.In general, the measure of advance geology forecasting is adopted and a program is established to deal with the exceptional situation under complicated geological conditions, which can reduce the probability of water gush and inflow and ensure safety of builders effectively.In the technology of flooding control, the measure of grouting for stopping up water before or after excavated is adopted based on the amount of Inflow.

Keyword：tunnel;water gush;prediction and prevention;