摘要
Based on recent karst hydrogeology theories and engineering practices both home and abroad, the authors propose “the four-step modeling method of the comprehensive forecast of the water inflow in karst tunnels”. This method uses the theories and methods of Earth System Science and the system theory principles and analogical methods, starts with various geological survey and monitoring methods, combines the discussion of equation,physical modeling and BP neural network model, and conducts a comprehensive forecast study of the water inflow in karst tunnels.