COMPARATIVE APPLICATION OF ADVANCED GEOLOGICAL PREDICTION TECHNOLOGY IN KARST TUNNEL
The karst and hydrogeological conditions of extra-long karst tunnel are complicated and change-able,and the regularity is poor,blind construction is easy to cause produces accidents,such as mud outburst,water inrush,collapse,and so on.The effective advanced geological prediction is an important guarantee for safe tunneling of tunnels.At present,there is no prediction method that can solve various geological problems.Based on the back-ground of Manle No.1 tunnel of China Laos railway and geological survey,the karst and groundwater development of DK446+465～DK448+580 section is predicted by using TSP,geological radar,transient electromagnetic and advanced horizontal drilling methods,and the geological conditions of the predicted section are basically proved.At the same time,all kinds of prediction methods are analyzed,compared and summarized,hoping to provide some ref-erence for the advanced geological prediction of other karst tunnels.
advanced geological predictionextra long tunnelkarst comparison
万方数据
维普
