关键词: TSP隧道地震预报, 岩溶隧道, 溶洞, 暗河

Abstract: Hydrogeological and engineering geological conditions of tunnels， in karstdeveloped areas, are always highly changing and complex. In engineering investigation work, it is difficult to prove positions, sizes and properties of bad natural geological bodies, which may induce geological hazards in the course of construction. In order to avoid security accidents triggered or produced by rough construction such as water flush, mud (sand) rush, collapse etc, it is urgent to do research on the predictions of bad natural geological bodies in the construction period. TSP can effectively predict positions, sizes and properties of bad natural geological bodies which are located 100～150?m ahead of the tunnel working face. Using TSP geological forecast technology to probe karst tunnels, several TSP forecast examples of the highway tunnel in a karst zone were thoroughly analyzed, the exact responses of underground river and karst caves were established, and the distinguishing rule was obtained.Future work for similar geological forecasts could be guided to some extent.

Key words: TSP, karst tunnel, karst caves, underground river