Application of TSP and Advanced Drilling Geological Prediction Technology in Construction of Qiyueshan Tunnel

Some kinds of geological disasters such as karst, water and slurry gushes often broke out in karst area during construction of a tunnel. So the precise and immediate advanced forecast and auxiliary techniques, which are the key problems to be researched and resolved current in tunnel construction in karst areas, should be wed in order to pass through numerous harmful geological zones in the process of construction. TSP203 plus system and exploitation water of advanced drilling are used to forecast the karst crannies in right of the Qiyueshan Tunnel and to guide pre-drapery injected, which gains good results. This method might be used as a source of reference in future similar projects.