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Application of integrated geological prediction in expressway tunnel

Because of the complicated geological conditions of tunnel surrounding rocks, it is of necessity to operate geological prediction during tunnel construction. Geology analysis, seismic wave method (TSP was adopted) and GPR (ground penetrating radar) are used to make prediction in the construction of Gaojiabao Tunnel. The utilization of several prediction methods that can be seen as an integrated prediction system can avoid one-sided conclusion obtained by single method. Moreover, ach conclusion can be checked and made up mutually. The application result shows that the prediction conclusions are relatively accurate, which can meet the needs of safe construction.