The TSP of Advance Geological Forecast System and Its Application in the Tunnel Construction

In order to perform geological prediction in section K30+708^K30+673 of Xuecheng tunnel for the construction of a tunnel, 24 excitating holes were aranged on the right wall segment, and one receiving hole was arranged on right and left side of each wall in the section of K30+728.The exit of section K30+652^K30+540 was tested and the test data were processed and analyzed by using TSP.Comprehensive analysis of the prediction was conducted according to the actual excavation of rock, the measured longitudinal wave velocity and rock sonic velocity and seismic reflection data interface map, and combined with the TSP.Test results show that the application of TSP test technology in the safety construction of Xuecheng tunnel is feasible.