Application of Comprehensive Geophysical Exploration Technology in Advance Geological Prediction of Diversion Tunnel Project
Each forecasting method has its own certain limitations.Selecting a suitable combination of advanced geological forecasting method and surface detection method can improve the accuracy and economy of advanced geological forecas-ting.This study analyzes the advantages and disadvantages of commonly used advanced geological forecasting methods and surface detection methods and determines their applicable ranges.In the case of a water diversion project,according to its construction characteristics,seismic wave method and induced polarization method are used inside the tunnel,and magneto telluric method is used outside the tunnel.This comprehensive detection scheme accurately forecasts the fractured and water-bearing rock mass within a range of 0 to 80m ahead of the heading face,as well as the water-bearing anticline struc-tures within a range of 80 to 350m,which can guide the construction and effectively avoid related risks.It improves the ac-curacy and cost-effectiveness of advanced geological forecasting and provides a reference for the selection of comprehen-sive detection schemes.
advanced geological forecastingmagneto telluric methodwater diversion projecttunnel construction
万方数据
维普
