Study On Advanced Geological Prediction's Optimization Technology For Hydraulic Tunnel In Unfavorable Geological Area

During the process of hydraulic tunnel's construction,advanced geological prediction is an effective method which can ensure the construction's safety,through decades of development,several kinds of geophysical method like electromagnetic method which represented by geological radar and infrared water detector,elastic wave method which represented by TGP and TSP have came into birth,and those method did provide a certain extent help for the determination of unfavorable geological conditions.In recent years,with the rapid development of the transportation industry,geological conditions in our project become more and more complex which directly lead the accidents caused by unknown geological conditions keep increasing year by year,and traditional unitary prediction's shortcomings gradually emerged.Study the optimal combination of existing prediction methods and instruments has great significance to improve the accuracy of geological prediction.The main research contents of this paper include four aspects:(1)Briefly introduced the prediction method which commonly used in engineering,take the TSP and geological radar as main research object,make an objective evaluation for its practical application in our practical project.(2)Take one practical project as our research subject,we based on the application of TSP and GPR in advanced geological prediction,put forward a series concrete optimization measures.(3)In order to find a way to screen the theoretical optimal scheme from several preselected schemes,fuzzy optimization theory in system engineering is introduced(4)Considering the complexity of advanced geological prediction,we regard the whole prediction work as a compete system,initially established a comprehensive geological prediction system for our practical project,and evaluated advanced geological prediction's optimized combination technique's effect.