Research On Advanced Detection Forecast Interpretation Technology And Intelligent Management System Under Complex Geological Conditions

With the rapid development of our country’s transportation industry,the number of deep-buried long tunnel projects is increasing.In the process of tunnel excavation,bad geology of various origins often becomes the main controlling factor restricting tunnel construction.In order to ensure the safety of personnel,and rapid excavation of tunnel construction,physical detection technology is often used for advanced detection and forecasting.Among them,TSP and geological radar advanced detection and forecasting methods are widely used in tunnel engineering.However,the geological interpretation analysis of TSP and geological radar advanced detection image information is a complex system engineering.There is no unified interpretation standard in complex geological environment.The experience of advanced detection technicians is still needed,and the forecast accuracy rate is low.Therefore,its methods and technologies still need to be continuously improved in engineering practice.This thesis is based on the Tianheshan Tunnel Project of the Hexing Railway,combined with the research results of advanced detection technology application and data interpretation at home and abroad,and conducts research on the shortcomings of the tunnel advanced detection image analysis and interpretation technology under adverse geological conditions.The main research contents and conclusions are as follows:First of all,the basic principles of TSP and geological radar advanced detection and forecasting are introduced in detail,and the basic principles of forward simulation of time domain finite difference method are introduced,and the process of detection and acquisition,data interpretation and processing is clarified.The GPRSIM forward modeling software is used to perform numerical simulation calculations on the fault fracture zone and karst bad geological bodies encountered during construction,and the response characteristics of electromagnetic waves in the bad geological results map are summarized through the simulation results,and the important theoretical basis for the research of geological interpretation technology is determined.Secondly,in view of the interpretation of TSP and geological radar’s advanced detection image information,a comprehensive comparison of a large number of related theories and experiences,puts forward the main factors affecting the interpretation accuracy of advanced detection,and proposes to improve the image solution of the detection and prediction system for various interference factors.Summarized into the accurate collection of original data,reasonable software processing,and strengthening the overall understanding of the tunnel.At the same time,the forward analysis results are combined with the characteristic images in practical applications,and the interpretation signs of TSP images and geological radar images under complex geological conditions are summarized.Finally,under the guidance of interpretation theory,using TSP and geological radar advanced detection as the basic methods,combined with comprehensive advanced detection and forecasting methods such as engineering geological survey,infrared water exploration,and advanced drilling,reasonably organize advanced detection and forecast technology to comprehensively forecast the bad geological body of Tianheshan Tunnel.Comprehensive forecasting of geological bodies,proposing reasonable and effective forecasting schemes for different complex geological conditions,and using GPRSIM forward modeling technology to perform advanced prediction forward analysis on the measured radar result images to verify the correctness of detection interpretation and optimize the combination of tunnel detection techniques under complex geological conditions.Then,on the basis of the advanced detection and interpretation information of the Tianheshan Tunnel,a comprehensive information management system for the advanced detection and prediction of the tunnel was developed using software engineering technology,which realized the comprehensive query,modification,storage and deletion of the advanced detection result information and other functions by the computer system and other functions.It facilitates the forecast information management of advanced detection technicians,provides auxiliary forecast information for engineers,and improves the detection accuracy and forecasting efficiency of multiple detection methods.