| The tunnel projects are more and more with the rapid development of the national economy. Because of the condition of the complex engineering geology in the karst area, the serious disaster accident of the tunnel project occurs frequently. The advanced geology forecast could avoid the significant geological disaster, so it has the great important significance to the tunnel construction. This article is based on the Qiyueshan tunnel of the Yiwan railroad, in view of the main problem of the tunnel during the karst mountainous area and the main technology of the advanced geology forecast.The first part of the paper has done the research work of the advanced geology forecast, which takes the Qiyueshan tunnel of the Yiwan railroad as the background. It has carried on the detailed research analysis to the Tunnel Seismic Prediction 203, the Ground Penetrating Radar, the Infrared Detector and the RPD—150C. At the same time, we analyze their primary data to obtain the bad geological disaster body and the basic manifestation in each survey method.The second part of the paper unions the research results and the data of early period. The following Processing system for the integrated system of the tunnel is developed using Visual Basic 6.0 as foreground development Program and using Access2000 as background database. It simultaneously unions the three dimensional geographic pattern and has built a visualization system platform, through which we could obtain the very accurate and vivid results. |
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