Application And Comprehensive Anatysiof Geological Forecas In Daqinling Tunnel Of Xi Cheng Special Railway Line

During the large section tunnel construction over passenger line, tunnel geological prediction plays an important role in Information construction and concerns tunnel construction quality and safety. This tunnel engineering is the control engineering in the railway, Tunnel construction safety and schedule decides so much about the whole railway opening time, which plays a crucial role in the whole road network.Advanced geological forecast can be used to detect hydrogeology & engineering Geology abnormal situation, and achieve the objective of taking measures in tunnel excavation and controlling geological disasters. Through the way of surrounding rock geological sketch, scene data acquisition, software processing and mathematical model simulation, this paper make an exhaustive study on the Xi Cheng special railway line tunnel. The main research content and achievements as shown below:1. This paper emphatically discusses some common methods of geophysical detection method, and expounded emphatically the theory foundation, instrumentation configuration, scene data acquisition and software. processing of Tunnel Seismic Prediction (TSP), also the working method and principle of Ground Penetration Radar (GPR). The thesis makes an exhaustive study on the application of the comprehensive geological forecast method by rule of thumb, with TSP and GPR comprehensive application.2. The geological survey data and disaster analysis in tunnel site was detailed analysised, the type of geological disasters. that may occur in Xi Cheng special railway line tunnel were analysised.3. On the basis of the analysis on the status and trends of the surrounding rock burst in underground engineering, using the method is based on the help of fuzzy math theory and method, in view of the surrounding rock in rock burst categories and assessing indicators of the" fuzzy "relations, the establishment has been made of Fuzzy Information Classification System of the highway tunnel dedicated rock. This realized the combination of qualitative and quantitative determination, and achieved realatively good result after engineering Practice.