Application of Advanced Geological Prediction in Tunnel Construction

The geological disaster,such as cave of karst,rushing water and collapse often occur in tunnel excavation.The forecast geological prediction is imperative before tunnel excavation to minimize geological disaster.Prediction and forecast technique as the further realization and supplement of tunnel prospect is important to subtract and prevent hazard.The TSP method was introduced,the external water pressure on lining and calculate model of line structure in tunnel is analyzed.The thesis cites Geleshan Tunnel,as an example,though the geologic term is complicated for abundant water in tunnel,the advanced geologic prediction and infrared ray methods are adopted in the tunnel construction,and are used to forecast the geologic information in tunnel facing frontage and rushing water in tunnel successfully.The forecast results are effective and guide the tunnel construction safety.