The Application of Geological Radar Method in Karst Tunnel of Guiyang Subway
Karst is an adverse geological phenomenon.Karst tunnel construction is prone to engineering accidents such as water gushing,mud bursting and local collapse.Based on the advanced geological prediction technology of geological radar,combined with the karst tunnel project of Beijing West Road Station-Sanqiao Station on Guiyang Metro Line 2,this paper studies the working principle of geological radar,the data acquisition and processing technology of geological radar detection,and analyzes the specific geological radar waveform diagram and detection results.The research results show that the geological radar method is suitable for the advanced prediction of poorly developed karst geology.The geological radar waveform diagram has the characteristics of sharp frequency change and continuous phase axis,and is mainly distributed at medium and low frequencies.The research results can provide reference for similar engineering practice.
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