Research on application of ground penetrating radar method in detecting side walls and small targets of Karst tunnel

In the tunnel projects construction process of our country, there are many crossing karst areas situations. Advanced detection abnormal geological bodies in is essential to ensure safety construction. This paper takes Guizhou Provonce Expressway Project—Xinjie Tunnel as an example. By studying overall situation Xinjie Tunnel, basic principles Ground Penetrating Radar and explained. The methods effects Side Walls Small Targets explained by real examples. that may be encountered trying avoid possible disasters process, very important provide guarantee for