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超前地质预报在长大隧道施工中所发挥的作用越来越受人们关注,以地质雷达、陆地声纳法、瞬变电磁法在肇兴隧道施工的应用为例,介绍了三种方法的基本原理,并指出采用多种预报方法进行综合地质预报,预报准确率明显提高,并以此来解决隧道不良地质条件下的超前预报问题,进一步指出超前地质预报在隧道施工中的重要作用。
The role of advanced geological prediction in the construction of long and large tunnels has drawn more and more attention. Taking the application of geological radar, terrestrial sonar method and transient electromagnetic method in the construction of Zhaoxing Tunnel as an example, the basic methods of three methods Principle and pointed out that using a variety of forecasting methods to carry on comprehensive geologic forecasting, the accuracy of forecasting is obviously improved, so as to solve the advanced forecast problem under the adverse geological conditions of the tunnel and further point out the important role of advanced geological forecasting in the tunnel construction.