隧道掘进中掌子面前方岩石结构的超前预报

以地球物理勘探方法进行隧道掘进中前方岩石结构的超前预报，具有快捷、准确和实时处理及显示的优点。通过该方法可及时、详细地了解开挖掌子面前方岩石结构情况，为施工单位合理安排施工进度和减少工程隐患提供依据。以吉林省白山市石碑岭隧道掘进中所进行的超前预报为例，介绍了地质雷达和地震反射波法在这一领域里的应用。

PREDICTION OF ROCK STRUCTURE IN FRONT OF FACE DURING TUNNELING

The prediction of rock structure in front of face during tunneling using geophysical methods has the advantage of high speed and accuracy. Using this method, we are accurately informed the rock structure in front of the face of tunneling and we may provide information for further construction. The information is very important in arranging the tunneling method and reducing the risk of work. This paper gives an example of Shibeiling tunnel in Baishan city, Jilin, and introduces the GPR and seismic method applied in the field.