Abstract:

 Compared to the construction methods of the other underground works, the shield tunneling method has its own special features, therefore the geological investigation for the shield tunneling works also has its own special requirements. On basis of the features of the shield tunneling in mixed ground, the authors make some recommendations on the content/quantity optimization and stage division of the geological investigation works in the paper.

Key words:  , mixed groundshield tunnelinggeologyinvestigation