| 摘要 |
A knife-shield driving device for the excavating and support in the excavating and/or final support region upon the making of galleries, tunnels, shafts or similar elongated structures has drive knives which can be acted on via a pushing device. The drive knives are guided with respect to each other on their longitudinal sides. Guide arches which support the knives are also provided. The guides on the drive knives consist of wedge elements which are guided in yokes.
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