摘要 |
The device has a rotatable cutting head (20) that can be driven forward in a machine pipe (25) to make a bore (16) by cutting away ground material at the end and pipes (12) behind the cutting head for insertion into the bore. An injection device (70) has an injection lance (72) extending through the cutting head to inject self-setting material into the material (15), esp. rock, in front of the cutting head.
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