| 摘要 |
<p>Disclosed are methods and devices for constructing tunnels. A slot cutter for cutting a slit (105) is provided with a tool at the front. Said tool is used for removing material. The slot cutter is also provided with a removal device (231-234) behind said tool. Said removal device can be used for removing material. The working method of the inventive device can be synchronised with apparatuses which excavate material. The slit is at least partially filled with concrete and the material is excavated. A supporting device (400) can then be used until the concrete has definitely hardened. A digging device can be mounted on a moveable frame.</p> |
