| 摘要 |
<p>The invention relates to a tunnel driving method, wherein the tunnel is drilled by means of percussion and/or rotatable tool/tools and removal of drill waste off the tunnel effected by means of a rotating conveying drum comprised of drum elements joined together one after another. According to the invention, the driving power is transmitted to the drill head (19) by means of frames of support rollers supporting and bearing the conveying drum (1).</p> |
