| 摘要 |
<p>A method and an apparatus for laying pipes of low bearing force like a vinyl chloride pipe and others in the ground with a propulsion pipe-laying method, wherein an excavation means to excavate a tunnel to lay pipes therein is propelled into the ground by propulsion force exerted on propulsion shafts jointed behind the excavation means while the pipes to be laid is run over the propulsion shafts and the propulsion shafts are one after another jointed to propulsion shafts and the pipes to pipes. The propulsion shafts have, on the outer periphery thereof, supporting means, which rigidly supports pipes in touch with the inside surface of pipes run over the propulsion shafts. With this supporting power, pipes to be laid are propelled into the tunnel in accordance with an advancement of the propulsion shafts.</p> |
