| 摘要 |
Channel element and method for laying pipelines underground for bringing ashore, for example, gas and/or oil in regions where the seabed (2) consists of loose masses such as sand, in particular in beaches and marshlands. This channel element (1) comprises an upwardly open cross section with sidewalls (1A, B) and a bottom (13) which internally is adapted to support one or more pipelines (3). There is provided a plate-shaped skirt (11A, B) along each side of the channel element (1) and projecting below the bottom (13) thereof, substantially aligned with each respective sidewall (1A, B). In the space (16) between the skirts (11A, B) underneath the bottom (13) there are provided nozzle devices (14, 14A, B) for supplying water and fluidizing loose masses in the space (16). Moreover there is provided at least one suction tube (17) for connection to an external pump and having its mouth (17C) open into the space (16) for removing fluidized loose masses therein. |
