| 摘要 |
<p>The invention concerns a fall pipe for dumping materials onto a bottom situated under water, characterised in that it is mainly composed of a series of tubular elements (1) supported by at least two cables, which elements (1) are provided at both ends with a flange (3, 4) defining together with a flange (4, 3) of an adjacent tubular element (1') an annular space (5) wherein at least one resilient sealing ring (6) is applied between said flanges (3, 4). <IMAGE></p> |
