| 摘要 |
<p>1. Apparatus for the positioning of a submarine channel (2) comprising elements assembled end-to-end on board a transporter such as a platform or a ship (1) equipped for this purpose and in which the channel (2) is gradually released in a substantially vertical direction during the course of assembly of the said elements which are connected end-to-end to the extremity of the part of the channel which has already been released, the said apparatus being of the type comprising at least one loading mast capable of swinging between a substantially horizontal position and a substantially vertical position, at least one positioning mast equipped with engagement and displacement means which permits a channel elements (4, 9) loaded on to it to be engaged and displaced in a direction parallel to it and substantially vertically, control means for the said engagement and displacement means capable of lowering the said channel element under a substantially constant tension independent of pounding movements of the transporter and substantially coaxial with the free end of the part of the channel (2) which has already been released, gripping and supporting (21, 22) means for the said end, as well as control means for the said gripping and supporting means which are capable of supporting the said end under a substantially constant tension independent of pounding movements of the transporter, the said apparatus being characterised in that in order to simplify and accelerate the operations in positioning the channel, the loading mast and the positioning mast are merged, and two such masts (5, 7) are provided to operate alternately, these masts being capable of being arranged substantially horizontally, one in a direction of the transporter and the other in the opposite direction.</p> |
