| 摘要 |
PCT No. PCT/FR91/00261 Sec. 371 Date Mar. 24, 1993 Sec. 102(e) Date Mar. 24, 1993 PCT Filed Apr. 2, 1991 PCT Pub. No. WO91/15695 PCT Pub. Date Oct. 17, 1991.A method for laying a pipeline formed of joined rigid and flexible tubular conduits on an underwater surface, particularly an ocean bed, by using a floating support. The method includes the steps of: loading onto the floating support a length of flexible tubular conduit; laying from the support a length of rigid tubular conduit; connecting the ends of the two conduits together; lowering the conduits; and halting the lowering when the rigid conduit hits bottom, while the other end of the flexible conduit is still in the floating support.
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