| 摘要 |
<p>A tension leg (5) of a considerable length, such as 200 m to 700 m, constructed by joining together pipe sections on land, where the pipe diameter is typically between 0.5 m and 1.2 m and is designed as a body of nearly neutral buoyancy in water, and the tension leg (5) has a connector (4, 6) provided at each end thereof, the 'lower' connector (6) is adapted for attachment to a bottom anchor (9), and the 'upper' connector (4) is adapted for attachment to the tension leg platform (10) itself. The tension leg (5) is a hollow body completely sealed against water penetration, and the tension leg (5), is, in addition, equipped at the 'upper' end (5A) thereof with an additional buoyancy member, for the purpose of serving both as buoyancy member during towing out, as a pivot point for the tension leg (5) during installation from the horizontal float-out position to the vertical installed position, and as a buoyancy member in the leg's (5) vertical position in the installation phase and, after attachment to the platform (10), of having a weight neutralizing effect on the tension leg (5) itself so that its own weight adds little weight to the platform (10).</p> |
