A Tension Leg Platform Adapting to Tidal Range Through Connecting Holes

Abstract

The invention provides a tension leg platform adapting to the tidal range through communication holes. A reserve buoyancy compartment, a tidal range adaptation compartment, a buoyancy compartment body and a ballast compartment are arranged from top to bottom in sequence. The center position of the reserve buoyancy compartment is provided with the first communication hole, the upper end of the first communication hole communicates with atmosphere, and the lower end of the first communication hole communicates with the tidal range adaptation compartment; the second communication hole is formed in the center positions of the buoyancy compartment body and the ballast compartment in a penetrating mode; the upper end of the second communication hole communicates with the tidal range adaptation compartment, and the lower end of the second communication hole communicates with seawater; and tension legs are symmetrically arranged between the lower end of the ballast compartment and the seabed. When the tidal range is changed, the liquid levels inside and outside the tidal range adaptation compartment always stay the same, and thus the platform has a small waterline plane area. According to the tension leg platform adapting to the tidal range through the communication holes, the requirements for the strength of the tension legs are reduced, the project cost can be effectively reduced correspondingly, and an effective scheme is also provided for using tension mooring on the shallow sea.

Description

technical field [0001] The invention relates to an offshore floating structure, in particular to a tension leg platform adapting to tidal range through communication holes, which belongs to the field of ships and ocean engineering. Background technique [0002] Under the action of waves, the marine floating platform will move in six degrees of freedom, which will affect the normal work of the structure. Choosing a suitable mooring method can reduce the motion response of the floating platform and improve the working efficiency of the platform. With the tensioned mooring platform, the relative displacement between the platform and the seabed is very small, and the platform has good motion performance. However, due to the influence of tidal range, the buoyancy of the platform changes greatly at high tide and low tide, resulting in large stress changes and structural deformation of the tension leg of the tension mooring, which requires high strength of the tension leg. The pro...

AI Technical Summary

Problems solved by technology

However, due to the influence of tidal range, the buoyancy of the platform changes greatly at high tide and low tide, resulting in large stress changes and structural deformation of the tension leg of the tension mooring, which requires high strength of the tension leg. The project cost is also relatively high

Tension moorings are used in deep sea areas. In shallow seas, tension mooring has higher requirements on the strength of tension legs. At present, there are no engineering examples of using tension mooring in shallow seas.

Images