6.3. Stability Design of Submarine Pipelines

The stability of submarine pipelines includes several aspects. One refers to the strength studied in Section 6.2. For example, the local or overall stability of the pipeline is analyzed by the buckling strength. The other refers to the stability of the position—the stability of the location of the seabed when and after laying of the pipeline; this is the content of this section. Here, stability is mainly analyzed from several perspectives that affect the submarine pipeline’s location. The factors to consider include wave and current forces, the vibration triggered by the vortex, the properties of pipeline foundation soil, and floating or sinking of the buried pipeline. The following subsections introduce ...

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