Page 41 - Pipelines and Risers
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          AXIAL
          LOAD
          M PIPE


       Figure 1.5 Flowline stability and expansion.
       To summarize, the aim of the type of  analysis described is to determine the additional weight
       coating required.


       Should the  weight  of  the  concrete required for  stability make  the  pipe  too  heavy  to  be
       installed  safely  then  additional means  of  stabilization will  be  necessary.  The  two  main
       techniques are:
          To remove the pipeline from the current forces by trenching;
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