The repeated motion of steel catenary risers (SCR) at the touchdown zone is one of the key factors considered in SCR design. Soil behaviours under different pipe velocities further complicate the accurate assessment of pipe-soil interactions. In the present research, a vertical pipe-soil interaction model test system was developed in this research study to investigate the effect of pipe velocity. The experimental results under soft clay condition indicated a close relationship between soil behaviour and pipe velocity, and the increase of cyclic number was also attributed to the progressive softening and trenching effect of soil until relative stabilisation. A new backbone curve model considering pipe velocity was obtained based on the validated coupled Eulerian-Lagrangianmethod, and the accuracy of the model was verified by the experiment results.


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    Title :

    Experimental and numerical investigation of vertical pipe-soil interaction considering pipe velocity


    Contributors:

    Published in:

    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    50.92 / 50.92 Meerestechnik / 55.40 / 55.40 Schiffstechnik, Schiffbau




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