D modeling
==============


Characteristics of modeling
-----------------------------------

The D modeling uses the equivalent linear model implemented under *Code_Aster* in Macro-command DEFI_SOL_EQUI [:ref:`U4.90.21 <U4.90.21>`] with an outlying rock loading and a plane wave approach by considering a 1D — 3 components hypothesis. Modeling D adopts the boundary conditions and loading defined in the reference problem.


Tested sizes and results
------------------------------

The results of the C modeling are taken for reference at two levels of the soil column, points B (inside layer 4) and E (inside layer 5).


.. csv-table::

    "**Identification**", "**Reference type**", "**Reference value**", "**Tolerance**"
    "Point :math:`B` - G/Gmax", "'AUTRE_ASTER'", "7.646289E-01", "2%"
    "Point :math:`E` - G/Gmax", "'AUTRE_ASTER'", "7.69538E-01", "2%"
    "Point :math:`B` - AH", "'AUTRE_ASTER'", "5.895508E-02", "2%"
    "Point :math:`E` - AH", "'AUTRE_ASTER'", "5.86044E-02", "2%"
    "Point :math:`B` - Gamma_max", "'AUTRE_ASTER'", "1.462670E-04", "10%"
    "Point :math:`E` - Gamma_max", "'AUTRE_ASTER'", "1.36578E-04", "5%"