Hello PLAXIS team
I am interested to model a diaphragm wall in each both EI1 and EA1 ( vertical) are still 100% of the isotropic case, but EA2 and EI2 are reduced to 20% and 1% respectively. This is based on the Geotechnique paper (ZDRAVKOVIC et al 2005 - Modelling of a 3D excavation in finite element analysis) that recommends this approach to model the anisotropic behaviour of the diaphragm walls ( due to the joint discontinuity in the horizontal direction). See the table and figure below that illustrates what I am trying to accomplish
My question is how I can assign this in PLAXIS 3D?
It is my understanding that when trying to model an anisotropic plate in PLAXIS 3D, the program uses the inputted E1 and E2 to calculate an E1/E2 ratio. This ratio then is used to define both EI1/EI2 and EA1/EA2 ratios. Hence the EI1/EI2 and EA1/EA2 ratios cannot be specified separately.
Are there any plans for future PLAXIS 3D versions to allow to specify this ratio directly into the program? Is there any workaround to overcome this modelling limitation?
This approach is also applicable for secant or contig pile walls modelling.
Thanks