Dear Researchers,
1. The soil improvement technique Deep Soil Mixing (DSM) is very common presently. How do we model the DSM columns of a given site in PLAXIS?
2. While liquefaction risk is present after doing analysis in Plaxis 2D, what measures can be taken to prevent liquefaction ? and can those measures be modelled/applied in Plaxis 2D?
In Plaxis 2D, you can model the Deep Mixing Columns as an axi-symmetric problem. The properties of the column material can be measured either experimentally or fro literature.
To prevent liquefaction, you have to use materials of high permeability in the columns such as coarse gravel or rocks to work as rock drains.
Thank you Mr. Mohammed Yousif Fattah. Can you elaborate more in the 'axi-symmetric problem' ?
Thank you.
Dear Ahmad,
I recommend you to use Flac3D instead of plaxis2D. Plaxis2D is not enough powerful for this issue.
Good luck
You can convert from 3D to 2D using an averaging technique mentioned in ppt for numerical simulation of DEEP MIXED column using plaxis 2d
https://navier.enpc.fr/events/w(h)ydoc05/presentations/Vogler-Krenn-w%28h%29ydoc05.pdf
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