PVD, Drain

Question

hello I want to ask about soil improvement modeling using PVD. I'm currently modeling soil improvement using PVD with a plan strain model on Plaxis 2D, does equivalence need to be done if modeling using PVD with a plan strain model?

Vasileios Basas · Answer

Hi Randy, In order to simulate the 3D condition in reality, i.e. radial drainage, the 2D finite element (FE) model needs to be adjusted. Such adjustment can be achieved via geometric and/or permeability matching. In the past, various methods for modelling the PVD-improved subsoil in plane strain analysis were presented, which can generally be classified into four categories [see Shinsha et al. (1982), Sekiguchi et al. (1986), Hird et al. (1992), Asaoka et al. (1995), Chai et al. (1995, 2001), Kim et al. (2018), etc.] I suggest that you research the available material on the subject. It will undoubtedly help you.