Two dimensional numerical analysis of PVDs under an embankment with different matching methods

Because of the significant amount of vertical drains beneath a real embankment in soft soil, it is must be examined in three dimensions (3D). Nevertheless, 3D modeling is extremely difficult, taking time, as well as requires an efficient machine. As a result, axisymmetric vertical drains require being transformed to identical plane-strain settings before being evaluated in 2D. Various matching methods using the unit cell concept were established throught the published work, and these methods are implemented by modifying the drainage spacing and/or permeability of the soil in accordance with the fundamental requirements. The present study examines the performance and accuracy of different matching methods to use in the numerical assessment of large-scale consolidometer along with two different case study full embankments. The computational study was performed using the numerical program PLAXIS 2D. The settlement and Excess Pore Pressure (EPP) findings have been compared to the experimental and field measurement. The numerical analysis findings show that the matching approaches give extraordinarily well with field measurement when the smear zone is included. This is evident that these approaches provide both valuable answers and advantages to geotechnical researchers and engineers.