PLAXIS 2D

PLAXIS 2D Advanced enhances your geotechnical design capabilities with more advanced features and material models to consider creep, flow-deformation coupling through consolidation analysis and steady state groundwater or heat flow.

It also solves your problems faster than PLAXIS 2D with the multicore solver.

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With plastic, consolidation and safety analysis calculation types, a broad range of geotechnical problems can be analyzed. Constitutive models range from simple linear to advanced highly nonlinear models through which soil and rock behavior can be simulated.

Extend the capabilities of PLAXIS 2D Advanced with additional Dynamics, PlaxFlow and Thermal capabilities for analyzing the effects of vibrations in the soil, such as earthquake and traffic loads; simulate complex hydrological, time-dependent variations of water levels, or flow functions on model or soil boundaries; and assess the effect of transient heat flow on the hydraulic and mechanical behavior of soil.

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Dynamics Capabilities

Low-frequency vibrations can normally be calculated with a pseudo-static analysis by default available in PLAXIS 2D. However, for more advanced seismic analysis, the Dynamics module provides more capability when the frequency of the dynamic load is higher than the natural frequency of the medium.

Apply advanced model boundary conditions

Apply advanced model boundary conditions when dynamic analysis requires special boundary conditions. In addition to viscous boundaries, free-field and compliant base boundaries can also be selected to reduce spurious reflections of waves reaching the model boundaries.

Apply simple and advanced constitutive models

All material models contain extra parameters, which take into account damping due to material and/or geometry. Calculate excess pore pressure build-up during dynamic excitation with liquefaction models. For soils other than liquefaction susceptible sand, the (Generalized) Hardening soil model with small strain stiffness generally offers a good choice.

Perform dynamic loading with earthquake data

In modeling the dynamic response of a soil structure, the inertia of the subsoil and the time dependency of the load are considered. The time dependent behavior of the load can be assigned through harmonic, linear, or table multipliers. Via table input, users can import real earthquakes signals to perform meaningful seismic design of jetties or foundations. Dynamic multipliers can be assigned independently in the x- and y-directions in PLAXIS 2D Dynamics and x-, y-, and z-directions in PLAXIS 3D Dynamics.

PlaxFlow Transient Groundwater Capabilities

Perform time-dependent groundwater analysis and simulate the unsaturated, time-dependent, and anisotropic behavior of soil, as well as simultaneously calculate changes in pore pressures and deformation, by a fully-coupled flow-deformation analysis.

Access predefined properties for unsaturated soil behaviour

Take advantage of various predefined properties to define the unsaturated soil behaviour, according to common soil classification systems such as Hypres, USDA, and Staring. Predefined data sets for the Van Genuchten and Approximate Van Genuchten model are available for all types of soil. For experts on groundwater flow modeling, Van Genuchten model parameters can be entered manually, or user-defined relationships between groundwaterhead, permeability, and saturation can be entered.

Assign time dependent flow boundary conditions

Assign time dependent variation or fluxes to water levels, model boundaries, or soil boundaries to simulate various complex hydrological conditions. The input of the time dependant properties is based on harmonic, linear, or table functions. This allows seasonal variations of river water levels behind embankments and their effect on the overall slope stability to be modelled. Precipitation, wells, and drains can be included in the model, allowing pumping tests or other hydrological applications to be modelled.

Thermal Capabilities

Acquire specialised capabilities to deal with changing soil properties due to temperature change, enabling engineers to anticipate and react to potential stability issues, such as foundation challenges in arctic areas. PLAXIS 2D Ultimate takes account of the effects of heat flow on the hydraulic and the mechanical behavior of soils and structures and can also perform full thermal-hydro-mechanical coupling in conjunction with the PLAXIS 2D PlaxFlow groundwater capabilities. Analyse stress rotation due to thermal loading

Analyze displacements, or the rotation of stress due to temperature changes. Coupling between thermal loading and mechanical process is required when the temperature change in soils results in thermal stresses. Deformation of a navigable lock due to sunlight absorption when the lock is empty is an example of this.

Optimize ground freezing design Whether the ground freezing is artificial to stabilize weak ground or natural you can study the complex interplay between the velocity of groundwater flow, temperature of the freezing pipes, and their effects on the formation of an ice wall through the various boundary conditions.

As a complete 2D geotechnical analysis software package, PLAXIS 2D WorkSuite integrates the powerful and user-friendly finite element and limit equilibrium analysis capabilities of PLAXIS 2D applications for the design and analysis of soil, rock, and associated structures.

PLAXIS 2D WorkSuite comprises PLAXIS 2D Ultimate and PLAXIS 2D LE.