PLAXIS 2D offers a complete 2D solution for geometric design and analysis, accurately simulating both non-linear, anisotropic soil/ rock behaviour and interaction with structures. Optional limit equilibrium, dynamic, transient ground water flow and thermal capabilities are available.
PLAXIS 2D is the most widely used 2D simulation solution for deformation and stability analysis of multiple construction stages within geotechnical engineering, considering steady-state groundwater flow for saturated and partially saturated conditions.
From excavations, embankments, and foundations to tunneling, mining, and reservoir geomechanics, engineers rely on PLAXIS 2D as their go-to finite element analysis (FEA) application. Use predefined structural elements and loading types in a CAD-like environment for fast and efficient model creation, allowing you more time to interpret the results.
Create finite element models
Efficiently create models with a logical geotechnical workflow. Define everything from complex soil profiles or geological cross-sections to structural elements, such as piles, anchors, geotextiles, and prescribed loads and displacements. Import geometry from CAD-files. Automatically mesh to create a finite element mesh almost immediately.
Assess stresses and displacements
Accurately model the construction process by activating and deactivating soil clusters and structural elements in each calculation phase with staged construction. 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. Well proven and robust calculation procedures ensure converging calculations and accurate results.
Analyse results with post-processing
Leverage powerful and versatile post-processing and display forces, displacements, stresses, and flow data in contour, vector, and iso-surface plots in various ways. Cross-section capabilities allow for a more detailed analysis of the results. Data can be copied from tables or via Python-based scripting for further processing purposes outside of PLAXIS. The Curve manager enables graph creation, plotting various types of results from available calculation data.
Plaxis 2D Ultimate
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.
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.
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. Optimise 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.
PLAXIS 2D WorkSuite
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.
Bentley Practitioner Licenses
Pair practitioner-named software licenses with expert services to ensure you are getting the most value from your software investment. Benefits include:
Training Tailored to Individual Needs: Choose from customized instruction to on-demand learning and mentoring.
Accelerate Workflows: Boost design, analysis, and modeling skills team-wide while reducing rework.
Affordable Lower Upfront Costs: plus access to expert training ensures a faster return on investment.
We recognise infrastructure professionals are constantly seeking ways to work more efficiently by improving their knowledge and increasing their productivity. A Virtuoso Subscription is included with your software purchase, providing access to:
- Online Live Workshops
- OnDemand Training
- Quick Tutorials
- Expert Advice
- All of Bentley’s Virtual Events
Each license includes a number of Virtuosity Keys or tokens which can be used to help pay for the expert services and training you need to take your project to the next level. The number of Keys received with each subscription varies based on the software purchased. Further Keys can be purchased separately. Keys provide add-on value to subscribers with exclusive rights to the tailored training materials built specifically to help you work more efficiently. Choose from tailor-made training, on-demand learning, and mentoring services to build the support program needed for your engineers and designers. Expert services will help improve your design, analysis, and modeling skills to help increase productivity and reduce time away from project work.
To learn more about how PLAXIS software can help your geotechnical design processes, please enter your details below:
» Brochure: Bentley’s Geotechnical Engineering Applications – Construction eBook
» Brochure: Bentley’s Geotechnical Engineering Applications – Digital Workflows eBook
» Brochure: Bentley’s Geotechnical Engineering Applications – Roads & Highways eBook
» Brochure: PLAXIS 2D Product Matrix
» Brochure: PLAXIS 3D Product Matrix
» Demo Video: PLAXIS 2D Dynamics Modelling of Ground Response
» Demo Video: PLAXIS 2D Modelling of Rock Mass to Circular Excavation
» Demo Video: PLAXIS 2D Modelling of Rockbolts using Tunnel Designer
» Demo Video: PLAXIS 2D Modelling of Seepage around a Pressure Tunnel
» On Demand Webinar: Advance Geotechnical Analysis with PLAXIS
» On Demand Webinar: Conquer Geotechnical Projects with Confidence
» On Demand Webinar: Geotechnical Engineering for Embankments
» On Demand Webinar: What’s New in PLAXIS?