Key Features


GTS NX is equipped with specialized and unique features that have been developed to expedite the modeling and analysis processes. With these features you will be able to generate high quality, optimal designs with greater efficiency than you ever imagined was possible.




Functions for modeling complex 3D geometry and applications


GTS NX has various advanced modeling functions that will enable you to model even the most complex projects with unmatched levels of ease and precision.


Smart Surface


GTS NX enables you to directly import any CAD drawing into GTS NX. You can also easily make revisions to your drawing using the integrated CAD based commands. These features ensure that your use of AutoCAD will enhance your ability to create accurate and detailed 3D models.

Trim and Divide

These functions enable you to easily and intuitively make modifications to your 3D model and are especially useful for modeling detailed soil layers and surfaces.


The Extrude function enables you to seamlessly convert 2D geometry into 3D geometry. With this function you can import 2D drawings of your project site and convert it into a detailed 3D model with a few simple steps.



The Sweep function enables you to extrude along curves. This function is especially useful for modeling complex 3D tunnel geometry as well as detailed geometry for embankments and excavations. Geometry that would have required a significant amount of time to model in other programs will only take you a few moments to model with this highly specialized feature.

Unconventional Tunnel Intersections

High-end tunneling projects typically require the design and modeling of multiple tunnels with unconventional connections. GTS NX includes modeling tools that facilitate the modeling of these connections. T-type/Y-type interconnections, curved tunnels, shaft-lateral-main tunnel connections, tunnel entrances, and even subway stations can be easily modeled and fully rendered in detail.


Equipped for all types of Geotechnical Analysis


Foundation Analysis


GTS NX handles the full range of foundation analyses. You will be able to perform thorough analyses of spread footings, deep foundations, pile foundations, and shaft foundations. The advanced post- processor will generate results that you can then use to determine horizontal pile foundation movement, bearing capacity, and differential settlements. The program also has the unique and advantageous ability to simulate group pile behavior. This ability will save significant amounts of time when determining the ultimate bearing capacity of group pile configurations.

GTS NX has foundation analysis capabilities that also extend to the investigation of the effects of new foundations on existing structures. With GTS NX you will be fully able to study the settlement and decrease of stability of adjacent structures due to the additional loading caused by your project footing.

Staged Excavation


Deep excavation projects often require an analysis that accounts for the changes of the project site over each stage of the excavation. GTS NX enables you to analyze each stage of the excavation sequence along with the permanent and temporary structures that are to be constructed during each respective phase. A key advantage of the program is its ability to calculate highly accurate bending moments and deflections of retaining elements. You can use these high quality results to optimize your design while fully accounting for the maximum allowable bending moments and deflections of your retaining walls.

GTS NX is equipped with advanced modeling and post processing features that have been designed to simplify and streamline the once time consuming and complex process of performing finite element analysis for excavation. Thus you can obtain in depth results with a minimal investment of time and effort.

Seepage Analysis


GTS NX has been used extensively by engineers to analyze the transient flow of homogenous and zoned embankments. One of the many key advantages that GTS NX has to offer for these applications is that it enables you to easily model very complex 2D or 3D geometry and layers of stratification. Another unique and important advantage made possible through GTS NX is enables you to accurately model zones in which seepage gradients or velocities are high by varying the size of the elements. Complex seepage project applications such as these can only be modeled with finite element software. With GTS NX you will be able to perform any type of complex seepage analysis investigation. These investigations include the study of pore pressure changes, the effects of precipitation and evaporation, and relief wall spacing.

Slope Analysis


3D finite element analysis of slopes provides highly detailed results that are far more accurate than results obtained through conventional 2D limit equilibrium method analysis. However, the complexity and time-consuming nature of 3D finite element analysis has caused many engineers to prefer the limit equilibrium method. GTS NX has a user-friendly modeling interface that has been specifically designed to overcome these limitations. These functions will enable you to use the finite element method to analyze slopes with unmatched levels of ease, efficiency, and precision.

GTS NX calculates all results that are essential to slope analysis: results for shear forces, deformations and factor of safety are all generated in detailed spreadsheet and model formats. You will also have the ability to analyze high-end slope projects that involve soil-structure interaction, analysis of slope stability during construction, and staged construction for embankments built on soft clay foundations.

Slope stability projects in high seismic regions need dynamic analysis to be performed in order to accurately calculate the factor of safety. Finite element analysis for slope stability (also known as the Strength Reduction Method) is commonly used for these types of projects since it can effectively take dynamic loading and the resultant soil shear strain and deformations into account. GTS NX is capable of performing a fully coupled nonlinear time history and SRM analysis. This eliminates the need to utilize multiple software platforms and enables you conveniently perform both analyses in a single model file.

Dynamic Analysis


GTS NX will enable you to fully benefit from the use of 2D and 3D models for seismic analysis. One of the key advantages of using 2D and 3D models for seismic analysis is the ability to consider project complexities such as soil anisotropy, irregular soil stratigraphy, surface waves, irregular topography, and soil-structure interaction. Another key advantage of using 2D and 3D models is that seismically induced permanent displacements can be estimated.

GTS NX is capable of performing response spectrum analysis for conventional projects as well as time history analysis for high-end seismic design calculations. For response spectrum analysis GTS NX uses the natural frequency to calculate peak values of seismically induced displacements, ground velocities and ground accelerations.

For time history analysis you have the option of using the modal superposition method to estimate the displacement of structures from a linear superposition of modal displacements. You can also use the direct integration method to integrate the dynamic equilibrium equation over the given time steps. Lateral soil springs can be modeled for deep foundation seismic analysis. These soil springs make it possible to account for non-linear behavior of the soil during seismic loading.

GTS NX is fully capable of performing nonlinear dynamic analysis, which utilizes detailed ground motion records along with structural models to calculate highly accurate results. Dynamic loads for blasting, trains and earthquakes can be efficiently created with the generator functions. An extensive database of the most widely used seismic time history records is available as well. These options effectively streamline the process so that you can obtain the desired results with a much lower investment of time and effort than is typically associated with nonlinear dynamic



GTS NX is fully equipped to model and analyze each phase of tunnel construction, including a simulation of the excavation itself and the installation of supports. Shield TBM analysis can be performed to obtain maximum axial forces, sheer forces, bending moments and radial displacements of the tunnel for each phase of the construction sequence.

GTS NX also enables you perform analyses of various types of tunnel linings such as unsupported rock, shotcrete, and unreinforced concrete systems. You can also take multiple load cases into account such as vertical stresses in soil and horizontal pressures on the tunnel surface. Afterwards you can run the analysis to calculate the resulting forces and moments for each element of the lining.


Powerful Post-Processing Functions


Graphics Based Output


GTS NX features a powerful post-processing engine that is capable of converting complex models into simple cross-sections, clipping planes, and contour line representations. You can choose from a wide array of display options that are designed to meet a variety of project needs and preferences.

The post processing engine can automatically generate contour display models for key results such as displacements, deformations, skin friction, bending moments and axial loads. These models provide excellent graphical displays of your results that will enable you to quickly and efficiently identify the critical points of the project that need to be included in the final report.

Extraction and Visualization Results


A typical difficulty of finite element programs is filtering through the substantial amount of analysis output for the results that you will need for your final report. GTS NX overcomes this difficulty through intuitive filtering functions that enables you to automatically sift through large quantities of output and extract the results you need. The results can be filtered through the following three functions:

Extract Result

This function enables you to extract the results into numerical spreadsheets and corresponding graphs. The spreadsheets provide a report of the results that can be modified to various levels of detail depending on your project needs. The results of these spreadsheets can be automatically exported to graphs that provide a more convenient and aesthetic display of the results. The function is particularly useful for identifying the minimum and maximum values that are critical for meeting design codes.


Probe Results


This function has an option that automatically tags the minimum and maximum points of value on the project contour model. This is useful for situations in which only the minimum and maximum values are required for the final report. It is also useful for situations in which the exact coordinates for these values needs to be displayed in context with the overall model. Previously this required having to painstakingly search through hundreds of results and coordinates and then manually creating the tag yourself. Now it can be done in a few fast and simple steps.

On-Curve Diagram


This function automatically plots the results on a contour of your choosing. This option is useful for reports that benefit from having the results plotted directly on the 3D model. This makes it much easier to view and study the results along a particular plane or area of interest. For example you can use this function to view the deformations, axial strains, stresses, or bending moments along a plane that is of critical interest to your project. The post processor features an advanced input menu that enables you to create these diagrams with speed, ease, and accuracy.


Add to Powerful Post-Processing Functions


The reports of finite element analyses can take just as long to create as the finite element models themselves. This is due to the wide range of results that are generated from finite element analysis that consist of a wide array of contour models, spreadsheets, and graphs. GTS NX features a groundbreaking new function that enables you to generate reports in PDF format directly from the post processing results menu of the program. This feature eliminates the need to tediously use print screen or copy and paste functions to generate reports on Word documents. The result extraction functions enables you to seamlessly select the 3D contour model of interest, alter the viewing size and angle, and add notes, dimensions, and corresponding graphs and spreadsheets as needed. These advanced functions make it possible for you to create beautifully detailed and comprehensive reports in a fraction of the time and effort that was required through previous methods.