Thank you for downloading the Geotechnical Modeler Extension 2025 for Autodesk^® Civil 3D^®.

This document contains the latest information regarding the installation and use of this extension. It is strongly recommended that you read this entire document before you apply this extension to your product.

Contents

• Who Should Install This Extension?
• Key Features of this Extension
• General Installation Information
• Installation Instructions
  • Apply This Extension to a Stand-Alone Installation
  • Apply This Extension to a Network Administrative Image
  • Uninstall This Extension

You can apply this extension to the following Autodesk products running on all supported operating systems and languages. Be sure to install the correct extension for your software.

• Autodesk^® Civil 3D^® 2025

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The Geotechnical Modeler is a Civil 3D extension which enables users to visualize and analyze their geotechnical data directly within the Civil 3D environment. The Geotechnical Modeler provides tools to easily generate stratum surfaces, create subsurface visualizations of geotechnical data in profile views, and transpose profile information into a three-dimensional view. The workflows should be familiar to all users of Civil 3D software as the tool utilizes a variety of Civil 3D objects and styles. The flexibility of the tool empowers users to create and manage standard Civil 3D object types and styles including: COGO points, TINNs, Alignments, Profiles, and Profile Views.

The Geotechnical Modeler provides users with two options for connecting subsurface data to their Civil 3D projects: through the industry specific AGS file format option or using simple CSV files.

Key Features of this Extension

• Import borehole data from industry-standard file formats
• Manage subsurface information in SQL database
• Create surfaces from borehole data
• Generate customized subsurface profiles using Civil 3D alignments
• Visualize boreholes in 2D plan and 3D stick logs view
• Export geotechnical data in a 3D format for conceptual design and visualization applications
  

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As you prepare to install this extension, keep the following in mind:

Back Up Custom Files

It is recommended that you back up all custom CUIX, MNR, and MNL files before you apply this extension.

Administrative Privileges

During installation or uninstallation, you may be prompted for the original installation media or a network image. In order to apply this extension, you must have privileges to install and uninstall products.

Close the Application

It is required that you close Autodesk^® Civil 3D^® 2025 before proceeding with the installation of this extension.

Reboot

After you install, it is recommended to reboot your system even if not prompted.

About Your Product

After you install, product information is displayed in the About dialog box.

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• Apply This Extension to a Stand-Alone Installation
• Apply This Extension Through a Local Network
• Uninstall This Extension

Follow these instructions to install this extension on a single computer.

1. Download the extension and save it to any folder.
2. Close all running Autodesk applications.
3. Find the folder where you saved the extension and double-click the executable (.exe) file.

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Follow these instructions to install this extension on multiple computers using your local network.

1. Download this extension and save it to any shared folder on your local network.
2. Close all running Autodesk applications.
3. Find the shared folder where you saved the extension, and double-click the executable (.exe) file.

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This extension can be uninstalled through the Program and Features section of the Microsoft® Windows® Control Panel.

Follow these instructions to uninstall this extension on a single computer.

1. In Windows Control Panel > Program and Features, click on the Autodesk Geotechnical Modeler Extension 2025 and choose the Uninstall option.
2. In the Autodesk Geotechnical Modeler Extension 2025 maintenance dialog box click Yes to confirm that you want to uninstall the extension.

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