Mechanically-stabilized earth (MSE) walls are inherently complex shapes; smoothly curving in all 3 dimensions while the structure changes shape. Modeling complex geometry for quantity takeoff, automated machine guidance (AMG), and coordination can be accomplished using AutoCAD® Civil 3D® software with or without the use of Subassembly Composer (SAC). In this advanced class, we create an MSE wall that is based on construction documents. We streamline stepped profile creation, removing a data input bottleneck. We also demonstrate 2 methods for creating MSE wall assemblies and the advantages and disadvantages of using SAC. Moving onto creating the corridor itself, we discuss issues of representing profile steps and how Civil 3D can properly represent necessary detail for MSE walls. After creating the model, we briefly show quantification, visualization, and coordination. All of these steps lead up to exporting the model for AMG to enhance field productivity. At the end of this class a user who knows Civil 3D will be able to easily create a 3D MSE wall. Although this class focuses specifically on MSE walls, these same techniques can be used for any linear structure.
- Use Microsoft® Excel® and macros to streamline data-heavy profile creation
- Create an MSE wall assembly using standard Civil 3D subassemblies
- Use a custom subassembly created in Subassembly Composer to create a 3D solid MSE wall
- Visualize, coordinate, quantify, and export survey surfaces and line work for an MSE wall
Eric Cylwik is the modeling engineer for Sundt Construction's Transportation and Infrastructure division. Before working exclusively for the Heavy Civil division, Cylwik focused on adapting Building Information Modeling (BIM) models from the office to the field for Sundt's Concrete Group. He now focuses on creating virtual construction models that highlight technology’s capability to enhance the way construction is performed in the field for horizontal construction. Focusing on infrastructure, Cylwik has been able to capitalize on parametric modeling to create construction-quality bridge, road, and trench models that are used for survey surfaces, machine control, quantity takeoffs, utility coordination, constructability reviews, and visualizations. Cylwik has helped Sundt procure over $1 billion of alternative delivery method projects. He graduated from Arizona State University with a degree in design studies with an emphasis in digital visualization. He is also a certified professional in several vertical and horizontal BIM and virtual design and construction software programs.