3D Excavation Support Analysis in DeepEX
- Oct 11, 2023
- 3 min read
Analyze Walers, Struts, and Tieback Systems in Three Dimensions
Most excavation projects begin with a series of representative 2D design sections.
However, as projects become larger and more complex, engineers often face challenges that cannot be fully captured by individual 2D analyses.
Excavation support systems may include:
Irregular excavation geometries
Multiple support levels
Complex strut layouts
Large waler systems
Variable wall types
Non-uniform loading conditions
Adjacent structures and utilities
Understanding how these support systems behave as a complete structure is often critical for safe and economical design.
DeepEX provides integrated 3D excavation support analysis tools that allow engineers to evaluate the structural behavior of walers, struts, and tiebacks across the entire excavation.

The Challenge: Moving Beyond Individual 2D Sections
While 2D analyses remain the foundation of excavation design, support systems rarely behave independently.
In large excavations, engineers frequently need answers to questions such as:
How are loads distributed along a continuous waler?
What forces develop in each strut?
Which support members experience the highest demands?
How do support reactions vary between construction stages?
What happens at corners and transitions between wall sections?
Answering these questions using only separate 2D sections can be difficult and time-consuming.
DeepEX bridges this gap by combining proven 2D excavation analyses with a three-dimensional structural representation of the support system.
Generate 3D Support Systems Efficiently
Creating large support models manually can require significant engineering effort.
DeepEX streamlines the process by using information from existing excavation sections to generate support layouts and structural loading conditions.
This allows engineers to rapidly develop three-dimensional support models without recreating data already available within the project.
Analyze Walers, Struts, and Tiebacks
Once the support system is generated, DeepEX performs structural analysis and calculates:
Waler forces
Strut forces
Tieback reactions
Axial loads
Shear forces
Bending moments
Structural deflections
The software evaluates how support loads are distributed throughout the excavation and identifies critical members requiring further review.
Evaluate Construction Stage Behavior
Excavation support systems evolve throughout construction.
Loads, reactions, and structural demands change as excavation depths increase and additional supports are installed.
DeepEX allows engineers to review support performance at each construction stage, helping them understand how the system behaves throughout the excavation sequence.
This can be particularly valuable for large urban excavations where construction staging plays a significant role in overall performance.
Visualize Critical Structural Responses
DeepEX provides graphical results that help engineers quickly identify critical areas within the support system.
Available outputs include:
Waler moment diagrams
Waler shear diagrams
Waler deflection diagrams
Strut axial forces
Tieback loads
Support reactions
Construction-stage results
These visualizations help simplify design reviews and facilitate communication with project stakeholders.
Optimize Support Layouts and Project Costs
The ability to evaluate the entire support system allows engineers to compare alternative layouts and optimize designs before construction begins.
DeepEX helps project teams:
✔ Reduce unnecessary support elements
✔ Optimize waler configurations
✔ Evaluate alternative support spacing
✔ Improve constructability
✔ Better understand load paths
✔ Reduce project risk Applications
3D excavation support analysis is particularly valuable for:
Large urban excavations
Multi-level basement projects
Transportation infrastructure
Station excavations
Complex support systems
Anchored retaining walls
Braced excavations
Projects with multiple excavation stages
Whether designing a rectangular basement excavation or a complex infrastructure project with multiple support levels, DeepEX provides engineers with a practical way to evaluate excavation support systems in three dimensions.
Availability
3D Excavation Support Analysis is included in the DeepEX 3D package.
Let us show you how to reduce your design time by up to 90%!

