PLAXIS 2D Parametric Excavation Model Generator - example

In the March 2022 Coffee Corner [More Efficient PLAXIS Usage with Python API including a deep excavation case], an example was given to define a deep excavation model with basic parameters such as excavation width and depth, embedment length of the wall and some basic ground anchor definitions.

This Python script serves as a tutorial to set up such a case and is provided for educational purposes.

Assumptions

  • excavation is symmetric
  • symmetry axis at x=0, model at positive x-side
  • support for retaining wall defined as tie-backs, ground anchors
  • base model contains soil layer definition
  • base model contains relevant material datasets
  • no dewatering

Instructions

  1. Download this script file package and extract it
  2. Define a base mode and save it
  3. Start PLAXIS 2D
  4. Load the editor: PLAXIS 2D menu > Expert > Python > Editor
  5. Load the script file in the editor
  6. Configure remote scripting server (port and password)
  7. Define the excavation definitions
  8. Run the Python script from the Editor

Change log

  • Version 0.2
    • The model should start in structures mode. This is now enforced.
    • Added version info

Version

Tested for PLAXIS 2D CONNECT Edition V22.00 with Python 3.8.x

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