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Tools for soil liquefaction analysis

Project description

Testing Status PyPi version License DOI


Python tools for solving problems related to soil liquefaction


  • Triggering:
    • Calculate liquefaction factor of safety according to Boulanger and Idriss (2014)
    • Calculate expected lateral strain and volumetric strain according to Zhang et al (2002)
  • Settlement:
    • Calculate foundation settlement on liquefiable deposit according to Karamitros et al. (2013) or Bray et al. (2018)
  • Element tests:
    • Calculate the dissipated energy required to liquefy
  • Site response analysis
    • Perform equivalent linear site response analysis using the pysra package


pip install liquepy


How do I get set up?

  1. Run pip install -r requirements.txt

Code suggestions

  • Implementations of published liquefaction methods should be written as calc_<property>_<first_author>[_et_al]_<date>() for two authors include both.
  • Plotting and visualisation should be not included in computation objects. Instead plotting functions or objects should receive computation objects as inputs.


  • Follow pep8 formatting standard (except for line character limit not strictly observed)
  • Docstrings written in numpy format
  • Tabulated data stored as comma separated or semi-colon separated files (not xlsx or xls)


Tests are run with pytest

  • Locally run: pytest on the command line.
  • Tests are run on every push using travis, see the .travis.yml file

To test the docs:

  1. Install the check docs package: Run pip install collective.checkdocs
  2. Run the check docs package and fix the errors: Run python checkdocs


To deploy the package to you need to:

  1. Push to the pypi branch. This executes the tests on
  2. Create a git tag and push to github, run: or manually:
git tag 0.5.2 -m "version 0.5.2"
git push --tags origin pypi

Project details

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