Foundations & Piles
Liquefaction Potential Analyzer
Calculate Factor of Safety (FS) against liquefaction using Idriss & Boulanger (2008) SPT methodology with magnitude and overburden corrections.
Liquefaction Potential Analyzer
Calculate Factor of Safety (FS) against liquefaction using Idriss & Boulanger (2008) SPT methodology with magnitude and overburden corrections.
Inputs
1. Seismic Parameters
2. Site & Soil Conditions
3. SPT Field Data
Results
Enter seismic, soil, and SPT parameters to compute liquefaction potential.
Theory and formulae
Theory & Governing Equations
About this calculator
This free liquefaction potential calculator runs entirely in your browser: what you enter is never uploaded. Switch between metric and imperial units at any time. Use the calculation steps and the theory section to check the working, and print a calculation sheet with the inputs, results and formulae for your records.
Methods and references: Idriss & Boulanger (2008).
Topics: liquefaction, spt, idriss, boulanger, earthquake, seismic, fs, csr, crr.
Engineering notice: Results are for preliminary estimation, screening and education. All inputs and outputs must be independently verified by a qualified professional engineer before use in any design or construction decision. Read the full disclaimer
Disclaimer
This calculation sheet was generated with Geotechnical Toolbox for preliminary estimation, screening, educational and verification purposes only. Geotechnical engineering involves site-specific ground conditions and uncertainty. All inputs, methods, results and figures must be independently checked and approved by a qualified Professional Engineer (P.Eng. / PE) before being relied on for design, construction or any safety-critical decision. Results reflect the values entered at the time of printing. The author and site accept no liability for errors, omissions or damages arising from their use.
Open this calculator online: geotechnica.ca/tools/liquefaction-potential
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