Features

Site investigation

The project container holds in-situ tests, laboratory specimens, and field strata.

• In-situ tests: CPT, DMT, borehole / SPT, IST, UDT.
• Interpretation of CPT (Robertson), DMT (Marchetti), and SPT.
• Liquefaction triggering:
  • CPT: Robertson, Idriss 2008, Boulanger 2014, Saye 2021.
  • DMT: Marchetti.
  • SPT: Cetin 2004, Idriss 2008, Boulanger 2014, Cetin 2018.
• Shear-induced building settlement from liquefaction (Bray 2017).
• Shallow-foundation settlements and capacity, and pile capacity, from in-situ data.
• Laboratory on borehole specimens: water content, Atterberg limits, sieve and hydrometer, index and strength tests, sample classification.
• Field strata.
• Depth aggregation and parametric analysis. A filled site CPT profile is in the gallery.
• Visualization: geotechnical plots and plot sets, scalar summary bars (LPI and related sums), published reference-figure overlays (CPT/DMT soil-behavior charts, liquefaction damage, plasticity), Plotly maps, multi-page HTML reports. Interpreted profiles, CPT and DMT plot-set pages, a filled Robertson soil-behavior-type chart, liquefaction summary bars, and liquefaction depth plots are in the gallery.
• Graphical logs: borehole, CPT, test-pit. Filled logs are in the gallery.
• IO and export: Excel, CPeT-IT Excel, AGS (including Next-Generation Liquefaction), KML maps, DXF maps, and DXF cross-sections. A filled cross-section is in the gallery.
• Example datasets and generic file helpers.

Calculations

• Correlations: CPT, DMT, SPT, footing, pile, liquefaction, lab, USCS / AASHTO / USDA, site class, design spectra, SSI.
• Pipelines covering those same domains.
• Shared parameters.
• Function sequence catalog: every named recipe.

Foundations and SSI

• Shallow foundation: Terzaghi, Vesic, Meyerhof layered cases.
• Average parameters.
• Pile capacity (USACE).
• Pile settlement (Poulos).
• Pile groups.
• Soil-structure interaction: effects, footing and pile stiffness, group and node data.

Seismic and classification

• Seismic site class.
• Averaging (Ns, Vs, Su).
• From averages.
• Design spectra.
• Soil classification: USCS, AASHTO, and USDA.
• Interpolation for resampling profiles.

Graphics and reports

• Plots and geotechnical plots (Plotly or matplotlib).
• HTML reports: logs, in-situ, laboratory, NGA.
• Published charts.
• Graphics and tiles for rendering support.

Catalogs and project data

Named parameters, references, datasets, and graphics are in the catalog. Filled logs, plots, and cross-sections are in the gallery.