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Quick start — first project in 5 minutes

Objective: load a sample file, read the stratigraphy and main correlations, export the report.

1. Open the app and create a new project

Go to nx.geostru.ai/dynprobe. Click New file from the File menu.
Give the project a name (e.g. "Rome Street Site") and click Create.

Alternatively, use a sample file from the home screen — you will immediately see all sections already populated.

2. Add a test

In the Dashboard click + Continuous test (or + Borehole test for SPT). Enter:

  • Label: identification code for the test (e.g. DP-1)
  • Instrument: select from the catalogue (DPM, DPSH, DPH, DPL…). The instrument defines the hammer mass, drop height and advancement step — all energy parameters are already tabulated internally.
  • Coordinates: enter lat/lon to position the test on the map (optional but useful for site plan export).

3. Enter the readings

Go to the Readings tab. You have three modes:

  • Manual: type the blow count row by row.
  • Import CSV: paste or load a file from a datalogger — the system automatically recognises depth and blow count.
  • Import .dypx: load a file exported directly from the GeoStru Dynamic Probing desktop.

The N/depth chart updates in real time.

4. Interpret the stratigraphy

Go to the Interpreted stratigraphy tab. The app proposes a first layer over the entire depth.

  • Click + Add layer to subdivide the profile.
  • For each layer set the lower depth, the soil type (cohesive / non-cohesive / mixed) and the unit weight γ.
  • The N_SPT aggregation method per layer is chosen in the column header (default: mean). See Stratigraphy → for the 7 available methods.

Colours and badges

The Σ layers / test badge at the bottom shows whether the sum of layer depths matches the test depth (green tick = consistent, yellow triangle = discrepancy to check).

5. Read the correlations

Geotechnical correlations tab: for each layer a table appears with the estimated parameters (Cu, φ, Mo, Ey, Vs, γ, Dr …) computed from reference formulas in geotechnical literature. See Correlations →.

Note

Correlations are empirical estimates. Use them as a starting point — always supplement with laboratory data when available.

6. Check the subsoil category

Subsoil cat. tab: the app computes the equivalent velocity V_s,30 and automatically assigns the NTC 2018 category. See Category →.

7. Export the report

File → Save to download the .dprobe file. Export → Word Report for the complete report.

In 5 minutes you have:

  • ✅ a test with readings
  • ✅ an interpreted stratigraphy
  • ✅ geotechnical parameters for each layer
  • ✅ the subsoil category
  • ✅ the project file downloaded