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SI Scope Calculator

Estimate soil-investigation scope: boreholes, depth and total drilling metres.

The SI Scope Calculator returns the recommended number of boreholes (from plot area and an investigation-intensity grid), the borehole depth (from building height and/or foundation width, plus embedment, floored at a 10 m minimum) and the total drilling length.

The result can be carried straight into the SI Cost Estimator to price it. Figures are preliminary and for planning only — not for procurement, tender or construction. Onshore investigations only.

References

EN 1997-2:2007 — Eurocode 7: Geotechnical design — Part 2: Ground investigation and testing, Annex B.3.

BS 5930:2015+A1:2020 — Code of practice for ground investigations.

ASTM D420Standard Guide to Site Characterization for Engineering Design and Construction Purposes.

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No. of Boreholes

Plot area and investigation-grid intensity

Investigation intensity

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Depth of Boreholes

Building loading, basements and embedment



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Enter the plot area and building details — the recommended investigation scope appears here.

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Scope Estimate

Recommended investigation scope

No. Boreholes
m BGL BH Depth
lm Total Drilling

Note · This tool is applicable for onshore investigations only.

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Disclaimer

This tool provides an indicative estimate of the recommended geotechnical investigation scope based on the user inputs and selected methodology. The suggested number of boreholes, investigation depths, testing locations, and associated quantities are estimates only and shall not be used as the sole basis for project design, procurement, tendering, or construction. The final investigation scope shall be reviewed, verified, and determined by a qualified geotechnical engineer considering the project-specific conditions, design requirements, ground conditions, applicable standards, and engineering judgement. Orycta makes no representation or warranty regarding the accuracy, completeness, or suitability of the results generated by this tool and accepts no liability arising from its use.