Geotechnical Investigation EN ISO 22475

This object type supports standardized documentation of geological and geotechnical investigations in accordance with EN ISO 22475 and related standards. It is designed for recording boreholes, groundwater monitoring points, and wells, including associated field and laboratory data.

Overview

The object type “Geotechnical Investigation EN ISO 22475 (2018)” is a further development of the earlier 2007 version. It enables comprehensive acquisition, evaluation, and graphical representation of geotechnical data using standardized input forms, dictionaries, layouts, and database structures.

For current projects, the 2018 object type [ENISO002] is recommended and is provided to all GeoDin users via the GeoDin server.

Standards and Normative References

The object type is based on the following standards:

• DIN / ÖNORM EN ISO 22475 (2007/2006)

• DIN / ÖNORM / SN EN ISO 14688‑1 / 14688‑2

• DIN / ÖNORM / SN EN ISO 14689 (2020)

• DIN 4943 (2013)

These standards define the structure, terminology, symbols, and layouts used for soil and rock description, borehole logging, and well documentation.

Supported Data and Checklist

The object type includes the following main data categories:

General Data

• Project and location data

• Map preview

• Extended general data according to DIN 4943

Layer Data

• Stratigraphy

• Discontinuities

• Degree of decomposition

• Consistency

• Degree of weathering

• Rock strength

• Rock quality

• Cored section boundaries

Sample Data

• Field and laboratory samples

• Documentation of test results

Well and Groundwater Data

• Well design

• Groundwater monitoring points

• Filter and screen information

• Backfill and casing details

Data Sequences

• In-situ tests such as:

  • CPT

  • SPT

• Other measurement sequences

Additional Data

• Official notifications

• Bilingual geological standard (German / English)

• Customizable dictionaries and input forms

Key Features

Detailed Soil and Rock Description

Soil and rock characteristics can be recorded in detail using dedicated input forms, including:

• Discontinuities

• Degree of decomposition

• Consistency

• Degree of weathering

• Rock strength

• Rock quality

• Cored section boundaries

These forms are available in German/Austrian and English.

Advanced Layer Data Handling

Layer data include selection dialogs that provide access to additional input forms for detailed geological descriptions, ensuring consistent and standardized data entry.

Standard-Compliant Layouts

Predesigned layouts allow output in accordance with:

• DIN 4943

• EN ISO 22475

• EN ISO 14688

• EN ISO 14689

Geological fill patterns comply with:

• DIN 4023

• ÖNORM EN ISO 14688/14689

• BS 5930‑1990

Visualization Outputs

Available layouts include:

• Trial pit visualization (ÖNORM)

• Borehole logs according to EN ISO 14688/14689

• Drilling profiles and well design according to DIN 4943

Technical Notes and Compatibility

• The object type uses the new descriptor (E2) due to technical adjustments.

• Full functionality is available from GeoDin version 9 onwards.

• The object type is not downward compatible with earlier GeoDin versions.

Application Areas

The object type is commonly used in:

• Geology

• Environmental geology

• Geotechnics

• Civil engineering

• Documentation and graphical representation of:

  • Boreholes

  • Wells

  • Groundwater monitoring points

Field and laboratory investigation results used to assess soil suitability for construction purposes can be documented using dedicated data types.

Database Tables (Selection)

The following database tables are used by the object type:

• GEODIN_LOC_E2GENER – General data

• GEODIN_LOC_E2LAYER – Layer data

• GEODIN_LOC_E2STRATI – Stratigraphy

• GEODIN_LOC_E2TF – Discontinuities

• GEODIN_LOC_E2TFNAB – Discontinuities (standard distances)

• GEODIN_LOC_E2RMZ – Degree of decomposition

• GEODIN_LOC_E2RMLK – Consistency

• GEODIN_LOC_E2RMV – Degree of weathering

• GEODIN_LOC_E2RMGF – Rock strength

• GEODIN_LOC_E2RMFQ – Rock quality

• GEODIN_LOC_E2RMKM – Cored section boundaries

• GEODIN_LOC_E2SAMPLE – Sample data

• GEODIN_LOC_E2GWATER – Groundwater data

• GEODIN_LOC_E2BESCH – Official notifications

• GEODIN_LOC_E2WDGEN – Well design: general data

• GEODIN_LOC_E2WDHOLE – Well design: borehole

• GEODIN_LOC_E2WDCAS – Well design: casing/screens

• GEODIN_LOC_E2WDFILD – Filter/screen information

• GEODIN_LOC_E2WDBCKF – Well design: backfill

• GEODIN_LOC_E2WDFLUI – Well design: flushing

• GEODIN_LOC_E2WDSPCL – Well design: special features

• GEODIN_LOC_E2DSREG – Register of data sequences