GTK-Field

GTK-Field is the professional field documentation app for geotechnical engineers in Austria, Germany and Switzerland. All investigations are documented according to European standards - directly on site, paperless and efficient. INCLUDED MODULES TEST PIT (Schuerfgrube) Soil layer classification according to EN 14688-1/2 with 30+ soil types, BGR colours and hatching patterns. Dual-chip system for admixtures with intensity and grain fraction. True-to-scale layer profile in PDF. GENERAL SITE OBSERVATION Field observation with GPS positioning, photo documentation and standardised PDF report. DYNAMIC PROBING (Rammsondierung) Dynamic probing according to EN ISO 22476-2. Supports DPL, DPM, DPH and DPSH. N10 values are displayed live with colour coding (green / yellow / red) and exported as a complete PDF report with resistance diagram. INFILTRATION TEST (Versickerungsversuch) Determine kf-values directly in the field - standpipe test according to OENORM B 4422-2 (falling head, constant head, base infiltration) or pit infiltration test with simple and extended kf-calculation. Automatic evaluation using the Hvorslev method, drawdown curve and soil classification according to DIN 18130-1. SAMPLE COLLECTION Document soil samples by category A, B and C. Container management, laboratory status tracking (Pending - Submitted - Evaluated) and PDF report. PDF EXPORT All modules export standardised PDF reports including company logo, GPS coordinates, date, inspector and optional photo appendix - instantly shareable via email or AirDrop. KEY FEATURES - 100% offline - no internet connection required - Automatic GPS positioning via iPhone - Camera integration for photo documentation - All data stored locally on device - Cloud synchronisation via Supabase (optional) Developed by GTK-Geotechnik Kroell ZT GmbH, Schmirn/Austria - by geotechnical engineers, for geotechnical engineers. Questions or feedback: office@geotechnik-kroell.com