Geotechnical Knowledge
What Is a Geological Cross-Section and Why Is It Prepared?
A practical introduction to the purpose, content and engineering use of geological cross-sections.
JeoKesitGeology and Geotechnical Knowledge Centre
Explore detailed and referenced articles covering the workflow from borehole data to scaled geological sections.
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153 articles
Geotechnical Knowledge
How to Read a Borehole Log
How to interpret borehole identification, elevation, depth, layer boundaries and groundwater information.
Geotechnical Knowledge
How to Correlate Layers Between Boreholes
A defensible approach to correlating strata across separate investigation points.
Geotechnical Knowledge
Creating Topography from Borehole Collar Elevations
How collar elevations can be used as control points for a geological section profile.
Geotechnical Knowledge
How to Select a Geological Cross-Section Alignment
Selecting a section line that answers the engineering question and represents the ground model.
Geotechnical Knowledge
Horizontal and Vertical Scale in Geological Sections
Choosing scales, reporting vertical exaggeration and preserving measurable geometry.
Geotechnical Knowledge
Lithology Symbols and Colour Selection
Using colour, patterns and legends to communicate soil and rock units clearly.
Geotechnical Knowledge
Clay, Sand, Clayey Sand and Sandy Clay
How common soil names differ in composition, classification and engineering behaviour.
Geotechnical Knowledge
How to Show Groundwater Levels on a Cross-Section
Converting water depths to elevations and presenting time-dependent observations responsibly.
Geotechnical Knowledge
Adding a Building Footprint to a Geological Section
Positioning a building footprint using measured start and end distances.
Geotechnical Knowledge
What Is Foundation Formation Level?
Understanding the base-of-foundation elevation and its role in a geological section.
Geotechnical Knowledge
How Is Borehole Depth Determined?
Planning investigation depth in relation to the structure, ground conditions and engineering objectives.