What it tells the engineer
Quick field tests measure ground properties where they are: Mackintosh/JKR probes for soil resistance, field vane for the shear strength of soft clay, permeability tests for drainage, and field density for compacted fill.
In-situ ground testing
Field tests to investigate ground conditions at selected locations. The method depends on the soil, access and investigation objective.
When it is used
Preliminary investigation, shallow foundations, soft-clay sites, earthworks quality checks, and drainage or infiltration design.
How a job runs
- 1
Brief
Your site, the structure and what the design needs to know.
- 2
Plan
Test locations, methods and the reporting you need.
- 3
Fieldwork
Testing, drilling and sampling on site by our field team.
- 4
Report
Logs, plots and test results for your engineer.
Typical outputs
- Probe resistance with depth
- Vane shear strength profiles
- Permeability results
- Field density and moisture results
Questions
Is a Mackintosh probe enough for my foundation?
It is a useful first check for light structures. For larger works it is used alongside boreholes or CPT.
Tests in this family
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Dynamic Cone Penetration (DCP) Test
Dynamic cone penetration testing records penetration per hammer blow. Results support assessment of pavement …
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Mackintosh Probe Test
Mackintosh probing records penetration resistance with depth. Results support preliminary assessment of groun…
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Shear Vane Test
Field vane testing measures the torque needed to shear cohesive soil and estimate undrained shear strength. S…
