Methodology
Our methodology for standard penetration testing in Medicine Hat follows ASTM D1586, using a 63.5 kg hammer dropped 760 mm to drive a split-barrel sampler. We record blow counts per 150 mm interval to obtain N-values, with corrections for energy efficiency and overburden. Sampling intervals are typically 1.5 m in homogeneous soils, reduced to 1.0 m in variable strata. All equipment is calibrated regularly, and our technicians are certified to Canadian standards. For more details, visit our standard penetration test (spt) page.
Reference Technical Parameters
| Parameter | Reference Value |
|---|---|
| Predominant Soil Type | Glacial till, alluvial sand and gravel, clay till |
| Maximum Seismic Acceleration (PGA) | 0.13g (NBCC 2020, 2% in 50 years) |
| Typical Groundwater Level | 3 to 10 m below ground surface |
| Bedrock Depth | 10 to 30 m (Bearpaw Formation) |
| Typical N60 Range | 8 to 50 blows/300 mm |
Local Considerations — Medicine Hat
Medicine Hat lies within the Alberta Plains, underlain by Cretaceous sedimentary rocks. Glacial till and alluvial deposits dominate the near-surface. The South Saskatchewan River valley creates variable soil conditions; river terraces often contain sand and gravel, while upland areas have clay till. Expansive clays are common, requiring careful moisture content evaluation. Seismic hazard is moderate per NBCC 2020, with PGA 0.13g. Our team routinely performs standard penetration tests across neighborhoods like Crescent Heights and Southridge. For projects requiring continuous profiling, we recommend cone penetration test (cpt). Our hub for regional projects is standard penetration test en Calgary.
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Services in Medicine Hat
Applicable Standards
- ASTM D1586 – Standard Test Method for Standard Penetration Test (SPT)
- NBCC 2020 – National Building Code of Canada
- Alberta Building Code 2019
- CSA A23.3 – Design of Concrete Structures
Frequently Asked Questions
What soil types are typically encountered in Medicine Hat?
Medicine Hat soils are primarily glacial till, alluvial sand and gravel, and clay till. Expansive clays are present in upland areas, while river terraces contain coarser deposits. Our standard penetration tests help characterize these layers for foundation design.
Does Medicine Hat have specific seismic requirements for SPT?
Yes, the NBCC 2020 assigns Medicine Hat a seismic hazard with PGA 0.13g. Standard penetration test N-values are used in liquefaction assessments and site classification per NBCC soil profiles. Our testing follows ASTM D1586 to meet these code requirements.
Are geotechnical investigations mandatory for building permits in Medicine Hat?
For most commercial and multi-residential projects, a geotechnical report is required by the Alberta Building Code. Single-family homes may not always require one, but we recommend SPT for variable soil conditions to avoid future foundation issues.