Geotechnical
CSL has recently broadened its service capability to include CPT (Cone Penetration Test) services for Mining, Transportation, Hydropower Dam and Construction applications.
Site Investigations
CSL’s team of geotechnical engineers have the capability to work with industry professionals and clients to complete accurate and valuable geotechnical investigations. CSL has the capability to help with various site investigations for various needs of the client.
CSL has recently acquired new CPT (Cone Penetration Test) equipment from A.P. van den Berg in the Netherlands, state-of-the-art, developed over 50 years, proven best in the world.
This equipment is ideal for MINING – tailings dam and surrounding mine areas, TRANSPORTATION – major highway and roadway, HYROPOWER DAMS – upstream and downstream and Construction –foundations, where soil is exposed to high and varying forces and additional parameters of stability analysis should often be measured. Determination of shear strength is commonly used to define soil Stability.
New CPT (Cone Penetration Test) service

CSL Environmental & Geotechnical (Thunder Bay/Timmins) has recently acquired new CPT (Cone Penetration Test) equipment from A.P. van den Berg in the Netherlands, state-of-the-art, developed over 50 years, proven best in the world. All our CPT equipment came from recommendations we gathered listening to senior engineers on ITRB teams. We can pair this equipment with any drill rig. Offering cost effective, efficient, and accurate results.
This equipment is ideal for mine tailings dam and surrounding areas, transportation major highway development, hydro power dam locations and construction sites, where soil is exposed to high and varying forces and additional parameters of stability analysis should often be measured.
Determination of shear strength is commonly used to define soil stability. A.P. van den Berg’s Ivane is an excellent tool for in-situ measurement as it provides very accurate shear tests. CSL made the decision to acquire the “slow version” Ivane. This electronic vane provides the most accurate results for shear vane testing as the slower rotation creates a more accurate shearing of the cohesive materials. CSL sees the need for this to ensure that the data acquired during investigation is accurate and to provide the best data to Engineers and Regulators.
We are adding the new and latest “Fast Vain” to our suite of CPT equipment which will enhance our, state-of-the-art, service capability.
CSL’s team of engineers have been fully trained and ready to deploy CPT equipment on-site, provide testing services, high quality data acquisition, accurate reliable data interpretation and report results. Services are cost effective and affordable. Ultimately saving project cost, reducing risk of failure, and improving safety.
We would be happy to share our excitement about this new CPT service/capability and start with a TEAM’S call, or a site visit to better understand your challenges and to provide some immediate insight, as well as sample data to demonstrate deliverables.
We have recently completed several projects for EPCM’s, mining companies and construction contractors as noted under our PROJECTS tab.
Factual/Design Reporting
The geotechnical engineers at CSL have the capability to complete various types of factual and design reports to suit a client’s needs. Importantly, CSL’s team of engineers have been fully trained and are ready to deploy CPT equipment on-site, provide testing services, high quality data acquisition, accurate reliable data interpretation and report results. Services are cost effective, efficient, and accurate results. Ultimately saving project cost, reducing risk of failure, and improving safety.
Some examples of these capabilities include:
- Mining – Tailings Dam and surrounding areas.
- Transportation – Major Highway and Roadway
- Hydropower Dam – Upstream and Downstream
- Construction – Foundations
Field Fit Engineering Services
CSL’s team understands that difficulties may arise during construction and that these difficulties may require changes to be made. CSL has the capability to work with clients on field fit engineering to allow projects to be completed on time. CSL is just as comfortable on site working with clients as they are in an office setting. CSL has the ability to come to various job sites and complete inspection services.
Cone Penetration Testing (CPT)
CSL delivers industry-leading Cone Penetration Testing (CPTu) using state-of-the-art electronic piezocone penetrometer equipment from A.P. van den Berg. This advanced in-situ method provides standard CPTu measurements: tip resistance, sleeve friction and dynamic pore water pressure continuously during penetration for comprehensive, high-quality subsurface characterization.
Cone Penetration Testing (CPT)
Key Features:
- High-resolution subsurface profiling at 1-5 cm depth intervals.
- Multiple parameters in a single test: tip resistance (qt), sleeve friction (fs), pore water pressure (u), inclination.
- 10, 15 cm2 cones sizes (cross-sectional area)
- Pre-project calibration as required
- Vacuum-saturated cones in silicone oil chamber for precise and accurate pore pressure response
- Precise 2 cm/s push rate controlled via depth encoder with wire draw mechanism
Advantages:
- Direct, cost-effective determination of dynamic soil properties
- Continuous soil profile
- Highly accurate and repeatable
- Pore water pressure measurement and groundwater evaluation
- Direct design applications
Applications:
- Deep and shallow foundation design
- Slope stability analyses
- Mine tailings
- Liquefaction evaluation (static and cyclic)
Figures and Data:
Seismic Cone Penetration Testing (SCPTu)
CSL offers single and dual seismic modules for the collection of seismic wave data and calculation of shear (Vs) wave and compressional (Vp) wave velocities during the cone penetration test.
A normally loaded beam is struck horizontally on each side to generate polarized shear waves at regular depth intervals. A vertical impact on the beam is conducted to generate compression waves.
Seismic Cone Penetration Testing (SCPTu)
Key Features:
- Triaxial seismic module: To receive left and right shear waves and compression waves.
- Pseudo-interval and true-interval shear wave velocity configurations.
- Combined with 5, 10 and 15 cm2 Icones.
Advantages:
- Efficient, accurate and cost-effective method to measure Vs and Vp in soils.
- Enhanced assessment of soil stiffness, liquefaction potential, seismic site response, and foundation design
- Both Vs and Vp can be collected in a single SCPTu sounding.
- Stacking waves can be done to ensure repeatability and accuracy.
Application:
- Liquefaction evaluation and analysis (static and cyclic)
- Shallow foundation design
- Settlement analysis
- Soil stiffness assessment and unusual soil identification (cementation)
- Detection of unsaturated zones insoil and tailings
Figures and Data:
Electronic Vane Shear Testing
CSL offers high-precision Electronic Vane Shear Testing using the advanced A.P. van den Berg IVane system. This downhole electronic method provides accurate in-situ undrained shear strength measurements, eliminating rod torque effects for exceptional accuracy. CSL maintains two types of electronic vanes:
- Slow speed vane: Minimum rotation speed during shearing: 0.1°/s and maximum rotation speed during remoulding: 6 °/s and
- High Speed Vane (Fast Vane): Minimum rotation speed during shearing: 1°/s and maximum rotation speed during remoulding: 60 °/s
Electronic Vane Shear Testing
CSL provides high-precision electronic vane shear testing in terms of data quality by obtaining measurements directly at the source.
Key Features:
- Ability to be deployed with any drilling system, either on land or on water.
- Digital torque motor & sensors measure directly behind vane blades.
- Computer-controlled rotation motor with torque resolution as low as 0.1°
- Peak & remoulded shear strength from ~ 1 kPa to 300 kPa
- Multiple vane blade sizes for varying soil conditions
- Pre/post-test zero-load calibration & excellent resolution (less than 1 kPa)
- Integrates with CPTu systems for combined testing
Advantages:
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- Highest data quality and repeatability due to automated system.
- Accurate measurement of undrained shear strength in clays, fine silts and tailings compared to manually operated techniques
- Reliable for tailings, dams, mining sites, and foundation design
- Complements CPTu for comprehensive soil parameter profiles
- ASTM 2573 compliant
Figures and Data






