The 46B conventional single core barrel from Technidrill’s B range is designed for sampling in homogeneous ground during geotechnical investigations. Its lightweight design without an inner tube reduces tool weight and complexity, which eases handling, speeds up operations, and lowers cost per drilled meter. This conventional core barrel is intended for jobsites where full core preservation is not essential, while still targeting high drilling cadence and controlled logistics.
Technical specification of “B” single core barrel
- Type: conventional single core barrel – B range
- Available diameters: Ø46 mm to Ø146 mm (including the 46B model)
- Standard lengths: 500 mm, 1,000 mm, 1,500 mm, 3,000 mm
- Core barrel heads: available separately for maintenance or custom configuration
- Architecture: no inner tube, fewer parts for simplified servicing
Advantages of the 46B conventional single core barrel
- Lower operating cost: reduced cost per meter versus double core barrels thanks to a lean design and fewer consumables.
- Productivity: higher penetration rate in homogeneous formations, driven by the reduced cutting surface of the bit/crown.
- Limited maintenance: fewer mechanical components to monitor or replace, helping minimize downtime and stabilize schedules.
- Easy handling: a light, manageable tool ideal for repetitive soil investigations and modest depths.
Limitations of use
As with any core barrel without an inner tube, the 46B is restricted to homogeneous, cohesive, stable ground. In heterogeneous or loose soils, core integrity can be compromised during extraction. In such cases, choose a core barrel that ensures core retention in mixed ground.
Typical applications
The 46B single core barrel is well suited to high-cadence geotechnical drilling campaigns, repetitive jobs, and reconnaissance operations. The primary objective on these projects is to control costs while maintaining an operational quality consistent with soil investigation in homogeneous ground.
Need a conventional single core barrel that’s efficient and cost-effective for your soil investigations? Contact Technidrill to select your core barrel (diameter, length, head) according to your cadence and maintenance goals. You can also explore our full range of soil-investigation drilling tools.
