Geotechnical drilling
The Sonic drilling method is the go-to solution when conventional drilling techniques do not yield the desired results. This technology offers numerous advantages for both destructive drilling and core sampling: increased productivity, a sample recovery rate of 100% or close to it even in difficult soils, no or minimal deviation, little or no drilling fluid, and more.
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Optimal sampling of heterogeneous layers and hard formations
Need to collect samples from wet sand, other alluvial deposits, or geological formations with highly heterogeneous layers? With the highest possible recovery rates? Sonic coring is THE solution. It can even collect samples from unsaturated soil layers. Even the most difficult-to-sample soils (silt, wet sand, peat, etc.) are recovered at 100%! Samples are collected via continuous coring or, using the Aqualock, only at the desired depth (targeted sampling).
Core drills (single or double), with their tungsten carbide bits, are best suited for mixed terrain, gravel, cobblestones, very hard rock, etc., always with the same goal in mind: to achieve up to 100% recovery at a speed that is unmatched by traditional methods.
In addition, the DUO option (dual rotary head) allows for rotary drilling (tricone, three-blade) and all types of conventional and wireline coring for deeper coring operations if necessary. The hydraulic head retraction also allows for the installation of an automatic driving system for standard penetration tests (SPT), standard sampling corers, split tubes, etc.
All of these can be used in conjunction with sonic casings.
The use of casing with a disposable tool also makes it an optimal destructive drilling method, minimizing efficiency losses by at least 70% compared to traditional drilling methods. Sonic drilling allows for much faster drilling, particularly through silt, gravel, rock, and hard formations. It can even be successfully installed in unstable sand.
Sonic drilling rigs, when used with their specialized core drilling tools for soil and rock, provide optimal data in a minimum amount of time, while remaining easy to use. The samples are intact, undisturbed, and provide highly accurate geological information. They are ideal for defining a precise geological profile and conducting reliable laboratory analyses.
THE BENEFITS
Drilling and core sampling in all types of soil, even highly heterogeneous ones
Unmatched speed: 4 to 6 times faster than traditional techniques
100% or near-100% recovery rate even in difficult terrain, for accurate and reliable results
Can be used in combination with traditional techniques (SPT, standard core sampling, auger drilling, FDT, etc.)
Data acquisition option for recording and visualization
Clean drilling with little or no injection
Practical and safe method
OTHER FIELDS OF APPLICATION
- Mining Surveys
- Environmental recognition
- Foundations (micropiles, tie rods, piles, etc.)
- Water drilling and geothermal energy
- Seismic drilling