Variable energy GRIZZLY®
Heavy dynamic cone penetrometer with variable energy
It is designed for compaction control and geotechnical soil investigation. Innovation designed and developed by Sol Solution DPSH-B standardised penetrometer (NF P 22476-2)
Mounted on tracks, the GRIZZLY® is all-terrain. It can be set up quickly and the verticality of the mast is easily adjusted by the hydraulics.
The hammering is automatic and its stop is programmed for rod addition, the reaching of the targeted depth and the refusal.
The on-board data acquisition system allows data to be recorded, via the penetration sensor and the blow counter. The instantaneous visualisation of the soundings can be done in cone resistance (MPa), in penetration per blow, or in N20.
The rod extraction system is integrated into the hammering column (power: 11 t of traction)
Variable energy
The GRIZZLY® automatically adapts the hammering energy according to the level of indentation measured at the last hammering stroke. To do this, it changes the drop height of the mass: 4 drop heights are possible.
Ground resistance is calculated automatically, taking into account energy changes.
The use of variable energy requires no operator intervention.
This function enables more accurate measurement of soil resistance in soft soils, and greater beating power in hard soils.
The GRIZZLY® variable-energy penetrometer is the only heavy-duty penetrometer in the world to feature this automated technology for adapting energy to the soil encountered.
Compaction control
The penetrograms obtained are compared with reference lines established according to the class of the material checked and the required compaction quality. Any anomalies are automatically calculated in accordance with standard NF P 94-063.
The reference lines and the anomaly calculation are available on the GRIZZLY® acquisition case, allowing an assessment directly on site, and also on the Websprint© online application.
Type of anomaly calculation :
– On the total height (NF P 94-063)
– By layer of constant densification
– By backfill or coating zone (Fascicule 70-1)
Soil investigation
The interpretation of the penetrographs is the responsibility of the geotechnical engineer who can assess the estimated bearing capacity of the soil and also establish correlations with other geotechnical tools (SPT, CPT, CBR, etc.).
It is used in accordance with the NF EN ISO 22476-2 and NF P 94-115 standards for soil investigation.
The online Websprint application allows the creation of geological sections and their comparison with the penetrographs obtained with the GRIZZLY®.
Features
| Depth of investigation | 10 m and more (depending on the soil encountered) |
| Power supply | Engine battery (can be connected to the mains) |
| Fuel | Petrol |
| Rod extraction power | 11 t |
| Data recovery | USB key (adapter supplied) or PC connection |
| Data processing | Websprint© online application |
| Available languages | English, French and Spanish |
Dimensions
| Folded template (m) | L 2.03 x W 0.89 x H 1.22 (can be transported in a standard L1H1 van, Citroën Jumpy, Renault Trafic, etc.) |
| Unfolded size (m) | L 2.03 x W 0.89 x H 3.42 |
| Empty weight | 950 kg |
| Hammer’s weight | 64 kg |
| Drop height | 75 cm |
Consumables supplied
| Screw-in rods of 1 m, Ø 32 mm, graduated every 20 cm | 5 |
| Fixed cones (20 cm²) | 2 |
| Sacrificial cones(20 cm²) | 10 |
| Cone holder | 1 |
Optional
| Loading ramps |
| Hammer core sampler |
| SPT core sampler |
| Torque wrench |
Websprint©
The Websprint© geotechnical web application, developed by Sol Solution, offers a new, more collaborative, mobile and secure way of working.
It’s an alternative to geotechnical software. It is multi-equipped, accessible from an office or worksite, and very easy to use.
More informationsSol Solution offers technical training in the field of geotechnics applied to civil engineering and public works. The use and interpretation of data acquired by the company’s equipment such as dynamic penetrometers can be included in our training courses. All of our trainers are from the field of earth sciences or civil engineering (geotechnician, geologist, […]
Learn more