Grundocore core drills
for the perfect construction pit

Circular construction pits allow fast and particularly gentle access to the underground infrastructure without classical excavation work. An essential advantage of the round construction pit compared to a conventional square-cut excavation pit is the long-term strength after re-closure.

For producing these round construction pits, thecore drill bits of a GRUNDOCORE coring machine make a circular cut into the surface made of asphalt, concrete or reinforced concrete. The core hole is neatly cut out and later re-inserted, so that the surface is sustainably restored. That way, minimally invasive keyholes and even walk-in round construction pits can be produced with the core hole drill, avoiding subsequent cost.

Advantages of Grundocore core drills

Conceptual solution for the trenchless installation and renewal of water, gas, power and data property service connections through a keyhole
The GRUNDOCORE series comprises for coring machines for keyholes from 650 mm to 2.000 mm Ø
The keyhole causes even lower surface damage and subsequent costs compared to conventional square-cut excavation pits
Keyhole means safe, more productive and reduced reinstatement surface work
For assembly work inside the keyhole a variety of special telescopic tools are available

APPLICATION RANGE of Grundocore core drills

Core cutting of round construction pits from Ø 650 to 2.000 mm in asphalt, concrete or reinforced concrete
Construction of minimally invasive keyholes up to walk-in construction pits
Core holes as start/target pits for new pipe installation
Core holes for service and repair works, e.g.
- Setting of blind caps
- Exchange of gate valves
- Removal of fittings
- Cleaning of supply lines

...

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THE ROUND CONSTRUCTION PIT

THE METHOD OF THE FUTURE

GRUNDOCORE 1500/650

GRUNDOCORE TSC 650/600

GRUNDOCORE 650/600

GRUNDOCORE 650/450

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