Drilling can be carried out quickly and efficiently with the so-called lost cone drilling method. Royal Eijkelkamp has developed a manually controlled set in which an electric percussion hammer is used to hammer the lost cone and the associated casing into the ground.
The standard set for the lost cone drilling method has been developed for drilling using the lost cone method to a depth of 10 metres. The specially designed lost cone is hammered into the ground with an electric percussion hammer, which is placed on the casing. The lost cone creates a very straight borehole that is slightly larger in diameter than the casing to reduce friction. This method makes it easier to reach greater depths and limits friction when pulling out the casing.
The lost cone drilling method is successfully used in environmental research for the installation of small diameter monitoring wells. After drilling, the lost cone is left in the ground. This causes no environmental problems as the material used is naturally present in the ground. The method is also ideal for installing wells in stony ground. It is also the safest way to sink explosives.
Please note that this type of drilling is limited to soils with a certain porosity and the value of the shear stress of the soil must not be too high.
- Environmental soil exploration
- Limited to soils with a certain porosity
- The shear stress value of the soil must not be too high
SCOPE OF DELIVERY
- Electric percussion hammer drill
- Power unit with insulation protection
- Percussion pins
- Impact cone holder for impact housing
- Steel sleeve
- Pulling equipment
- Lost cones
- Various accessories
Manufacturer: Eijkelkamp Soil & Water B.V.
