SysBohr GmbH products

A method of drilling through the overburden with the aid of an outer casing to support the borehole wall is the so-called duplex drilling process. The system depicted here is drilled simultaneously with outer casings and inner rods and driven by a rotary head unit.

A method of drilling through the overburden with the aid of an outer casing to support the borehole wall is the so-called duplex drilling process. The system depicted here is drilled simultaneously with outer casings and inner rods and driven by a hydraulic drifter. The drill string thus experiences both rotation and percussion.

Depending on the intended purpose of the borehole, for instance, to support a bored diaphragm wall, or a subterraneous curtain wall, a cased drilling system is necessary to realise such a borehole.

A simple method of drilling through the overburden is with the so-called drive drilling system. The system makes use of the principle of displacement, whereby a single casing is driven through the overburden with the use of a hydraulic drifter. The drill string thus experiences both rotation and percussion.

Small diameter piles are designed for different applications. They transfer their loads over skin friction to the load-bearing subsoil / stratum. For their realisation, even small drilling rigs can be used in confined conditions.

Reverse Circulation (RC) drilling is a drilling method, mostly associated with mining and exploration, where it is used to quickly and economically obtain mineral uncontaminated samples from the ground.

This drilling system is an erosion based system that creates in situ engineered geometries, such as columns, of mixed soil-cement in the subsoil. The aim is to improve the ground conditions by i. e. consolidation, vertical shoring or slicing the soil structure by means of a high velocity jet of grout at pressures of 100 bar (1450 psi) to 600 bar (8700 psi). The drill tools have been specifically designed to withstand these high pressures.

This drilling system is an erosion based system that creates in situ engineered geometries, such as columns, of mixed soil-cement in the subsoil. The aim is to improve the ground conditions by i. e. consolidation, vertical shoring or slicing the soil structure by means of a high velocity jet of grout at pressures of 100 bar (1450 psi) to 600 bar (8700 psi). The drill tools have been specifically designed to withstand these high pressures.

This drilling system is an erosion based system that creates in situ engineered geometries, such as columns, of mixed soil-cement in the subsoil. The aim is to improve the ground conditions by i. e. consolidation, vertical shoring or slicing the soil structure by means of a high velocity jet of grout at pressures of 100 bar (1450 psi) to 600 bar (8700 psi). The drill tools have been specifically designed to withstand these high pressures.