Settlement and Displacement

DS850

Extrude meter

DS850_extrude_meter
landslide_icon

Landslides

tunnel_icon

Tunnels

settlement_icon

Settlement

IP68_icon

Protection

resistant_icon

Resistant

Applications

Measurements of excavation face detection .

Description

The DS850 extrude meter was designed for:

  • detect the deformations of the advance face during the excavation of a tunnel
  • measure vertical settlements with great precision through repeated measurements over time (detecting the variations in displacement between the reference rings).

The system consists of: probe, cable, rods, inclinometer tube, magnetic rings and reading unit.
The extrusometric probe is made up of two wheel-carrying trolleys and by two magnetostrictive sensors.
The connection metered electrical cable is equipped with a marine grade outer sheath and a kevlar core that guarantees the reliability of the readings even in the long term.
The inspection tube it is equipped with grooves that facilitate the sliding of the probe inside the tube, while outside the magnetic rings are installed at a distance of 1m from each other, which serve to ensure good adherence to the surrounding ground. Finally, the tube is made integral with the surrounding ground by means of cementation.

Reading data

Manual reading

Downloads

For information and quotes write us or call us at: +39 02 97003039

Related products

DS825_rotary_extensometer

DS825

Rotary extensometer

DS830_multipoint_borehole_extensometer

DS830

Multipoint borehole extensometer

DS840_fixed_extrude_meter

DS840

Fixed extrude meter

DS855_depth_fixed_extrude_meter

DS855

Depth fixed extrude meter