product Settlement

Vibrating Wire Settlement Cell

The Vibrating Wire Settlement Cell is used for the measurement & control of settlement in soil at a single point. Applications include:
  • The measurement of settlement in embankments, earth and rockfill dams
  • The measurement of settlement and heave of oil tanks and building foundations
  • Monitoring of bridge piers, abutments and retaining walls
  • Control of subsidence

The cell consists of a Vibrating Wire Transducer with an integral water chamber. A pair of nylon tubes and an armoured cable extends from the cell to a readout terminal located on stable ground. The nylon tubes are filled with water and connected, at one end, to a datum pot and at the other end to the transducer chamber. The cable connects the transducer to a terminal panel. Vertical movement of the cell relative to its readout location results in a change in liquid pressure within the chamber.

To measure the pressure change and hence the amount of settlement or heave, a Vibrating Wire Readout/Logger provides a direct reading of fluid pressure acting on the cell. The pressure is displayed in metres of water and can then be recorded for comparison with previously recorded data. A portable readout unit can be used in conjunction with other vibrating wire instruments although data may require corrections due to temperature and barometric pressure variations.

Please request Manuals through info@itm-soil.com.au

datasheet
  • Reliable, simple to install and read
  • 15m and 30m operating ranges available
  • Borehole and trench type Settlement Cell available
  • Measurements can be made beneath concrete and earth structures at locations, which are inaccessible to other types of instruments
  • No vertical rods or tubes to interfere with construction
  • Unaffected by lateral movements
  • Twin liquid lines allow for re-circulation of water through the system after installation and insitu calibration test if required