The Vibrating Wire Soil Extensometer is used to measure horizontal extension or compression in soil.

Typical applications include:

• Measurement of lateral deformation beneath earth and rock-fill embankments and dams
• Monitor displacements across joints and faults in rocks
• Locating tension cracks in the crest of earth-fill dams
• Measuring heave in the base of deep excavations
• Displacements of retaining walls, bridge piers and abutment
• Monitoring natural and cut slopes, quarry and mining excavations
• Monitor vertical foundation settlement in various structures including settlement within earth dams

The vibrating Wire Soil Extensometer consists of a vibrating wire displacement transducer in a sealed housing. The transducer comprises of a vibrating wire sensing element anchored at one end and connected to a spring loaded displacement rod at the other end.

As the push rod is moved out from the housing the spring is elongated causing an increase in the vibrating wire tension (either compression or tensile strain can be measured). This tension is directly proportional to movement of the displacement rod.

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