PRECISION GEOTECHNICAL MONITORING

English (United Kingdom)Slovenčina (Slovenská republika)
Monday, 22 July 2019
Dilatometric measurements

Purpose: To measure the relative movements of the individual parts of the monitored objects, e.g. dilatations or crevices in structures or cracks in rock massif. This enables to decipher a particular stage in the deformation process as well as its mechanics. Particularly significant is the monitoring of movements in non-stationary processes (the individual stages of construction, weathering of the rock masses, etc.). The movement in the crevice may manifest itself in three ways: as opening/closing, normal displacement and shear displacement. In most cases, the greatest change occurs in the width of cracks and, therefore, the majority of devices are assembled to measure them.

Description: For the monitoring of the deformations in the crevices you can use simple monitoring techniques such as mechanical dilatometers: glass or gypsum dots, measuring watch, sliding micrometers and dilatometric staples. In addition to a stable mounting system to the monitored body on both sides of the crack a very important detail of the instrument is the uniform emplacement of the dilatometer in the fixed signs. The most convenient is the combination of the sphere and the conical opening. In the event of the inaccessible part of the examined object or continuous measurement need it is necessary to use the electronic dilatometers.

 Specifications: Vibrating crackmeters are stanard length 300mm
Measurement range:

Resolution:

Accuracy:

Temperature range:

25, 50, 100 mm

0,02% F.S.

0,1% F.S.

-30°C to 60°C

dilatometer elektronickýCrackmeterdilatometer mechanický prenosnýPortable dilatometerDilatometer mechanický trvalý3D dilatometric pointDilatometer SolexpertsDilatometer by Solexperts