DEVICE FOR MEASURING DEFORMATIONS OF THE GROUND

The invention relates to devices for measuring a deformation using an optical fiber as sensing element, with the option of measuring the distribution of a deformation of the optical fiber in the longitudinal direction. The invention makes it possible to limit the force transmitted by an anchor to a...

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Bibliographische Detailangaben
Hauptverfasser:	GRECHANOV, ALEKSANDR VLADIMIROVICH, NAUMOV, ALEKSANDR NIKOLAEVICH
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS SOIL SHIFTING TARIFF METERING APPARATUS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:	The invention relates to devices for measuring a deformation using an optical fiber as sensing element, with the option of measuring the distribution of a deformation of the optical fiber in the longitudinal direction. The invention makes it possible to limit the force transmitted by an anchor to a detection cable in the event of the anchors shifting relative to one another as a result of movements of the ground which are not dependent on the properties of the ground, which properties may be known imprecisely or may change over time, and, on the basis of this, to extend the service life of the detection cable. The device for measuring deformations of the ground comprises an optical detection cable which is sensitive to deformation, a measuring unit which is connected to the cable, and anchors which are connected to the cable and to the ground, and is equipped with a system for protecting the cable from destruction, said system comprising a safety device built into each anchor.