MEASURING SYSTEM FOR GROUTING-DEFECT OF ROCK-BOLT AND MEASURING METHOD USING THE SAME

A system and a method for measuring a grouting defect of a rock bolt is provided to check the grouting defect or the size of the grouting defect by measuring and analyzing a signal wave artificially generated from an end of the rock bolt laid under the ground. A system for measuring a grouting defec...

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Bibliographische Detailangaben

Hauptverfasser:	LEE, IN MO, KIM, HYUN BAE, AN, DONG GEUN, LEE, YONG JUN
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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