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Abstract:	The abrasiveness of soil and rock is a determining factor for tool wear in all processes of rock excavation above and below ground, for example drilling, cutting and excavating. Although this is highly cost-relevant, no classification scheme has yet been produced, with which soil and rock can be classified according to their abrasiveness and wearing effect. Comparative investigations using three methods of determining abrasiveness were used to produce a proposal for the classification of rock material. Although further series of investigations still have to be performed, a classification scheme has been produced, which is already in practical use and could be of use in future projects. Die Abrasivität von Fest- und Lockergesteinen gilt als bestimmender Faktor für den Werkzeugverschleiß bei allen gebirgslösenden Verfahren über und unter Tage, z.B. beim Bohren, Fräsen, Schneiden, Schälen und Baggern. Obwohl höchst kostenrelevant, existiert bisher noch kein gemeinsames Klassifikationsschema, mit dem sowohl Fest- als auch Lockergesteine hinsichtlich ihrer Abrasivität und Verschleißwirkung eingeteilt werden können. Durch vergleichende Untersuchungen mit drei Methoden der Abrasivitätsbestimmung konnte ein Vorschlag für die Klassifikation von Gesteinen entworfen werden. Obwohl noch weitergehende Reihenuntersuchungen durchgeführt werden müssen, so kristallisiert sich doch ein Klassifikationsschema heraus, das in der Praxis bereits angewandt wird und bei weiteren Projekten Verwendung finden könnte.
Source:	Geomechanics and Tunnelling 2 (2009), No. 2
Page/s:	179-188
Language of Publication:	English/German

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