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Abstract:	There are currently no recognised prediction models available for the estimation of tool wear in shield tunnelling in soil. This paper describes the current state of knowledge through the interpretation of the available index tests, available correlations and analogies to hard rock. Then follows a discussion of the essential soil properties and the process-related interactions, which can also determine tool wear in soil. Für den Schildvortrieb im Lockergestein liegen derzeit keine anerkannten Prognosemodelle zur Abschätzung des Werkzeugverschleißes vor. Der Artikel beschreibt die aktuellen Erkenntnisse bei Interpretation der existierenden Index-Versuche, bestehende Korrelationen und Analogien zum Festgestein. Im Weiteren wird auf die maßgebenden Baugrundeigenschaften und die den Werkzeugverschleiß bestimmenden verfahrenstechnischen Interaktionen im Lockergestein eingegangen.
Source:	Geomechanics and Tunnelling 4 (2011), No. 1
Page/s:	36-54
Language of Publication:	English/German

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