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Author(s):	Plinninger, Ralf J.; Smettan, Klaus; Kresse, John
Title:
Abstract:	The heritage-protected ensemble of Castle Brewery, boarding school and medieval Cave Castle forms the centre of Stein a.d. Traun, Traunstein County, Bavaria/Germany. In large parts of the area, the buildings nestle to or are built directly into a vertical or even overhanging rock slope up to 50 m high, formed of Quaternary conglomerates. Potential rock or block falls as well as larger scale instabilities in this slope represent hazards to the infrastructure below it, as was dramatically shown by the tragic event in January 2010. In order to monitor changes in the rock mass, geotechnical monitoring and early-warning systems were installed in two areas in 2011. This article describes the specific structural and geomechanical situation of the two investigation areas and presents the monitoring concept and the first measured data. Das denkmalgeschützte Ensemble von Schlossbrauerei, traditionsreichem Internat und mittelalterlicher Felsenburg bildet den Ortskern von Stein an der Traun, Landkreis Traunstein, Bayern. Die Gebäude schmiegen sich dabei in weiten Bereichen direkt an eine bis zu rund 50 m hohe, senkrechte bis überhängende Nagelfluhwand an bzw. sind in diese hineingebaut. Das Risiko von Stein- oder Blockschlägen sowie ggf. auch größeren Felsstürzen aus der Felswand stellt eine Gefährdung der darunterliegenden Infrastruktur dar, deren potenzielle Auswirkungen das tragische Ereignis vom Januar 2010 vor Augen geführt hat. Zur Überwachung von Veränderungen wurden 2011 geotechnische Monitoring- und Frühwarnsysteme in zwei Teilbereichen eingerichtet. Der Beitrag beschreibt die spezifische bauliche und geomechanische Situation und stellt Auslegung und erste Messergebnisse des installierten Systems vor.
Source:	Geomechanics and Tunnelling 5 (2012), No. 4
Page/s:	339-346
Language of Publication:	English/German

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