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Konigshainer Berge Tunnel Project

Figure 13 gives an overview of the rock and soil properties determined for each weathering grade. Compared to (Heitfeld 1985) some differences have been encountered concerning description and characterization of the weathered rock mass. In the Konigshainer Berge tunnel project, hydrothermal alteration has induced increased porosity in the... [Pg.789]

Figure 14 Model of weathering in the Konigshainer Berge tunnel project with the dimenson of top heading (excavated cross section area). Stages in arabic numerals refer to Figure 7 (modified after Scholz 1999). Figure 14 Model of weathering in the Konigshainer Berge tunnel project with the dimenson of top heading (excavated cross section area). Stages in arabic numerals refer to Figure 7 (modified after Scholz 1999).
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