Abstract
This paper presents the engineering geological properties and support design for a diversion tunnel through diabase at the Kapikaya dam site, eastern Turkey. The rock mass rating and rock mass index were used to determine the support requirements, which were also analyzed using commercial software based on the finite element method. The parameters calculated by the empirical methods were used as input parameters for the FEM analysis and the results from the two methods were compared. It was found that the optimum solution was obtained by using a combination of both empirical and numerical approaches.
Résumé
L’article présente les propriétés géotechniques des terrains et la conception d’un soutènement pour un tunnel de dérivation creusé dans des diabases sur le site du barrage de Kapikaya (Turquie de l’est). Les indices RMR et RMi ont été utilisés pour définir les renforcements nécessaires, utilisant par ailleurs des logiciels commerciaux basés sur la méthode des éléments finis (MEF). Les paramètres calculés par la méthode empirique ont été utilisés comme données d’entrée pour l’analyse MEF et les résultats des deux méthodes ont été comparés. La méthode optimale a été obtenue par une combinaison des approches empiriques et numériques.
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Gurocak, Z. Analyses of stability and support design for a diversion tunnel at the Kapikaya dam site, Turkey. Bull Eng Geol Environ 70, 41–52 (2011). https://doi.org/10.1007/s10064-009-0258-2
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DOI: https://doi.org/10.1007/s10064-009-0258-2