| Autor: |
Spyridis, Panagiotis, Konstantis, Spyridon, Gakis, Angelos |
| Předmět: |
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| Zdroj: |
Geomechanik und Tunnelbau; Apr2016, Vol. 9 Issue 2, p158-164, 7p |
| Abstrakt: |
In the process of dimensioning a tunnel lining support an optimized structural system is pursued that can accommodate the inherent uncertainties associated with the geotechnical, hydro-geological, and environmental conditions. Particularly for geotechnics, uncertainty has become a major issue of scientific discussion according to a number of recent publications. At the same time, advanced performance criteria often require probabilistic assessments in order to quantify a structure's safety and reliability or to inform life-cycle engineering decisions. This contribution demonstrates a novel design approach for the design assessment of concrete tunnel linings. The Index for the Capacity Utilization of Linings in Tunnels (CULT-I) introduced herein, facilitates the quantification of reliability of a tunnel lining support, while it aids toward a rationalized, performance-based design optimization with considerations on geotechnical uncertainty. A typical case of a shallow urban tunnel excavated in soft ground using the TBM method is presented, demonstrating the practical application and feasibility of the proposed approach. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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