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List of products by author: A. Voza
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A standard procedure for rock-burst prediction during tunnel construction the Mules method
Abstract: Rock-burst phenomena occur frequently during the excavation of deep tunnels in good-quality rock-mass. This paper describes the procedure developed and successfully applied during the excavation of the Brenner Base Tunnel in the Brixner granite formation for the early detection of rock-burst related risk. It consists in the continuous monitoring of acoustic emissions and in their comparison...
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Assessment of the drill-and-blast related overbreak in the BBT system
Abstract: Drill-and-blast is the common conventional tunnelling method in hard rock conditions. This paper analyses the characteristics of the blasting-induced overbreak in some of the tunnels of the Brenner Base Tunnel (BBT) system, in order to evaluate its correlation with the main geometrical and technical parameters of the excavation as well as the geomechanical properties of the rock mass. In...
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Brenner Base Tunnel, Italian Side, Lot Mules 2-3: Monitoring, Surveys, Investigations and Checks during Construction
Abstract: Lot Mules 2-3 is the main segment of BBT (Brenner Base Tunnel) on Italian Side. The paper illustrates the activities forecasted in Detailed Design (performed by the Designer Joint Venture: Pro Iter – leader, Pöyry Schweiz, Pini Swiss Engineers and Pasquali Rausa Engineering) and carried out during construction, to compare the design assumptions to the actual behavior of both the rock mass and...
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Key machine parameters for classification of rock mass in TBM excavation in BBT
Abstract: The Exploratory Tunnel of BBT is excavated ahead of the two equal main tunnels and with a smaller diameter as compared to them, in order to investigate the conditions of the rock mass and its response to the excavation, thus allowing the execution of construction works with a reasonable optimization of risks. The study analyses the section located before the construction stoppage that took...
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The Brenner Base Tunnel - an overview of the status of the project
Abstract: The Brenner Base Tunnel (BBT) runs for 64 km between Austria and Italy, making it the longest underground railway tunnel in the world. The BBT consists of two single-track tubes, cross passages every 333 m, an exploratory tunnel, and three emergency stops. The planning is underway since 1999, and construction began in 2007. More than half of a total 230 km of tunnel construction including 80%...
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