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List of products by author: D. Boldini
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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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Soil-structure interaction during tunnelling: an integrated approach
Abstract: In the last few years two-dimensional (2D) and three-dimensional (3D) numerical approaches have been developed to overcome the limitations of existing closed-form empirical solutions (e.g. Peck, 1969) in the prediction of tunnelling-induced settlements and related potential structural damages. This study refers to the case of the Milan metro-line 5, recently built in coarse-grained materials...
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