Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GEOMECHANICAL CHARACTERIZATION OF ROCK MASSES FOR TUNNEL EXCAVATION WITH TBM
The prediction of Tunnel Boring Machine (TBM) performances and the comprehension of the relationship between the geological, mechanical and structural features of a rock mass and the machine behaviour are fundamental in order to select the most effective tunnel construction methods and to estimate the condition of excavation in terms of time and economic costs of the infrastructure. The general purpose of this work is to carry out predictive models utilisable during the early stage of tunnel planning and realisation; for this purpose, many approaches have been considered. Simple and multiple, both linear and nonlinear, regression analyses have been performed in order to achieve an empirical equation able to estimate the principal TBM performance indices (ROP and FPI). In addition, Multiple Correspondence Analysis and clustering have been developed. A modified version of the Rock Engineering System has been performed and used to obtain a predictive model. This study focuses on the exploratory tunnel named “La Maddalena”, located in Northern Italy, Western Alps, where geological surveys data have been continuously performed during tunnel construction; this allowed the collection of a large amount of geological, geotechnical and TBM performance data.
GEOMECHANICAL CHARACTERIZATION OF ROCK MASSES FOR TUNNEL EXCAVATION WITH TBM
The prediction of Tunnel Boring Machine (TBM) performances and the comprehension of the relationship between the geological, mechanical and structural features of a rock mass and the machine behaviour are fundamental in order to select the most effective tunnel construction methods and to estimate the condition of excavation in terms of time and economic costs of the infrastructure. The general purpose of this work is to carry out predictive models utilisable during the early stage of tunnel planning and realisation; for this purpose, many approaches have been considered. Simple and multiple, both linear and nonlinear, regression analyses have been performed in order to achieve an empirical equation able to estimate the principal TBM performance indices (ROP and FPI). In addition, Multiple Correspondence Analysis and clustering have been developed. A modified version of the Rock Engineering System has been performed and used to obtain a predictive model. This study focuses on the exploratory tunnel named “La Maddalena”, located in Northern Italy, Western Alps, where geological surveys data have been continuously performed during tunnel construction; this allowed the collection of a large amount of geological, geotechnical and TBM performance data.
GEOMECHANICAL CHARACTERIZATION OF ROCK MASSES FOR TUNNEL EXCAVATION WITH TBM
07.02.2019
doi:10.13130/armetti-giacomo_phd2019-02-07
Hochschulschrift
Elektronische Ressource
Englisch
DDC:
621
An integrated multiscale approach for characterization of rock masses subjected to tunnel excavation
| DOAJ | 2018
Geomechanical Characterization of Excavation Slopes in Central Portugal
| British Library Conference Proceedings | 2002
Analysis of Solid-Fluid Coupling for Tunnel Excavation in Complicated Fractured Rock Masses
| British Library Online Contents | 2010
2D and 3D GIS-based geological and geomechanical survey during tunnel excavation
| British Library Online Contents | 2015