Exploració per tema "Excavation"
Ara es mostren els items 21-35 de 35
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Management of third-party risk in an urban deep excavation project
(IOS Press, 2007)
Text en actes de congrés
Accés restringit per política de l'editorialThis communication presents results from a case history in Barcelona involving a large cut-and-cover railway tunnel requiring a deep excavation (H > 20 m). The presence of a number of medium to high-rise buildings alongside ... -
Modelling of a deep excavation in a stiff clay
(2009)
Text en actes de congrés
Accés obertThis extended abstract presents an interpretation of the response of a mudstone during the excavation of a shaft at high depths (500m). Instrument layout and numerical model are described. A very good agreement is observed ... -
Modelling time-dependent plastic behaviour of geomaterials
(Universitat Politècnica de Catalunya, 2021-06-28)
Tesi
Accés obertRepresenting the time-dependent plastic behaviour of geomaterials is a critical issue in the correct application of tunnelling design techniques such as the convergence-confinement method or numerical modelling. Furthermore, ... -
Modelling underground excavations in rock masses with anisotropic time-dependent behaviour
(Springer Nature, 2022-10)
Article
Accés obertWhen modelling rock masses that behave anisotropically and in addition present a time dependent behaviour, it is relevant to select a constitutive model able to represent their actual behaviour realistically. This article ... -
Movimientos del terreno causados por la excavación mecanizada de túneles (EPB). Tramo Mas Blau-Aeropuerto (línea 9)
(Universitat Politècnica de Catalunya, 2013-07)
Projecte Final de Màster Oficial
Accés obertEl progresivo incremento en la construcción de túneles urbanos a poca profundidad, todo y que a largo plazo aportan evidentes ventajas desde el punto de vista urbanístico y ambiental, pueden crear a corto plazo problemas ... -
Movimientos inducidos en la excavación de túneles urbanos con EPB: Estudio del efecto de pantallas laterales y de las condiciones de contorno
(Universitat Politècnica de Catalunya, 2010-07-01)
Tesina
Accés obertUno de los principales problemas en la construcción de túneles urbanos con EPB es la afección a estructuras próximas a la excavación. Una práctica habitual para reducir los movimientos inducidos sobre dichas estructuras ... -
Numerical simulation of underground excavations in an indurated clay using non-local regularisation. Part 1: formulation and base case
(2022-12)
Article
Accés obertThe paper presents the numerical simulation of an underground excavation in the Callovo-Oxfordian argillaceous formation, performed in the Meuse/Haute-Marne underground research laboratory, within the context of deep ... -
Numerical simulation of underground excavations in an indurated clay using non-local regularisation. Part 2: Sensitivity analysis
(2022-12)
Article
Accés obertA sensitivity study is presented to evaluate the influence of different parameters on the simulation of an underground excavation in the Callovo-Oxfordian (COx) argillaceous formation performed in the Meuse/Haute-Marne ... -
Parametric study of the Particle Finite Element Method applied on frictior, wear and excavation processes
(Universitat Politècnica de Catalunya, 2010-07-02)
Projecte Final de Màster Oficial
Accés obertThis thesis introduces a parametric study of the Particle Finite Element Method applied to the modeling of friction, wear and excavation processes. These phenomena demand fast geometry changes where a special formulation ... -
Proyecto de construcción del pozo de Sant Ponç PK 303+640 de la LAV Barcelona - Frontera francesa. Municipio: Girona
(Universitat Politècnica de Catalunya, 2014-02-26)
Projecte/Treball Final de Carrera
Accés obert -
SDMT testing and its use in the numerical modelling of a deep excavation
(Hungarian Geotechnical Society, 2021)
Text en actes de congrés
Accés obertThe role of in situ tests in numerical analyses of deep excavations is investigated. The construction of a metro station in Barcelona required a deep excavation in a densely built urban area. Geological conditions were ... -
SDMT-based numerical analyses of deep excavation in soft soil
(2019-01)
Article
Accés restringit per política de l'editorialThe paper explores the application of conventional (DMT) and seismic (SDMT) dilatometer tests to an important case of deep excavation design. The work presents finite-element analyses simulating a deep excavation close to ... -
Simulation of cement-improved clay structures with a bonded elasto-plastic model: A practical approach
(2012-09)
Article
Accés restringit per política de l'editorialEngineering practice has usually dealt with the treated soil bodies using simplistic constitutive models (e.g. elastic perfectly-plastic Mohr–Coulomb). In this paper, a more refined bonded elasto-plastic model is here ... -
Use of Innovative Shotcrete-Tube Technology in Excavation Mechanism Instead of Bentonite Clay Cycling
(2013)
Article
Accés obertNowadays excavations are mostly performed with bentonite clay cycling which is so inappropriate in economical and timing issues of projects.In this method introduced, all unwanted machinery and constructions are limited ... -
Vibration analysis and empirical law definition for different equipment in a civil construction
(2020-07-08)
Article
Accés obertThe potential affection of any construction, and especially historical sites, is of great concern for their long-term maintenance and stability. This study has determined the vibration behavior in poor-quality rock mass ...