Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"Geotecnica"”.
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La minería de los metales en la provincia de Madrid : patrimonio minero y puesta en valor delespacio subterráneo
… en 3 dimensiones y definidas sus características geotecnicas: la mina Indiana de Bustarviejo y la mina Primera de Guadarrama (conocida popularmente como "mina de Cabeza Lijar"). En ellas se harán estudios pormenorizados de su posible puesta en valor. En las consideraciones finales se concluye el …
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L'effetto fisico del getto d'acqua ad alta velocità sulle terre
… nel campo della meccanica delle terre e della geotecnica. Lo studio ha mostrato la validità della tecnica per la misura delle deformazioni indotte dal getto d’acqua su una terra, e di come questa può essere utilizzata per la misura della velocità di penetrazione del getto. Nella seconda fase …
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A nonlinear viscoplastic double yield surface constitutive model for geologic materials
A new constitutive model is proposed to describe the stress-strain-time behaviour of clays and organic soils. This approach is based on the framework of overstress viscoplastic theory and can be applied to any elastoplastic (inviscid) model.The most innovative idea of the proposed model is the …
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Seismic analysis of a large size underground cavern
Underground structures are generally assumed to be much safer to earthquake loading, compared to above surface structures. However, many large underground structures have witnessed great damage in recent earthquakes. Thus underground structures in earthquake prone zones should be designed to …
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3D numerical modelling of brittle failure in mechanized excavation of deep tunnels
For long and deep tunnels as currently under construction through the Alps, mechanised excavation by using Tunnel Boring Machines (TBMs) may contribute significantly to savings in construction times and costs. Questions are however posed due to the severe ground conditions which in cases are …
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Uncertainties in the Estimation of the Shear-Wave Velocity and the Small-Strain Damping Ratio from Surface Wave Analysis
L'abstract è presente nell'allegato / the abstract is in the attachment
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Experimental investigation on the effects of CO2 and acid exposure on the hydro-mechanical behaviour of a clayey caprock
L'abstract è presente nell'allegato / the abstract is in the attachment
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Modelli meccanici per l'innesco e la propagazione delle valanghe di neve
… del Dipartimento di Ingegneria Strutturale e Geotecnica del Politecnico di Torino, principalmente basato sullo sviluppo due modelli continui per la modellazione del moto delle valanghe dense: il primo, per valanghe di piccola-media dimensione, basato sulla Teoria degli Automi Cellulari; il …
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Tunnels in swelling ground: simulation of 3D stress paths by triaxial laboratory testing
The research is devoted to study the swelling behaviour in tunnels. A new triaxial testing procedure is developed, which is able to quantify the swelling behaviour of soft rocks and stiff soils. The Caneva Clay is tested both by conventional oedometer swelling tests and by the new triaxial test. …
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A new approach for predicting brittle or ductile failure of rock in deep excavations
L'abstract è presente nell'allegato / the abstract is in the attachment
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NUMERICAL, ANALYTICAL AND EXPERIMENTAL STUDY OF THE THERMAL BEHAVIOUR OF INNOVATIVE ENERGY GEOSTRUCTURES
This work aims to advance understanding and knowledge of the thermal behaviour of innovative Energy Geostruc- tures (EGs), which serve a dual purpose: providing structural stability and supporting buildings or soil while harnessing geothermal energy for the heating and/or cooling demands of …
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Mechanical behaviour of Clay-Shales (Argille Scagliose) and implications on the design of tunnels
In the framework of Geotechnical Engineering and Rock Mechanics many cases are known (described in either the classical or the modern tunnelling bibliography) where, even during construction, large deformations and high stresses in the lining are observed. This is the result of natural phenomena …
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Multistation Methods for Geotechnical Characterization using Surface Waves
This dissertation deals with soil characterization methods based on surface wave propagation applied to geotechnical engineering purposes. This topic has gained much interest in the last decade because of the appealing possibilities given by non-invasive methods, which are at once very flexible and …
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A coupled depth-averaged and three-dimensional numerical model for flow-like landslides interacting with obstacles
L'abstract è presente nell'allegato / the abstract is in the attachment
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Constitutive and numerical modelling of clayey caprocks in the context of geological energy storage
L'abstract è presente nell'allegato / the abstract is in the attachment
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Artificial Ground Freezing in sandy soils. Experimental and numerical analysis on the role of fine content on the thermo-hydro-mechanical behavior.
L'abstract è presente nell'allegato / the abstract is in the attachment
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Climate change impacts on landslide susceptibility in the Alpine region using a machine learning approach
L'abstract è presente nell'allegato / the abstract is in the attachment
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Chemo-hydro-mechanical effects of CO2 storage on Italian reconstituted caprock
L'abstract è presente nell'allegato / the abstract is in the attachment
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