No document
Search & filter
Search for a publication
Search & filter
List of products by author: G. Lunardi
-
ADECO and NATM comparison: the case of Višňové Tunnel
Abstract: The paper presents the application of the “A.DE.CO-RS Approach” for the construction of “Višňové Tunnel” in D1 Motorway. It is a double lane tunnel of the D1 Motorway “Lietavská Lúčka – Višňové – Dubná Skala”, about 7450 m length. It’s located in the Žilina district of Slovakia. In a Yellow FIDIC contract, the JV Salini Impregilo–DUHA proposed to the Client a variation of the excavation...
0,00 € -
Arch shaped cut-and-cover tunnels on the new “Pedemontana Lombarda” motorway
Abstract: An innovative prefabrication method has been successfully employed for the construction of arch-shaped cut and cover tunnels on the new “Pedelombarda” motorway. The tunnels consist of prefabricated components resting on a cast-in-place invert. This solution has been employed with span widths varying from 14 m to 19 m and overburdens from a minimum of 1 m up to 8-9 m....
0,00 € -
Copenhagen Cityringen Metro: EPB-TBM head pressure definition
Abstract: The paper describes a relevant design aspect for the Copenhagen Cityringen Metro Line, which consists of two single-track tunnels, each approximately 16 km in length, 17 underground stations, 3 construction and ventilation shafts and an access ramp. The tunnels, 5.8 m in diameter, are excavated by using four EPB TBMs; the tunnel lining is composed by 5+1 r.c. segments, 1.4 m long and 0.3 m...
0,00 € -
Drill and Blast Vibration Monitoring: Overpass of A10 Motorway
Abstract: Drill and blast excavation produces the propagation of seismic waves with consequent vibration phenomena in the surrounding rock mass, interfering with pre-existing structures or infrastructures. The paper presents the case of Borzoli Erzelli Tunnel (excavation area equal to 120m). The tunnel has to overpass two tubes of existing motorway tunnel “Don Guanella” in operation with only 6m gap. In...
0,00 € -
Earth Pressure Balance (EPB) TBM excavation the case of Serravalle tunnel (Terzo
Abstract: Earth Pressure Balance (EPB) TBMs are able to deal with the main issues in urban tunnelling that include surface settlement control, maintaining of the existing structures requirements and stability of the excavation face. Tunnels of several kilometres can also include quite different conditions along the tunnel alignment in terms of rock / soil characteristics, groundwater and overburden. In...
0,00 € -
Haga Station and Quick Clay of the West Link Project in Gothenburg - Geotechnical
Abstract: Haga Station is part of the West Link Project in Gothenburg, which is one of Sweden’s largest and most complex rail projects. Part of the station is located in glaciomarine clays deposits with an estimated depth of 45-50 m, covered by filling consisting of gravel and sand with a thickness between 1 and 5 m and separated from the bedrock by a friction soil layer with thickness ranging between...
0,00 € -
High Speed Railway Milan – Genoa, Parametric analysis of rock stress-strain control during tunnel excavation in the...
Abstract: The Stretch of the Italian high speed railway between Milan and Genoa is currently under construction and will be completed by 2021 with more than 85 km of tunnels. More than 60 % of the tunnel excavation will be realized in the “Argille a Palombini” formation (aP), characterized by an alternation of claystone schists with limestone lenses, highly tectonized and squeezing. The paper describes...
0,00 € -
High-Speed Railway Milan – Genoa, implementation of coupled analysis to estimate thermo-mechanical effects produced...
Abstract: The Stretch of the Italian High Speed Railway between Genoa and Milano is currently under construction with more than 78 km running tunnels and will be completed by 2021. More than 20 km of the tunnel excavation will be executed by EPB TBM, with overburden ranging from 5 to 600 m and geomechanical condition varying from hard rock to soft marble. Segmental lining, in precast concrete and...
0,00 € -
New Bologna Centrale High Speed Railway Station Monitoring project- technology at the service of safety
Abstract: The Bologna Central Station, is one of the new stations on the Milan-Naples high speed railway line and it is located in the center of the city. The station has been developed mostly underground, on three levels. The excavation covered an area approximately 630m long and 41m wide, with an excavation depth of 25m.The particular characteristics of the underground structure and its location,...
0,00 € -
The application of Semi-Automatic Tubular Arch inside Boscaccio Tunnel: a new concept of primary lining
Abstract: Tunnel excavation is a particularly hazardous activity due to working in confined spaces, in addition uncertain ground conditions and the use of heavy equipment creates additional occupational safety and health hazards for site personnel. One of the most important request of underground construction market is a safety level increase during excavation stage. The risks are well known and this...
0,00 € -
The role of underground transportation inside Milano’s Smart City perspective
Abstract: Making a Smart City out of a city is a complex process involving deep-rooted innovation with regard to: tangible and intangible infrastructures, the lifestyles of citizens; the regeneration and design of public spaces, strategies and tools to develop the economy and the handling of complexities. Public administration on its own cannot transform a city into a smart city, but it does have the...
0,00 € -
Warsaw metro Line 2: TBM Excavation in difficult condition: The underpass of Vistula river
Abstract: the central stretch of the Warsaw Metro Line 2 has an extension of 6,3 km with 7 stations. The paper describes the underpass of Vistula River which has been the most critical of several significant underpasses dealt during the excavation with the TBM. The collected geotechnical data and bathymetric surveys have been useful to define the TBM parameters according the A.DE.CO-RS design approach....
0,00 € -
Widening the “Montedomini” tunnel in the presence of traffic: the evolution of the “Nazzano” method
Abstract: Widening a motorway tunnel in the presence of traffic without resorting to alternative routes or reductions in the level of service was attempted for the first time in the world in the early 2000’s to widen the Nazzano Tunnel (A1 Motorway , near Rome). Completion of that project constituted without doubt a true milestone for tunnelling. It demonstrated the feasibility and efficiency of the...
0,00 €
