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Papers from WTC and ITA conferences have been made available as PDF documents.
ProceedingsThere are 1984 documents.
List of endorsed conferences
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WTC
World Tunnelling Congress
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Innovative waterproofing system for “Rivarolo” Tunnel
Abstract: In the field of the major underground works to ensure structures durability and functional-ity, it is essential to realize a proper waterproofing system. Especially, in Tunnel works all the products used must guarantee elevated performances with high life expectancy up to 100 years, as now frequently requested by technical specifications and customers. The division Underground Technology Team...
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Project study of tunnels with time-dependent behaviour - Records of planning and construction
Abstract: Recently, the maintenance of the aging infrastructures has become a more serious social issue in Japan. It would be ideal if the social aging infrastructure could be to be repaired and maintained in an efficient manner. The authors selected a pair of the road tunnels as the study area in order to develop estimation methods for tunnels with time-dependent behaviour of the rock around the tunnel....
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Uskudar-Umraniye-Cekmekoy metro construction project: cement injection filling of limestone karst cavities in...
Abstract: Within the scope of the Uskudar-Umranıye-Cekmekoy metro construction project conducted by the Istanbul Metropolitan Municipality Department of Rail Systems, Directorate of Rail Systems on Asian Side tunnel excavations are performed by using both NATM and TBM excavation methods. Platform, scissors crossing tunnel, transportation, connecting and ladder tunnels are excavated with NATM method...
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Erosion performance with abrasive flow rate for abrasive waterjet rock cutting
Abstract: The abrasive waterjet technique is broadly used to cut soft to hard materials. Abrasive waterjet cutting has many advantages, including low vibration, geometric flexibility, and environmental friendliness. Thus, abrasive waterjet cutting has been applied to enhance conventional excavation methods (Summers 2012, Oh et al. 2013). The application of abrasive waterjet technology can improve the...
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Open gallery solution for a tunnel on the National Railway Corridor IV
Abstract: The article describes the tunneling techniques used for Zam tunnel construction, section Border - Curtici – Simeria, part of Corridor IV PAN EUROPEAN for trains with maximum speed of 160 Km/h. The tunnel, whose section is double and electrified, has a length of 340 m and it is located on the left bank of the Mures river, near Deva, in an area where the slope is in contact with the river. The...
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Design and construction tunnels new lines 3 and 6 Metro de Santiago
Abstract: Metro de Santiago is developing the most ambitious project in his history, the new lines 3 and 6, which will be completely underground and connecting peripheral of the city through emblematic areas of Santiago (Chile). Two lines together totaling more than 37 km long with a total of 27 stations and 1 station common to both lines. For the tunnels engineering project of these new lines, Metro...
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First results from the excavation of the Lyon-Turin Maddalena Exploratory Tunnel
Abstract: Construction of infrastructure starts well before the actual works begin: detailed studies, investigations, surveys, designs and plans must be carried out and completed beforehand. Field and ground conditions can prove to be different from expected once the works begin. After excavating more than 2000m of the Maddalena Exploratory Tunnel, part of the Cross-Border Section of the New Turin-Lyon...
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Key design issues of lined tunnels and shafts used for compressed air energy storage
Abstract: Energy storage is of growing importance due the increasing exploitation of renewable energy sources of an intermittent nature. Compressed air energy storage (CAES) plants represent an alternative to pumped-storage reservoirs for storing large quantities of energy. The peculiarity of CAES is that gas must be stored under a high pressure (up to 30 MPa) in order to achieve the necessary...
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Cutter Forces Measurement with PLCM© Using Mini Conical Pick: Comparison with the Theoretical and Empirical Models
Abstract: A new portable linear rock cutting (PLCM©) device was developed in the Mining Engineering Department of Istanbul Technical University and supported by The Scientific and Technological Research Council of Turkey (TUBITAK-112M859). In this paper, rock cutting experiments are performed by using mini real-life conical pick with a (PLCM). The conical pick used in this study has an attack angle 45...
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Optimized TBM tunnel solution for the Fehmarnbelt Fixed Link
Abstract: The Fehmarnbelt Fixed Link is a Danish-German project, in the Baltic Sea, providing a direct link by rail and road between the two countries. It will be owned and financed by Denmark, and to be repaid by the users. It is part of the expansion of the Trans-European Transport Network of the European Union (TEN-T), being co-financed by EU funds. It is being managed by Femern A/S, a Danish...
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Hydrostatic Pressure Control at Sanford Underground Research Facility
Abstract: The former Homestake Gold Mine in Lead, South Dakota in the United States is being transformed into the Sanford Underground Research Facility (Sanford Lab) to host a variety of astrophysics experiments deep underground. While operating, Homestake was the deepest underground mine in North America with workings reaching over 2,439 meters deep. With the transformation to Sanford Lab, new...
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A Performance-Based Structural Fire-Resistance Design System for Underground Public Structure
Abstract: The fire-resistance design of underground structures is different from ground structure for they are different in aspects of material, structure, load, fire scenario and so on. But, at present, the fire-resistance design of underground structure is mainly conducted taking standards of ground structure as reference, which cannot fulfill the requirements of fire resistance of underground...
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Water pressure free design for an infrastructure of parking
Abstract: Depending on the central square underground parking of Yitian town in the Shenzhen of Guangdong province in China and for the harmonious development idea, the practical problems and solved method have been introduced during the design and construction process considered environment, engineering safety and economic benefit, etc. The underground parking has two layers which are located above the...
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Preliminary studies for the new metro tunnel beneath the Palais du Midi, Brussels
Abstract: The ambitious project of transformation of Brussels Tramway lines 3 and 4 to Metro lines leads to the realization of a 170m-long mined tunnel, to be excavated a few meters underneath the “Palais du Midi”, an historical building built in the 19th century and for which the stability must be insured during and after the excavations. The tunnel will connect the future Constitution Station,...
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Fuzzy risk matrix as a risk assessment method – a case study
Abstract: First planning works concerning the development of underground means of transport in Warsaw date back to 1925. The developed plan assumed constructing two metro lines – one in the north-south, second in the east-west corridor. In 1950s, the government decided about the construction of the deep metro, located 20 to 50 m under the surface. The metro was planned to fulfil in the first place the...
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Design of Only Fibers Reinforced Concrete Segments
Abstract: The Fibre-Reinforced Concrete (FRC) is a composite material made of basic concrete in which a homogeneously distributed fibre reinforcement is incorporated and homogeneously distributed. Fibre’s addition in concrete controls plastic and hydraulic shrinkage cracking, considerably improves the concrete post-cracking behaviour. Steel fibres have been used in precast segment tunnel linings (which...
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