No document
Search & filter
Search for a publication
Search & filter
World Tunnelling Congress
WTCThere are 1984 documents.
-
Numerical analysis in mixed face conditions: the Lyon metro line B extension project
Abstract: The Metro line B extension of Lyon (France) is a key project for the future development of the city. This line will connect the South Hospital complex to the rest of the conurbation. The project involves approximately 2.5 km of bored tunnel with a diameter of 9.7 m running from the existing Oullins Station to the future station, close to the Lyon South Hospital complex. The alignment is mostly...
0,00 € -
Methodology and analysis for the automatic tunnel deformation detection based on 3D LiDAR point cloud
Abstract: The tunnel deformation monitoring methodology based on 3D LiDAR (Light Detection and Ranging) data shows broad application prospects in recent years due to the high- quality of acquired massive data. The proposed methodology provides a clear processing flow and comprehensive analysis result with adequate accuracy mainly by three parts: data acquisition, data processing and result analysis....
0,00 € -
Interactive geotechnical characterization with GIS and 3D geo-model applied to Lyon’s metro project
Abstract: Nowadays, considering the development of BIM in the engineering world and the amount of data to be processed, a new approach for the geotechnical studies is necessary. This paper presents a method mixing old school site observations, an online cartographic web application and a 3D modeling software, both connected to a geodatabase for the purpose of underground projects.
0,00 € -
”Cut and Cover” tunnel in swelling soil
Abstract: The paper presents the design and research efforts made for the carrying out of a competitive and optimal solution for Turdas tunnel. The tunnel passes through alluvial deposits with clays and powders at the upper part, sand and gravel with water in the middle part and swelling clay marl at the lower part. Two methods and structural solutions ”Cut and Cover” and ”Cover and Cut”, are analyzed...
0,00 € -
Innovation on Site Investigation for a High Potential Gas Inflow Tunnel in Taiwan
Abstract: Natural gases are a commonly acknowledged hazard to construction of tunnels. Combustible gases from the ground can mix with air in the excavation to form an atmosphere that can explode in a low gas concentration level. Gases occur in a wide variety of geologic conditions so detailed investigation is necessary. A new gas concentration detection system with FTIR spectrometer is proposed and...
0,00 € -
Design and Optimization of the 8.800 long Bossler Tunnel for the Highspeed Railway Line Stuttgart
Abstract: In the course of the extension of the new railway line Wendlingen-Ulm, the Boßler Tunnel is to be excavated in planning approval section 2.2 "Albaufstieg", as a two-tube, single-jacket tunnel with a length of 8.806 m between Aichelberg and Mühlhausen. The contract for the construction of the new high-speed road was awarded to the working group "Tunnel Albaufstieg" by the Deutsche Bahn...
0,00 € -
Precast tunnel segment: experimental tests of longitudinal joints
Abstract: A recently completed research project at the Chair of Concrete Structures of the Technical University of Munich focused on the design of longitudinal joints of reinforced segmental linings, aiming to improve current design regulations. The results of the experimental program showed that the formulation of partial loading in Eurocode 2 for the ultimate limit state (ULS) is conservative for...
0,00 € -
A new approach for the prediction of TBM penetration rate based on Particle Swarm Optimization (PSO)
Abstract: Artificial intelligence methods have been used in numerous research works to propose a TBM penetration rate prediction model. In this study, a combination of particle swarm optimization (PSO) technique and learning automata is used to propose a TBM penetration rate model. These techniques are used to assess the feasibility of developing a prediction model based on field data collected from...
0,00 € -
Interceptor along the Emscher – Successful implementation of a major project for the structural transformation in the...
Abstract: A railway station in the south, an airport in the east and a philharmonic hall in the north – in the course of the debate on these projects gained the impression Germany couldn´t manage major projects. A look to the west shows that´s not true: The Water Management Association Emschergenossenschaft plans and implements the conversion of the mega project Emscherrenaturation since 1992....
0,00 € -
Raise Boring Machine performance in the Yusufeli Dam and HEPP Project
Abstract: Performance of a Raise Boring Machine (RBM) used in Yusufeli HEPP project in Turkey is evaluated in this study. The depth and diameter of the energy shaft are 130 m and 2.44 m, respectively. The drill core samples were obtained from the site (diabase and granodiorite) and compressive strength, tensile strength, static elasticity modulus and Poisson’s ratio, dynamic elasticity modulus and...
0,00 € -
A conceptual study on the development of an underground metro rail system in the Kathmandu Valley, Nepal
Abstract: This paper highlights the need for the metro rail development in the Kathmandu Valley and sets out the economic and technical opportunities for such development. A map of the proposed railway network for the Kathmandu Metro is presented. The concept of cross-rail in Kathmandu and the prospect of developing a network of underground rail tunnels beneath the city is discussed. The region is...
0,00 € -
Box Tunnel under XVII-th century arch Trujillo Bridge in Lima (Peru)
Abstract: As a result of the urban growth of Lima in recent years and increase in private transport, traffic jams are commonplace. In order to relieve this congestion, a new highway connecting Callao district and the Historical Centre is currently being built. Due to the lack of available space and given that the Historical Centre is UNESCO World Heritage, a tunnelling solution underneath a 1,8km of...
0,00 € -
The largest tunnel in freshly consolidated soft soil: Tuen Mun Chek Lap Kok Link tunnel project, Hong-Kong
Abstract: The Northern Landfall, part of the Tuen Mun Chek Lap Kok Link tunnel project, is a large reclamation on very soft Marine Deposits and Alluvium, inside which two large-diameter tunnels are to be bored. The realization of this challenging, world-record-holding project implies the use of consolidation under surcharge, to give the compressible soils enough strength to withstand the excavation of...
0,00 € -
Application of an Electric Rock Breaking method to mitigate vibration during tunnel blasting
Abstract: Vibration mitigation of a drill and blast excavation is one of the main issues in urban tunneling, and various preventive techniques have been tried so far. A pre-cut excavation method introduced in Lee, . (2016) is an alternative to reduce the blasting vibration although the preparation time of the additional cut should be shortened in field application. Another technique was investigated in...
0,00 € -
Cross passage construction in soft soil by RCC Box pushing in MRTS
Abstract: After construction of two 1.67 Km long and 5.9 m Internal diameter twin bored tunnels, to connect Nizammudin to Ashram station in the phase-III expansion plan of Metro network, in New Delhi, five Cross Passages needs to be excavated to connect both tunnels as per NFPA guidelines. The ground consists of alluvium, associated with the Yamuna River, belonging to the Pleistocene, a very fine silty...
0,00 € -
The influence of constitutive models on the mechanical behavior of conventional shallow overburden tunnel
Abstract: Due to the topographic and route conditions along the Bullet Train lines in Japan, a number of shallow overburden tunnels were excavated in unconsolidated ground using the New Austrian Tunneling Method (NATM). However, ground and tunnel settlements frequently occurred due to the low stiffness of the ground. In the current study, a typical Shinkansen tunnel section with different overburden...
0,00 €
