Synonyms were used for: Space Technology
Search without synonyms: title: Tunnelling and Underground Space Technology

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    Reliability based life cycle cost optimization for underground pipeline networks

    Tee, Kong Fah / Khan, Lutfor Rahman / Chen, Hua-Peng et al. | Tema Archive | 2014
    The safety of underground pipelines is the primary focus of water and wastewater industry. Due to low visibility and lack of proper ...

    Underground or aboveground? Making the choice for urban mass transit systems

    Tema Archive | 2004
    This report has been prepared by Working Group 13 (WG13) of the International Tunnelling Association (ITA). The question addressed in this ...

    Numerical study of the effect of blockage on critical velocity and backlayering length in longitudinally ventilated tunnel fires

    Gannouni, Soufien / Maad, Rejeb Ben | Tema Archive | 2015
    In a tunnel fire, one of the protective strategies of users and vehicles which are blocked upstream of fire is provided by longitudinal ...

    Design and optimization of tunnel hoods

    Liu, Tang-hong / Tian, Hong-qi / Liang, Xi-feng | Tema Archive | 2010
    An obvious pressure change and a micro-pressure wave are generated when a train enters a tunnel at high-speed, which impacts on the comfort ...

    Performance of smoke elimination and confinement with modified hybrid ventilation for subway station

    Luo, Na / Li, Angui / Gao, Ran et al. | Tema Archive | 2014
    engineering of underground subway stations. In this study, an experiment and a numerical simulation were performed to determine the efficacy of ...

    CFD simulation and assessment of life safety in a subway train fire

    Roh, Jae-Seong / Ryou, Hong Sun / Park, Won-Hee et al. | Tema Archive | 2009
    Fire is a major risk in the event of subway train fire due to coincidence with direction of smoke flow and evacuation. As a part of an ...

    Supervised and unsupervised learning DSS for incident management in intelligent tunnel: A case study in Tehran Niayesh tunnel

    Abpeykar, Shadi / Ghatee, Mehdi | Tema Archive | 2014
    are extracted from incident severity database and micro-simulation results. Then simple fuzzy grid technique is applied to generate the rules ...

    Simulation of airflow and pollution levels caused by severe traffic jam in a road tunnel

    Bari, S. / Naser, J. | Tema Archive | 2010
    Computer simulations were carried out to study airflow patterns and pollution levels due to emissions from vehicles for the westbound ...

    A method for design of smoke control of urban traffic link tunnel (UTLT) using longitudinal ventilation

    Du, Tao / Yang, Dong / Peng, Shini et al. | Tema Archive | 2015
    An urban traffic link tunnel (UTLT) typically consists of a looped main tunnel and several adjoining ramp tunnels. This complex network ...

    Use of diffusers materials to improve the homogeneity of sunlight under pergolas installed in road tunnels portals for energy savings

    Gil-Martin, L.M. / Gomez-Guzman, A. / Pena-Garcia, A. | Tema Archive | 2015
    performance and, hence, road safety. In this work, a new solution, consisting on the introduction of a diffuser material in the spaces between beams ...

    Decrease of energy demands of lighting installations in road tunnels based in the forestation of portal surroundings with climbing plants

    Pena-Garcia, A. / Lopez, J.C. / Grindlay, A.L. | Tema Archive | 2015
    allowed in the tunnel, tunnel orientation and the characteristics of the portal gate surroundings. In this work, actions on this last parameter ...

    Modeling subway air flow using CFD

    Camelli, Fernando E. / Byrne, Greg / Löhner, Rainald | Tema Archive | 2014
    A more realistic Computational Fluid Dynamics approach has been developed to model air flow in subway tunnels and stations. This modeling ...

    Empirical approach for real-time estimation of air flow rates in a subway station

    Di Perna, C. / Carbonari, A. / Ansuini, R. et al. | Tema Archive | 2014
    The EU-funded project called SEAM4US (Sustainable Energy mAnageMent for Underground Stations) is targeted to define advanced control ...

    Reflections on Bayesian Network models for road tunnel safety design: A case study from Norway

    Borg, Audun / Bjelland, Henrik / Nja, Ove | Tema Archive | 2014
    . Furthermore, we assess TRANSIT as a tool for decision support regarding the design of new and novel road tunnel designs. The interactions between ...

    Upgrading the Arlberg tunnel to current safety standards

    Sturm, Peter J. / Bacher, Michael | Tema Archive | 2015
    they are in operation, under construction or at design stage, and aims at ensuring a minimum level of safety for road users. One of the main ...

    Characteristics of traffic accidents in Chinese freeway tunnels

    Ma, Zhuang-lin / Shao, Chun-fu / Zhang, Sheng-rui | Tema Archive | 2009
    has been conducted. Temporal distribution characteristics and space distribution characteristics of traffic accidents are summarized. Based on ...

    Full-scale experimental study on smoke flow in natural ventilation road tunnel fires with shafts

    Tong, Yan / Shi, Mingheng / Gong, YanFeng et al. | Tema Archive | 2009
    different locations but its peak release heats were all around 5 MW. Results showed that large amounts of smoke and heat were released through ...

    Effect of tunnel technological systems on evacuation time

    Pribyl, Pavel / Pribyl, Ondrej | Tema Archive | 2014
    In this paper, the authors provide a discussion about technological systems in road tunnels and their effect on the overall time needed for ...

    Analysis of longitudinal profile of the tunnels in the active faulted zone and designing the flexible lining (for Koohrang-III tunnel)

    Shahidi, A.R. / Vafaeian, Mahmood | Tema Archive | 2005
    the allowable longitudinal deflection and/or angular distortion. Besides the design of flexible joints, the longitudinal deformation profile ...

    A stochastic diagnostic model for subway stations

    Semaan, Nabil / Zayed, Tarek | Tema Archive | 2010
    very expensive, the Societe de Transport de Montreal (STM) and most transit authorities lack planning strategies because they do not have ...