Optimisation of Road Tunnel Ventilation Systems

Optimisation of Road Tunnel Ventilation Systems PDF Author: P. J. Baker
Publisher:
ISBN:
Category :
Languages : en
Pages : 7

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Book Description

Optimisation of Road Tunnel Ventilation Systems

Optimisation of Road Tunnel Ventilation Systems PDF Author: P. J. Baker
Publisher:
ISBN:
Category :
Languages : en
Pages : 7

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Book Description


The Aerodynamics and Ventilation of Vehicle Tunnels

The Aerodynamics and Ventilation of Vehicle Tunnels PDF Author: B. R. Pursall
Publisher: Bhra Fluid Engineering
ISBN:
Category : Science
Languages : en
Pages : 260

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Road Tunnel Ventilation

Road Tunnel Ventilation PDF Author: Petr Pospisil
Publisher: P-I Pospisil Ing.
ISBN: 9783952417843
Category :
Languages : en
Pages :

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Book Description
The ventilation system is an important element for the safety of a tunnel, as well as its investment and operating costs. Investors, operators and designers of road tunnels bear a responsibility for the safety of persons, as well as for important investment decisions. The new Road Tunnel Ventilation Compendium fosters understanding of basic aspects of ventilation in the context of tunnel safety, describes the actual state of the art and shows how to design and realise safer tunnels, at lower costs, with reliably functioning systems.

The Assessment of Road Tunnel Ventilation Systems

The Assessment of Road Tunnel Ventilation Systems PDF Author: S. T. Jones
Publisher:
ISBN:
Category :
Languages : en
Pages : 109

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Tunnels and Underground Cities: Engineering and Innovation Meet Archaeology, Architecture and Art

Tunnels and Underground Cities: Engineering and Innovation Meet Archaeology, Architecture and Art PDF Author: Daniele Peila
Publisher: CRC Press
ISBN: 1000175588
Category : Technology & Engineering
Languages : en
Pages : 403

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Book Description
Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art. Volume 9: Safety in Underground Construction contains the contributions presented in the eponymous Technical Session during the World Tunnel Congress 2019 (Naples, Italy, 3-9 May 2019). The use of underground space is continuing to grow, due to global urbanization, public demand for efficient transportation, and energy saving, production and distribution. The growing need for space at ground level, along with its continuous value increase and the challenges of energy saving and achieving sustainable development objectives, demand greater and better use of the underground space to ensure that it supports sustainable, resilient and more liveable cities. The contributions cover a wide range of topics, tunnel inspection analysis, via risk assessment for maintenance planning and civil engineering constraints on tunnel ventilation and safety, to CFD simulations of longitudinal ventilation of a road tunnel. The book is a valuable reference text for tunnelling specialists, owners, engineers, archaeologists, architects, artists and others involved in underground planning, design and building around the world, and for academics who are interested in underground constructions and geotechnics.

A Review of Methods of Ventilating Road Tunnels

A Review of Methods of Ventilating Road Tunnels PDF Author: H. J. Hignett
Publisher:
ISBN:
Category : Tunnels
Languages : en
Pages : 40

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Aerodynamics and Ventilation of Vehicle Tunnels

Aerodynamics and Ventilation of Vehicle Tunnels PDF Author: Alex Haerter
Publisher:
ISBN:
Category : Tunnels
Languages : en
Pages : 988

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Road Tunnels

Road Tunnels PDF Author:
Publisher:
ISBN: 9782840601777
Category : Air
Languages : en
Pages : 72

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Book Description
In 1990 and 1995, PIARC published the calculation methodology and the emission factors for road tunnel ventilation design. An update of the existing PIARC methodology was necessary, as the emission standards of the vehicles were becoming more stringent and hence the vehicles cleaner. The old version described the emission situation up to the year 1995. This document has been produced by Working Group 2 of the PIARC Technical Committee on Road Tunnel Operations in the framework of its activities btween 2001 and 2003. Due to a steady tightening of emission laws for vehicles and changes in the risk assessment of tunnel fire, some design data may need constant updating. In this publication, new design information and some references are given for sizing longitudinal and transverse ventilation systems.

Innovation in TBM Traffic Tunnels

Innovation in TBM Traffic Tunnels PDF Author: Silvino Pompeu-Santos
Publisher: CRC Press
ISBN: 1000847209
Category : Technology & Engineering
Languages : en
Pages : 256

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Book Description
Tunnel Boring Machine (TBM) constructed tunnels are widespread, and can deliver significant environmental and cost benefits. However, as noted in the noteworthy examples of TBM traffic tunnels presented in this book, there are still important challenges associated with them, linked in particular to structural safety in the event of earthquakes, as well as cost and safety issues during operation. To face these challenges, Innovation in TBM Traffic Tunnels presents three innovative concepts in the field of construction of TBM rail and road tunnels: the TISB concept that improves the structural safety of those built on soft soil in seismic areas, and the TMG and TMF concepts, for rail and road tunnels, respectively, that allow for significant reduction of their cost and the improvement of safety during operation. Examples of the application of these new concepts in the conceptual design of specific tunnel cases are presented and compared with solutions based on common approaches, demonstrating the additional benefits of these concepts. The book also draws attention to other innovations in TBM tunnelling that may improve the construction of tunnels in the future, especially when using the concepts mentioned above. Innovation in TBM Traffic Tunnels is aimed at professionals involved in the planning, design, and construction of tunnels for transport infrastructure, including authorities, consultants and construction companies, worldwide.

Recent Advances in Urban Ventilation Assessment and Flow Modelling

Recent Advances in Urban Ventilation Assessment and Flow Modelling PDF Author: Riccardo Buccolieri
Publisher: MDPI
ISBN: 303897806X
Category : Science
Languages : en
Pages : 448

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Book Description
This book contains twenty-one original papers and one review paper published by internationally recognized experts in the Atmosphere Special Issue "Recent Advances in Urban Ventilation Assessment and Flow Modelling", years 2017–2019. The Special Issue includes contributions on recent experimental and modelling works, techniques, and developments mainly tailored to the assessment of urban ventilation on flow and pollutant dispersion in cities. The study of ventilation is of critical importance, as it addresses the capacity with which a built urban structure is capable of replacing the polluted air with ambient fresh air. Here, ventilation is recognized as a transport process that improves local microclimate and air quality and closely relates to the term “breathability”. The efficiency with which street canyon ventilation occurs depends on the complex interaction between the atmospheric boundary layer flow and the local urban morphology. The individual contributions to this Issue are summarized and categorized into four broad topics: (1) outdoor ventilation efficiency and application/development of ventilation indices, (2) relationship between indoor and outdoor ventilation, (3) effects of urban morphology and obstacles to ventilation, and (4) ventilation modelling in realistic urban districts. The results and approaches presented and proposed will be of great interest to experimentalists and modelers, and may constitute a starting point for the improvement of numerical simulations of flow and pollutant dispersion in the urban environment, for the development of simulation tools, and for the implementation of mitigation strategies.