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Multi-Utility Tunnels Old-fashioned or Necessary? Analysis of - - PowerPoint PPT Presentation

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Multi-Utility Tunnels Old-fashioned or Necessary? Analysis of Environmental Engineering Factors that Create the Potential for Improving the Technical State of the Underground Infrastructure of Urban Areas Cezary Madryas Faculty of Civil

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Multi-Utility Tunnels

Old-fashioned or Necessary?

Analysis of Environmental Engineering Factors that Create the Potential for Improving the Technical State of the Underground Infrastructure of Urban Areas

Budapest, 3rd September 2018

Cezary Madryas

Faculty of Civil Engineering

  • f Wrocław University
  • f Science and Technology
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  • Introduction
  • General Remarks on Multi-Utility Tunnels
  • Case Study of Multi-Utility Tunnels
  • Conclusions

Plan of presentation

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Why am I discussing this problem?

  • because in 2000 the urban population of the planet exceeded 50 %,

which is why we have to place more technical infrastructure in the underground space of cities.

  • there is a dynamic development of trenchless methods, especially

tunnelling, microtunneling and the relining of sewage tunnels with a large cross section:

  • this offers a less disruptive implementation of new investments,

and helps to overcome natural obstacles (e.g. rivers), as well as already existing structures,

  • this creates new opportunities for increasing the application of

multi-utility tunnels and also lets investors who administrate underground infrastructure networks in cities consider their widespread use.

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Total Population 1950 2.5 mld 2000 6.25 mld Urban Population 1900 13% 2000

  • ver 50%
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It is known, however, that a city without a developed underground infrastructure has no future

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  • Basements and underground garages
  • Network infrastructure
  • Automobile tunnels and underpasses for pedestrians
  • Commercial buildings and other services
  • Underground facilities for the metro, tram and rail
  • Laboratories and special purpose buildings
  • Tanks and storage (gases, liquids and solids)
  • Buildings and military facilities
  • Cemeteries and burial
  • Other….

The main elements of the underground infrastructure of urban areas

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Underground cities

This is not known

Fantasy or a real need in the near future?

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What is one of the

most important technical barriers

for the development of the underground infrastructure of urban areas?

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Chaos in the network Infrastructure and its localization

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Where to look for technical solutions to solve the problem ?

Among others, in the construction

  • f multi-utility tunnels and the integration
  • f infrastructure networks

to free up space for other underground structures

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Multi-utility tunnels: a) Paris, b) Madrid

1 – brick wall, 2 – concrete, 3 – sewer, 4 – space for cables, 5 – water pipes, 6 – electroenergetic cables

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A multi-utility tunnel made in an open trench

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Making space for an underground garage – a concept

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Microtunneling

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View of the TBM machine

used in Warsaw for the installation

  • f a multi-utility tunnel under the Vistula river
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  • Integrates underground networks and lowers costs during a

structure’s complete service life.

  • Makes underground space available to other structures.
  • Provides better maintenance conditions for pipes and

conduits (suitable temperature and humidity, elimination of: static loads from soil, dynamic loads from means of transportation, impact from mining operations, corrosive impacts of the soil-water environment on the pipes, etc.).

  • Allows faults in current networks and their sections to be

repaired without the use of trenches.

Selected benefits resulting from the use of multi-utility tunnels

Benefits of using multi-utility tunnels:

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The annual cost of traffic jams in million zlotys according to Deloitte

Rzeczpospolita 14 stycznia 2011

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Failures of pipelines laid underground – the intensification of traffic difficulties

http://investmap.pl/wiadomosci/wielka-awaria-wodociagowa-we-wroclawiu,6185.html http://www.iswinoujscie.pl/artykuly/15631/

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Main characteristics

  • f the multi-utility tunnel

under the Vistula river in Warsaw

Tunnel: Inner diameter = 4500mm, lenght = 1.3 km Internal pipes: 2 x GRP DN 1600, PN 6

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Diagram of tubing and the view after prefabrication

The building has been designed as a reinforced concrete structure made

  • f tubings using a TBM.
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Starting chamber

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Exit chamber

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The biggest multi-utility tunnel in the World

The SMART Tunnel

StormwaterManagement AndRoad Tunnel

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The SMART Tunnel in Kuala Lumpur

S-252 and S-253 | SMART | Kuala Lumpur| Malaysia 2x Mixshields TBM: 13,210mm Length of tunnel: 9,35 km Geology: limestone, sand, marble

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The SMART Tunnel in Kuala Lumpur

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The SMART Tunnel in Kuala Lumpur

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Maybe this is the best solution to the presented problems?

Someone will ask: What is the role of this car on this small island? It is the beginning of future problems.

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Used to develop the presentation’s graphic materials:

  • wn drawings and photographs of objects,
  • Die Zukunft liegt unter uns.

Bauen und Leben unter der Erde, CCH Hamburg, 1997 Drawings and photographs of objects made available to the author by:

  • Prof. Ray Sterling (Trenchless Technology Center, Louisiana Tech.

University),

  • Hobas Polska,
  • Herrenknecht A.G.,

Publicly available materials on the Web.

Thank You Very Much!