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World Tunnel Congress 2015: 13 themes; experience, knowledge, actuality in world



Preface

The Croatian Association for Tunnels and Underground Structures ITA Croatia and International Tunnelling and Underground Space Association ITA-AITES organize this year together a world tunnel congress 2015. The congress is organized with the title: “SEE Tunnel: Promoting Tunnelling in SEE Region” to develop the use of underground space in the South-East Europe region. Submitted articles are grouped within 13 different themes covering most of important topics presenting nowadays tunnelling experiences. Themes and topics presented herewith are recent international state-of-the-art practice applicable in other countries and in similar geological formations.

Session 1: “Planning and Designing Tunnels and Underground Structures”
The most articles of entire congress submissions are in this session and presenting leading projects worldwide within different project development phases.

Session 2: “Fire Safety of Tunnels and Underground Structures”
Presentation of active and passive fire safety measures and actions taken or planned for tunnels and underground structures in use or design and planning project development phases.

Session 3: “Mechanized Tunnelling in Development and Use”
Numerous submissions about different projects worldwide, new experiences and developments with materials in use and least experiences with new type of machines.

Session 4: “Operation and Maintenance of Tunnels and Underground Structures”
Presented are experiences from numerous projects worldwide as the number of underground structures is raising and as well the required need for their maintenance.

Session 5: “Developments in use of Underground Space: Case Studies”
There are numerous examples of different projects using underground space in completely new, modern  interesting way. Case studies about recent applications are showing new approaches and possibilities of underground space use.

Session 6: “Cost Optimization and Financing of Underground Structures”
Tunnels are known as most expensive civil engineering structures but at the same time are bringing different benefits that are not included in direct construction cost estimations. Some of the examples are presented as well as cost-overruns.

Session 7: “Immersed and Floating Tunnelling”
Application of different crossing locations are presented with specific problems and pertinent solutions, first ideas for the application of IMT technologies on new markets with no previous experience are indicated.

Session 8: “Intelligent Systems, Mechatronics and Robotics in Tunnelling”
Robotics and use of mechatronics technologies is coming more and more on markets and on to applications on underground projects. More and more on machine prototypes are presented and first experiences as well.

Session 9: “Conventional Tunnelling Methods in Development and Use”
Different Conventional Tunneling methods are presented and compared, complicated and special construction solutions are discussed, new conventional methods are presented for the first time over the first experiences.

Session 10: “Urban Planning and Using of Underground Space”
How to start with the use of underground space and how to include underground structures in existing environment  and surrounding is the work of urban planners specialized for underground space: some ideas and applications are showing recent developments.
Session 11: “SEE Session : Soft Ground Urban Tunnelling / Rock Tunnelling in Karst”
Session is dedicated to applications in SEE region and open to all participant with themes that could contribute to application in mentioned formations with existing or new ideas bit as well with experiences from previous projects in similar conditions collected around the world.

Session 12: “ Risk Analyses and Techniques  for Underground Structures”
Risk analysis is the part of design management of underground structure today: whether regarding design, construction, cost or maintenance risk. Case studies and methodologies are presented within the session.

Session 13: “Equipment of Tunnels and Underground Structures”
Equipment as the part of the construction technology is presented as well as equipment of tunnels that enable full tunnel usage and services.
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Foreword

Of the President of the International Tunnelling and Underground Space Assosiation ITA-AITES

Soren Degn ESKESEN


Dear Colleagues and Friends

May 2015 has come and we are now gathering  again for the World Tunnel Conference  this year in beautiful Dubrovnik in Croatia to hold the ITA 41st General Assembly and WTC2015. This year’s topic is “Promoting Tunnelling  in South East Europe“ and gathering the whole ITA family on the Balkan Peninsula will definitely bring a boost of tunnel knowledge and technology to the region.

We see an increasing need for tunnels and underground space not just in South East Europe but all around the world. Wherever I look around the world, there is an increased need for new tunnels and use of the underground space. Tunnels and the use of underground space help our cities to become resilient by transforming surface problems to underground solutions and there by improving living conditions for the citizens by reducing congestion, reducing air pollution and noise and vibrations impacts. We, as tunnellers are also helping our citizens to provide drinking water and clean surface water by providing tunnels for drainage, food control and sewer systems. With the increased growth in the world’s population and urbanisation the need for use of tunnels and undergroundspace will continue to expand. ITA has performed a survey of the development in the global tunnel market. Over a period of 10 years the tunnelling market has shown a steady growth in Europe, North and South America and Australia with a global growth over 5% per yaar during the Iast decade. The major growth has taken place in Asia where the market has increased by approximately 15 times over a 10 year period. New market has developed particular in the Middle East where we now see a huge activity in the tunnelling industry where there were hardly any market 10 years ago.

We therefore see a bright future ahead of us and we want ITA to play an important role in this. For that purpose we have launched the ITA Strategic Plan 2013-2016 which was accepted  by the General Assembly in Iguassu last year. One of the initiatives we took was to initiate an ITA Young Members goup, in order to attract young engineers and scientists to our Association and Industry. With the increased growth we see ahead it is important that we are able to boost our human resources and know how in order to respond to our societies increased demand for the use of he underground. I am pleased that the ITA Young Member group is now very active and will meet in Dubrovnik.

In Dubrovnik, we will hear about all the latest development in technology and human resources as  lessons learnt from projects all around the world. We will meet to hear the latest update, to meet good fiends and to network exchanging knowledgeand increasing our business opportunities. Our working groups and committees will issue their latest reports and will meet actively to progress the works.

I wish you all successful conference and hope you will also get a flair of the Croatian lifestyle and culture along the Adriatic Sea.

Welcome to Dubrovnik.

Copenhagen, April 20th, 2015 
    
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Foreword,
of the President of the Croatian Association for Tunnels and Underground Structures ITA Croatia.
Dr.sc. Davorin KOLIC

Dear Colleagues,
It is our honour to be the host country for the organisation and preparation of the World Tunnel Congress 2015. At the same time it is our responsibility and duty to provide you the best possible conditions and services for your participation and networking that is highly appreciated on the occasion of the congress. We hope to be able to answer your requirements and expectations and we are looking forward to see you in Dubrovnik at the end of May 2015.

Tunnelling  in South-East Europe has a long tradition coming from mining but during the last century the range of mining has decreased seriously. Underground works have been performed in last few decades as tunnelling works on transport infrastructure lines and hydro projects mostly. At the same time most of South-East Europe did not develop the use of underground space in urban areas: there is no subway or underground road  or pedestrian systems in cities of Balkan Peninsula. This is one speciality that at the same time opens opportunities for future investors, clients and contractors.

However, developing one underground Project is not an easy task: it needs knowledge about planning, design, construction, supervision, equipment, financing and maintenance of underground structures.

This congress should be one important step and future milestone in providing missing knowledge about the use of underground space to countries of South-East Europe but as well to all other interested parties or regions where such development is missing as well. It should be the networking place opening contacts and possibilities over business forum core that is the part of the congress.

Welcome to Dubrovnik, the hearth of South-East Europe, the place of your future use underground space.

Zagreb, April 15th, 2015

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