Program > Keynote Lectures
Program > Keynote Lectures
Prof. Raymond Sterling (Louisiana Tech University, USA)
From the 1960s and 1970s onward, the range of underground facilities being built and the need to consider human acceptance in their design expanded greatly both in China and elsewhere around the world. Today, land pressures and urban quality of life issues are pushing many cities globally to plan for a more systematic and expanded use of the underground. What can we learn from some of the examples of modern underground facilities that now have more than 20-40 years of operating experience? Are they fulfilling their intended purpose and do users or occupants accept the underground environment? What has been the experience with technical issues such as waterproofing, humidity, energy use? This could focus attention in new designs on the issues that have been problematic in the past. The presentation will provide information currently being gathered from facilities across China and on assessments from published literature on a variety of types of facilities worldwide.
Prof. Aurèle Jean Parriaux (Swiss Federal Institute of Technology, Switzerland)
Up to now, the DEEP-CITY methodology was applied to different cities around the world. In all cases the geographical context corresponded to rather low altitude areas. Recently the Bagnes Community contacted us to start a DEEP-CITY operation in the famous ski station of Verbier. In such a case, the environmental context is very different:
-Altitudes comprised between 1400 and 1800 m
-Cold climate in winter
-Steep slopes submitted to erosion and landslides
-Very difficult geological conditions due to the alpine collision
-High standard of tourism, very high price of land for building.
Another important characteristic is the seasonal variation of population, between 10000 and 60000 inhabitants. This affects the infrastructures that must be designed for such fluctuations.
A multidisciplinary team was constituted to perform this research. Geologists to edit a 3D geological model and to define the matrix of parameters that characterize each geological volume below the station. Then hydrogeologists to optimize groundwater protection in relationship with construction projects and urban water management. A specific difficulty is the presence of tectonic slices of gypsum inside a series of carboniferous schists that develop karstic conduits and caverns below the station. Another important challenge is the valorization of excavation material of rather deep constructions due to the high price of land. High warming capacity is needed during cold winter. The entire geothermic potential will be evaluated by energy specialists with the different technologies (geothermal probes and geostructures, deep borehole to get thermal water).
The optimization of these different potentials will lead to urbanistic long-term management plan, design of district warming infrastructures, incitements for building that will be operated by the technical services of the Bagnes Community.
Dr. Johan Visser (Institute for Transport Policy Analysis, Ministry of Infrastructure and the Environment, Netherlands)
In this presentation Johan Visser discusses the developments in automating freight movement. Developing an infrastructure underground for automated freight movements could speed up these developments and supports the sustainable development of our society. He will present the long term forecasts for freight movement and will explain why the combination of electrification and automation of freight movement and putting it underground is a sustainable solution. It can reach a level of sustainability which is not possible with traditional freight transport and automated ways of transport, like drones and automated trucks. He will focus on the movement of containers to and from ports and the use of underground freight transport in urban areas. This will be illustrated with examples from the Netherlands, USA and China.