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List of products by author: G. Höfer-Öllinger
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Approach on Characterizing Karst Aquifers for Tunnel Projects
Abstract: During tunnelling in karst, three main challenges prevail: (a) dewatering and its environmental impact, (b) artificial changes to orographic recharge areas, and (c) problems at the construction site in terms of health and safety, construction time, and cost (Gerstner, 2004). In many European countries, speleological investigations base on volunteer’s work. Over decades accessible caves were...
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Development of a geological model for a base tunnel
Abstract: The 11.25 km long Pir Panjal Railway Tunnel is located in Punjab Himalaya in Kashmir, India. The base tunnel was excavated from 2005 to 2011 and has been in operation since 2013. The geological model was developed in several steps in accordance to the different project stages. During the tender design stage, the preliminary model was completed after geological field mapping. At this stage, the...
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Innovative management of geological data as a tool for safe tunnelling
Abstract: The construction of a tunnel in hard or soft ground requires adaptation to the material provided by the prevailing geological conditions, whose history of origin, properties, three-dimensional structure and groundwater conditions all have to be taken into account. Geologists at the site work within a team of experts. Their job is to observe and to evaluate the encountered geological,...
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