Numerical calculations for the pre-dimensioning of the support lining in a ventilation shaft
A ventilation shaft in Germany is part of a former colliery and was put into operation in the late 19th century with a depth of approx. 600 m. Since the colliery was closed down, it has been part of the central water drainage system at the site, together with further shafts in the near distance. In the course of technical reconstruction measures, the shaft is to be converted from a ventilation shaft to a well shaft. For this purpose, the current diameter has to be expanded to a clearance of 3.3 m. The shaft, which was previously constructed with approx. 50 cm thick brick masonry, will be secured with a concrete shell after expansion. To evaluate the predimensioning of the shell, a numerical modeling of the secondary stress field is necessary.
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Anna Düngelhoff
Anna Düngelhoff successfully completed her apprenticeship as an office administrator after her vocational diploma.
She worked in different companies and developed her soft skills in different working areas.
In March 2013 she joined the ITASCA Consultants GmbH in Gelsenkirchen and supports the ITASCA Team in the field of administration and accounting.
Itasca Symposia
EUROCK 2022
The conference will feature two main tracks: the scientific track and the industrial track. The presentations will be arranged in general and parallel sessions over two days. There will be short courses and workshops on the day preceding the conference and excursions to sites of interest on the day following the conference.