Authors: S. Vöth, A. Depping, A. Nikolaev

Title of the article: Measurement and Calculation of the Characteristics of Compression Elementsfor Mining Supports

Year: 2018, Issue: 2, Pages: 4-12

Branch of knowledge: MINING AND GEOTECHNICAL ENGINEERING

Index UDK: 624.191.81:622.261.2

DOI: 10.26730/2618-7434-2018-2-04-12

Abstract: During tunneling using closed shield machines or open tunnel boring machines, different technologies are used for rock support. Tubbing supports typically consist of several concrete segments. In case of high convergences supports must be able, to avoid too high load effects on themselves. This may be realized by compliance elements like WABE with its characteristic “honey comb” structure. For a lot of these solutions the characteristics of the compression elements were verified in compression tests. The challenge was to develop a tool for the high quality forecast of compression element behavior. A calculation model was developed in order to calculate the force-deflection-characteristics regarding various parameters. The characteristics can be calculated from no deflection of the pipe until maximum deflection (flat pipe). The introduced tool gives new opportunities for the application of compression elements for tubbing systems and arch support systems. The characteristics can be planned exactly according to the requirements regarding rock structure convergence and support system.

Key words: tubbing supports mining support honey comb structure rock convergence

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