Stability analysis of a tunnel above mined cavities

This research has been conducted to investigate the influence of mined cavities on a tunnel to be constructed around a coal mine. The location and dimension of cavities were supposed by analysing synthetically geological structures and condition of coal beds as well as gangway map since there does not exist any map describing mined cavities. Detailed geological and geophygical survey have also been carried out for the purpose of understanding the geological structure and rock mass conditions. The two dimensional numerical analysis with FLAC has been performed on the geological sections reconstituted from the obtained information and the affects of mined cavities on the tunnel have been assessed.

keywords: Mined cavity, geological characterization, numerical analysis, Mined cavity, geological characterization, numerical analysis, 석탄 채굴공동, 터널, 지반조사, 수치해석

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Article Contents

Vol.4 No.2

Stability analysis of a tunnel above mined cavities

Abstract

(사)한국터널지하공간학회