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A Rösche is a German mining term that refers ''inter alia'' to a gullet (''Wasserseige''), a trench for draining water in the lower part of a mine gallery. In order to keep the actual gallery entrance (''Stollenmundloch'') free and guard against backflooding the ''Röschen'' were, in many cases, extended to below the entrance or led even further away, underground, to the nearest stream or river.〔Albert Serlo: Leitfaden der Bergbaukunde. Erster Band, Verlag von Julius Springer, Berlin 1869〕 By contrast the term ''Rösche'' was also used to describe the channels or "leats" through which the driving water for mining equipment was led into the pit (''Aufschlagrösche'' or driving water leats) or out of the pit (''Abfallrösche'' or drainage leats).〔E. Treptow, F. Wüst, W. Borchers: Bergbau und Hüttenwesen. Verlag und Druck Otto Spamer, Leipzig 1900〕 Unlike a gallery, a leat will have a gentle incline into the pit. Also referred to as a ''Rösche'' are the tunnel-like sections of mining ditch (''Kunstgraben'') systems. These are not underground structures. In the Harz Mountains of Germany such a tunnel is also known as a ''Wasserlauf''. See Upper Harz Water Tunnels. A recess in the stowage for the extraction of ventilation in mining is called a ''Wetter-Rösche''.〔Walter Bischoff, Heinz Bramann, Westfälische Berggewerkschaftskasse Bochum: Das kleine Bergbaulexikon. 7th ed., Verlag Glückauf GmbH, Essen 1988, ISBN 3-7739-0501-7〕 == References == 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Rösche」の詳細全文を読む スポンサード リンク
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