Stope
In mining, the stope is a ledge that is cut into the bottom of the adit or excavation cavity. In tunnel construction , the bench is a rock ledge that is located between the upper vault (dome) and the lower part of the tunnel wall (abutment) with certain tunneling techniques.
Bench construction
The so-called Strossenbau , which is about the resin was used widely until the early 19th century, one was seigerer or tonnlägiger shaft propelled down. During the shaft jacking, the ore vein was excavated from the section of the shaft that had just been excavated on both sides on heels, the butts or stops.
Tunneling
In tunneling degrades the same manner as in mining the rock below the produced first upper part of the dome towards the bottom of the reduction is in this case in front of the working face divided into one or more benches.
Web links
Individual evidence
- ^ Strosse in the German dictionary by Jacob Grimm and Wilhelm Grimm. 16 vols. [In 32 partial volumes . S. Hirzel, Leipzig 1854–1960]
- ^ Wilfried Liessmann: Historical mining in the Harz . 2nd Edition. Springer Verlag, Berlin – Heidelberg – New York 1997, ISBN 3-540-62930-0 , pp. 59 .
- ^ Tunnel construction in Meyer's Large Conversation Lexicon 1905