Blasting (mining)

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In mining, steps or rough bumps in the bottom of a tunnel are called bursts , or intent . The sudden and sharp rise in the bottom of the tunnel is also referred to as a burst. According to the ancient mountain orders conversation Enge were in the excavation of Erbstollen prohibited and punishable. The mountain foreman of the respective mountain area had to ensure that tunnels and stretches were excavated without blasting.

Origin and impact

When driving tunnels, in order to accelerate the drive, the drive was carried out in the opposite direction . Therefore at certain intervals of light holes up to the level of the lug geteuft and the studs of several pages from further ascended. By incorrect measurements of Mark Scheider could then happen that the excavation of each tunnel places not söhlig or not in the same depth proceeded. At the breakdown location then a paragraph was the single "tunnel sections". The difference in height between the two sections could then be one or more laughs . The level of the sole jumped upwards. That is why the resulting heel in the sole was called a burst. Due to the blast, the tunnel had now been driven incorrectly. Depending on the location of the blast, these could obstruct the drainage of the pit water , which resulted in a deterioration in the drainage of the tunnel. The weather draft was also influenced by the blasts. Blasting was forbidden by the mountain regulations, but a slight rise in the bottom of the tunnel was allowed in the main tunnels for better water drainage in the water bodies.

Individual evidence

  1. ^ A b c d Carl von Scheuchenstuel : IDIOTICON of the Austrian mountain and hut language . kk court bookseller Wilhelm Braumüller, Vienna 1856.
  2. ↑ a b c d e Carl Hartmann: Concise dictionary of mineralogy, mining, metallurgy and salt works. First section A to K, printed and published by Bernhard Friedrich Voigt, Ilmenau 1825.
  3. ↑ a b Explanatory dictionary of the technical terms and foreign words that occur in the mining industry, in metallurgy and in salt works, and technical art expressions that occur in salt works. Falkenberg'schen Buchhandlung publishing house, Burgsteinfurt 1869.
  4. ↑ a b c d Heinrich Veith: German mountain dictionary with evidence . Published by Wilhelm Gottlieb Korn, Breslau 1871.
  5. ↑ a b Johann Christoph Stößel (Hrsg.): Mining dictionary. Chemnitz 1778.
  6. ↑ Curieuse and reales Natur- Kunst- Berg- Gewerck- und Handlungs-Lexicon, published by Johann Friedrich Gleditschens and Son, 1736.