Resilience of Shallow Corrugation Flexible Bridge Structures – Case Study of Bridge Located 800m (2650 Ft) Underground Backfilled with Crushed Salt

The corrugated steel structure has been installed in a salt mine department of KGHM Company. They rank among the world's best producers of silver and copper. The KGHM runs technologically advanced exploration and smelting activities. Polish copper deposits - one of the biggest in the world - are exploited by three underground mines: "Lubin”, "Polkowice-Sieroszowice” and "Rudna”. The extracted material is enriched in the Concentrator Plant, while the production of copper, silver, gold, lead and other metals takes place in smelters: "Głogów”, "Legnica” and "Cedynia”. The mine is located on the south west part of Poland (lower Silesia voivodeship) near Lubin City. Under the ground on the elevation of 1000m there are the copper ore deposits. Ca. 200 m above it there are a huge salt deposit. Working underground is a hard. Temperature raises to +40C (104F), additionally around there is dry salty air and lot of salt dust. This area must be properly ventilated. Underground corridors from copper mine cross with salt one. Polluted air should not mix with the fresh. Corridors cannot touch each other. In such places, when underground corridors cross itself the ventilation bridges are build. In this paper installation of first grade separation will be described.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: 15p

Subject/Index Terms

Filing Info

  • Accession Number: 01763719
  • Record Type: Publication
  • Report/Paper Numbers: TRBAM-21-01667
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 23 2020 11:09AM