Headframes

A headframe(also known as a gallows frame, winding tower, hoist frame, pit frame, shafthead frame, or headgear) is the structural frame above an underground mine shaft. Modern headframes are built out of steel, concrete or a combination of both. Timber headframes are no longer used in industrialized countries, but are still used in developing nations. Traditionally steel headframes are used when a drum hoist is employed, and concrete headframes are built for friction hoists, however a steel headframe can be used with a friction hoist for shafts with a smaller capacity and depth.

From Wikipedia, the free encyclopedia (version june 7, 2012).

4 favorieten en 3 opmerkingen

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• frazerweb
• lddb72
• sethgottlich (Seth Gottlich)
• Vincent Mendret

opmerkingen

• explorerviews.de (Ben) - 12 jaar geleden
  Really nice light shadow play with a good processing.
• bestarns [www.spiritofdecay.com] (Sébastien ERNEST) - 12 jaar geleden
  en effet superbe traitement , quelle ambiance et le cadrage au top comme toujours ;)
• frazerweb - 12 jaar geleden
  Amazing mining shot.

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• Opnamedatum : 07/01/2012 14:32:06 (Europe/Brussels)
• camera : Nikon D7000
• belichtingssnelheid : 1/125 (0.008 sec)
• diaphragma : f/7.1
• ISO-gevoeligheid : ISO 100
• objectief : Sigma 17-50mm f/2.8 EX DC OS HSM
• brandpuntsafstand : 17mm (cadrage équivalant : 26mm)

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