Dec 19, 2012 10:28
11 yrs ago
1 viewer *
French term

pilliers perdus

French to English Tech/Engineering Geology gypsum extraction
En Provence, son extraction se faisait autrefois dans des carrières à ciel ouvert ou également
en galeries étayées, peu profondes appelées tannes, à piliers perdus.

Discussion

Jonathan MacKerron Dec 19, 2012:
found this Dans la technique d’exploitation à piliers perdus, des piliers
du matériau doivent être laissés en place selon une trame
en damier afin de supporter les couches supérieures

Proposed translations

6 hrs
Selected

room and pillar mining

common mining term, see Wikipedia for a description. The pillars are left in place (lost to the extraction process) to support the back (roof)
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4 KudoZ points awarded for this answer.
+1
21 mins

lost column

"c. perdida, lost column ; (7) in winning mineral deposits, pillar which is subsequently removed "
http://www.archive.org/stream/dictionaryofspan00halsrich/dic...
Peer comment(s):

neutral liz askew : trouble is, nothing on any English sites with this
14 mins
agree Salih YILDIRIM
23 mins
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43 mins

temporary pillars

search term in the PDF, but still just a guess on my part

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Note added at 45 mins (2012-12-19 11:13:57 GMT)
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http://www.gutenberg.org/files/26697/26697-h/26697-h.htm
Example sentence:

http://www.gutenberg.org/files/26697/26697-h/26697-h.htm

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44 mins

pillar and stall method

Gypsum - RitchieWiki
www.ritchiewiki.com/wiki/index.php/gypsum
24 Nov 2009 – Extraction of gypsum deposits is accomplished through opencast mining or underground mining using the pillar and stall method. Gypsum ...

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Note added at 49 mins (2012-12-19 11:18:07 GMT)
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Towards Biodiversity Stewardship in Gypsum Quarrying ... - skillsup
www.skillsup.eu/pdf/biodiversity_brochure_pics.pdf
File Format: PDF/Adobe Acrobat - View as HTML
30 Jun 2009 – Protection of the Iberis Linifolia (France – Lantosque, Alpes Maritimes). ... Promotion of Wildlife (UK – Gypsum Way, Gotham). .... Gypsum is produced from open-cast mines, or underground mines using pillar and stall mining ...
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11 hrs

left in place pillars

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Reference comments

25 mins
Reference:

further context

http://www.deco-verone.com/du platre au gypse.html


¨ L'extraction du gypse ou pierre à plâtre a lieu en général en carrière à ciel ouvert, à Clamensane par exemple, et parfois en souterrains horizontaux peu profonds, après le XVIe siècle, les «tannes», à l'aide de piliers-perdus. Exemples au XIXe et au début du XXe siècle : Saint Pérréal dans le Vaucluse, ou les gipières de la colline de la Plâtrière au col de la Mort d'Imbert, à Manosque.
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