COAL ENGINEERING ›› 2015, Vol. 47 ›› Issue (1): 18-21.doi: 10.11799/ce201501006

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Technology of Continuous Mining without Coal Pillar for Thin Seam

  

  • Received:2013-11-27 Revised:2014-02-22 Online:2015-01-10 Published:2015-01-10

Abstract: Combined with the practical situation of east flank in mining area No. 9 of Xiandewang Colliery, the technology of continuous mining without coal pillar centralizing in gob-side entry retaining without roadside packing was put forward. Besides, the combination support with function of superpower roof cutting, high resistance transfer pressure and yielding coordination was designed; the support density of single hydraulic prop was calculated. By the relation analysis between face mining and roadway retained support, the arranging construction of mining – retain – maintenance – laying – moving was formed. Practice result has shown that this set of technology realized the continuous and efficient mining and created Considerable economic benefits.

Key words: continuous mining, gob-side entry retaining, superpower roof cutting, support density

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