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AN ARTIFICIAL RETAINING DAM OF COAL MINE UNDERGROUND RESERVOIR AND METHOD FOR CONNECTING SECURITY COAL PILLAR, SURROUNDING ROCK WITH THE RETAINING DAM

  • US 20160176639A1
  • Filed: 04/10/2014
  • Published: 06/23/2016
  • Est. Priority Date: 08/14/2013
  • Status: Abandoned Application
First Claim
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1. An artificial retaining dam of coal mine underground reservoir, wherein the artificial retaining dam is embedded into security coal pillars and surrounding rocks around an auxiliary roadway, the cross section of the artificial retaining dam is arc-shaped, and the concave of the arc-shaped artificial retaining dam faces the underground reservoir.

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