AN ARTIFICIAL RETAINING DAM OF COAL MINE UNDERGROUND RESERVOIR AND METHOD FOR CONNECTING SECURITY COAL PILLAR, SURROUNDING ROCK WITH THE RETAINING DAM
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United States of America Patent
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Issued Date -
Jun 23, 2016
app pub date -
Apr 10, 2014
filing date -
Aug 14, 2013
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Abstract
The present disclosure provides an artificial retaining dam of coal mine underground reservoir. The artificial retaining dam (30) is embedded into a security coal pillar (2) and surrounding rock (3) around an auxiliary roadway (1), the cross section of the artificial retaining dam (30) is an arc, and a concave of the arc artificial retaining dam (30) faces the underground reservoir. The disclosure also disclosed a method for connecting a security coal pillar, surrounding rock, and an artificial retaining dam for a coal mine underground reservoir. The retaining dam improves sliding-resistant performance of an artificial retaining dam, and can effectively cushion the impact to the dam bodies due to suddenly increased water pressure.
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