COAL ENGINEERING ›› 2016, Vol. 48 ›› Issue (5): 59-61.doi: 10.11799/ce201605019

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Design and Construction on Large segment Section Face Pre-Grouting and Water Prevention and Control for Water-blocking in the Main Shaft bedrock segment of Shunhe Mine

  

  • Received:2015-04-09 Revised:2015-05-01 Online:2016-05-10 Published:2016-06-15

Abstract: To ensure through the sign K6 sandstone aquifer of Yongxia mine security and efficient, in construction the Main Shaft -565m~-705m bedrock segment of Shunhe Mine , we applyed face large section Pre-Grouting for water-blocking ,in the end ,the hole water inflow reduced to 1.01m3/h or less, achieved remarkable results, create favorable conditions for driving and masonry shaft , wellbore to be safe and smooth off the bottom.

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