Grouting for Water-proof of Surface Drilling in Qingfeng Coalmine of Changde
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P634.5

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    Abstract:

    The paper briefly analyzed the hydrogeology conditions and water inrushing factors, and the water-proof plan was established. The division of grouting section, slurry matching ratio in the water-proof grouting procedure and grouting ending standard were discussed.

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History
  • Received:April 02,2011
  • Revised:April 13,2011
  • Adopted:May 24,2011
  • Online: October 28,2011
  • Published: October 25,2011