Sealing openings in abandoned mines by pneumatic stowing

समान संसाधन

• Building seals by pneumatic stowing in mine closure operations
  द्वारा: Maksimovic, S. D.
  प्रकाशित: (1982)
• Blind pneumatic stowing in voids in abandoned mines /
  द्वारा: Sands, Paul F.
  प्रकाशित: (1990)
• The precision of the moisture condition test /
  द्वारा: Parsons, A. W.
  प्रकाशित: (1987)
• Crushing techniques for pneumatic concentration of mica /
  द्वारा: Smith, C. W. (Carl W.)
  प्रकाशित: (1982)
• Inverted pyramid-shaped plugs for closing abandoned mine shafts : Galena, KS, demonstration project /
  द्वारा: Dressel, W. M. (Waldemar M.)
  प्रकाशित: (1985)