Abstract: The construction of the whole shaft deep freezing after thawing in the freeze wall to freeze and freeze-hole annular space outside the tube can easily become a lead water channel, a serious threat to mine safety.

Summary: To use the deep freezing of the construction works of the wellbore wall in freezing, freezing after thawing frozen pipes, holes with annular spaces are vulnerable to water channels, import grubensicherheit serious threat.

Abstract: Uses the entire deep freezing process construction the well chamber after to freeze the wall to defrost, outside the freeze hole and the freeze tube annulus is extremely easy to become leads the pass of water, threatens the mine safety seriously.

Summary: the use of all-deep mine shaft freezing construction in frozen wall after thawing, freezing bore hole and freezing tube outer annular space could easily become a conductor, a serious threat to mine safety.

Abstract: The construction of the whole shaft deep freezing after thawing in the freeze wall to freeze and freeze-hole annular space outside the tube can easily become a lead water channel, a serious threat to mine safety.