Emergency Treatment Technologies for Water Inrush in Frozen Soil Drilling

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Water inrush in frozen soil aquifers often occurs due to sudden temperature rise. water well drilling rig.Emergency measures include:

 

  1. Ice plugging:
    Inject dry ice (-78°C) into the hole to form a 20cm-diameter ice plug.
  2. Quick-setting grouting:
    Use sulphoaluminate cement (initial setting in 15 minutes) with water glass.
  3. Freezing water stop:
    Arrange 4-6 freezing holes around the hole to form a 1.5m-thick curtain.

After application in Yushu frozen soil area, Qinghai, 3 water inrush accidents were successfully handled with an average treatment time of 48 hours.water well drilling rig