Emergency Treatment Technologies for Water Inrush in Frozen Soil Drilling

Жаңалықтар 24 Көріністер
Water inrush in frozen soil aquifers often occurs due to sudden температура rise. water well drilling rig.Emergency measures include:

 

  1. Ice plugging:
    Inject dry ice (-78° °) 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