The practice of the flooded fully-mechanized holders reparation

This paper mainly introduces the course of the flooded hydraulic holders peparation.The holders are destroyed seriously because the ceiling pressure is large in addition,injecting oar from ground,which increases the difficulty of the holders peparation.By careful analysis,scientific design and exacting management,the holders have been repaired successfully.That acquires prospective effect,recovers economic loss,gains large economic efficiency and social efficiency.