FIELD: repair of pile structures with various section and arrangement of piles. SUBSTANCE: gear to repair pile structures of water-development works includes frame open from top with ballast compartments and compacting circuit and plant to withdraw water from frame. Frame comes in the form of opening, tightly interjoined sections and is divided by working platform into upper compartment which is working chamber and lower compartment. Working platform has holes for passage of water into lower compartment of frame. Compacting circuit comes in the form of separable leak- proofing collar corresponding to form of repaired piles located in lower part of frame, below its working platform. Ballast compartments are positioned in lower part of frame. Plant to withdraw water is situated in frame and is able to pump away water from its lower compartment. Frame is equipped with separable means which ensure its buoyancy, are located in upper compartment of frame and are joined to its sections with the aid of fastening members. Locks of static position are installed in upper part of frame. EFFECT: gear provides for possibility to conduct repair operations even in points difficult of access and under restricted conditions without creation any disturbance to running of water-development works. 1 cl, 4 dwg
