FIELD: construction engineering. SUBSTANCE: device can be used for repair of piled structures in hydraulic engineering objects of various cross-section and different location of piles. Device has framework which is open atop and including ballast compartments and sealing-off contour. Also provided is unit for pumping water out of framework. Framework is made up of opening and hermetically interconnected to each other sections and is divided by working platform into upper compartment which represents working chamber and lower compartment. Sealing-off contour of framework is made in the form of removable sealing-off collar corresponding to configuration of piles being repaired. Sealing collar is located in lower part of framework below its working platform. Water pumping out unit is arranged directly inside framework in its lower compartment. Ballast compartments are located over perimeter of framework. Installed above ballast compartments are air compartments which ensure floatability of framework. Mounted in upper part of framework are locks of static position. Working platform is made with holes for passing water into lower compartment of framework. Aforesaid embodiment of device allows for its simple operation with carrying out repair operations even in hard-to-reach locations without hindrance to normal functioning of hydraulic engineering structure. EFFECT: higher efficiency. 6 dwg
