REPAIR METHOD FOR UNDERGROUND PART OF HYDRAULIC STRUCTURE Russian patent published in 2005 - IPC

FIELD: hydraulic engineering.

SUBSTANCE: method involves isolating zone to be repaired from water by placing hydraulic gate; drying isolated hydraulic structure surface and performing repair thereof. Before hydraulic gate installation contact area is formed along contact line between hydraulic gate and hydraulic structure surface by securing U-shaped frame on hydraulic structure surface. Dimensions of U-shaped frame correspond to that of hydraulic gate. Peripheral edge of intermediate frame facing hydraulic structure surface is congruent to above surface along contact line between intermediate frame and above surface for instance by placing packing in gap extending along the contact line. Opposite surface of intermediate frame is previously shaped so that above surface is congruent with outline of hydraulic gate edge to be joined to it. Hydraulic gate edge is brought into contact with contact area surface facing the gate and is joined to it. Hydraulic gate edge contacting with edge of intermediate U-shaped frame is flat and made as a belt with width exceeding gate wall thickness. The packing inserted in the gap is sleeve of water-impermeable synthetic flexible material, for instance of polyethylene in which hardening synthetic material or pressurized gas and/or liquid are introduced and retained after intermediate U-shaped frame fixation.

EFFECT: increased simplicity of area to be repaired isolation.

4 cl, 4 dwg