METHOD OF CONSTRUCTION A ROCK-FILL DAM IN A RESERVOIR

A method of construction a rock-fill dam in a reservoir in a cross section with a decrease in depth from the middle to the shores consists in arrangement of tiers of toes of rock mass, located at the height of the dam one above the other from the side of its slopes and parallel to its axis, with a cavity between them of rubble in the central part of the dam along its axis, by pouring the rock mass into the water at the toes and rubble into the cavity, after pouring the underwater part of the dam, pouring off the coastal sections of the upper surface part of the dam and making a dumped dam from the crest in its central part and at the base of the antifiltration curtain. On the surface of the reservoir in the dam execution area, by pouring rock mass and rubble into the water, a floating structure fixed by strands on the coastal areas and to the bottom of the reservoir is arranged from interconnected pontoon pipes directed parallel to the axis of the dam, and pontoon pipes directed across the axis, with holes between thereof. On the surface of the floating structure, a system of conveyors is installed above the lower tier of toes along their crest, with the help of which the lower tier of toes is poured into the water by pouring the rock mass into the water. Then the conveyors are moved along the surface of the floating structure to the area above the cavity in the central part of the dam and with the help of conveyors by pouring ballast stone into the water through the holes fill the cavity between the toes of the lower tier. After that, conveyors are moved with the installation of toes along their crest over the next tier, and the process repeats, and after pouring the underwater part of the dam, the floating structure of pontoon pipes is dismantled and the upper surface part of the dam is poured from the side of the coastal areas. Спосіб виконання кам'яно-накидної греблі у водоймі у створі зі зменшенням глибини від середини до берегів складається з ярусів банкетів з гірської маси, розташованих по висоті греблі один над іншим з боку її укосів і паралельно її осі, з порожниною між ними зі щебеню в центральній частини греблі уздовж її осі, шляхом відсипання у воду гірської маси у банкети і щебеню у порожнину, після відсипання підводної частини греблі, відсипання з боку берегових ділянок верхньої надводної частини греблі і виконання з гребеня відсипаної греблі в центральній її частині і в основі протифільтраційної завіси. На поверхні водойми у зоні виконання г