RU1791520C - Spillway lower pond blanket - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to hydraulic engineering, and in particular, to structures of spillway structures with a water hole, side walls, apron, and a bucket filled with stone. The purpose of the invention is to increase the efficiency of downstream fastening behind a catchment. The downstream mount is spillway:.: Of the building consists of a water stand with side walls, an apron, a transverse vertical wall protruding above the surface of the apron, dividing elements installed perpendicular to the transverse vertical wall at a certain distance from each other. New in the fastening is the location of the crests of the transverse vertical wall above the surface of the apron and the installation of perpendicular to the transverse vertical wall of the separation elements — for a certain distance, they are friends. This eliminates the washing out of the base of the transverse vertical wall with asymmetric opening of the gates of the spillway structure and the low flow failure at the apron and apron, improves the efficiency of the downstream fastening, reduces the length of the apron and reduces the cost of fastening the lower downstream by 10-15%. 2 ill. (/) WITH

Description

The invention relates to hydraulic engineering, and in particular, to structures of spillways with a water hole, side walls, apron, and a bucket filled with stone.

The purpose of the invention is to increase work efficiency.

Fig. 1 is a cross-sectional view of a spillway structure and the downstream fastening thereof; Fig. 2 is a diagram of a spillway structure and a downstream fastening behind it in plan view from above.

The downstream attachment consists of a water base 1 with side walls, an apron 2, a transverse vertical wall 3, a bucket 4, a stone outline in a bowl 5. The crest 6 of the transverse vertical wall 3 is made protruding above the surface of the apron 2 to a height (0.1-0.3 ) b | k. On the downstream side, longitudinal dividing elements 7 are installed perpendicular to the transverse wall 3. The distance between the longitudinal dividing elements 7 is (2-3) h k, and their bottom length is (0.8-0.9) h1 k, where h1 k is the height of the side walls of the waterway.

When the ridge 6 of the transverse vertical wall 7 protrudes above the surface of the apron 2, the transit flow deviates upward and below

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With a vertical vertical wall 7, a large horizontal roll is formed, reducing the bottom velocities to non-washing away stone outline 5 in the bucket 4 and the bed of the speed channel. The longitudinal dividing elements 7 split and direct the transverse flows of water in the bucket 4 arising from the asymmetric opening of the gates along the flow, reduce the erosion ability of the flow, and increase the efficiency of the downstream attachment to the spillway.

The proposed technical solution for attaching the downstream downstream of the spillway increases the efficiency of the downstream fastening, reduces the length of the apron and reduces its cost by 10-15%.

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F o rmula. Inventions A downstream fastener for a spillway structure, including a spout with side walls, an apron, a transverse vertical wall installed at the end of the apron, and a stone draft bucket, characterized in that, in order to increase operational efficiency, the crest of the transverse vertical wall is protruded above the surface aprons to a height of (0.1-0.3) h1 K, where h1 K is the height of the water side walls, and longitudinal dividing elements are installed perpendicular to the transverse wall from the downstream side, while hundred between the spacers is equal to (2-3) iv to, and their base length (0,8- 0,9) hV

FIG. 1

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