RU2541633C1 - Water retaining dam - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: water retaining dam comprises a stepped weir, a supply and a drain sections. There are plunged basins in the stepped weir, as well as side abutments to couple top and bottom abutments. There is a retaining structure built in on the inlet section of the stepped weir. The retaining structure comprises matched coaxial hollow semicylinders with a common axis of rotation. The inner rotating semicylinder is divided into sectors by links. The external semicylinder is in static position and is built into the weir body by a flat face aligned upwards. The inner semicylinder is tight and filled with water from upper reach. Semicylinders are emptied by water self-flow into the lower reach.

EFFECT: increased efficiency of retaining structure operation reliability.

3 dwg

Description

The invention relates to hydraulic engineering and can be used as water and adjustable structures.

Known flexible mating structure [1], containing inlet, spillway and outlet parts. It is a one-piece flexible structure, consisting of a prefabricated spillway with a metal channel crest, to which reinforced concrete ponur adjoins from the upper pool, and reinforced concrete water drainage from the lower pool.

The disadvantages of this technical solution are:

- this technical solution is inefficient to use as a retaining structure.

The closest technical solution is a water dam [2], which includes a support structure in the form of worn tires, a soft waterproof material, a concrete flatbet, and anchor devices. A rigid element is installed in the plane of attachment to the flute bet, and in the upper part there are rigid power belts. The waterproof panel is attached to the end surface of the tire with flexible pads and metal brackets. The disadvantages of this technical solution are:

- low maneuverability in work;

- high cost of operation;

- difficulty in manufacturing and unreliability in operation.

The purpose of the invention is to increase the efficiency of reliability.

This goal is achieved by the fact that on the site of the river or channel a step difference is arranged, having a supply section and a discharge section (Figs. 1, 2). A retaining structure consisting of coaxial internal half-cylinder and external half-cylinder is built-in at the input section of the step difference. The inner rotating half-cylinder is divided into sectors, and the outer half-cylinder is in a static position and is built into the body of the flatbet with a flat face oriented upwards. The inner half cylinder is sealed and filled with water from the upper pool. When sequentially emptying the sectors of the inner half-cylinder and filling the niches of the outer half-cylinder with water, the inner half-cylinder, rotating around the axis, rises and is brought into working position and is rigidly fixed. By emptying the niche of the inner half-cylinder and filling the outer half-cylinder with water under its own weight, the retaining structure, rotating around its axis, is lowered and brought back to its original position (Fig. 3). In this position, the flow of flood discharge is carried out on mountain rivers. Half-cylinders are emptied by gravity drainage of water into the downstream, which is ensured by a high-altitude arrangement. Thus, the water dam is fully hydraulically automated and this makes the structure maneuverable. The stepwise differential to extinguish the energy of a falling stream of water has water wells, lateral abutments and mating upper and lower abutments. The length of the fortified part of the riverbed or flatbet is determined from filtration calculations. The depth of the water well is determined from the condition of extinguishing the energy of the water stream when the flood discharge is skipped.

Figure 1 shows a water-retaining dam in a working retaining position, a cross section; figure 2 is the same, a top view; figure 3 - water-retaining dam at the time of discharge, a cross section.

The water support dam consists of a step difference 1 of the inlet section 2 and the outlet section 3. At the inlet section 4 of the step difference 1, a retaining structure 5 is constructed, consisting of an inner half cylinder 6 and an outer half cylinder 7 rotating around axis 8. The inner half cylinder is divided into sectors 9 by jumpers 10 . At the step difference 1 there are water wells 11, lateral abutments 12 and mating upper 13 and lower abutments 14.

A water dam is constructed and operates as follows. On the site of the river or channel, a step difference 1 is arranged, having a supply section 2 and a discharge section 3 (Figs. 1, 2). At the input section 4 of the step difference 1, a retaining structure 5 is built up, consisting of coaxial inner half cylinder 6 and outer half cylinder 7. The inner rotating half cylinder 6 and the outer half cylinder 7 are coaxial and have an axis of rotation 8. The inner rotating half cylinder 6 is divided into sectors 9 by jumpers 10, and the outer half-cylinder 7 is in a static position and is built into the body of the flatbet with a flat face oriented upwards. The inner half cylinder 6 is sealed and filled with water from the upper pool. When sequentially emptying sectors 9 of the inner half cylinder 6 and filling the niches of the outer half cylinder 7, the inner half cylinder 6, rotating around axis 8, rises and is brought into working position and is rigidly fixed. By emptying the niche of the inner half cylinder 6 and filling the outer half cylinder 7 with water, the retaining structure 5 is brought to its original position (Fig. 3). Half-cylinders are emptied by draining the water downstream. At the step difference 1 to quench the energy of the incident water stream there are water wells 11, lateral abutments 12 and mating upper 13 and lower abutments 14.

The stepped design of the water-retaining dam allows automating the filling and emptying of half-cylinders without energy costs, while possessing good maneuverability.

Such a constructive solution is effectively used on clean mountain rivers in recreation areas for organizing mass recreation.

Information sources

1. RF patent No. 2256025, IPC E02B 8/06. Flexible mating structure / Khashirova T.Yu. Claim 03/22/2004. Publ. 07/10/2005 (Analog).

2. RF patent No. 2026458, IPC E02B 7/02. Water Dam / Zhuk V.V., Shvedovsky P.V. Pchelin V.N. Claim 04/15/1991. Publ. 09.01.1995 (Prototype).

Claims (1)

A water-retaining dam, including supporting elements and a retaining structure forming a retaining and drain surface, characterized in that a retaining structure is arranged at the input section of the step differential flush bet, which is a combined coaxial hollow half-cylinder with a common axis of rotation, the inner rotating half-cylinder is divided into sectors, and the outer the half-cylinder is in a static position and is embedded in the body of the flatbet with a flat face oriented upwards, while the inner half-cylinder is sealed and filled I am water from the upper pool, the emptying of the half-cylinders is carried out by lowering the water into the lower pool.

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