SU1446226A1 - Enclosing structure - Google Patents

Abstract

The invention relates to hydraulic construction. The purpose of the invention is to increase the reliability of the structure while simultaneously reducing the volume of work and the cost of the structure by preventing the hydraulic loads from generating the loads occurring at. water level fluctuations in the reservoir. The fencing structure includes a subfloor pore wall 4, placed on the upper slope at the base of which an additional sub wall 5 is installed with the formation of a tank 6 filled with water with a constant water level behind its ridge. Behind the retaining wall and from the rear side also capacity is made. The total working height of both retaining walls is equal to: the value of the c-work of the reservoir. The prevention of the impact on the construction of hydrodynamic loads makes it possible to increase the drawdown depth of the reservoir 1 sludge. I (L

Description

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The invention relates to hydraulic engineering construction and can be used in the construction of earth dams and dams protecting water bodies with regular, rapid and significant fluctuations in water level, such as water storage power plants.

The purpose of the invention is to increase the reliability of the structure while reducing the scope of work and the cost of construction due to the pre-impact on the construction of hydraulic loads arising from fluctuations in the water level in the reservoir.

The drawing shows the protective structure, the cross section.

The barrier structure consists of a bulk dam 1, made with an impervious screen 2 on its top slope. On the non-pressure side of the screen 2 is placed drainage

3, also at the base of the dam. Within the screen, fix the top 4 and additional bottom 5 retaining walls. For the rear rpaiibjo under the POT5NOY wall 5 is formed the area

6 with a constant level | odes.

After filling the reservoir to the level of the dead volume, a one-time filling is carried out, with water, without the additional retaining wall. 5, and then the filling of the reservoir of the normal retaining level continues. In this case, the upper part of the enclosing structure - the dam 1g is protected by an upper retaining wall.

4, remains dry and not exposed to wind waves and ice.

When a water body is drained from a normal retaining level to a dead volume level, the upper part of the structure does not experience hydrodynamic loads either.

Nihn part of the enclosing coupling is sealed from hydrodynamic loads due to the presence of a constant water level in the tank 6 ,. supported by an additional / lower retaining wall 5.

Thus, the proposed design of the enclosing structure, eliminating hydrodynamic loads j arising as a result of fluctuations in the water level in the reservoir, makes it possible to devalue the drawdown depth of the reservoir and the height of the enclosing structure, thereby reducing the area of the reservoir and dugout fencing, which reduces the amount of work and cfo-i reduction. Comparisons of construction with known constructive “1: d solutions, as well as p-ovolzayet reliability of displacement in the excursion.

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25 Ф с рм J, l S оb e-t e n y

An enclosing structure, including a retaining wall located on the slope, is incriminating 3 to those THAT; in order to increase the reliability of the structure while reducing the scope of work i: construction due to the prevention of hydrodynamic loads on the structure when the water level fluctuates in the reservoir, an additional, lower, retaining wall is installed at the base of the uphill slope with the formation of a reservoir beyond its constant level of the tank; On the rear side, the tank has a capacity; the total working height of both retaining walls is equal to the size of the reservoir erection / treatment.

Claims (1)

Claim The enclosing structure, including the retaining wall located on the uphill slope, o ^ ^{, is} characterized by the fact that, in order to increase the reliability of the structure while reducing the amount of work and · the cost of the structure by preventing the impact on the structure of hydrodynamic loads arising from level fluctuations water in the reservoir, at the base of the uphill slope, an additional, lower, retaining wall is established with the formation of a container behind its rear face, filled with constant water, yri beyond the upper retaining wall a capacity was made on the rear wall from the rear side, and the total working height of both retaining walls is equal to the value of the reservoir.