SU950851A1 - Retaining structure - Google Patents

Description

(54) SUPPORTING FACILITIES

one

The invention relates to hydraulic construction and can be applied when extending existing dams.

Water supporting structures are known, including a concrete dam and a dam of ground materials adjacent to its lower face.

Water-supporting structures are also known, including a concrete dam, a dam of ground materials adjacent to its lower face and a stackable part of the dam 2.

A disadvantage of the known structures is the possibility of loss of stability of the concrete dam with increasing hydrostatic load after the dam build-up.

The aim of the invention is to increase the stability of the dam.

This goal is achieved by the fact that the supporting structure, which includes a concrete dam, an adjacent dam made of local materials and a stackable part of the dam, is provided with an anti-filtration element located on the lower edge of the dam, and a layer of filter material is placed between the anti-filtration element and the lower edge of the dam, which communicates with the upstream.

FIG. Figures 1 and 2 show transverse sections of the dam.

The water-supporting structure includes an existing concrete dam 1 with an earth dam 2 from its lower edge and a stackable part of the dam 3. Between

, 0 a part of the lower edge of the concrete dam and the anti-filtration element 4 is laid a layer of filter material 5, which is connected to the upper pool of the dam or directly (Fig. 2) or by means of pipes 6 (Fig. 1). At the same time between the upper part of the existing dam 1 and the base of the expandable part of the dam 3 an impervious element 7 is made, and the end of the waterproof screen 4 is embedded in the concrete tooth 8 of the interface with an anti-filter curtain 9 arranged at the base of the dam 2. The extensible part of the dam can be made known method, for example, in the form of a concrete dam (Fig. 1), a dam of local materials (Fig. 2) or other structures.

Claims (1)

Claim A retaining structure, including a concrete dam, a dam of soil materials adjacent to its lower face and an expandable part of the dam, characterized in that, in order to increase stability, the retaining structure is equipped with an anti-filter element located on the lower edge of the concrete dam, with a layer of filter material placed between the anti-filtration element and the bottom face, which is in communication with the upper pool.