SU1172984A1 - Film-concrete clothing for slopes of structures - Google Patents

Description

The invention relates to hydraulic engineering and can be used in the construction of protective mounts and waterproof clothing for slopes of canals and ponds. 5

The purpose of the invention is to simplify the design and increase work efficiency.

The drawing schematically depicts concrete film clothing, a transverse section of the South. .

Concrete-wrap clothing of slopes of hydraulic structures includes prefabricated reinforced concrete slabs 1, gasket from roofing felts 2, waterproof 15 layer of flexible film 3, trenches 4, filled with coarse-grained material with a rigid drainage sector element 5 and perforated walls of the front 20 6 and rear 7, inside which is placed a flat shutter 8, which is mounted on hinges 9 in the center of the hard drainage sector element. Glass mat 10 is laid on the wall of the trench and on the front wall 625 of the rigid drainage element 5. The metal mesh 11 is concreted to the individual facing plates of the gluing site 12.

The device operates as follows.

With a high standing of groundwater or with a sharp discharge of water in the structure, excessive hydrodynamic pressure occurs, exceeding the hydrostatic pressure in the channel. Water, creating excess pressure, squeezes the flat shutter 8 and penetrates through the perforated rear wall 7 into the drainage device 5 and exits through the perforated front wall 6 into the trench 4, which is filled with stone and pebble bedding, from which it flows freely through the metal mesh 11, 45 bathroom to separate cladding tiles in the structure.

When there is no excess pressure from the side of the perforated rear wall 7, the flat shutter 8 under its own weight and under the influence of hydrostatic pressure of the water in the channel is tightly pressed against it, thereby preventing the filtering of water from the channel.

Concrete-film clothes perform 55 as follows.

After preparation of the base and arrangement of the trench, a flexible film 3 is laid out along the slope, on top of which a continuous layer is spread only up to 2 to the trench. A film strip is laid in the trench 4, and a rigid drainage sector element 5 with perforated walls of the front 6 and rear 7 is installed so that the flat shutter 8, mounted on a hinge 9 in the center of the hard drainage sector element, fits tightly against the perforated back wall 7. To the upper and lower parts of the hard drainage sector element, the film panels are glued.

In order to prevent water leakage under the slab to the bottom of the slope, the film panel is glued to the side face of the plate and the film panel removed from the trench 4 is glued to it. Then, the trench 4 is filled with stone and pebble material, having previously been laid on the base of the trench wall and on the perforated front wall 6 of the rigid drainage sector element 5 of the glass mat 10, to protect the film from damage and ingress of pebble dust, silt, sand inside the sector element.

In order to prevent the drainage of stone and pebble gravel from creeping out and not being washed out of the seam, and also to prevent the cladding plates from sliding down the slope over the construction seam, a metal mesh 11 is concreted to the individual cladding plates.

Rigid sector drainage 5 elements can be made of metal, concrete, reinforced concrete, polymeric materials, they are performed in sections, taking the length of each section 1.5-6 m, depending on the standard sizes of the plates used. The proposed concrete-film clothing of hydraulic structures provides a more efficient drainage of groundwater due to a hard drainage sector element with a valve device.

Along with this, the construction technology is greatly simplified and the cost of the structure is reduced, as well as the free drainage of groundwater is ensured, which helps prevent plate overburden by excessive hydrodynamic pressure with high standing groundwater or with a sharp discharge of water in the structure.

Claims (2)

. 1. CONCRETE FILM CLOTHING FOR SHOES OF HYDROTECHNICAL STRUCTURES, including a drainage system, an anti-filter screen from a flexible film, reinforced concrete slabs, characterized in that, in order to simplify the design and increase work efficiency, it is equipped with a flat shutter on a hinge in the center of the drainage system, made hard sector element. 2. Clothing pop. 1, characterized in that on top of the construction seam between the individual cladding plates installed a metal mesh.