RU211848U1 - WALL RING WITH A BOTTOM OF THE WELL WITH SLEEVES FOR PIPE PASSAGE - Google Patents

Abstract

The utility model relates to public utilities, in particular to the wells of external engineering networks, and can be used in the construction of wells and chambers of external engineering networks of water supply, sewerage, heating networks and other networks. The wall ring with the bottom of the well, with sleeves in the wall ring for the passage of pipelines, is a solid-cast reinforced concrete structure in the form of a hollow body of a cylindrical shape with a uniformly protruding bottom along the entire diameter of the wall ring. EFFECT: improved operational characteristics of the well, in particular, simplification and reduction of the time of installation of the well, prevention of well floating, increased strength, increased impermeability from groundwater.

Description

The utility model relates to prefabricated reinforced concrete structures used in the construction of wells and chambers of external engineering networks (water supply, sewerage networks, etc.), which can be mounted both in the area of green spaces and on the carriageway of streets.

Prefabricated reinforced concrete structures of wells of engineering networks of wall rings and bottom slabs according to series 3.900.1-14, GOST 8020-2016, utility model patent PM 157000 are known. Wall rings are mounted on a reinforced concrete wall ring with a cement mortar bottom, if necessary, in several rows. A floor slab is mounted on them and then the neck of the well. The weak point of the design of such wells is their joints and the places where pipelines pass through the walls of the wall ring. Holes and installation of sleeves in the places where the pipeline passes through the wall of the wall ring are carried out on site. When performing work on the arrangement of holes in the wall of the wall ring, cracks may form. The space between the wall of the hole made in the wall ring and the installed sleeve, as a rule, is sealed with concrete or cement mortar. For the subsequent work on laying networks, it takes some time for the freshly laid concrete to acquire sufficient strength.

Known design of the well according to patent US 4801417 A1. The proposed model differs from the well according to US 4801417 A1 as follows:

1) The product is molded not upside down, but in the installation position.

2) This proposal allows you to mold not only the bottom base with channels, but at the same time the wall ring with the bottom and sleeves in one pour.

3) In this product, not only holes can be formed in one plane, but at the same time, sleeves can be immediately installed in different planes, of different diameters from different materials.

4) The proposed model contains a uniformly protruding part of the bottom relative to the outer wall of the wall ring, which makes it possible to give the well greater stability, reliability, allows to obtain, due to the protruding part of the bottom, a more durable and hermetic device in the places where pipes pass through the walls of the well, perceiving emerging stresses due to uneven settlement of the pipeline and the well, hydraulic shocks and thermal elongation of pipes.

The closest technical solution is a plastic well, having the design of the lower part of the plastic well, prefabricated or welded (http://zhilkomsnab.rf/products/sewer systems/plastic wells/, http://www.polimerco.ru/kolodcy). The welded plastic well is hermetic and does not let ground water through. But since it has a low weight, its lower part must be loaded, otherwise it will float. As a rule, the lower part is loaded with reinforced concrete. The disadvantage is also the low bearing capacity from vertical loads, therefore, a protective reinforced concrete slab must be mounted on the roadway above the well (SP 40-102-2000 paragraph 6. 8. 2.) In addition, the cost of a plastic well is higher than a reinforced concrete well.

To eliminate the above disadvantages, a technical solution is proposed, in which the design of the well for external engineering networks contains a wall ring with a bottom, with sleeves installed in the wall ring, made as a single unit. A wall ring with a bottom can be made with sleeves for pipes of specific dimensions, at different heights of the ring, from different sleeve materials: steel, plastic and others. This proposal will allow abandoning the device of holes and sleeves in the wall ring of the well in construction conditions.

Advantages achieved as a result of the proposed technical solution:

- ensuring the tightness of the lower part of the well in the places where pipelines pass from the penetration of groundwater;

- reduction of terms of laying engineering networks;

- no additional devices and parts are required to prevent the well from rising up;

- the possibility of wide use of this technical solution at any reinforced concrete plant;

- the cost of a well with a wall ring with a bottom is much lower than a plastic one.

The technical result is an improvement in the operational characteristics of the well.

The technical result is achieved by the design of the well, containing the lower wall ring with a bottom made of reinforced concrete, characterized in that the wall ring with a bottom, with sleeves for the passage of pipelines, is made in one piece, eliminating the need to perform work on the object to fill (sealing) the space between the wall of the wall ring in the hole and the sleeve with a sealing material: concrete, cement mortar or other materials, while the bottom diameter evenly protrudes beyond the wall ring.

The essence of the technical solution is explained by the figure, which shows a wall ring with a bottom in the section, where:

1 - wall ring with a bottom,

2 - sleeves for the passage of pipes,

Dvn - inner diameter of the wall ring,

Dn - outer diameter of the wall ring,

Ддн - bottom diameter

Implementation example.

A wall ring with a bottom and sleeves in the wall ring is made in a metal mold consisting of a metal pallet on which sliding metal sides are fixed with devices for fastening sleeves for the passage of pipelines. To form an internal cavity in the form of a cylinder, a removable metal core with a diameter of Dvn is installed on the sides, which determines the inner diameter of the cylindrical surface of the wall ring, which, after compaction of the concrete mixture and a short exposure, is removed from the concrete body. Before pouring the concrete mixture, reinforcement and sleeves are installed in the metal mold. The product in the metal mold is placed in the steaming chamber. After the heat treatment cycle, the metal mold is removed from the chamber and, when the product has cooled down, is removed from the metal mold.

Thus, the wall ring with a bottom, with sleeves for the passage of pipelines, is a one-piece reinforced concrete product, ensures the stability of the well, high strength on the carriageway, prevents the well from surfacing, increases the tightness in the places where pipeline sleeves pass through the walls of the wall ring.

Claims (1)

A wall ring with a well bottom, which is a solid-cast reinforced concrete structure in the form of a hollow body of a cylindrical shape with a uniformly protruding bottom along the entire diameter of the wall ring, characterized in that sleeves for the pipeline are made in the wall ring.

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