RU57305U1 - TEST WELL OF ENGINEERING NETWORKS AND ITS COVER - Google Patents

Abstract

The design of this well can be used in the construction of round wells of underground pipelines for sewer, water, gas and other engineering networks. Wells can be mounted in the green area and on the roadway. This application proposes a new design of a well cover for engineering structures. The well cover is either reinforced concrete or polymer concrete with the recommended non-metallic reinforcement of the surface layer of the cover and is a cylinder having falling loops designed to lift and move the cover. The technical result achieved as a result of this technical solution: - improving the quality of inspection wells; - increase frost resistance of the upper part of the wells; - increase the durability of wells; - improving the reliability of mounting cast-iron hatches; - elimination of blockages in sewer networks, increasing the safety of gates and gate valves by replacing brickwork with additional reinforced concrete or polymer concrete rings and eliminating spontaneous falling of bricks from the upper zone of inspection wells. - interchangeability of cast-iron manholes with a reinforced concrete or polymer concrete cover and vice versa.

The manhole consists of: a bottom plate, wall rings, floor slab, neck wall ring, support ring, additional rings, sub-base support rings interconnected in the above sequence; and a cast-iron hatch or reinforced concrete / polymer concrete with the recommended non-metallic reinforcement of the surface layer of the lid, installed in the hatch support ring. All structures, except for reinforced concrete or polymer concrete, with the recommended non-metallic reinforcement of the surface layer of the lid, cast-iron lid and inner lid are mounted on a cement-sand mortar.

Description

The design of this well can be used in the construction of round wells of underground pipelines for sewer, water, gas and other engineering networks. Wells can be mounted in the green area and on the roadway.

A well-known design of a well for engineering networks of water supply and sewerage according to standard design documentation

- TPR 901-09-11.84 "Water wells."

- TPR 901-09-22.84 “Sewerage wells”.

Series 3.300.1-14 "Reinforced concrete products for round water and sewer wells." Issue 1.

The closest is the technical solution of the well elements included in the series 3.300.1-14 "Reinforced concrete products for round water supply and sewage wells".

The well according to this standard documentation consists of a bottom plate, wall rings, floor slab, neck ring, support ring, leveling brick layer and a cast-iron hatch.

As practice has shown, the design of the upper part of the well was not reliable and durable. The leveling masonry as a result of numerous freezing and thawing, inherent in most of the territory of Russia, collapses, bricks break, crumble, fall down.

Cast iron hatches, which are based on brickwork, lose their support, heel, the well goes down. As a result of the loss of bricks, sewer pipes become clogged, valves and gate valves fail.

The technical result achieved as a result of this technical solution:

- improving the quality of inspection wells;

- increase frost resistance of the upper part of the wells;

- increase the durability of wells;

- improving the reliability of mounting cast-iron hatches;

- elimination of blockages in sewer networks, increasing the safety of gates and gate valves by replacing brickwork with additional reinforced concrete or polymer concrete rings and eliminating spontaneous falling of bricks from the upper zone of inspection wells.

- Interchangeability of cast-iron hatches for reinforced concrete / polymer concrete cover and vice versa.

The technical result of the proposed utility model when using the new design of the well is achieved due to the fact that:

- masonry is replaced by additional reinforced concrete or polymer concrete rings, which increases the frost resistance and durability of the well;

- the thickness of the wall rings of the neck of the well increases, thereby increasing the adhesion area between the individual reinforced concrete or polymer concrete elements, as well as the adhesion forces between them. Due

this well acquires greater stability and can withstand heavy loads;

- the ratio of the wall thickness to the inner diameter is in the range "

- for wall rings of the neck of the well from 1/10 to 3/14;

- for the support rings of the neck of the well from 13/58 to 21/58;

- for additional rings of a mouth of a well from 1/10 to 3/14;

The above ratios allow the most economical and appropriate use of reinforced concrete or polymer concrete products depending on the location of the well (lawn, sidewalk, road) and the loads on the well, while maintaining the necessary requirements for strength, frost resistance, and durability. For example:

On the lawn, it is recommended to use products with the ratio:

- for wall rings - 1/10;

- for supporting rings - 13/58;

- for additional rings - 1/10.

On the road, it is recommended to use products with the ratio:

- for wall rings - 3/14;

- for support rings - 21/58;

- for additional rings - 3/14.

- the cast-iron hatch is not mounted on masonry, but on the hatch support ring, which has a larger bearing area than the cast-iron hatch and is made in the form of two mating cylinders: the upper and lower;

- the cast-iron hatch is fixed by the upper mating cylinder of the hatch support ring;

- the hatch support ring is designed in such a way that its geometrical dimensions allow the installation of either a cast-iron hatch or a reinforced concrete / polymer-concrete well cover in the hatch support ring.

This application also proposes a new design of a well cover for engineering structures. The well cover is either reinforced concrete or polymer concrete with the recommended non-metallic reinforcement of the surface layer of the cover and is a cylinder having falling loops designed to lift and move the cover.

The manhole consists of: a bottom plate, wall rings, floor slab, neck wall ring, support ring, additional rings, sub-base support rings interconnected in the above sequence; and cast iron manhole or reinforced concrete / polymer concrete, with the recommended non-metallic reinforcement of the surface layer of the lid installed in the hatch support ring.

All structures, except for reinforced concrete / polymer concrete cover, cast-iron cover and internal cover are mounted on cement-sand mortar M-100.

To increase the stability of the neck of the well, the wall thickness of the neck rings has been increased. New reinforced concrete / polymer concrete elements are introduced into the construction of the manhole: sub-hockey support ring, additional rings. Due to the increase in the area of bearing of the hatch support ring and the upper mating cylinder of the hatch ring increases

stability and reliability of mounting a cast-iron hatch on the neck of a manhole.

In the event of a breakdown or loss of a cast-iron hatch, a reinforced concrete / polymer concrete well cover is installed on the undercut support ring.

The reinforced concrete / polymer concrete cover is lifted and moved by falling loops.

The upper plane of the axillary support ring is divided by depressions that fall below the upper plane of the lower mating cylinder of the axillary support ring. The gap formed between the lower edge of the cavity and the bottom of the reinforced concrete / polymer cover allows sampling for gas contamination of the well and to separate the reinforced concrete / polymer cover from the submarine support ring in case of freezing.

To increase the strength, frost resistance, water resistance of reinforced concrete products, it is recommended to use plasticizing, hydrophobizing and other additives, or to manufacture products with polymer concrete. Products included in the construction of a well can be either reinforced concrete or polymer-only, or any combination of reinforced concrete and polymer-concrete products. It is recommended to install non-metallic reinforcement in the surface layer of the reinforced concrete cover and the undercut support ring, and protect the outer surface with a waterproofing composition.

Figure 1 shows the design of the inspection well, closed with a cast-iron hatch, where:

1. The bottom plate.

2. Wall rings.

3. Floor slab.

4. The wall ring of the neck.

5. Support ring.

6. Ancillary ring.

7. Inner cover.

8. Hatch support ring.

9. Cement-sand mortar.

10. Cast iron hatch.

Figure 2 shows the design of the inspection well, closed reinforced concrete / polymer cover of the well, where;

1. The bottom plate.

2. Wall rings.

3. Floor slab.

4. The wall ring of the neck.

5. Support ring.

6. Ancillary ring.

7. Inner cover.

8. Hatch support ring.

9. Cement-sand mortar

10. Reinforced concrete / polymer concrete well cover.

11. The falling loop.

Implementation example: The inspection well of utility networks consists of a bottom plate PN10, two wall rings KS 10.9, a floor slab PP10-2 in the series 3.300.1-14, a wall neck ring, a support ring, three additional rings, a sub-base support ring,

a cast-iron manhole with a cover, or a reinforced concrete / polymer concrete well cover. Reinforced concrete elements mounted above the floor slab must have a concrete class in strength of at least B22.5; concrete grade for frost resistance is assigned at the design stage depending on climatic conditions, but not less than F100. The outer surface of the hatch support ring and the reinforced concrete manhole cover is protected by a waterproofing composition.

Claims (4)

1. The inspection well of engineering networks, consisting of individual elements: bottom plates, wall rings, floor slabs, neck wall rings, leveling layers, where the elements are joined together by cement-sand mortar, and on top of the well is closed with a removable lid, characterized in that the wall the neck of the well is made in the form of a reinforced concrete or polymer concrete cylinder with a round hole in the center, with a ratio of wall thickness to internal diameter ranging from 1/10 to 3/14; the support ring of the neck of the well is made in the form of a reinforced concrete or polymer concrete cylinder with a round hole in the center, with the ratio of the wall thickness to the inner diameter ranging from 13/58 to 21/58; the leveling layer is made of additional rings in the form of reinforced concrete or polymer concrete cylinders with a round hole in the center, with the ratio of the wall thickness to the inner diameter ranging from 1/10 to 3/14; an additional hatch support ring with a round hole, which rests on the upper additional ring, is additionally introduced into the structure; the sub-hockey support ring is made in the form of two cylinders interconnected, either reinforced concrete or polymer concrete with reinforcing the surface layer with fiberglass, fixing a cast-iron hatch, or a well cover; the upper plane of the axillary support ring is divided by depressions that fall below the upper plane of the lower mating cylinder; the upper horizontal face and the outer vertical face of the subluxe support ring are made at right angles or with a bevel of faces. 2. The cover of the manhole of utility networks is made in the form of a cylinder, characterized in that it is made of reinforced concrete or polymer concrete with falling loops. 3. The cover of the inspection well of engineering networks according to claim 2, characterized in that the cover is made with additional reinforcement with a fiberglass. 4. The cover according to claim 2 or 3, characterized in that it contains external waterproofing.