RU2374398C1 - Sewage well and method for repair of water disposal system wells - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention is related to the field of sanitary engineering. Sewage well comprises cast iron set, tray part and bottom. Besides it comprises cone support, vertical pipe that serves as well shaft, telescopic part, sealing ring. Well bottom with tray part serves as foundation for cone support, into which vertical pipe is inserted. At the same time cone support, vertical pipe and telescopic part are made of plastic, and sealing ring is made of rubber. Method for repair of water disposal system wells includes dismantling of well slab with cast iron set. At the same time at well bottom with tray part they mount sewage well, rings of repaired wells serve as curb, space between rings and vertical pipe of new well is filled by sand with layerwise compaction.

EFFECT: reduced labour expenses and material inputs in process of installation.

3 cl, 1 dwg

Description

The technical solution relates to underground structures, mainly sewer wells, their repair and maintenance.

Known designs of sewer wells, including rings, mainly reinforced concrete, a cast-iron kit (saddle and cover), the tray part and the bottom of the well. The depth of the well is up to 6-8 m (1, 2).

As a result of operation, a significant part of the wells breaks down and acquires the following defects:

1. Horizontal displacement of rings, covers, cast-iron sets, destruction and displacement of control rings.

2. The destruction of the material of the well, stairs and brackets due to corrosion.

3. The tight connection of the cast-iron kit, pavement and the well itself under conditions of heavy traffic and loads from heavy vehicles leads to accelerated destruction of the pavement and the well.

The above leads to emergencies in drainage networks, an increase in industrial and domestic injuries, traffic accidents, to an increase in material costs and a decrease in the standard operating time, and a decrease in the operational characteristics of road surfaces.

Repairing such wells is fraught with significant difficulties and limitations. Existing methods for repairing reinforced concrete sewer wells require a significant investment of time and material resources, a high degree of mechanization of the process (tongue, excavator, truck crane, bulldozer), a drainage device and a bypass line with pumping drains, a significant restriction or closure of vehicles.

The task of the solution (the well and the method of its repair) is to develop a well made of plastic, and the technical result is to reduce labor costs and time, significantly reduce material resources during installation and use of mechanisms.

For this purpose, a well design is proposed, including a pipe, a cast-iron kit (saddle and cover), a well bottom with a tray and characterized in that the sewer well, including a cast-iron kit, a tray part and a well bottom, contains a conical support, a vertical pipe serving as a well trunk, the telescopic part, the sealing ring, and the bottom of the well with the chute part serves as the basis for the conical support into which the vertical pipe is inserted.

The solution is illustrated by a drawing of the general view of the well, the numbers indicate: 1 - conical support, mainly made of plastic, 2 - vertical pipe, 3 - telescopic part, 4 - cast iron kit, 5 - road surface (for example, asphalt), 6 - o-ring, 7 - sand filling, 8 - wall of the defective well of the existing type, 9 - bottom of the well with the chute part of the well, 10 - collector.

Thus, the sewage well (see drawing), including a cast-iron kit 4, the tray part 10 and the bottom of the well 9, contains a conical support 1, a vertical pipe 2 serving as the well trunk, a telescopic part 3, an o-ring 6, and the bottom of the well with a tray part serves as the basis for the conical support into which the vertical pipe 2 is inserted.

The sewer well is characterized in that the conical support, the vertical pipe, the telescopic part can be made of plastic, and the o-ring made of rubber.

The sewer well is also characterized in that the diameter of the conical support is equal to the inner diameter of the well bottom, the support is sealed with mounting foam with concrete pouring to a height of 100-150 mm, and a vertical pipe is inserted into the upper part of the conical support with a sealing ring.

A method of repair (maintenance / restoration) of sewer wells using a new technology and a new design of the well is proposed.

Repair (maintenance / restoration) in the existing sewage system provides:

- partial or complete blocking of traffic;

- a device for pumping waste fluid along a bypass line with overlapping the manifold with pneumatic plugs;

- opening of the pit in the roadway;

- Replacement of destroyed reinforced concrete rings;

- restoration of waterproofing, filling with sand the repair site;

- restoration of the road surface (for example, asphalt);

- dismantling of pneumatic plugs.

In the proposed method of repair (maintenance / restoration) of wells, reinforced concrete rings of a repaired well serve as a formwork, and the bottom of the well with a chute part is used as the base of a mounted new design of a smaller diameter plastic well.

Overlapping the well with a cast-iron kit is dismantled. A plastic element is mounted on the bottom of the well with the chute part in the form of a cone support (in the form of a truncated cone) 1, the lower part of the cone is equal to the inner diameter of the well bottom and is sealed with mounting foam with concrete pouring to a height of 100-150 mm, in the upper part of the cone with a diameter of 400 mm with a rubber seal (O-ring) a vertical pipe (wellbore) 2 is inserted from a plastic pipe. A telescope (telescopic adapter) 3 is inserted into the wellbore, into which a cast-iron kit 4 is pressed.

The main advantage of the telescopic design is that it protects the well base from the devastating effects of traffic and changing atmospheric conditions, and also helps to ensure that the manhole is always on the same level with the road surface.

Due to the profiled sealing ring, the proposed design allows the telescopic part to move in a vertical plane under the influence of dynamic loads, as well as due to temperature changes. This makes it possible to avoid stress, leading to the destruction of the vertical pipe and the bottom of the well, and thereby protects the entire sewer system.

The area of repair work is an order of magnitude smaller than with the traditional method; the closure of motor vehicles is not required.

It is supposed to serve the new design of the well using modern technology without the presence of a person inside the well.

The use of new repair technology and a new design of wells guarantees:

1. Decrease in industrial and domestic injuries.

2. Reduction in the number of road traffic accidents and the cost of possible damage resulting from road traffic accidents.

3. Protection from acts of vandalism and terrorism.

4. Decrease in labor input of construction and installation works, cost of materials and terms of construction and installation works.

5. Improving reliability and increasing the standard life of wells.

6. High maintainability.

7. Exclusion of damage to underground utilities, including power cables.

At the same time, the time of repair work is significantly reduced (5-6 hours), the complexity and degree of mechanization are reduced several times (the main operations are performed manually), no drainage device, bypass line and sewage pumping are required.

Information sources.

1. Yakovlev S.V., Karelin Y.A., Zhukov A.I., Kolobanov S.K. Sewerage. Textbook for high schools. Ed. 5th, rev. and add. M .: Stroyizdat, 1975, p. 82-85.

2. Yakovlev S.V., Voronov Yu.V. Drainage and wastewater treatment. Textbook for high schools. M .: ASV, 2002, p. 101-102.

Claims (3)

1. Sewerage well, comprising a cast iron kit, a tray part and a well bottom, characterized in that it contains a conical support, a vertical pipe serving as a well trunk, a telescopic part, an o-ring, and a well bottom with a chute part serves as the basis for the conical support into which a vertical pipe is inserted, while the conical support, the vertical pipe, the telescopic part are made of plastic, and the o-ring is made of rubber. 2. Sewerage well according to claim 1, characterized in that the conical support is equal to the inner diameter of the well bottom and sealed with mounting foam with concrete pouring to a height of 100-150 mm, a vertical pipe is inserted into the upper part of the conical support with a sealing ring. 3. A method of repairing wells of a drainage system, including disassembling a well closure with a cast-iron kit, characterized in that a sewer well is mounted on the bottom of the well with a chute part, including a cast-iron kit, a chute part, a well bottom, a conical support, a vertical pipe serving as a well trunk, the telescopic part, the sealing ring, and the bottom of the well with the chute part serves as the basis for the conical support into which the vertical pipe is inserted, while the conical support, vertical pipe, telescopic some are made of plastic, and the o-ring is made of rubber, the rings of the repaired wells serve as formwork, the space between the rings and the vertical pipe of the new well is covered with sand with a layer-by-layer seal.