Reinforced concrete well: dimensions, GOST. Reinforced concrete products

Prefabricated concrete well - one of the mostpopular and popular products, which is famous for its long operating life and high mechanical strength and reliability. This is the most optimal ratio of quality and price. Such concrete products are made much easier and faster than other wells. Optimum installation time is considered to be early autumn, when the groundwater table is the lowest. A well of reinforced concrete can have a variety of sizes, depending on the size of the rings.

Design Features

The arrangement of such wells is quite simple, but when they are erected, all the requirements of GOST and SNiP should be taken into account. These vertical hollow structures consist of:

• bottom part with a hollow bottom;
• walled well rings with a diameter of 1000-1500 mm (they choose the right depth);
• special rings with a diameter of 600 mm, which regulate the height of the well and put into the neck;
• cover installed on the hatch.

As a rule, prefabricated concrete wells are almost or completely submerged in the ground and are located below or above the water table.

During installation, concrete is poured onto the bottom to form a tray part.

Reinforced concrete rings for a well

These concrete products form the well's well. The rings are a crate made of metal reinforcement and covered with concrete. Products are produced in accordance with GOST 8020-90 by vibration pressing from heavy concrete, so that the exact size and high density of the walls are obtained. Used to form and stack a reinforced concrete well.

Concrete cover

This element of reinforced concrete wellsis made of high-strength concrete. It is used as an overlapping plate at the completion of installation of well rings. The covers have a round shape and an opening from above, on which the hatch rests. This structural element prevents the ingress of foreign objects and protects from contamination. A lid for the well is made of heavy concrete and without reinforcement, thereby providing increased strength and reliability.

Bottom for well

This is an important and necessary element for prefabricatedwells, which is a reinforced concrete monolithic plate of round shape. The bottom first descends into the well shaft. On top of it, there are rings of a well and a lid with a hatch. It is on how well it is made and correctly installed, the efficiency of using the well depends.

Types and purposes of the wells

By designation ZHB-wells are divided into several types:

• Sewage (treatment, drainage). Are intended for creation of the system of the water drain in the places of differences of pipes, on turns, etc.
• Water supply. Served as elements of heat and water supply, water supply network.
• Gas-conducting. They are elements of main gas pipelines.

In terms of functionality, a concrete well can be:

1. Lookout. Serves to control the operation of the entire system.
2. Differently. Used when turning the network, in places where there are strong pipe changes, when pipelines of different depths are combined into one network, etc.
3. Turning. It is used in the place where the pipes rotate to prevent blockage. In addition, it is often used as a review.
4. Filtration (filtering). Required for sewage treatment. The reinforced concrete well is installed above the groundwater table.
5. Accumulative. It is used for the accumulation of drains and is most often installed at the lowest point of the site in order to ensure the optimum slope of the sewage pipeline.

Advantages of reinforced concrete

1. Strength of reinforced concrete. Reinforced concrete allows to withstand the loads that arise as a result of ground pressure, and due to its dense structure it is not washed away by groundwater.
2. Reinforced concrete can be built in any soil.
3. The walls of the inner surface of the wells can be easily cleaned without the use of special equipment and qualified specialists.
4. Long service life even when used in places with high humidity and aggressive environments.
5. Easy and simple installation and repair.
6. Concrete is inert, due to what does not affect the quality of water when it is used for a key well.
7. Low cost of reinforced concrete wells. It requires minimal costs for its construction and further operation.

Mounting Features

The process of assembling ferro-concrete wells is carried out in several stages:

1. First of all, it is necessary to clearly definethe place where a well will be built. It should not be installed on the slopes of ravines, gullies, banks of rivers, because then they will take groundwater. In addition, an important negative factor is the contamination of groundwater by various chemical fertilizers, which are used in adjacent areas and fall into the ground through emissions and sewage production.
2. After choosing a place, they begin to work on thepunching directly the well itself of the well (shaft). This process is rather labor-intensive and largely depends on the depth of the soil and the aquifer. Using modern technology allows you to drill very quickly.
3. The incoming water is pumped out.
4. Fill and tamp the filter layers. Then carefully install the first ring. It is from the correctness of its installation that the verticality of the mine depends.
5. For the installation of rings, as a rule, use lifting equipment or special devices that are installed directly above the shaft.
6. After each installation of the ring, metal fasteners are fastened, which are subsequently used as a ladder for work in the well.
7. Connections between the rings are sealed, and the free space between the walls of the concrete rings is covered with soil and carefully compacted.
8. The hatch is filled with clay, ventilation is installed, and the lid is closed with a lid.

Reinforced concrete wells have repeatedly proved the reliability of protecting pipelines from various types of damage through the use of high-quality materials, strength, ease of installation.

Size and price

The size of the rings depends on the type of well. Today's construction market offers the following products:

• diameter - within the limits of 70-250 cm.
• the average height is 50 cm (there are products up to 3 m)

For small wells in private construction small rings are used. The most popular are:

• COP-7-1. The inner diameter of this product is 70 cm, the height of the walls is 10 cm, the width is 8 cm, and the weight is 46 kg.
• COP-7-10. This is a universal product, whose height is 1 m, weight - 457 kg.

The price of concrete rings depends on their size. Larger products cost more.

For example, small KS-7-1 stand on average 340rub. for a unit. The cost of COP-7-5 and CS-7-6 is 900-920 rubles. The price of universal brands KS-7-10 is about 1500 rubles. The largest rings will cost about 5,000 rubles.