Support ring K-1a - support for a sewer or water well hatch

Design features of the K-1a support ring

The outer diameter of the reinforced concrete support ring K-1a is 1000 mm and the hole diameter is 600 mm. In cross-section, it has the shape of a T-bar with a height of 180 mm, with a shelf 120 mm wide. The outer diameter of the ring wall is 840 mm, which allows the product to be supported on the head ring. The body of a cast iron or concrete hatch covering the hole is placed on the shelf of the ring.

The K-1a ring is made according to factory working drawings, developed on the basis of the album code RK 2201-82 of the Mosinzhproekt design institute, from heavy concrete with a compressive strength class of B 22.5 and with frost resistance and water resistance grades F200 and W6, respectively.

The product is reinforced with a mesh of wire reinforcement Ø 4B-I. For mounting the rings, 4 sling loops made of Ø6 A-I reinforcement are provided. The total consumption of concrete for the K-1a ring is 0.053 m³, and reinforcement of classes A-I and B-I is 1.87 kg.

The K-1a support ring is placed on top of the neck rings using a cement-sand mortar. The marking of the top of the ring should be such that the manhole cover is flush with the top layer of the road surface. After installing the ring, the sling loops are cut off so as not to interfere with the installation of the hatch body.

K-1

Reinforced concrete wells are popular in private buildings and in areas where water supply systems, drinking wells and small sewers are built from them. Road construction also actively uses this type of reinforced concrete products. The concrete ring, together with the well cover and the bottom, corresponding to the diameter of the well common to all elements, constitute a complete structure. The elements of support ring wells K-1 are subject to strict quality requirements specified in GOST 8020-90.

The design of the elements of the support ring wells K-1 is quite simple and consists of a frame made of metal reinforcement 6-10 mm thick, covered with concrete and having the required shape. The production process is mainly carried out using the vibrocompression method. The steel reinforcement frame is covered with a layer of heavy concrete and subjected to vibration, which gives the concrete the required density. The result is durable elements for high-quality reinforced concrete wells with a thickness of 60-140 mm. In the production of reinforced concrete well elements, heavy concrete grades from M200 to M500 are used, which guarantees a margin of strength and crack resistance.

Our company produces and installs support rings K-1. For questions regarding the installation of reinforced concrete wells and well elements, please contact us by phone.

The main requirements for concrete for wells are strength, density and water resistance (W4), since concrete wells are buried below the groundwater level. The K-1 support ring elements have low water absorption and can interact with liquids for a long time. To use these elements in aggressive soils, special sulfate-resistant or other cements that tolerate reactive or chemical environments are used in production.

Since the wells are located deep in the ground and do not experience sudden temperature changes, the requirements for the frost resistance of elements of reinforced concrete wells, support rings K-1, are calculated individually and depend on the climatic conditions of the installation site.

Designed to withstand loads from the cover and each other, the elements of the K-1 ring support wells are reinforced with frames made of hardened steel of classes At-IIIC and At-IVC and A-I, A-II and A-III. Metal parts, especially external ones, are pre-treated with anti-corrosion compounds.

From the BLOK company you can order both wells and well elements, support rings K-1, as well as consult with our specialists and select the required concrete wells. You can buy products and consult on general issues of purchase and delivery by calling the BLOK Group company: St. Petersburg , Moscow: (495) 646-38-32 , Krasnodar: (861) 279-36-00 .
Company operating hours: Mon-Fri from 9-00 to 18-00. The BLOK company delivers reinforced concrete products throughout Russia directly to the customer’s site or to the construction site, if the infrastructure allows. In our sales department you can find out in advance to clarify the price from the group “reinforced concrete wells” and calculate the total cost of the order. Installation of reinforced concrete well elements
The choice of element size is carried out depending on the purpose of the reinforced concrete well being constructed. The diameter of the support ring well elements K-1 must correspond to the diameter of the working chamber. Sewage wells and rings are wider than water and gas pipes. And if wells are used for intra-block networks, then it is worth considering that such pipelines are much narrower.

Wells made from concrete ring support elements K-1 are installed much easier and faster than other types. To prevent them from moving out of place during installation, the products are fastened together in four or six places with steel staples.

For ease of use, the well elements provide space for installing a gate, a metal ladder or hanging brackets. The staples are installed in the holes, and the hanging ones are placed at the joints. Road construction will use the installation of K-1 support ring products on a cement mortar of standard composition 1:2. The joints of the elements on all sides are rubbed with this compound and reinforced. But even this does not exclude waterproofing wells after installation.

Indicators of acceptance testing of elements of concrete wells, support rings K-1

1. Concrete class based on strength and tempering strength of concrete;
2. Compliance of reinforcement and embedded products;
3. Strength of welded joints;
4. Thickness of the protective layer of concrete up to the reinforcement;
5. Accuracy of geometric parameters;
6. Quality of the concrete surface.

The technical passport accompanying the batch of elements of concrete wells, support rings K-1, must contain information about the date of manufacture of the batch, the number of products, the results of strength tests, information about the grade of concrete, compressive strength, class of concrete for frost resistance and water resistance.

Quality control of reinforced concrete support ring well elements K-1

As in other reinforced concrete products, there should be no cracks in the K-1 support ring products. Only so-called shrinkage cracks, barely visible to the eye, with a width of no more than one tenth of a millimeter are possible. Minor deviations in the geometric parameters of the rings are possible, no more than ±5 mm in thickness, ±6 mm in the diameter of the reinforced concrete product. The surfaces of the product should not have a large number of holes with a diameter of more than 15 mm and a depth of more than 5 mm. Finished reinforced concrete wells should not hide the mounting loops of the elements behind the flow of concrete, as this may complicate the installation of parapet slabs.

Storage and transportation of concrete well elements

Elements of concrete ring support K-1 wells should be stored in stacks in the working position, face up. One stack should not consist of more than 3-5 rows, in order to avoid falling and deformation of reinforced concrete products. For delivery, the products are stacked no higher than 2.5 meters and securely fastened. During transportation and storage, gaskets with a thickness of at least 40 mm must be placed between the elements.

High quality support rings K-1a at the Moscow ZhBI-4 plant

Construction and installation companies laying utility networks in Moscow and the Moscow region can purchase a high-quality support ring K-1a, necessary for assembling the heads of large-diameter wells at our ZhBI-4 plant, which is one of the leaders among industrial enterprises in the construction complex of the capital region.

The high quality of the K-1a ring is explained by consistent and comprehensive control: first of the inert materials and cement entering the plant, then of each stage in the manufacturing process of the product until it is released to the finished product warehouse.

In addition to high quality and a relatively low price (the wholesale price of the K-1a ring is 965 rubles), our products are popular, including due to the fact that the buyer has the opportunity to receive the entire batch of reinforced concrete products purchased from us by our vehicles.

Currently, reinforced concrete rings are widely used to form round wells for gas, sewer and water supply networks.
In addition, reinforced concrete well rings are used to form drinking wells. Modern reinforced concrete sewer wells are formed by installing several rings at the bottom of the well, on top of each other. They are covered from above with a floor slab with a round or rectangular hole. The openings are closed with grates or covers.

The starting material for the production of reinforced concrete rings is heavy concrete, which can have three degrees of permeability: N - normal, O - very low, P - reduced.

For reinforcement of products, BP-I wire, rod steel in accordance with GOST 5781–82 and thermomechanically strengthened reinforcement in accordance with GOST 10884 are used. And inside the wall rings at a distance of 300 mm from each other there may be running brackets made of A-I or A-II reinforcement, protruding above the concrete surface by 12 cm. Thanks to this, well rings, the price of which makes them accessible to a wide range of consumers, demonstrate high strength characteristics and are characterized by a long service life.

Summary table of sold well rings

Support rings

The KO-6 support ring is actively used in the construction of reinforced concrete wells; hatches are installed on them. KO 6 are used to ensure that the level of the road surface matches the height of the well itself. Support rings are used when installing cast iron hatches to a new level of the road surface.

Well support ring (KO 6) is a concrete structural element of round underground wells on which the well hatch rests. Concrete rings are universal elements that are part of many engineering structures of various levels of complexity. Without support rings, the construction and reconstruction of roads is impossible, since the installation of hatches is possible with the help of concrete rings. Together with other well elements, support rings are often used both when laying urban drainage communications, network, water and gas wells, various communication lines, and in private construction for the installation of wells and septic tanks. Reinforced concrete rings are used not only for constructing inspection wells, but also in households for drinking wells and cesspools. The ring is installed directly on the ground or buried flush with the surface. The rings are round in shape, corresponding to the diameter of the well, and have a small thickness (70 mm). The ring hole diameter is at least 70 mm, so that a person can get inside if necessary. Rings of wells are a real godsend for those who want to arrange various resources on their private plot.

Due to its small thickness, the weight of the support ring is approximately 50 kg. The support ring KO 6 is made of heavy concrete class B15 and reinforced with one mesh of steel class AI, A-II, A-Sh. The grade of concrete in terms of frost resistance of the support ring is not less than F50, water resistance is not less than W2.

Summary table of sold well support rings

Summary table of sold additional well rings