Wells can be equipped when laying a variety of communications - water pipes, sewer systems, cable lines, etc. But in most cases, their walls are reinforced with ready-made rings of a special design. Products of this variety may have a different configuration, diameter and height.
Main varieties
When laying communications, well rings can be used:
- Wall. Such products are used to form the necks of various well structures.
- Standard. Rings of this type are actually used to strengthen the walls of wells for network, drainage, gas pipelines, etc.
- Auxiliary. Such rings are made to order and differ in non-standard sizes and configurations.
Well rings can be made of reinforced concrete or plastic. Both varieties are used quite often when laying communications, and can have both their advantages and disadvantages.
What are reinforced concrete rings
Products of this varietyare made using cement mortar and metal fittings. Concrete rings are poured in molds of a special design.
In order for the rings to be as strong as possible, vibrocompression technology is used in their production. Some disadvantage of products of this type is a lot of weight. Reinforced concrete products are installed in pits, usually using special equipment. The weight of a well ring with an inner diameter of 1000 mm, a wall thickness of 80 mm, a height of 890 m made of concrete grade 200, for example, is 0.6 tons.
What are the types of reinforced concrete rings
When arranging wells for various purposes, they can be used:
- Ordinary rings. Products of this type can be high or low. Rings of this type also differ in terms of wall thickness.
- Well bottom rings. Such products are made from high-strength concrete grade M200-M500. Rings of this type are monolithic structures and are used to equip sealed tanks.
- Rings with a lock. Such rings have special notches at the bottom and at the top along the edges. Products of this type are used when assembling well shafts, for example, on unstable soils.
Reinforced concrete well rings are round or square in shape. When laying communications, the first type of product is most often used.
Marking of reinforced concrete wells
In order for the consumer to understand the targetthe purpose of the rings, manufacturers mark them in a special way. The most well-known in construction letters for products of this type are:
- KO - reinforced concrete support ring installed at the bottom - in the foundation part of the mine;
- KS - wall rings;
- KVG - products used in the arrangement of water or gas wells;
- KLK - rings used in rain sewer systems;
- KFK - products used in the installation of drainage systems or collector networks.
In addition to letters, the marking of reinforced concrete rings usually contains numbers indicating their diameter and height. The covers and bottoms of such products can be marked respectively with the letters PP or PK and PN and PD.
Standard sizes of concrete well rings
When arranging all kinds of communications, products of this type of various sizes can be used. But most often, the walls of the wells are reinforced with well rings:
-
KS10-9 890 mm high and 1 m in diameter;
- KS10-6, whose dimensions are 590 and 1000 mm respectively;
- KS10-3 250 mm high and 1 m in diameter.
The wall thickness of reinforced concrete rings used in laying communications can vary between 70-120 mm. Most often, products with a diameter of 1 m are installed in wells. But when installing engineering systems, rings of other sizes can be used - from70 to 200 cm. The height of such products can be 10-100 cm.
Characteristics of reinforced concrete products
Concrete sewer wells are usually made from cement mortar using polymer sand mixtures. Indeed, during operation, these products often come into contact with water.
In the manufacture of reinforced concrete rings, enterprises use not ordinary formwork, but special vibroforms. A reinforcing structure is first installed in them. The concrete mixture is then placed into the mold and compacted by vibration. This technology makes it possible to produce the most durable rings.
What are plastic wells
Products of this type are, of course, somewhat inferior to reinforced concrete. However, such rings have one important advantage. Plastic wells are much easier to install than reinforced concrete. You can install such a product in place without the use of special equipment, just by hand.
Wells of this type are made of polymeric materials and can have both smooth and corrugated walls. Depending on the diameter, products of this type are divided into narrow (up to 1 m) and wide (over 1 m).
Types of plastic well rings
By design, products of this variety are classified into monolithic and prefabricated. The latter type of wells is more expensive, but is also considered much more convenient to use. If desired, such a well can be adjusted to a hole of any depth.
By purpose, such products can be:
- sewer;
- tap;
- drainage.
Sewer plastic sewer rings in turn are:
- revision with tray element;
- sedimentary, supplemented by branched pipes;
- drop;
- inspection sealed with ladder;
- eccentric.
Also, when laying communications, storage sealed sewer wells can be used. Such products have a bottom and are covered with a lid.
Varieties according to the material of manufacture
In this regard, plastic sewer rings are distinguished:
- polyethylene with a long service life;
- durable polypropylene;
- corrosion-resistant fiberglass.
The design of all these types of rings is such that installation on site takes a minimum of time. All seams and joints of plastic products are thought out in advance.
Dimensions and characteristics of plastic wells
Products of this variety, of course, also differ in shape and size. Well rings made of plastic can have a diameter of 600 to 1500 mm. The wall thickness of products of this type in most cases is 50 mm. But there are also non-standard options for rings with thicker or thinner walls.
Heightplastic rings starts from 500 mm. At the highest wells, this figure is 1500 mm. Outside, plastic rings are usually supplemented with stiffeners, which significantly increases the service life. Despite the fact that plastic wells of reinforced concrete products are inferior in strength, in most cases they are able to withstand soil pressure without much difficulty.
