RU31790U1 - COVERAGE PLATE - Google Patents

Description

COVERING PLATE.

The utility model relates to the field of road construction and can be used for prefabricated road surfaces, as well as for temporary roads, sidewalks, parking lots and sites for various purposes.

A known design of a rectangular reinforced concrete slab, see RF patent No. 2052569, IPC7 ЕС 5/00, publ. 01/20/96, bull. No. 2, the lower surface of which in each half, symmetrical with respect to the transverse axis of symmetry of the plate, is formed by two identical small cells and several identical large cells located symmetrically with respect to the longitudinal axis of symmetry of the plate, and the lower surface is made smooth on the corner sections of the plate.

The disadvantage of the slab is the lack of the ability to connect the slabs to each other, and therefore there is no redistribution of the existing loads, which requires a solid foundation to ensure the necessary evenness of the coating.

Another disadvantage of the plate is the high thermal conductivity of the materials used, which is why a device is required to ensure the required frost resistance of the pavement

From soils that are not prone to frost heaving, as a rule, imported, which increases the cost of construction.

For the prototype of the claimed utility model, a prefabricated coating plate was taken, see RF patent No. 2091535, IPC 701C 5/00, publ. 09/27/97, bull. No. 27, with

IPC 7 E OIC 5/00, 9/00, 9 / 08.15 / 00

: .- -t-

butt joints in the form of alternating protrusions and depressions at the ends of the plates.

The advantage of the prototype is the ability to redistribute the existing vertical loads into horizontal.

The disadvantage of the prototype is that to ensure the required evenness of the coating in areas with seasonal freezing of the subgrade, the device requires an additional (frost-proof) base layer of non-porous materials, which increases the complexity of the pavement device and increases the material consumption of the pavement structure.

The objective of the claimed utility model is the creation of a rigid, durable plate with low thermal conductivity and high frictional properties of the surface of the plate, suitable for the device of prefabricated coatings of roads, pads and sidewalks with butt elements, allowing repeatedly disassemble-assemble the coating with the possibility of using heaving soils in the working layer of earthen canvases.

This problem is solved in the plate, which includes the forming substance and embedded elements located in the substance, as well as butt connecting elements.

The embedded elements of the prefabricated coating slab are made of various shapes and are filled with effective heat-insulating material, for example, polystyrene foam, polyurethane foam, air.

The surface of the plate has a roughness, which provides the required grip with the wheel of the car and can be made of high-strength hard-to-grind crushed stone of narrow fractions embedded in the upper layer of the plate during its manufacture.

The utility model is illustrated by the following drawings.

In FIG. 1 shows a prefab plate.

In FIG. 2, 3, 4 depict embodiments of the plate with embedded elements of various shapes.

In FIG. 5 shows the assembly of two) precast plates.

The utility model can be implemented in the construction of a prefabricated slab, see Figure 1, made by injection molding 1, for example, a material based on vinyl ester resin with fillers.

The working surface of the plate, see FIG. 1, can be provided with a layer 2 of high-strength hard-grinding crushed stone of narrow fractions, recessed into the upper layer of the forming substance 1 upon curing of the latter.

To implement the utility model, the plate is equipped with butt connecting elements 3, 4 (see Fig. 1, 5) and mortgage elements 5 are placed in the thickness of the substance 1 (see Fig. 2-4).

Butt joint elements can be made in the form of pockets 3 placed along the edges of the plate from the side of the working surface of the plate, with through mounting holes 4 made in the side wall of the pocket.

The embedded elements 5 (see Fig. 2-4) can be made of various shapes of closed or open structure. In this case, foam, polyurethane foam or air can be used as a heat-insulating material.

Mortgage elements are placed in the injection mold before pouring the forming substance 1.

The connection of the plates (see Fig. 5) can be carried out as follows. In the through mounting holes 4 of the first plate 1 are inserted connecting pins 6 provided with annular recesses. The pins are fixed in the holes 4 using the brackets 7, introduced through the pockets 3. When connecting, use an intermediate washer and a rubber gasket (shown in Fig. 5 without indicating positions), worn on the pins 6. Then, the rubber pads 8 are put on the pins 6.

Then, the second plate 1 is docked to the plate 1. In this case, the free ends of the pins 6 installed from the junction of the plates 1, 1 are inserted into the through holes of the second plate G, intermediate washers and gaskets are put on the pins 6, after which the plate 1 is fixed on the pins 6 by means of staples T. The joint between plates 1, D can be filled with sealant 9.

The thickness of the road slab is determined by calculating the strength and thermal conductivity.

The dimensions in the plan (length and width) are selected depending on the installation conditions (manually or using lifting mechanisms).

The presence of butt connecting elements 3, 4 (see Fig. 1, 5) facilitates the combination of plates into a single continuous carriageway with the required flatness according to SNiP 3.06.03-85.

Using the claimed utility model allows you to:

-increase the speed of construction, as one structural layer is laid; -Reduce or prevent freezing of the soil of the subgrade, which will allow the use of any, including heaving soils in the working layer of the subgrade; -decrease atmospheric precipitation in the working layer of the subgrade, in

therefore, the estimated soil moisture of the subgrade will decrease and its deformative characteristics will increase; -exclude other structural layers.

Claims (5)

1. A plate of prefabricated coatings made of a forming substance and embedded elements located therein, characterized in that the plate is provided with butt connecting elements. 2. The stove according to claim 1, characterized in that the embedded elements of various shapes are made of heat insulating material. 3. The stove according to claim 1, characterized in that the vinyl ester resin with a filler serves as a forming substance. 4. The plate according to claim 1, characterized in that the surface of the plate is made of high-strength hard-to-grind gravel of narrow fractions, recessed into the upper layer of the forming substance during curing of the latter. 5. The plate according to claim 1, characterized in that the butt connecting elements allow you to repeatedly connect and disconnect individual plates with each other.