RU170714U1 - Canvas collapsible temporary pavement - Google Patents

Abstract

The utility model relates to the field of road construction, in particular to composite slabs for collapsible pavings intended for the construction of temporary roads in hard-to-reach places, in areas with weak soil, flooded and swampy areas. The device consists of plates 1 and 2, made of polymer composite materials, connected to the roadway with special locking joints, including holes 4, in which cotter pins are inserted 9. Holes with grooves 6 are made in the crosshairs of the ribs 5 of plates 1 and 2 for distribution of gas-air mixtures throughout the interior of the slabs. In one of the corners of the top plate there is an opening 7 for installing a check valve (not shown) through which the gas-air mixture will be supplied at the factory. The technical result of the utility model is to increase the rigidity of the roadbed structure and increase the reliability and durability of road slabs and the pavement constructed from them by reducing the dynamic effect on the docking nodes during their operation, quick installation and dismantling of the roadbed, high wear resistance, reliable design, all-weather use, all-weather use assembly and disassembly, no cracks, anti-slip surface, low cost, no vertical displacements of one plate relative to another, low labor costs, the ability to dismantle any road slab without affecting neighboring slabs.

Description

The utility model relates to the field of road construction, in particular to composite slabs for collapsible pavings intended for the construction of temporary roads in hard-to-reach places, on areas with weak soil, flooded and marshy areas, for the device of technological driveways and sites during construction and installation works for the construction of temporary sites for the protection of the topsoil, ground coverings during public events.

Known mobile road surface (US Pat. No. 2232223, IPC 7 E01C 9/00, E01C 3/00), including applied to the surface of the roadway web material consisting of layers of tapes located one above the other, the extreme layers of which form a closed cavity in which additional layers are laid, while the cavity is connected to the highway to fill the working medium. The layers of tapes located one above the other are made of thin-walled elastic-flexible elastic material, and two or more layers of perforated tapes are used as additional layers, between which filling is made of hydroreacting highly swellable material, which is used as a polyelectrolyte hydrogel with a degree of volume expansion and increase when swelling is not less than 2.0 × 104, while water with the addition of a hydrogel in a state of swelling was used as a working fluid overhnostno-active agent in an amount of 0.01 parts by weight to 100 parts by weight water.

The disadvantages of the known technical solution are its basic structural scheme, which does not allow a radical change in the quality and stability of this pavement, which does not allow for a sharp decrease in the throughput of the pavement and the regulation of the passage of rolling stock and pedestrians in a protected section of the roadway.

Known road mat for roads with collapsible coating (US Pat. RF No. 131734, E01C 5/00, op. 27.08.2013), forming the coating of a temporary road, the coating is formed by reusable plates of composite polymer material, connected by means of a locking device, providing fastening of plates without the use of tools and auxiliary mechanisms, which is an assembly unit - a channel with a reinforcing lining and a protected axis of fixation.

The disadvantages of the known technical solutions include the insufficient operational reliability of the road surface and its strength formed by these plates.

The closest in essence and the technical result achieved is a building plate (US Pat. RF No. 107165, IPC E01C 5/00, op. 10.08.2011), made in the form of a hexagon rectangular in plan, the side and end faces of which have docking elements in the form ledges 3 and 4 opposite on opposite sides of the slab with a height equal to half the thickness of the slab. Each protrusion 3 and 4 has a series of holes 5, the longitudinal axis of which is offset along the protrusion. Each hole 5 in height is formed by two sections, the first 7 of which is oval, and the second has a diameter equal to or greater than the length of the longitudinal axis of the oval section. The portions of the holes 5 on the opposed protrusions 3 and 4 are counter-directed. The plate has clamps for connecting the plates to each other in the form of removable locks 6. The lock 6 has an oval body 8, placed in the oval sections 7 of the holes 5 of adjacent plates when they are joined. The height of the housing 8 is equal to or less than the height of sections 7 of adjacent plates. The housing 8 is equipped with a rotary axis 11 having a cylindrical head 12 at one end for placement in the second portion of the opening 5 of the protrusion of one of the plates, which forms the front surface of the coating when docked with an adjacent plate. The other end of the axis 11 has an oval plate 13 for placement in the second section of the hole 5 of the protrusion of another plate adjacent to the named and forming the back surface of the coating.

However, the operational reliability of the pavement and its strength formed by these plates are insufficient under the action of significant dynamic loads from heavy vehicles, as well as in the conditions of repeated use of plates in the creation of temporary pavements for industrial purposes, for example, when creating technological driveways, roads during construction -installation work on oil pipelines, when laying roads in swamps and deserts.

The technical problem solved by the claimed utility model is that through the use of composite road mats for roads with a collapsible coating to ensure the passage of heavy wheeled and tracked vehicles in difficult and marshy terrain, improving the working conditions of the slab, increasing strength and operational reliability, reusable use of coatings.

The use of composite road mats will ensure the guaranteed passage of heavy wheeled and tracked vehicles in weak soils and wetlands, the required level of operational and technical characteristics of temporary roads and sites, as well as significantly increase the number of reuse of road surfaces.

The technical result of the utility model is to increase the rigidity of the roadbed structure and increase the reliability and durability of road slabs and the pavement constructed from them by reducing the dynamic effect on the docking nodes during their operation, quick installation and dismantling of the roadbed, high wear resistance, reliable design, all-weather use, all-weather use assembly and disassembly, no cracks, anti-slip surface, low cost, no vertical displacements of one plate relative to another, low labor costs, the ability to dismantle any road slab without affecting neighboring slabs.

This is achieved due to the fact that the fabric of a collapsible temporary pavement made in the form of a rectangular plate, the side and end faces of which have docking elements for interacting with mating docking elements of adjacent plates containing clamps in the form of removable locks for connecting the plates to each other their docking, according to the utility model, is made of reusable plates in two layers; at the same time, a relief tread is applied to the working side of each plate; the lower side of each plate has a relief of protrusions in the form of intersecting rows of ribs; at the same time, the slabs are mounted in pairs, one on the other so that when they are joined by the sides with the ribs closed cavities are formed; at the same time, the cavities are filled in the factory with a gas-air mixture, creating a pressure inside them above atmospheric pressure, perceiving the load acting on the road from a vehicle moving along it; while the closed cavity is communicated with the working surface of the plate with a grid of holes made in the crosshairs of the ribs; at the same time, grooves are made in the holes for distributing the gas-air mixture over all internal closed cavities of the web; at the same time, an opening for installing a check valve is made in the upper plate, through which the gas-air mixture is supplied at the factory; while the removable lock has holes in which cotter pins are inserted. In this case, the plates are made of polymer composite materials. In this case, the gas-air mixture is a mixture of air with an inert gas. The density of this gas-air mixture is lower than the density of air. In this case, the check valve opening is closed tightly with riveting or welded.

Significant differences of the utility model from the well-known technical solutions:

- increase in structural rigidity due to high pressure inside the plate;

- holes with grooves are made on the ribs of the upper and lower plates, through which the distribution of the air-gas mixture is carried out throughout the entire internal space of the plate;

- in the upper plate there is a hole for installing a non-return valve, through which the gas-air mixture is supplied at the factory. After filling the plate with a gas-air mixture, the hole is tightly closed with riveting or welded;

- air-gas mixture is a mixture of air with an inert gas. The density of this mixture is lower than the density of air.

The density of the final slab structure is lower than the density of water, which ensures that the slab is kept on the water surface (swamps, wetlands, shallow rivers, streams).

The described utility model is illustrated graphically, where:

in FIG. 1 presents a canvas collapsible temporary pavement, General view;

in FIG. 2 - the same, bottom plate, general view;

in FIG. 3 is the same, view A in FIG. 2;

in FIG. 4 is the same, section aa in FIG. 3;

in FIG. 5 - the same, side view, section;

in FIG. 6 - the same, the lock in the open state, a cut;

in FIG. 7 - the same, the lock in the closed state, a cut.

Positions indicate: top plate 1; bottom plate 2; tread 3; hole 4; rib 5; hole with a groove 6; hole 7 for the passage of the gas mixture; cork 8; cotter pin 9.

The device consists of plates 1 and 2, made of polymer composite materials, connected to the roadway with special locking joints, including holes 4, in which cotter pins are inserted 9. Holes with grooves 6 are made in the crosshairs of the ribs 5 of plates 1 and 2 for distribution of gas-air mixtures throughout the interior of the slabs. In one of the corners of the top plate there is an opening 7 for installing a check valve (not shown) through which the gas-air mixture will be supplied at the factory.

The device operates as follows.

Plates 1 and 2, made of polymer composite materials, are connected to the mobile road surface by installing cotter pins 9 in the holes 4. A non-return valve is installed in the corner hole of the mobile road surface through which gas will be launched. Through the hole 6, the mobile pavement is filled uniformly with a gas mixture. The gas mixture will be pumped after two parts of the stove are compressed, welded and tightened with a rod (not shown).

The utility model is a modern alternative to concrete slabs when laying a temporary pre-fabricated roadbed.

Claims (5)

1. Canvas collapsible temporary pavement made in the form of a rectangular slab, the side and end faces of which have docking elements for interacting with mating docking elements of adjacent plates containing locks in the form of locks for connecting the plates to each other when docking, characterized in that it is made of reusable plates in two layers; a relief tread is applied to the working side of each plate; and the bottom side of each plate has a relief of protrusions in the form of intersecting rows of ribs; in this case, the slabs are mounted in pairs, one on the other so that when they are joined by the sides with the ribs, closed cavities are formed, filled with a gas-air mixture, creating a pressure inside them above atmospheric, absorbing the load acting on the road from the vehicle moving along it; while the closed cavity is communicated with the working surface of the plate with a grid of holes made in the crosshairs of the ribs; grooves are made in the holes for distributing the air-gas mixture over all internal closed cavities of the web; moreover, an opening for installing a check valve is made in the upper plate, through which the gas-air mixture is supplied at the factory; in addition, the lock has holes in which cotter pins are inserted. 2. Cloth collapsible temporary pavement under item 1, characterized in that the plates are made of polymer composite materials. 3. Canvas collapsible temporary pavement under item 1, characterized in that the gas-air mixture is a mixture of air with an inert gas. 4. Canvas collapsible temporary pavement under item 1, characterized in that the density of this gas mixture is lower than the density of air. 5. Cloth collapsible temporary pavement under item 1, characterized in that the hole of the check valve is tightly closed with riveting or welded.

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