RU2777627C1 - Method for constructing a pavement based on reinforced concrete blocks with prismatic elements on the lower surfaces - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to the field of construction and can be used in the construction of the roadbed of various types of roads. Initially, curbs are installed on the sides of the road surface under construction, which form the width of the road, their lower ends are deepened below ground level. Then, soil is selected inside the curbs along the area of ​​the road under construction, and a sandy base is formed in the formed working. Reinforced concrete blocks with prismatic elements on the lower surfaces are laid in rows on a sandy base. Each reinforced concrete block in a row is installed from the end of the next block in the same row at a distance of half the length of the reinforced concrete block. After laying all the blocks, the free space between the blocks is covered with filler, for example, river sand. The working depth and the thickness of the sandy base are formed taking into account the location of the upper surfaces of the reinforced concrete blocks below the level of the upper ends of the curbs, and on the outer side of the curbs, a backfill is created from the upper edge of the curb to the ground surface.

EFFECT: reducing the material consumption of the road surface, increasing the speed of construction of various types of roads, as well as increasing the reliability of fixing and stability of reinforced concrete blocks in the roadway.

1 cl, 2 dwg

Description

The invention relates to the field of construction and can be used in the construction of a roadbed of various types of roads, for example, temporary roads, roads in cottage towns, garden paths inside private households, etc.

A device of a flexible web of concrete blocks is known, characterized in that it is made of concrete blocks arranged in rows and interconnected by means of ropes, and the blocks are made in the form that ensures the mat is rolled into a roll, with each block being a three-dimensional body in the form of a truncated symmetrical tetragonal bipyramid, consisting of two pyramids folded with their large bases, with a plane of symmetry (RF Patent for utility model No. 105312, 10.06.2011, Bull. No. 16).

However, this canvas requires significant material costs due to the manufacture of concrete blocks of complex configuration and high labor intensity when connecting rows of concrete blocks into a canvas, and this canvas also has low adhesion to the soil on which it is mounted.

A known method of building a pavement from concrete blocks, made in the form of a rectangular parallelepiped, while the blocks are laid close to each other on a prepared flat and hard surface with a planned slope, in accordance with the accepted standards for the device pavement (Patent for utility model of the Russian Federation No. 182757, publ. dated August 30, 2018, Bull. No. 25). The disadvantage of this technical solution is the high material consumption of creating a pavement due to the laying of blocks close to each other.

A known method of building roads and parking lots for vehicles coated on the basis of reinforced concrete blocks with prism-shaped elements on the lower surfaces, including the preparation of the foundation (soil filling), the delivery of rectangular reinforced concrete blocks with prism-shaped elements on the lower surfaces of factory readiness to the construction site, laying reinforced concrete blocks in rows, while the lower surfaces of reinforced concrete blocks with prism-shaped elements are laid on the base, while inside each block metal rods are welded crosswise, on the outer ends of which rings are welded, through which each block is connected to the neighboring blocks surrounding it (RF Patent No. 2740277, published on January 12, 2021, Bulletin No. 2).

The disadvantage of this technical solution is the high complexity of mounting the pavement of the blocks due to the need to perform the operations of connecting each block with the surrounding blocks by flexible connections, as well as the low reliability of the prefabricated road surface during operation due to the lack of a dense environment between the blocks, which can lead to a break in the flexible connections with subsequent deformation of the coating and separation of the extreme blocks.

The technical result that can be obtained by implementing the invention is to reduce the material consumption of the road surface, increase the speed of construction of various types of roads, as well as increase the reliability of fixation and stability of reinforced concrete blocks in the roadway.

To achieve this technical result in the proposed method of building a pavement based on reinforced concrete blocks with prism-shaped elements on the lower surfaces, including preparation of the base, delivery of prefabricated rectangular reinforced concrete blocks with prism-shaped elements on the lower surfaces to the construction site, laying reinforced concrete blocks in rows, with In this case, the lower surfaces of reinforced concrete blocks with prism-shaped elements are laid on the base, according to the invention, initially curbs are installed along the sides of the road surface under construction, which form the width of the road, while the lower ends of the curbs are deepened below ground level, then soil soil is selected inside the curbs over the area of the road under construction and in the resulting working, a sandy base is formed, on which reinforced concrete blocks with prism-shaped elements on the lower surfaces are laid in rows, each reinforced concrete block in a row is installed from the end the next block in the same row at a distance of half the length of the reinforced concrete block, the side surfaces of the blocks in adjacent rows are laid close to each other, while the free space between the ends of two adjacent blocks in the row, with a length equal to half the length of the block, is formed in the middle of the adjacent reinforced concrete block row, after laying all the blocks, the free space between the blocks is covered with filler, while the depth of the working and the thickness of the sandy base are formed taking into account the location of the upper surfaces of the reinforced concrete blocks below the level of the upper ends of the curbs, and on the outside of the curbs, a backfill is created from the upper edge of the curb to the ground surface .

Introduction to the proposed method of constructing a road surface based on reinforced concrete blocks with prism-shaped elements on the lower surfaces of the initial installation along the sides of the road surface under construction curbs that form the width of the road, while the lower ends of the curbs are deepened below ground level, sampling inside the curbs over the area of the soil road under construction soil and the formation of a sandy base in the formed working, on which reinforced concrete blocks with prism-shaped elements on the lower surfaces are laid in rows, while each reinforced concrete block in the row is installed from the end of the next block in the row at a distance of half the length of the reinforced concrete block, laying the side surfaces of the blocks in adjacent rows close to each other, the formation of free space between the ends of two adjacent blocks in a row, with a length equal to half the length of the block, in the middle of the reinforced concrete block of the adjacent row, backfilling after laying all the blocks of free space filler between the blocks, forming the depth of the working and the thickness of the sandy base, taking into account the location of the upper surfaces of the reinforced concrete blocks below the level of the upper ends of the curbs and the creation of backfill from the outside of the curbs, for example, from a mixture of cement and river sand, from the upper edge of the curb to the ground surface, allows you to get a new property, which consists in the possibility of reducing the number of reinforced concrete blocks used due to their alternation with free spaces filled with sand filler, which allows you to reduce the material consumption of the road surface, increase the speed of construction of various types of roads due to the absence of labor-intensive and time-consuming binding of road surface blocks between itself, as well as increasing the reliability of fixation and stability of reinforced concrete blocks in the roadway through the use of curbs, reinforced by placing their lower ends in the ground and creating a backfill from the outside.

The implementation of the proposed method for constructing a road surface based on reinforced concrete blocks with prismatic elements on the lower surfaces is illustrated by the drawing shown in Fig. 1 is a plan view of the road surface, and FIG. 2, cross section of the roadway, where:

1 - reinforced concrete block;

2 - prismatic elements on the lower surface of the reinforced concrete block;

3 - filler (for example, river sand);

4 - sand base;

5 - curbs;

6 - backfilling from a mixture of cement and river sand.

The proposed method for constructing a pavement based on reinforced concrete blocks with prismatic elements on the lower surfaces can be implemented as follows.

Initially, curbs 5 are installed on the sides of the road surface under construction, which form the width of the road, while the lower ends of the curbs 5 are deepened below ground level. Then, inside the curbs 5, soil soil is selected along the area of the road under construction, and a sandy base 4 is formed in the resulting working.

Reinforced concrete blocks 1 with prismatic elements 2 on the lower surfaces are laid in rows on the sandy base 4. Each reinforced concrete block 1 in a row is installed from the end of the next block in the same row at a distance of half the length of the reinforced concrete block 1. The side surfaces of the blocks 1 in adjacent rows are laid close to each other. The resulting free space between the ends of two blocks 1 adjacent in a row, with a length equal to half the length of the block, is formed in the middle of the reinforced concrete block of the adjacent row. After laying all the blocks 1, the free space between the blocks is covered with filler 3 (for example, river sand).

At the same time, the working depth and the thickness of the sand base 4 are formed taking into account the location of the upper surfaces of the reinforced concrete blocks 1 below the level of the upper ends of the curbs 5, and on the outer side of the curbs 5, a backfill 6 is created from the upper edge of the curb 5 to the ground surface.

The alternation of reinforced concrete blocks 1 with free spaces filled with sand filler 3 reduces the number of reinforced concrete blocks 1 used and reduces the material consumption of the road surface.

The absence of connections between blocks 1 simplifies the process and speed of construction of the roadway due to the absence of laborious and time-consuming binding of blocks 1 to each other, and the use of curbs 5, reinforced by placing their lower ends in the ground and creating a backfill 6 from their outer side, makes it possible to increase reliability fixation and stability of reinforced concrete blocks 1 in the roadway.

Sources of information taken into account when drawing up the application:

1. RF patent for utility model No. 105312, publ. dated 10.06.2011, Bull. No. 16.

2. RF patent for utility model No. 182757, publ. dated 30.08.2018, Bull. No. 25.

3. RF patent No. 2740277, publ. dated 01/12/2021, Bull. No. 2 - prototype.

Claims (1)

A method for constructing a road surface based on reinforced concrete blocks with prism-shaped elements on the lower surfaces, including preparation of the foundation, delivery of prefabricated rectangular reinforced concrete blocks with prism-shaped elements on the lower surfaces to the construction site, laying reinforced concrete blocks in rows, while the lower surfaces of reinforced concrete blocks with prism-shaped elements are laid on a base, characterized in that initially curbs are installed on the sides of the road surface under construction, which form the width of the road, while the lower ends of the curbs are deepened below ground level, then inside the curbs, soil is selected along the area of the road under construction and sandy soil is formed in the resulting working. a base on which reinforced concrete blocks with prismatic elements on the lower surfaces are laid in rows, each reinforced concrete block in a row is installed from the end of the next block in the same row at a distance of half the length reinforced concrete block, the side surfaces of the blocks in adjacent rows are laid close to each other, while the free space between the ends of two adjacent blocks in a row with a length equal to half the length of the block is formed in the middle of the reinforced concrete block of the adjacent row, after laying all the blocks, the free space between the blocks they are covered with filler, while the working depth and the thickness of the sandy base are formed taking into account the location of the upper surfaces of the reinforced concrete blocks below the level of the upper ends of the curbs, and on the outer side of the curbs, a backfill is created from the upper edge of the curb to the ground surface.

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