RU183317U1 - SUPPORT WALL UNIT - Google Patents

Abstract

The facing block of the retaining wall is made with two through cavities open from the ends of the block, each inner wall bounded between the through cavities and the outer walls, from the front, back and side of the block, while the thickness of the inner wall between the through cavities exceeds at least twice the thickness of the outer side wall of each through cavity to the opposite wall between the through cavities. When the block is in the retaining wall, each of the two outer side walls of the block located in the intermediate row, with its lower end surface, relies entirely on the end surface of the inner wall of the block in the downstream row.

Description

Technical field

The utility model relates to the field of construction, namely, to strengthen soil slopes with retaining walls from facing blocks.

State of the art

Blocks for retaining walls are widely known and are used for solution-free masonry of retaining walls that strengthen soil slopes. They are characterized by execution with a vertical plane of symmetry, with through cavities filled with drainage material, open from the ends of the block, and the presence of front, back and sides. In this case, the blocks in the retaining wall are put apart, i.e. in each overlying row, the retaining walls are shifted relative to the blocks in the underlying row by half its size (its length) along the wall.

From US Pat. block.

In the retaining wall, these blocks in each overlying row rest on the ends of the walls of two blocks of the lower row at once, and the edge of the block of the overlying row falls in the middle of the underlying block. And since the through cavity is in the middle of the block, the block in the middle (in the vertical plane of symmetry) has a weakened section, which, due to the dry laying of the blocks, leads to cracking and destruction of the retaining wall when it is deformed.

The retaining wall block is also known, disclosed in the patent of the Russian Federation No. 2330142 dated 07/27/2008, made with three through cavities filled with drainage material open from the ends of the block.

This known block has the same drawback as blocks with one through cavity - a weakened section in the middle of the block, which, when the block is in the retaining wall, coincides with the edges of neighboring blocks in the underlying row and is subject to the action of these blocks when the retaining wall is deformed.

In addition, a retaining wall block is known, disclosed in European patent EP 0472993 dated 02.11.1994, made with a vertical plane of symmetry and symmetrically arranged, filled with drainage material by two through cavities, open from the ends of the block and bounded by each inner wall - between the through cavities and the outer walls - from the front, back and side of the block. This known block is a prototype of the claimed retaining wall block.

The disadvantage of this known block is that the outer walls on the sides of adjacent blocks, while in the retaining wall, do not rest on the inner wall between the through cavities of the block in the downstream row and the edges of these adjacent blocks rest on the outer walls of the blocks in the downstream row with a weakened section .

The claimed utility model is aimed at increasing the resistance to destruction of the block in the retaining wall.

Utility Model Disclosure

The technical result achieved when using the claimed block retaining wall is to increase the resistance of the retaining wall to deformation and destruction of the blocks, primarily due to the relative position of the blocks in the retaining wall with a relative thickening of the inner wall of the block between the through cavities.

The specified technical result is achieved in a retaining wall block made with a vertical plane of symmetry, with two through cavities filled with drainage material, open from the ends of the block from the upper and lower sides of the block, each inner wall bounded between the through cavities and the outer walls with the front, the back and side of the block, while the thickness of the inner wall between the through cavities exceeds at least two times the thickness of the outer side wall of each through cavity against the positive wall between the through cavities, and each of the two outer side walls of the block located in the intermediate row of the retaining wall, with its lower end surface, relies entirely on the end surface of the inner wall between the through cavities of the block in the lower row, and its entire upper end surface supports the inner the wall between the through cavities of the block in the upstream row.

The block can be made trapezoidal in cross section, while the thickness of the outer side walls decreases in the direction from the front side of the block to the back side.

Each through cavity filled with drainage material can be made tapering in cross section towards each of the outer walls and to the inner wall.

The outer wall of each through cavity on the front side can be at least 1.2 times thicker than the outer wall on the back side.

Brief Description of the Drawings

In FIG. 1 shows a top view of a facing block.

In FIG. 2 shows a sectional view of a facing block in a side view.

In FIG. 3 shows a section of a facing block in a front view.

In FIG. 4 shows the relative positioning of the cladding blocks in the retaining wall.

Utility Model Implementation

The block shown in FIG. 1, FIG. 2 and FIG. 3, also called a facing block, is made of concrete by vibropressing from heavy concrete of a brand with a compressive strength of at least B25, with a density of 2200-2500 kg / m ³ .

The block is made with two through cavities 1 and 2, filled with drainage material in the retaining wall, the inner wall 3 - between the through cavities 1 and 2 and the outer walls: front wall 4, back wall 5 and side walls 6 and 7.

The block is symmetrical, the plane of symmetry runs along the inner wall.

Cross section of a block, see FIG. 1, trapezoidal, the thickness of the side walls 6 and 7 decreases in the direction from the front side of the block to the back side. In this case, the through cavities 1 and 2 are narrowed in cross section towards each of the outer walls and to the inner wall.

The thickness of the inner wall 3 is two or more times thicker than the side walls 6 and 7. If we compare with the block, for example, disclosed in the patent of the Russian Federation No. 2330142 dated 07/27/2008, made with three through cavities, then in the declared block instead of two inner walls one but twice as thick. Moreover, in contrast to the block disclosed in the patent of the Russian Federation No. 2330142, in the claimed block the inner wall, when the block is in the retaining wall, see FIG. 4, serves as a support for the side walls of the blocks of the overlying row and itself rests on the side walls (shown by the dashed line) of the blocks of the underlying row.

The claimed block has a new geometric shape, which allows to improve the strength properties of the block in the retaining wall. In FIG. 4 shows the arrangement of blocks in two rows of retaining wall. Block 8 of the upper row rests entirely with its side walls on the inner walls of the underlying blocks 9 and 10. And the side walls of blocks 9 and 10 serve as a support for the inner wall of block 8.

Blind holes 11 and 12 and through holes 13 and 14, see FIG. 1 and FIG. 2 serve to fix the relative position of the blocks in the retaining wall with pins 15 and 16, see FIG. 4, made, for example, in the form of tubes of low pressure polyethylene. The location of the blind holes at a greater distance from the front surface of the block than the through holes, takes into account the need to position the front surfaces of the blocks of the overlying row with an offset, see FIG. 4, relative to the front surfaces of the blocks of the underlying row.

The front wall 4 of the claimed block is not less than 1.2 times thicker than the back wall 5. In this case, the front wall 4 is more thickened at the junctions to the inner wall 3 and side walls 6 and 7 than the back wall 5.

The thickening of the inner wall 3 and the front wall 4, while maintaining the total cross-sectional area of the cavities 1 and 2, allows you to better resist the deformation of the retaining wall and to avoid the formation of cracks and subsequent destruction of the front walls of the blocks in the retaining wall. The thickening of the walls complements the new geometric shape of the cladding block.

Claims (3)

1. Block retaining wall made with fillable drainage material two through cavities, each inner wall bounded between through cavities and outer walls - from the front, back and side of the block, characterized in that the thickness of the inner wall between the through cavities exceeds at least at least twice the thickness of the outer side wall of each through cavity opposite the inner wall between the through cavities, while the outer wall of each through cavity from the front side is thicker by wall of the back side at least 1.2 times, each of the two outer side walls of the block is made with the possibility of its lower end surface to rest entirely on the end surface of the inner wall between the through cavities of the block in the downstream row, and serve as its support with its upper end surface the inner wall between the through cavities of the block in the upstream row. 2. The block according to claim 1, characterized in that it is made trapezoidal in cross section, while the thickness of the outer side walls decreases in the direction from the front side of the block to the back side. 3. The block according to claim 1, characterized in that each through cavity filled with drainage material is made tapering in cross section towards each of the outer walls and the inner wall.

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