REINFORCED SOIL RETAINING WALL AND FACING BLOCK FROM CONCRETE FOR MORTARLESS MASONRY OF RETAINING WALL Russian patent published in 2025 - IPC E02D29/02 

FIELD: construction.

SUBSTANCE: invention relates to the field of construction, namely to the structure of retaining walls from blocks, and can be used in building structures that provide reinforcement of soil slopes. Armoured soil retaining wall includes facing blocks of concrete, installed on each other with an offset by half of the block relative to the lower row, wherein flexible reinforcing material is fixed in blocks overlapped by upper row of lower rows by means of fixing tubes made of polymer material. Each of the blocks of the retaining wall in the plan has the shape of an isosceles trapezoid with chamfers on the inner corners, the larger base of which faces the front side of the facing block, as well as two vertical through cavities, each of which in the cross section is made according to the shape having chamfers at the corners of the rectangular trapezoid, the facing each other walls of the vertical through cavities are mutually parallel and form a central wall of the same thickness along its length, and their spaced apart walls are parallel to the side walls of the facing block, have a thickness equal to their length, which is less than the thickness of the central wall, at the same time the side walls are inclined to the back side of the block. In the body of the facing unit between its front side and the vertical cavities in the alignment of the vertical cavities, through and blind vertical mounting holes are made, in which polymer tubes-pins are placed during installation for mutual arrangement of units along vertical with displacement back relative to lower row of units and with displacement along horizontal line by half of unit along length of row, wherein each through hole is located in the angular part of the unit between the corresponding blind hole and the corresponding side wall, has a larger diameter than the blind one, and distance between blind holes exceeds distance between corresponding through and blind holes, wherein the vertical axis of each through hole is offset to the front side of the unit relative to the vertical plane passing through the vertical axes of the blind holes by a value not exceeding the diameter of the blind hole, which is less than the diameter of the through hole. In the body of the facing block, on its upper side, a longitudinal chute is made open from the ends, in which there are longitudinally arranged fixing tubes made of polymer material, which are fixed in it, wherein the chute is formed by a side wall and a part of its bottom with a smaller width, continuously located in a larger thickness of the front part of the body of the facing unit from the side of the blind vertical mounting holes to the vertical through cavities, and a larger part of its bottom and another side wall, discretely located in the side and central walls. Tubes fixing reinforcing material longitudinally located in the chute sequentially envelope the reinforcing material with release beyond the wall of its ends loaded with backfill soil, fixed in the soil with anchors.

EFFECT: improving reliability of facing block from concrete for mortarless masonry of retaining wall with possibility to use woven geotextiles, geocomposites and geogrids as reinforcing geosynthetic materials.

4 cl, 8 dwg