BLANK FOR CELLULAR BULK NON-WELDED SEAMLESS GEOGRID Russian patent published in 2018 - IPC E02D17/20 

FIELD: construction.

SUBSTANCE: invention relates to construction, namely to construction of geogrids, and can find application in road construction, in particular for strengthening earthen slopes, especially having a sufficiently large angle of inclination, as well as to strengthen coastal lines and channels of reservoirs, and some other areas of construction, requiring increased stable indicators for strength and durability. Workpiece for a cellular, volumetric non-welded seamless geogrid is made of a polymer tape of a given thickness t, provided with cuts that are at the same distance from each other, arranged in rows R₁, R₂…R_n with the displacement of the cut lines. Foregoing blank is characterized by making the cuts arc-shaped in the form of a single arc or a combination of arcs of the same length and geometric characteristics with a given chord length and a central angle α, ranging from 1 to 90°. Ratio of the length of the cut representing the length of the chord of the arc-shaped cut or the total length of the chords of arc-shaped cuts to the thickness of the polymer tape t is (100–600):1, and displacement of the cut lines is characterized by a ratio of the lengths of the cut lines equal to 1:(0.3–0.9).

EFFECT: technical result consists in increasing the strength of the workpiece for a cellular, volumetric non-welded seamless geogrid, and, accordingly, the geogrid as a whole, as well as improving the drainage properties of the geogrid, increasing its ability to be retained on slopes.

5 cl, 4 dwg