Geogrid

Abstract

The utility model provides a geogrid, which belongs to the technical field of grids and comprises a plurality of longitudinal bars, a plurality of crosspieces, a plurality of inclined bars and a plurality of grids. Each longitudinal bar continuously extends and is parallel to each other; each crosspiece is vertically crossed and connected with the corresponding longitudinal bar, and two parts of the crosspieces extending out of the overlapping part of the crosspieces and the longitudinal bars are symmetrically arranged; the crosspieces located on the same longitudinal bar are arranged at equal intervals, and the crosspieces located on the adjacent longitudinal bars are arranged alternately. The distance W between the adjacent longitudinal bars is greater than the length of the crosspieces; each inclined rib is correspondingly connected with the crosspieces on the adjacent longitudinal ribs; the inclined ribs are thicker than the longitudinal ribs and narrower than the longitudinal ribs; a plurality of isosceles triangle grids are defined by the longitudinal bars, the crosspieces and the inclined bars; the crosspieces limit the vertexes of the grid, the longitudinal ribs limit the bottom edges of the grid, and the two inclined ribs limit the two isosceles edges of the grid. The geogrid solves the technical problem that an existing geogrid is poor in reinforcement effect, and has the advantage of being good in reinforcement effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of grids, and in particular relates to a geogrid. Background Art

[0002] The reinforcement effect of geogrid not only depends on the strength characteristics of the grid material itself, but also is affected by the interaction force between the grid and the filler. This interaction force is mainly composed of two major factors: friction and bite force, which together determine the interaction effect between the grid and the filler.

[0003] Currently, the interlocking force between geogrids and fillers is primarily concentrated and dependent on the crosspieces within the grid's mesh structure. However, the relatively small crosspieces of existing geogrids, combined with the generally narrow and long meshes, limit their ability to lock the filler. This lack of interlocking force is particularly pronounced with large fillers, compromising the overall reinforcement effect. Utility Model Content

[0004] The details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0005] The utility model provides a geogrid, which solves the technical problem of poor reinforcement effect of the existing geogrid and has the characteristic of good reinforcement effect.

[0006] The utility model discloses a geogrid, comprising a plurality of longitudinal bars, a plurality of transverse bars, a plurality of oblique bars, and a plurality of grids; each of the longitudinal bars extends continuously and is parallel to each other; each of the transverse bars is vertically cross-connected with the longitudinal bars, and the two parts of the transverse bars extending out of the overlapped positions of the transverse bars and the longitudinal bars are symmetrically arranged; the transverse bars located on the same longitudinal bar are arranged at equal intervals, and the transverse bars located on adjacent longitudinal bars are arranged alternately; the spacing W between adjacent longitudinal bars is greater than the length of the transverse bars; the spacing L between the transverse bars located on the same longitudinal bar and the W satisfy the following relationship: L:W=100:10-50; each of the oblique bars is correspondingly connected to the transverse bars on the adjacent longitudinal bars; the thickness of the oblique bars is greater than the thickness of the longitudinal bars, and the width of the oblique bars is less than the width of the longitudinal bars; the longitudinal bars, the transverse bars and the oblique bars define a plurality of isosceles triangle grids; the transverse bars define the vertices of the grids, the longitudinal bars define the bottom sides of the grids, and the two oblique bars define two isosceles sides of the grids.

[0007] In some embodiments, two symmetrical oblique bars extend outward from both ends of a horizontal bar on a longitudinal reinforcement, and the other ends of the two oblique bars connecting the same end of the horizontal bar are each connected to one end of two adjacent horizontal bars on another adjacent longitudinal reinforcement.

[0008] In some embodiments, the W is selected from any value between 25 and 50 mm.

[0009] In some embodiments, L:W=100:25-35.

[0010] In some embodiments, the height w2 of the grid and the length w1 of the crossbar portion extending from the intersection of the crossbar and the longitudinal rib satisfy the following relationship: w2:w1=2-5.

[0011] In some embodiments, the w1 is selected from any value between 5 and 15 mm, and the w2 is selected from any value between 15 and 30 mm.

[0012] In some embodiments, the width w3 of the connection portion between the cross bar and the longitudinal rib and the width w1 satisfy the following relationship: w3:w1=0.9-1.

[0013] In some embodiments, the width of the cross piece: the width of the longitudinal rib: the width of the oblique rib = 1: 0.3-0.5: 0.08-0.16.

[0014] In some embodiments, the thickness of the longitudinal ribs: the thickness of the oblique ribs = 1:1.1-1.5.

[0015] In some embodiments, the crosspiece has a thickness selected from any value between 2.5 and 15 mm.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model proposes a geogrid, in which the horizontal bars are arranged in a staggered manner and extend non-continuously. They are connected to each other by diagonal bars, thereby increasing the diagonal and transverse strength. At the same time, by limiting the shape of the grid and coordinating the width and thickness relationship between the diagonal bars and the longitudinal bars, when used for soil fixation, it has the effect of tightening as it is pulled, greatly improving the bite force between the filler and the geogrid, thereby ensuring a good reinforcement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of the structure of the geogrid provided by an embodiment of the utility model;

[0020] In the above figures: 1. Longitudinal reinforcement; 2. Horizontal bars; 3. Diagonal reinforcement; 4. Grid. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] The embodiment of the utility model provides a geogrid, Figure 1 Schematic diagram of the structure of the geogrid according to an embodiment of the present invention. Figure 1 As shown, the geogrid includes a plurality of longitudinal bars 1, a plurality of cross bars 2, a plurality of oblique bars 3, and a plurality of grids 4; each longitudinal bar 1 extends continuously and is parallel to each other; each cross bar 2 is connected to the longitudinal bar 1 perpendicularly, and the cross bars 2 extend out of the two parts of the overlapped portion of the cross bar 2 and the longitudinal bar 1 and are symmetrically arranged; the cross bars 2 located on the same longitudinal bar 1 are arranged at equal intervals, and the cross bars 2 located on adjacent longitudinal bars 1 are arranged alternately; the spacing W between adjacent longitudinal bars 1 is greater than the length of the cross bar 2; the spacing L and W between the cross bars 2 located on the same longitudinal bar 1 satisfy the following relationship: L:W=100:10-50; each oblique bar 3 is connected to the cross bar 2 on the adjacent longitudinal bar 1; the thickness of the oblique bar 3 is greater than the thickness of the longitudinal bar 1, and the width of the oblique bar 3 is less than the width of the longitudinal bar 1; the longitudinal bar 1, the cross bar 2 and the oblique bar 3 define a plurality of isosceles triangle grids 4; the cross bar 2 defines the vertex of the grid 4, the longitudinal bar 1 defines the base of the grid 4, and the two oblique bars 3 define the two isosceles sides of the grid 4. It is understandable that the L:W ratio may also be 100:20, 100:30, 100:40, and any point ratio within the range.

[0023] The geogrid crosspieces 2 provided by the present invention are arranged in a staggered manner, and the crosspieces 2 extend discontinuously and are connected to each other through the diagonal bars 3, thereby increasing the diagonal and transverse strength and having better adaptability in complex practical application processes. At the same time, by limiting the shape of the grid 4 and coordinating the width and thickness relationship between the diagonal bars 3 and the longitudinal bars 1, when used for soil fixation, it has the effect of tightening, greatly improving the bite force between the filler and the geogrid, thereby ensuring a good reinforcement effect.

[0024] In some embodiments, two symmetrical oblique bars 3 extend outward from both ends of a crossbar 2 on a longitudinal reinforcement 1, and the other ends of the two oblique bars 3 connecting the same end of the crossbar 2 are connected to one end of two adjacent crossbars 2 on another adjacent longitudinal reinforcement 1.

[0025] In some embodiments, W is selected from any value between 25 and 50 mm. It is understood that W can also be selected from 30 mm, 35 mm, 40 mm, 45 mm, and any value within that range. Furthermore, L:W = 100:25-35. Conventional unidirectional geogrids have large spacing between the rungs 2, and their ability to protect soil from erosion is limited after aging of the internal earthbags. The geogrid provided by this technical solution has a relatively uniform mesh 4 with a small aspect ratio, resulting in enhanced protection.

[0026] In some embodiments, the height w2 of the mesh 4 and the length w1 of the crosspiece 2 extending beyond the intersection of the crosspiece 2 and the longitudinal reinforcement 1 satisfy the following relationship: w2:w1 = 2-5. Furthermore, w1 is selected from any value between 5 and 15 mm, and w2 is selected from any value between 15 and 30 mm. It is understood that w2:w1 can also be 3 or 4, w1 can also be selected from 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, and any value within their ranges, and w2 can also be selected from 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, and any value within their ranges. A wider "shoulder" (w1) and larger pores (w2) allow for lateral contraction when subjected to longitudinal force, increasing engagement with the soil and enabling larger soil particles to be embedded within the pores of the mesh 4.

[0027] In some embodiments, the width w3 and w1 of the connection portion between the crosspiece 2 and the longitudinal reinforcement 1 satisfy the following relationship: w3:w1=0.9-1. This technical solution further defines the relationship between the width w3 and w1 of the longitudinal reinforcement 1 to achieve longitudinal overlap of the geogrid.

[0028] In some embodiments, the width of the crosspiece 2: the width of the longitudinal rib 1: the width of the oblique rib 3 = 1: 0.3-0.5: 0.08-0.16.

[0029] In some embodiments, the thickness of the longitudinal reinforcement 1:the thickness of the oblique reinforcement 3=1:1.1-1.5.

[0030] In some embodiments, the thickness of the crosspiece 2 is selected from any value between 2.5 and 15 mm. It is understood that the thickness of the crosspiece 2 can also be 5 or 10 mm, or any value within the range thereof.

[0031] The above-mentioned geogrid can be used for the reinforcement of slopes and retaining walls of roads, railways, etc., and can ensure a good reinforcement effect. It should be noted that for products with the same strength, the increase in the number of longitudinal crosspieces 2 and the increase in the thickness of the crosspiece 2 are conducive to improving the bite ability of the product with the soil and better exerting the reinforcement effect of the main reinforcement. The mesh size difference of the above-mentioned geogrid provided by the utility model is small in the horizontal and vertical directions, and the horizontal size is increased by more than 2 times, which increases the scope of application for large-particle fillers. In addition, the oblique reinforcement 3 is relatively flexible and easy to bend while ensuring the oblique strength, so it will not restrict the growth of plants.

[0032] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A geogrid, characterized in that: include a plurality of longitudinal ribs, each of the longitudinal ribs extending continuously and parallel to each other; A plurality of crossbars, each crossbar being perpendicularly connected to the longitudinal reinforcement, and the crossbars extending out of the two portions where the crossbars overlap the longitudinal reinforcements are symmetrically arranged; the crossbars on the same longitudinal reinforcement are arranged at equal intervals, and the crossbars on adjacent longitudinal reinforcements are arranged alternately; the spacing W between adjacent longitudinal reinforcements is greater than the length of the crossbar; the spacing L between the crossbars on the same longitudinal reinforcement and W satisfy the following relationship: L:W = 100:10-50; A plurality of oblique ribs, each of which corresponds to and connects the horizontal bars on adjacent longitudinal ribs; the thickness of the oblique ribs is greater than the thickness of the longitudinal ribs, and the width of the oblique ribs is less than the width of the longitudinal ribs; A plurality of grids, wherein the longitudinal bars, the cross bars and the oblique bars define a plurality of isosceles triangle grids; the cross bars define the vertices of the grids, the longitudinal bars define the bases of the grids, and the two oblique bars define two isosceles sides of the grids.

2. A geogrid according to claim 1, characterized in that: Two symmetrical oblique bars extend outward from both ends of a horizontal bar on a longitudinal bar, and the other ends of the two oblique bars connected to the same end of the horizontal bar are connected to one end of two adjacent horizontal bars on another adjacent longitudinal bar.

3. The geogrid according to claim 1, characterized in that: The W is selected from any value between 25 and 50 mm.

4. The geogrid according to claim 3, characterized in that: L:W=100:25-35.

5. The geogrid according to claim 1, characterized in that: The height w2 of the grid and the length w1 of the crossbar portion extending out from the intersection of the crossbar and the longitudinal reinforcement satisfy the following relationship: w2:w1=2-5.

6. The geogrid according to claim 5, characterized in that: The w1 is selected from any value between 5 and 15 mm, and the w2 is selected from any value between 15 and 30 mm.

7. The geogrid according to claim 5, characterized in that: The width w3 of the connection portion between the transverse bar and the longitudinal reinforcement satisfies the following relationship with w1: w3:w1=0.9-1.

8. The geogrid according to claim 1, characterized in that: The width of the horizontal bar: the width of the longitudinal reinforcement: the width of the oblique reinforcement = 1: 0.3-0.5: 0.08-0.

16.

9. The geogrid according to claim 1, characterized in that: The thickness of the longitudinal reinforcement: the thickness of the oblique reinforcement = 1:1.1-1.

5.

10. The geogrid according to claim 1, characterized in that: The thickness of the crosspiece is selected from any value between 2.5 and 15 mm.

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