Bidirectional reinforced geogrid

Abstract

A bidirectional reinforced geogrid includes a bidirectional geogrid with several grid holes. Two adjacent bidirectional geogrids overlap, with the grid holes aligned. A clamping unit is provided on the grid holes at the overlap. The clamping unit includes a base plate at the bottom of the lowest bidirectional geogrid, a positioning block on the base plate, and symmetrical plastic snap fasteners on opposite sides of the base plate, with snap connectors at the top of the snap fasteners. The positioning block is equipped with a positioning nail assembly that can be inserted downwards to the ground. The two bidirectional geogrids and the positioning block can be connected to the ground through the positioning nail assembly. The alignment of the grid holes at the overlap of the two bidirectional geogrids facilitates the insertion of the positioning block into the corresponding grid holes of the two bidirectional geogrids, providing a pre-limiting effect, and also allows the installation of the positioning nail assembly, which simultaneously clamps the two bidirectional geogrids to the ground.

Description

Technical Field

[0001] This utility model relates to the field of geogrid technology, specifically a bidirectional reinforced geogrid. Background Technology

[0002] In the field of civil engineering, bidirectional geogrids are widely used in large-area paving projects such as highways, railways, and slopes. However, due to the limitation of standard width, adjacent geogrids often need to be spliced ​​together during construction.

[0003] Currently, the main methods used in engineering practice for connection are overlapping binding or U-shaped nail fixing. Overlap binding requires multiple workers to work together, which is inefficient and time-consuming at each connection point, seriously affecting the construction progress. U-shaped nail fixing leaves gaps with the bidirectional geogrid, resulting in insufficient anchoring force, easy loosening and falling off, and it cannot compact the bidirectional geogrid towards the ground. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model provides a bidirectional reinforced geogrid.

[0005] The technical solution of this utility model is as follows: A bidirectional reinforced geogrid includes a bidirectional geogrid with several grid holes. Two adjacent bidirectional geogrids overlap and are aligned with each other. A clamping unit is provided on the grid hole at the overlap. The clamping unit includes a base plate located at the bottom of the lowest bidirectional geogrid. The base plate is provided with positioning blocks that are adapted to the geogrid holes. Plastic snap fasteners are symmetrically provided on both sides of the base plate. The snap fasteners are provided with snap connectors at the top. The bidirectional geogrid located above is provided with snap grooves that snap with the snap connectors. The positioning block is equipped with a positioning nail assembly that can be inserted downwards into the ground. The two bidirectional geogrids and the positioning block can be connected to the ground through the positioning nail assembly.

[0006] The positioning nail assembly is used to fasten the positioning block and two bidirectional geogrids to the ground. Specifically, the positioning block has a through hole, and the positioning nail assembly includes a positioning nail body that passes through the through hole. The upper part of the positioning nail body has a nail head, and the length of the nail head is greater than the inner diameter of the through hole.

[0007] The nail head is a long, rod-shaped structure, and its length is greater than the width of the grid holes.

[0008] Before connecting the two bidirectional geogrids, place the base plate with positioning blocks below the connection point of the bottom bidirectional geogrid, so that the positioning blocks are inserted into the corresponding geogrid holes. To prevent the nail heads from being too long and affecting the geogrid holes of the bottom bidirectional geogrid from passing through the positioning blocks, set the length of the nail head to be less than the length of the upper diagonal of the positioning block. When the nail head is not in use, rotate it to the position of the upper diagonal of the positioning block to store it. This will not affect the corresponding geogrid holes of the two bidirectional geogrids from passing through the same positioning block in sequence. Then, with the nail head above the top bidirectional geogrid, rotate the nail head so that the two ends of the nail head can overlap the outside of the geogrid holes. Hammer the nail head downwards to fix the two bidirectional geogrids to the ground through the positioning nail body.

[0009] To avoid excessive thickness of the nail head and positioning block stacking, which could interfere with construction, the upper surface of the positioning block is provided with a positioning groove that matches the nail head. The depth of the positioning groove is greater than the thickness of the nail head, thus reducing the overall thickness.

[0010] To facilitate hammering the nail head, a protrusion is provided in the middle of the upper surface of the nail head, and the thickness of the protrusion and the nail head is greater than the depth of the positioning groove.

[0011] Furthermore, the lower part of the positioning pin body is provided with multiple anti-reverse hooks.

[0012] To facilitate the quick connection of multiple compaction units to the bidirectional geogrid, the bottom plates of two adjacent compaction units are connected by a connecting plate, with the bottom surface of the connecting plate flush with the bottom surface of the bottom plate.

[0013] The specific structure of the snap-fit ​​connector is as follows: the snap-fit ​​connector is a triangular structure with an inclined surface at the top and a flat surface at the bottom. The bottom surface of the snap-fit ​​connector is provided with snap-fit ​​protrusions that are adapted to the snap-fit ​​groove.

[0014] The beneficial effects of this utility model are as follows: The grid holes at the joint of the two bidirectional geogrids are aligned, which makes it easy to insert the positioning block into the corresponding grid holes of the two bidirectional geogrids to pre-limit the two bidirectional geogrids. It also allows the installation of positioning nail assemblies on them. The positioning nail assemblies press the two bidirectional geogrids and the positioning block firmly to the ground at the same time, which significantly improves the connection strength and connection efficiency and avoids the slippage problem caused by traditional binding or U-shaped nail fixing. The base plate provides stable support to prevent localized sinking of the grid; the positioning block enables precise positioning and avoids construction deviation; the plastic snap fastener has elastic deformation capability, which facilitates quick snap-fitting, while also being corrosion-resistant and adaptable to complex geological environments. The nail head is located above the top bidirectional geogrid. Rotating the nail head allows both ends to overlap the outside of the geogrid holes. Hammering the nail head downwards fixes the two bidirectional geogrids to the ground via the positioning nail body. The nail head can rotate, so that it will not obstruct the geogrid holes from passing through the positioning block when not in use, simplifying the construction process. When in use, it can be quickly rotated to the working position for easy hammering and fixing, making the operation convenient and efficient. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the first structure; Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a top view; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the middle AA direction; Figure 5 for Figure 4 Enlarged structural diagram at point B; Figure 6 This is a partial front view; Figure 7 This is a schematic diagram of the second structure; Figure 8 for Figure 7 Enlarged structural diagram at point C; The components represented by the various reference numerals in the diagram are: 1. Upper bidirectional geogrid; 101. Snap-fit ​​groove; 2. Lower bidirectional geogrid; 3. Geogrid hole; 4. Base plate; 5. Positioning block; 501. Positioning groove; 6. Snap-fit ​​buckle; 601. Snap-fit ​​connector; 602. Inclined surface; 603. Snap-fit ​​protrusion; 7. Positioning nail body; 701. Nail head; 8. Protrusion; 9. Anti-reverse hook; 10. Connecting plate. Detailed Implementation

[0016] See Figure 1 and Figure 3 As shown, a bidirectional reinforced geogrid includes a bidirectional geogrid with several geogrid holes 3. Two adjacent bidirectional geogrids overlap, and the geogrid holes 3 of the two bidirectional geogrids are aligned. A clamping unit is provided on the geogrid holes 3 at the overlap. The upper bidirectional geogrid is called the upper bidirectional geogrid 1, and the lower bidirectional geogrid is called the lower bidirectional geogrid 2.

[0017] See Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the clamping unit includes a base plate 4 located at the bottom of the lower bidirectional geogrid 2. The base plate 4 has positioning blocks 5 adapted to the geogrid holes 3. Symmetrically arranged on opposite sides of the base plate 4 are plastic snap fasteners 6. The upper part of the snap fastener 6 has a snap connector 601, and the upper bidirectional geogrid 1 has a snap-fit ​​groove 101 that engages with the snap connector 601. The snap fastener 6 has the ability to elastically deform and can reset after the snap connector 601 engages with the snap-fit ​​groove 101. The snap connector 601 has a triangular structure with an inclined surface 602 at its upper end and a flat bottom surface. The bottom surface of the snap connector 601 has a snap-fit ​​protrusion 603 adapted to the snap-fit ​​groove 101.

[0018] The base plate 4 provides stable support to prevent local sinking of the grid; the positioning block 5 achieves precise positioning to avoid construction deviation; the plastic snap fastener 6 has elastic deformation capability, which facilitates quick snap-fitting, and is also corrosion-resistant and adaptable to complex geological environments.

[0019] The positioning block 5 is equipped with a positioning nail assembly that can be inserted downwards into the ground. The two bidirectional geogrids and the positioning block 5 can be connected to the ground through the positioning nail assembly.

[0020] See Figure 2 and Figure 4 As shown, the positioning nail assembly is used to fasten the positioning block 5 and two bidirectional geogrids to the ground. Specifically, the positioning block 5 has a through hole, and the positioning nail assembly includes a positioning nail body 7 passing through the through hole. The upper part of the positioning nail body 7 has a nail head 701, the length of which is greater than the inner diameter of the through hole. The nail head 701 is a long rod-shaped structure, and its length is greater than the width of the geogrid hole 3. To avoid the nail head 701 and the positioning block 5 having an excessively high combined thickness, which would interfere with construction, the upper end face of the positioning block 5 has a positioning groove 501 that matches the nail head 701. The depth of the positioning groove 501 is greater than the thickness of the nail head 701, reducing the overall thickness. To facilitate hammering the nail head 701, a protrusion 8 is provided in the middle of the upper end face of the nail head 701. The thickness of the protrusion 8 and the nail head 701 is greater than the depth of the positioning groove.

[0021] See Figure 8 As shown, the lower part of the positioning nail body 7 is provided with multiple anti-retraction hooks 9. The anti-retraction hooks 9 enable the positioning nail to form a firm engagement with the soil after it is driven into the ground, effectively preventing the positioning nail from retracting under vibration or load, and significantly enhancing long-term stability.

[0022] Before connecting the two bidirectional geogrids, first place the base plate 4 with positioning block 5 below the connection of the lower bidirectional geogrid 2, so that the positioning block 5 is inserted into the corresponding geogrid hole 3. Then, insert the geogrid hole 3 of the upper bidirectional geogrid 1 into the corresponding positioning block 5, so that the nail head 701 on the positioning block 5 protrudes from the uppermost bidirectional geogrid. To prevent the nail head 701 from being too long and affecting the geogrid hole 3 of the lowermost bidirectional geogrid from passing through the positioning block 5, the length of the nail head 701 is set to be less than the length of the upper end face diagonal of the positioning block 5. When the nail head 701 is not in use, rotate it to the position of the upper end face diagonal of the positioning block 5 to play a storage role. This will not affect the corresponding geogrid holes 3 of the two bidirectional geogrids from passing through the same positioning block 5 in sequence. Then, with the nail head 701 above the uppermost bidirectional geogrid, rotate the nail head 701 so that the two ends of the nail head 701 can overlap the outside of the geogrid hole 3. Hammer the nail head 701 downwards, and fix the two bidirectional geogrids to the ground through the positioning nail body 7.

[0023] See Figure 7 and Figure 8 As shown, in order to facilitate the quick connection of multiple compaction units to the bidirectional geogrid, the base plates 4 of two adjacent compaction units are connected by a connecting plate 10. The connecting plate 10 connects the adjacent base plates 4 to ensure that the multiple compaction units are aligned synchronously. The bottom surface of the connecting plate 10 is flush with the bottom surface of the base plate 4, which avoids the local protrusions 8 from affecting the flatness of the geogrid and ensures the construction quality.

Claims

1. A bidirectional reinforced geogrid, comprising a bidirectional geogrid having a plurality of geogrid openings (3), characterized in that, Two adjacent bidirectional geogrids overlap and are aligned, and the grid holes (3) of the two bidirectional geogrids are provided with clamping units on the grid holes (3) at the overlap. The clamping unit includes a base plate (4) located at the bottom of the lowest bidirectional geogrid. The base plate (4) is provided with positioning blocks (5) that are adapted to the geogrid holes (3). Plastic snap fasteners (6) are symmetrically provided on both sides of the base plate (4). A snap fastener (601) is provided on the upper part of the snap fastener (6). The bidirectional geogrid located above is provided with a snap fastening groove (101) that snaps into the snap fastener (601). The positioning block (5) is provided with a positioning nail assembly that can be inserted downwards into the ground. The two bidirectional geogrids and the positioning block (5) can be connected to the ground through the positioning nail assembly.

2. The bidirectional reinforced geogrid according to claim 1, characterized in that, The positioning block (5) is provided with a through hole, and the positioning pin assembly includes a positioning pin body (7) inserted in the through hole. The upper part of the positioning pin body (7) is provided with a pin cap (701), and the length of the pin cap (701) is greater than the inner diameter of the through hole.

3. The bidirectional reinforced geogrid according to claim 2, wherein, The nail head (701) is a long rod-shaped structure, and the length of the nail head (701) is greater than the width of the grid hole (3).

4. The bidirectional reinforced geogrid according to claim 2, wherein, The length of the nail head (701) is less than the length of the diagonal of the upper end face of the positioning block (5).

5. The bidirectional reinforced geogrid according to claim 2, wherein, The upper surface of the positioning block (5) is provided with a positioning groove (501) that is adapted to the nail head (701), and the depth of the positioning groove (501) is greater than the thickness of the nail head (701).

6. The bidirectional reinforced geogrid according to claim 5, wherein, The upper surface of the nail head (701) has a protrusion (8) in the middle, and the thickness of the protrusion (8) and the nail head (701) is greater than the depth of the positioning groove (501).

7. The bidirectional reinforced geogrid according to claim 2, wherein, The lower part of the positioning pin body (7) is provided with multiple anti-reverse hooks (9).

8. The bidirectional reinforced geogrid according to claim 1, wherein, The bottom plates (4) of two adjacent pressing units are connected by a connecting plate (10), and the bottom surface of the connecting plate (10) is flush with the bottom surface of the bottom plate (4).

9. The bidirectional reinforced geogrid according to claim 8, wherein, The snap-fit ​​connector (601) has a triangular structure with an inclined surface (602) on its upper end and a flat surface on its bottom. The bottom surface of the snap-fit ​​connector (601) is provided with snap-fit ​​protrusions (603) that are adapted to the snap-fit ​​groove (101).

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