Extruded material type earthwork standard room connecting structure

Abstract

The utility model relates to an extruded material type earthwork standard room connecting structure which comprises two sheets, the two sheets are attached at the connecting position to form a double-layer sheet, at least one small sheet set is arranged on the double-layer sheet, the small sheet set comprises a plurality of separation seams, the double-layer sheet is divided into a plurality of small sheets distributed in the width direction of the sheets through the separation seams, and the small sheets are arranged in the width direction of the sheets. The small pieces protrude outwards to form arc-shaped protruding pieces, the adjacent small pieces in the small piece set protrude towards the two sides of the double-layer sheet in the opposite directions respectively, the double-layer sheet is wrapped with the extrusion block in the circumferential direction, and the combination portions of the small pieces and the double-layer sheet are located in the extrusion block. The sheet at the joint of the extrusion block and the joint has a larger contact area, and the sheet at the joint is not damaged, so that the geocell joint has a higher joint mechanical property index, the connection strength is high, and the production cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of geocells, in particular to an extruded material type geocell connection structure. Background Art

[0002] Geocell is a geotechnical reinforcement material with a honeycomb structure formed by strong connections of high-strength ribs. It is flexible and can be folded up during transportation. It can be opened and filled with soil, concrete or other fillers during use to form a structure with strong lateral restraint and rigidity. It can be used as a cushion to increase the bearing capacity of soft foundations, or it can be laid on slopes to form slope protection structures, and it can also be used to build retaining structures, etc.

[0003] With the widespread application of geocells in the field of reinforcement, the requirements for the mechanical indicators of plastic geocell nodes are getting higher and higher. The geocells connected by traditional U-shaped steel nails not only have low peel strength and shear strength of the nodes, but also the plug-in U-shaped steel nails are easily corroded, causing the nodes to spread apart, and losing the basic function of the geocell to prevent the side limit of the filler. Therefore, improving the corrosion resistance of geocell node plug-ins and significantly improving the long-term peel strength and long-term shear strength of plastic geocell nodes are technical problems that need to be solved urgently today.

[0004] Invention patent CN 112726661B discloses a reinforced geocell fixing structure, which fixes the cell sheet at the node through a tenon-and-clamp structure, and can improve the peeling force and shear force of the cell node. However, the tenon-and-clamp and fixing pin of the node connector are made of PET or PA plastic by injection molding. PET plastic produces an irreversible decomposition reaction under the action of alkaline or salt-corrosion fillers, which causes the cell node to spread and fail; PA produces an irreversible decomposition reaction under the action of acidic or salt-corrosion fillers, which causes the cell node to spread and fail. A cheap and acid, alkali or salt-corrosion-resistant polyolefin plastic is used as a geocell node connector, which can provide long-term high strength for the geocell node in any filler environment, thereby solving the problems in the background technology. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and provides an extruded material type geocell connection structure.

[0006] The utility model is realized through the following technical solutions. It provides an extrusion material type geocell connection structure, which includes two sheets. The two sheets are joined at the connection part to form a double-layer sheet. At least one small sheet group is provided on the double-layer sheet. The small sheet group includes a plurality of dividing seams. The plurality of dividing seams divide the double-layer sheet into a plurality of small sheets arranged along the width direction of the sheet. The small sheets bulge outwards to form arc-shaped convex sheets. The adjacent small sheets in the small sheet group bulge in opposite directions towards both sides of the double-layer sheet. It also includes an extrusion block that circumferentially wraps the double-layer sheet at the connection part. The joint part of the small sheet and the double-layer sheet is located inside the extrusion block.

[0007] In this solution, the extrusion block is manufactured by plastic extrusion or injection molding processes. When injection molding, the double-layer sheet and part or most of the arc-shaped convex sheets are wrapped inside the extrusion block, thereby improving the connection strength at the geocell node connection part.

[0008] As an optimization, arc-shaped protrusions are provided on both sides of the extrusion block. The arc-shaped protrusions are in contact with the inner sides of the arc-shaped convex sheets. In this solution, the arc-shaped protrusions provided are in contact with the inner sides of the arc-shaped convex sheets, so that when the sheet is subjected to tension, the arc-shaped convex sheets are pressed against the arc-shaped protrusions, improving the tensile strength.

[0009] As an optimization, the width of the extrusion block is greater than the width of the sheet. Thus, a good wrapping effect is achieved.

[0010] As an optimization, two small sheet groups are provided. The number of small sheets in the two small sheet groups is equal and they are correspondingly arranged. The corresponding small sheets in the two small sheet groups bulge towards the same side. In this solution, the connection at the geocell node connection part is realized through two small sheet groups, and a whole node connection part is formed by wrapping the two small sheet groups with one extrusion block, greatly improving the mechanical properties of the geocell node connection part.

[0011] As an optimization, two small sheet groups are provided. The number of small sheets in the two small sheet groups is equal and they are correspondingly arranged. The corresponding small sheets in the two small sheet groups bulge in opposite directions towards both sides. In this solution, the connection at the geocell node connection part is realized through two small sheet groups, and a whole node connection part is formed by wrapping the two small sheet groups with one extrusion block, greatly improving the mechanical properties of the geocell node connection part.

[0012] As an optimization, the thickness of the extrusion block is 2.2 - 50 times the thickness of the sheet. Thus, the wrapping effect and the mechanical properties of the geocell node connection part are improved.

[0013] As an optimization, the depth of the arc-shaped convex sheet embedded in the extrusion block is 0.01 mm - 10 mm. In this solution, the small sheets are completely located inside the extrusion block, further improving the mechanical properties of the geocell node.

[0014] As an optimization, at least one of the two sheets is grid-shaped, thereby improving the bite between the geocell and the soil.

[0015] The beneficial effects of the present utility model are as follows:

[0016] Compared with the traditional geocell, the sheet material at the connection between the extrusion block and the node of the present utility model has a larger contact area, and the sheet material at the node connection is not damaged, enabling the geocell node to have higher node mechanical property indexes.

[0017] The initial mechanical property of the geocell node can be improved by increasing the effective volume of the extrusion block or by arranging reinforcing ribs in the extrusion block. Using polyethylene or polypropylene injection-molded plastic blocks can achieve or exceed the mechanical properties of using engineering plastics (such as PA or PET or ABS, etc.), effectively solving the defects that the PA or PET connectors of the mortise and tenon joint connection method geocell nodes in the prior art are not resistant to acid or alkali corrosion and not resistant to salt spray corrosion, and the long-term initial strength of the geocell node can be maintained.

[0018] The extrusion block of the geocell node adopts the extrusion process, effectively improving the working efficiency of processes such as mortise and tenon and plug-in parts of the geocell node. In particular, it can overcome the defects of less injection volume per single injection molding machine or too high price of a single injection molding machine in the injection molding process, and further reduce the production cost of the geocell. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of Embodiment 1 of the present utility model without an extrusion block;

[0021] Figure 3 It is a top view of Embodiment 1 of the present utility model without an extrusion block;

[0022] Figure 4 It is a schematic structural diagram of the extrusion block of Embodiment 1 of the present utility model;

[0023] Figure 5 It is a schematic structural diagram of another extrusion block of Embodiment 1 of the present utility model;

[0024] Figure 6 It is a schematic structural diagram of Embodiment 2 of the present utility model without an extrusion block;

[0025] Figure 7 It is a top view of Embodiment 2 of the present utility model without an extrusion block;

[0026] Figure 8 It is a schematic structural diagram of Embodiment 3 of the present utility model;

[0027] Figure 9 It is a schematic structural diagram of Embodiment 3 of the present utility model without an extrusion block;

[0028] As shown in the figure:

[0029] 1. Sheet, 2. Small piece, 3. Extrusion block, 4. Arc-shaped protrusion. Detailed implementation mode

[0030] To clearly illustrate the technical features of this solution, the following will elaborate on this solution through specific implementation modes.

[0031] Example 1:

[0032] As Figures 1-5 shown, an extrusion material type geogrid connection structure of the present utility model includes two sheets 1, at least one of the two sheets 1 is grid-shaped, and being grid-shaped means that there are mesh holes distributed on the sheet 1. The two sheets 1 are attached at the connection to form a double-layer sheet, and the two sheets are separated in the areas outside the connection, thereby forming the grid structure of the geogrid. The solution of forming a geogrid with multiple sheets and multiple connection structures is the prior art.

[0033] In this example, one of the two sheets 1 is grid-shaped and the other sheet 1 is not grid-shaped; in other implementation modes of this example, both sheets 1 are grid-shaped.

[0034] At least one small piece group is provided on the double-layer sheet. In this example, two small piece groups are provided, and the two small piece groups are arranged on the double-layer sheet along the length direction of the sheet 1.

[0035] The small piece group includes multiple separation seams. The length direction of the separation seams is parallel to the length direction of the sheet 1, and the multiple separation seams of each small piece group are arranged along the width direction of the sheet 1, so that the double-layer sheet is divided into multiple small pieces 2 arranged along the width direction of the sheet 1 through the multiple separation seams, and the width of each small piece 2 is uniform.

[0036] The small piece 2 bulges outwards to form an arc-shaped convex piece. The arc-shaped convex piece is a double-layer arc structure. As Figure 2 . 3 shown, the adjacent small pieces 2 in the small piece group bulge in opposite directions to both sides of the double-layer sheet. In this example, two small piece groups are provided, the number of small pieces 2 in the two small piece groups is equal and they are arranged correspondingly, and the corresponding small pieces 2 in the two small piece groups bulge in opposite directions to both sides.

[0037] It also includes an extrusion block 3 that wraps the double-layer sheet circumferentially. During processing, first the small piece 2 is processed to form an arc-shaped convex piece, and then the extrusion block 3 is formed by plastic extrusion or injection molding at the connection position. The width of the extrusion block 3 is greater than the width of the sheet 1, and the thickness of the extrusion block 3 is 2.2 - 50 times the thickness of the sheet 1. Therefore, the extrusion block 3 can wrap the double-layer sheet and at the same time fill the inner area of the arc-shaped convex piece.

[0038] The joint of the small piece 2 and the double-layer sheet is located within the extrusion block 3, that is, the position where the arc-shaped convex piece is connected to the double-layer sheet body is located within the extrusion block 3, enhancing the connection strength at this location. The protruding end of the arc-shaped convex piece protrudes outside the extrusion block 3. The protruding end of the arc-shaped convex piece refers to the position of the arc region away from the sheet.

[0039] Arc-shaped protrusions 4 are provided on both sides of the extrusion block 3, and the arc-shaped protrusions 4 are in contact with the inner side of the arc-shaped convex piece. The arc-shaped protrusions 4 can be Figure 4 continuous as shown, or Figure 5 individually provided at the position of the arc-shaped convex piece as shown.

[0040] Embodiment 2:

[0041] As Figures 6-7 shown, the difference between this embodiment and Embodiment 1 is that:

[0042] Neither of the two sheets 1 is provided with a grid pattern. There are two sets of small pieces at the joint. The number of small pieces 2 in the two sets of small pieces is equal and they are correspondingly arranged. The corresponding small pieces 2 in the two sets of small pieces protrude to the same side.

[0043] Embodiment 3:

[0044] As Figures 8-9 shown, the difference between this embodiment and Embodiment 1 is that:

[0045] Neither of the two sheets 1 is provided with a grid pattern. There is one set of small pieces at the joint. In other embodiments of this embodiment, two-thirds of the thickness of the small piece 2 is embedded within the extrusion block 3.

[0046] Embodiment 4:

[0047] The difference between this embodiment and Embodiment 1 is that:

[0048] The outer side of the arc-shaped convex piece is located within the extrusion block, that is, the entire arc-shaped convex piece is located within the extrusion block.

[0049] The depth value of the arc-shaped convex piece embedded within the extrusion block is 0.01 mm - 10 mm. The upper and lower two sides (in the thickness direction of the small piece 2) of the arc-shaped convex piece are all buried and wrapped by the extrusion block 3. The distance between the protruding end position of the arc-shaped convex piece and the surface of the extrusion block is 0.01 mm - 10 mm.

[0050] Certainly, the above description is not limited to the above examples. The technical features not described in this utility model can be realized by or adopted from the prior art, and will not be elaborated here. The above embodiments and the accompanying drawings are only used to illustrate the technical solutions of this utility model and are not a limitation to this utility model. The detailed description of this utility model is made with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions or substitutions made by those of ordinary skill in this technical field within the substantial scope of this utility model do not depart from the purpose of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. An extruded geocell connection structure, comprising two sheets (1), characterized in that: Two sheets (1) are bonded together at a connection to form a double-layer sheet. The double-layer sheet is provided with at least one small sheet group. The small sheet group includes a plurality of separation slits. The plurality of separation slits divide the double-layer sheet into a plurality of small sheets (2) arranged along the width direction of the sheet (1). The small sheets (2) protrude outward to form arc-shaped protrusions. Adjacent small sheets (2) in the small sheet group protrude in opposite directions to the two sides of the double-layer sheet. The small sheet group also includes an extrusion block (3) that wraps the double-layer sheet at the connection in a circumferential direction. The junction between the small sheet (2) and the double-layer sheet is located inside the extrusion block (3).

2. The extruded material geocell connection structure according to claim 1, characterized in that: Arc-shaped protrusions (4) are provided on both sides of the extrusion block (3), and the arc-shaped protrusions (4) are fitted with the inner side of the arc-shaped convex piece.

3. The extruded material geocell connection structure according to claim 1, characterized in that: The width of the extrusion block (3) is greater than the width of the sheet (1).

4. The extruded material geocell connection structure according to claim 1, characterized in that: There are two small piece groups, the small pieces (2) in the two small piece groups are equal in number and are arranged correspondingly, and the corresponding small pieces (2) in the two small piece groups protrude towards the same side.

5. The extruded material geocell connection structure according to claim 1, characterized in that: There are two small piece groups, the small pieces (2) in the two small piece groups are equal in number and are arranged correspondingly, and the corresponding small pieces (2) in the two small piece groups protrude in opposite directions on both sides.

6. The extruded material geocell connection structure according to claim 1, characterized in that: The thickness of the extruded block (3) is 2.2-50 times the thickness of the sheet (1).

7. The extruded material geocell connection structure according to claim 1, characterized in that: The arc-shaped protrusion is embedded in the extrusion block (3) to a depth of 0.01 mm to 10 mm.

8. The extruded material geocell connection structure according to claim 1, characterized in that: At least one of the two sheets (1) is in a grid shape.

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