FRP reinforced bamboo anchor assembly

Abstract

The invention discloses a bamboo anchor rod assembly reinforced with FRP, the bamboo anchor rod assembly comprising: a bamboo anchor rod and an FRP reinforcement layer, the FRP reinforcement layer comprising a matrix and a fiber structure arranged on the matrix, the FRP reinforcement layer being arranged on the bamboo anchor rod, and the FRP reinforcement layer being connected to the bamboo anchor rod through an adhesive layer. According to the bamboo anchor rod assembly reinforced with FRP in an embodiment of the invention, by arranging the FRP reinforcement layer on the bamboo anchor rod, the structural strength of the bamboo anchor rod assembly can be improved, the corrosion resistance of the bamboo anchor rod assembly can be enhanced, the expansion of cracks on the bamboo anchor rod can be effectively suppressed, and the durability of the bamboo anchor rod assembly can be improved, thereby effectively improving the bearing capacity of the bamboo anchor rod and extending the service life of the bamboo anchor rod.

Description

Technical Field

[0001] The invention relates to the field of anchor rods, in particular to a bamboo anchor rod assembly reinforced with FRP. Background Art

[0002] Anchor support refers to a reinforcement support method used in surface engineering such as debris flow slopes, deep rock foundation pits, and underground chamber construction such as tunnels and stopes. Rods are made of metal, wood, polymer or other materials and driven into pre-drilled holes in the surface rock mass or the rock mass around the chamber. The surrounding rock and stable rock mass are combined together by the special structure of the head and rod body and the tail support plate (optional), or by relying on bonding to produce a suspension effect, a composite beam effect, and a reinforcement effect to achieve the purpose of support.

[0003] Based on the concept of green environmental protection, the development of green building materials is the general trend. As a fast-growing natural fiber material, bamboo has the ecological advantages of being renewable, low in energy consumption, environmentally friendly, and having strong carbon fixation capacity. China is one of the central production areas of bamboo in the world, with very rich bamboo forest resources, and people have a long history of using bamboo. Therefore, using bamboo to make anchor rods can give full play to its excellent performance, promote the construction of ecological civilization, and promote the process of "carbon neutrality", which has broad development prospects.

[0004] However, bamboo has defects such as easy mildew and low tensile strength, which leads to problems such as limited size and poor durability of bamboo anchor rods. It cannot fully exert its mechanical properties and cannot meet the structural strength requirements for actual use of anchor rods, so it cannot be widely used. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a bamboo anchor assembly reinforced with FRP, which can improve the structural strength of the bamboo anchor assembly, enhance the corrosion resistance of the bamboo anchor assembly, effectively inhibit the expansion of cracks on the bamboo anchor, and improve the durability of the bamboo anchor assembly, thereby effectively improving the bearing capacity of the bamboo anchor and extending the service life of the bamboo anchor.

[0006] The FRP-reinforced bamboo anchor assembly according to an embodiment of the present invention comprises: a bamboo anchor; an FRP reinforcement layer, wherein the FRP reinforcement layer comprises a matrix and a fiber structure arranged on the matrix, the FRP reinforcement layer is arranged on the bamboo anchor, and the FRP reinforcement layer is connected to the bamboo anchor via an adhesive layer.

[0007] According to the FRP-reinforced bamboo anchor assembly of the embodiment of the present invention, by arranging an FRP reinforcement layer on the bamboo anchor, the structural strength of the bamboo anchor assembly can be improved, the corrosion resistance of the bamboo anchor assembly can be enhanced, the expansion of cracks on the bamboo anchor can be effectively suppressed, and the durability of the bamboo anchor assembly can be improved, thereby effectively improving the bearing capacity of the bamboo anchor and extending the service life of the bamboo anchor.

[0008] According to some embodiments of the present invention, the FRP reinforcement layer is in a form of at least one of filament, plate and cloth.

[0009] According to some embodiments of the present invention, when the FRP reinforcing layer includes a cloth-like form, the portion of the FRP reinforcing layer formed in a cloth-like form is a fiber cloth, the fiber structure includes a plurality of fiber filaments, the fiber cloth includes at least one of a unidirectional fiber cloth and a multidirectional fiber cloth, the fiber filaments in the unidirectional fiber portion are arranged parallel to each other, and at least a portion of the fiber filaments in the multidirectional fiber cloth have an angle therebetween.

[0010] According to some embodiments of the present invention, when the form of the FRP reinforcing layer includes filaments, the FRP reinforcing layer is formed into FRP wires, and the FRP wires are wound around the bamboo anchor rod, and the winding method of the FRP wires includes at least one of single-layer unidirectional winding, multi-layer unidirectional winding, and multi-layer bidirectional winding.

[0011] According to some embodiments of the present invention, when the form of the FRP reinforcing layer includes a plate shape, the FRP reinforcing layer is formed as a fiberboard, and the fiberboard is at least one of sandwiched inside the bamboo anchor or outside the bamboo anchor.

[0012] According to some embodiments of the present invention, the matrix is ​​a resin matrix, which includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin; and / or the fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0013] According to some optional embodiments of the present invention, the bamboo anchor comprises: a rod body and an anchor head, the anchor head is provided on at least one side of the rod body in the length direction, the anchor head is substantially annular, and the FRP reinforcement layer is provided on at least one of the rod body and the anchor head.

[0014] In some optional embodiments according to the present invention, the anchor head includes an arc-shaped curved section and a connecting section extending along a straight line, there are two connecting sections, one end of the two connecting sections are respectively connected to the circumferential ends of the curved section, and the other ends of the two connecting sections are respectively connected to the rod body, and the curvature radius of the curved section is 3-25 cm.

[0015] In some optional embodiments according to the present invention, the anchor head includes an arc-shaped curved segment and a connecting segment extending in a straight line, there are two connecting segments, one end of the two connecting segments are respectively connected to the circumferential ends of the curved segment, and the rod body includes two stacked rod segments extending in a straight line, and the other ends of the two connecting segments are respectively connected to the two rod segments.

[0016] According to some optional embodiments of the present invention, the FRP reinforcement layer is provided on one or at least one of the inner surface, the outer surface and the interlayer of the bamboo anchor.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a bamboo anchor assembly reinforced with FRP according to some embodiments of the present invention;

[0020] Figure 2 is a schematic diagram of a bamboo anchor assembly reinforced with FRP according to other embodiments of the present invention;

[0021] Figure 3 yes Figure 2 Schematic diagram of the anchor head of the bamboo anchor rod in which each layer of the structure is wrapped with a layer of FRP wire in parallel;

[0022] Figure 4 yes Figure 1 Schematic diagram of bamboo anchor rods being cross-wrapped with two layers of FRP wires;

[0023] Figure 5 yes Figure 4 Schematic diagram of the bamboo anchor head being cross-wrapped with two layers of FRP wires;

[0024] Figure 6 yes Figure 2 A three-dimensional diagram of a bamboo anchor with a fiberboard sandwiched between the main anchor head and the auxiliary anchor head;

[0025] Figure 7 yes Figure 1 Schematic diagram of the bamboo anchor rod being wrapped with unidirectional fiber cloth;

[0026] Figure 8 yes Figure 2 Schematic diagram of the bamboo anchor rod being wrapped with bidirectional fiber cloth;

[0027] Fig. 9 yes Figure 1 Schematic diagram of the bamboo anchor rod being wrapped with bidirectional fiber cloth;

[0028] Fig.10 yes Figure 1 A three-dimensional diagram of a bamboo anchor rod with a fiberboard sandwiched between the rod body;

[0029] Fig.11 yes Figure 2 A three-dimensional diagram of a bamboo anchor having a fiberboard sandwiched between the main anchor and the auxiliary anchor;

[0030] Fig.12 yes Figure 2 A three-dimensional diagram of a bamboo anchor in which a fiberboard is sandwiched between the main anchor and the auxiliary anchor and in the auxiliary rod body of the auxiliary anchor;

[0031] Fig.13 yes Figure 2 A three-dimensional diagram of a bamboo anchor having an annular fiberboard sandwiched between the main anchor and the auxiliary anchor;

[0032] Fig.14 yes Fig.11 A schematic diagram of a bamboo anchor assembly in which a unidirectional fiber cloth is provided on the sandwich surface of the auxiliary anchor head;

[0033] Fig.15 yes Fig.11 Schematic diagram of a bamboo anchor assembly in which unidirectional fiber cloth is wrapped on the inner and outer surfaces of the anchor head.

[0034] Reference numerals:

[0035] Bamboo anchor assembly 100;

[0036] Bamboo anchor 10;

[0037] Rod body 11; anchor head 12; curved section 121; connecting section 122; interlayer 13; outer surface 14; inner surface 15;

[0038] Main anchor 2;

[0039] Main anchor head 21; main bending section 211; main connecting section 212;

[0040] Main rod body 22; first rod body 221; second rod body 222;

[0041] Secondary anchor 3;

[0042] Auxiliary anchor head 31; auxiliary bending section 311; auxiliary connecting section 312;

[0043] Auxiliary rod body 32; third rod body 321; fourth rod body 322;

[0044] FRP reinforcing layer 40 ; FRP wire 41 ; fiber cloth 42 ; fiber board 43 . DETAILED DESCRIPTION

[0045] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] The following describes a bamboo anchor assembly 100 reinforced with FRP according to an embodiment of the present invention with reference to the accompanying drawings.

[0047] Reference Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig.10 and Fig.11 According to an embodiment of the present invention, the bamboo anchor assembly 100 reinforced with FRP includes: a bamboo anchor 10 and an FRP reinforcement layer 40, wherein the FRP reinforcement layer 40 includes a matrix and a fiber structure disposed on the matrix, the FRP reinforcement layer 40 is disposed on the bamboo anchor 10, and the FRP reinforcement layer 40 is connected to the bamboo anchor 10 through an adhesive layer. The FRP reinforcement layer 40 has good corrosion resistance and durability. By arranging the FRP reinforcement layer 40 on the bamboo anchor 10, the bamboo anchor assembly 100 can prevent the surface of the bamboo anchor 10 from contacting the air of the external environment, slow down the corrosion rate, thereby improving the durability of the bamboo anchor 10 and extending the service life of the bamboo anchor 10.

[0048] The FRP reinforcing layer 40 also has a high specific strength and specific modulus. By arranging the FRP reinforcing layer 40 on the bamboo anchor 10, the bamboo anchor assembly 100 can improve the structural strength of the bamboo anchor 10, improve the force limit of the bamboo anchor 10, thereby improving the bearing capacity of the bamboo anchor 10 and reducing the overall weight of the bamboo anchor assembly 100. Moreover, when cracks appear on the bamboo anchor 10, since the FRP reinforcing layer 40 is connected to the bamboo anchor 10, it is difficult for the cracks to continue to expand at the connection between the FRP reinforcing layer 40 and the bamboo anchor 10, which can prevent the bamboo anchor 10 from being damaged due to the expansion of the cracks, thereby extending the service life of the bamboo anchor 10.

[0049] For example, refer to Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig.10 and Fig.11In some specific embodiments of the present invention, the bonding layer can be a contact layer where the substrate contacts the surface of the bamboo anchor 10. When manufacturing the bamboo anchor assembly 100, the FRP reinforcement layer 40 can be connected to the bamboo anchor 10 when the substrate of the FRP reinforcement layer 40 is not completely solidified, so that the substrate of the FRP reinforcement layer 40 contacts the surface of the bamboo anchor 10. After the substrate of the FRP reinforcement layer 40 is completely solidified, the contact layer where the substrate of the FRP reinforcement layer 40 contacts the bamboo anchor 10 can connect the FRP reinforcement layer 40 and the bamboo anchor 10 together. In this way, the use of adhesive can be reduced, and the manufacturing cost of the bamboo anchor assembly 100 can be reduced.

[0050] For example, refer to Figure 1 , Figure 2 , Figure 7 Figure 8 , Fig.10 and Fig.11 In some specific embodiments of the present invention, the bonding layer can also be an adhesive. When making the bamboo anchor assembly 100, the adhesive can be first applied to the surface of the FRP reinforcement layer 40 or the surface of the bamboo anchor 10, and then the FRP reinforcement layer 40 can be pasted to the surface of the bamboo anchor 10. After the adhesive takes effect, the FRP reinforcement layer 40 and the bamboo anchor 10 can be connected together. This facilitates the production of the main anchor 2 assembly and can improve the production efficiency of the main anchor 2 assembly. Among them, the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0051] According to the FRP-reinforced bamboo anchor assembly 100 of the embodiment of the present invention, by providing an FRP reinforcement layer 40 on the bamboo anchor 10, the structural strength of the bamboo anchor 10 can be improved, the corrosion resistance of the bamboo anchor 10 can be enhanced, the expansion of cracks on the bamboo anchor 10 can be effectively suppressed, and the durability of the bamboo anchor 10 can be improved, thereby effectively improving the bearing capacity of the bamboo anchor 10 and extending the service life of the bamboo anchor 10.

[0052] Reference Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig.10 and Fig.11According to some embodiments of the present invention, the form of the FRP reinforcing layer 40 includes at least one of filament, plate and cloth. The filamentary FRP reinforcing layer 40 is easy to wrap, flexible to use, and suitable for wrapping around the bend of the bamboo anchor 10, which can improve the structural strength of the bamboo anchor 10 at the bend and improve the bearing capacity of the bamboo anchor 10. The plate-shaped FRP reinforcing layer 40 also has good bending resistance, which can improve the toughness of the bamboo anchor 10 and prevent the bamboo anchor 10 from producing a large deformation. The cloth-shaped FRP reinforcing layer 40 can be well attached to the outer surface of the bamboo anchor 10. The filamentary, plate-shaped and cloth-shaped FRP reinforcing layers 40 can all improve the mechanical properties of the bamboo anchor 10, improve the bearing capacity of the bamboo anchor 10, effectively inhibit the expansion of cracks on the bamboo anchor 10, and extend the service life of the bamboo anchor 10. The bamboo anchor assembly 100 can achieve the superposition of multiple effects by utilizing a combination of multiple forms of FRP reinforcing layers 40, which can effectively improve the bearing capacity of the bamboo anchor 10 and extend the service life of the bamboo anchor 10.

[0053] Reference Fig.10 and Fig.11 In some specific embodiments according to the present invention, the surface of the bamboo anchor 10 includes an inner surface 15 and an outer surface 14, the surface of the bamboo anchor 10 on its inner side is the inner surface 15, and the surface of the bamboo anchor 10 on its outer side is the outer surface 14. The bamboo anchor 10 may also have an interlayer 13 formed inside it, and the surface defining the interlayer inside the bamboo anchor 10 is the interlayer surface. For example, when the FRP reinforcing layer 40 is only in the form of a filament, the FRP reinforcing layer 40 may be wound around the outer surface 14 and the inner surface 15 of the bamboo anchor 10; when the FRP reinforcing layer 40 is only in the form of a plate, the FRP reinforcing layer 40 may be placed at the interlayer 13 of the bamboo anchor 10, so that the FRP reinforcing layer 40 is connected to the interlayer surface; when the FRP reinforcing layer 40 is only in the form of a cloth, the FRP reinforcing layer 40 may wrap the surface of the bamboo anchor 10, or may only wrap the outer surface and the inner surface of the bamboo anchor 10, or may be provided in the interlayer to wrap the interlayer surface.

[0054] When the FRP reinforcement layer 40 includes two forms, filamentary and cloth-like, a layer of filamentary FRP reinforcement layer 40 can be firstly wound on the surface of the bamboo anchor 10, and then a piece of cloth-like FRP reinforcement layer 40 can be used to wrap the filamentary FRP reinforcement layer 40. When the FRP reinforcement layer 40 includes three forms, filamentary, plate-like and cloth-like, the plate-like FRP reinforcement layer 40 can be firstly sandwiched in the bamboo anchor 10, and then the filamentary FRP reinforcement layer 40 can be wound around the outer surface of the bamboo anchor 10, and then the outer surface of the bamboo anchor 10 can be wrapped with the cloth-like FRP reinforcement layer 40.

[0055] Reference Figure 7-Figure 9According to some embodiments of the present invention, when the form of the FRP reinforcing layer 40 includes a cloth-like shape, the portion of the FRP reinforcing layer 40 formed into a cloth-like shape is a fiber cloth 42, the fiber structure includes a plurality of fiber filaments, the fiber cloth 42 includes at least one of a unidirectional fiber cloth and a multidirectional fiber cloth, the fiber filaments in the unidirectional fiber cloth are arranged parallel to each other, and at least a portion of the fiber filaments in the multidirectional fiber cloth have an angle therebetween. The portion of the FRP reinforcing layer 40 formed into a cloth-like shape is a unidirectional fiber cloth, which can improve the tensile strength of the bamboo anchor 10 in the fiber direction and improve the compressive strength of the bamboo anchor 10 in a direction perpendicular to the fiber direction. The portion of the FRP reinforcing layer 40 formed into a cloth-like shape is a multidirectional fiber cloth, which can improve the tensile strength of the bamboo anchor 10 in multiple directions and improve the bearing capacity of the bamboo anchor 10.

[0056] Reference Figure 1-Figure 5 According to some embodiments of the present invention, when the FRP reinforcing layer 40 includes a filament shape, the FRP reinforcing layer 40 is formed into an FRP wire 41, and the FRP wire 41 is wound on the bamboo anchor 10, and the winding method of the FRP wire 41 includes at least one of single-layer unidirectional winding, multi-layer unidirectional winding, and multi-layer bidirectional winding. Figure 1 As shown, the bamboo anchor 10 is a single-layer structure, and the winding method of the FRP wire 41 is single-layer unidirectional winding. That is, when the FRP wire 41 is wound around the bamboo anchor 10, it is wound in one layer in a first direction (refer to the left and right directions in the figure), so that the FRP wires 41 on the anchor are parallel to each other on the same plane. Figure 2 and Figure 3 As shown, the bamboo anchor 10 is a multi-layer structure, and the winding method of the FRP wire 41 is multi-layer unidirectional winding. That is, when the FRP wire 41 is in the bamboo anchor 10, the FRP wire 41 is wound in a first direction (refer to the left and right directions in the figure) on each layer of the bamboo anchor 10; or the multi-layer structure of the bamboo anchor 10 is taken as a whole, and the FRP wire 41 is wound in a first direction (refer to the left and right directions in the figure) on the surface of the whole.

[0057] like Figure 4As shown, the bamboo anchor 10 is a single-layer structure, and the winding method of the FRP wire 41 is multi-layer bidirectional winding. That is, when the FRP wire 41 is wound around the bamboo anchor 10, the FRP wire 41 is first wound around the bamboo anchor 10 in a first direction (refer to the left and right directions in the figure) for one layer, and then the FRP wire 41 is wound around this layer in a second direction for one layer, and there is a certain angle between the second direction and the first direction, so that there is a certain angle between the FRP wire 41 of the first layer and the FRP wire 41 of the second layer. When the FRP wire 41 is wound around the bamboo anchor 10 in multiple layers, the FRP wire 41 between each layer can be independent of each other, that is, after winding one layer, the FRP wire 41 is cut off, and then a new layer is wound; or after winding one layer, the FRP wire 41 is not cut off, and the winding is continued to maintain the continuity of the FRP wire 41.

[0058] Reference Figure 6 , Figure 10-15 According to some embodiments of the present invention, when the FRP reinforcing layer 40 is in the form of a plate, the FRP reinforcing layer 40 is formed into a fiberboard 43, and the fiberboard 43 is at least one of sandwiched in the bamboo anchor 10 or disposed outside the bamboo anchor 10. Both sandwiching the fiberboard 43 in the bamboo anchor 10 and arranging the fiberboard 43 outside the bamboo anchor 10 can prevent the bamboo anchor 10 from being greatly deformed, prevent the bamboo anchor 10 from being greatly deformed and cracked, and extend the service life of the bamboo anchor 10. Fig.10 As shown, the bamboo anchor rod 10 is a single-layer structure, the rod body 11 includes a first rod body 221 and a second rod body 222 arranged opposite to each other, and the fiberboard 43 is sandwiched between the first rod body 221 and the second rod body 222. When manufacturing the bamboo anchor rod assembly 100, the surface of the bamboo anchor rod 10 can be cleaned first, and then the adhesive is applied to the inner surface of the first rod body 221 and the second rod body 222 or the left and right sides of the fiberboard 43, and then the fiberboard 43 is placed between the first rod body 221 and the second rod body 222, and finally the first rod body 221, the second rod body 222 and the fiberboard 43 are compacted, and after the adhesive takes effect, the fiberboard 43 can be connected with the first rod body 221 and the second rod body 222, thereby completing the manufacturing of the bamboo anchor rod assembly 100.

[0059] The bamboo anchor rod 10 can improve the toughness of the rod body 11 and the bending strength of the rod body 11 by arranging the fiberboard 43 in the rod body 11, thereby improving the structural strength of the bamboo anchor rod 10 and improving the bearing capacity of the bamboo anchor rod 10. At the same time, the bamboo anchor rod 10 can also be subjected to forces in multiple directions, so that the bamboo anchor rod assembly 100 can adapt to various working environments. Figure 6As shown, the bamboo anchor rod 10 has a double-layer structure, and the bamboo anchor rod 10 includes a main anchor rod 2 and a secondary anchor rod 3, and a sandwich layer 13 is defined between the main anchor rod 2 and the secondary anchor rod 3. The fiberboard 43 is placed in the sandwich layer 13 between the main anchor head 21 and the secondary anchor head 31, which can improve the tensile strength of the bamboo anchor rod 10 and improve the bearing capacity of the bamboo anchor rod 10.

[0060] According to some embodiments of the present invention, the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. For example, the FRP reinforcing layer 40 can only use epoxy resin as the matrix, and the epoxy resin has a high hardness after solidification, which can improve the structural strength of the bamboo anchor 10 and improve the bearing capacity of the bamboo anchor 10; the FRP reinforcing layer 40 can also use vinyl resin as the matrix, and the vinyl resin also has good corrosion resistance and flexibility, which can improve the tensile strength of the bamboo anchor 10; the FRP reinforcing layer 40 can also use polyurethane resin as the matrix, and the polyurethane resin also has good weather resistance, so that the bamboo anchor assembly 100 can also be used for a long time in a harsh environment, extending the service life of the bamboo anchor assembly 100; the FRP reinforcing layer 40 can also only use bio-based resin as the matrix, and the bio-based resin is environmentally friendly and can be biodegraded, which can make the FRP reinforcing layer 40 more environmentally friendly, thereby making the bamboo anchor assembly 100 more environmentally friendly. The matrix of the FRP reinforcement layer is also formed by mixing multiple resins, giving full play to the advantages of multiple resins, so that the FRP reinforcement layer has better structural strength, corrosion resistance, wear resistance and weather resistance, thereby improving the structural strength of the bamboo anchor assembly 100, improving the bearing capacity of the bamboo anchor assembly 100, and extending the service life of the bamboo anchor assembly 100.

[0061] According to some embodiments of the present invention, the fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber. For example, glass fiber is used as the fiber structure of the FRP reinforcing layer 40. The price of glass fiber is low, which can reduce the cost of the FRP reinforcing layer 40, thereby reducing the production cost of the bamboo anchor assembly 100. Carbon fiber can also be used as the fiber structure of the FRP reinforcing layer 40, which can greatly improve the mechanical properties of the FRP reinforcing layer 40, thereby improving the structural strength of the bamboo anchor 10 and improving the bearing capacity of the bamboo anchor 10. The fiber structure of the FRP reinforcing layer 40 is also composed of multiple fibers, giving full play to the advantages of multiple fibers, so that the FRP reinforcing layer 40 has better structural strength, thereby improving the bearing capacity of the bamboo anchor assembly 100 and reducing the production cost of the FRP reinforcing layer 40.

[0062] Reference Figure 1-Figure 15According to some embodiments of the present invention, the bamboo anchor rod 10 includes: a rod body 11 and an anchor head 12, at least one side of the rod body 11 in the length direction is provided with the anchor head 12, the anchor head 12 is roughly annular, and the FRP reinforcement layer 40 is provided on at least one of the rod body 11 and the anchor head 12. For example, when the bamboo anchor rod 10 is used for slope protection, the rod body 11 of the bamboo anchor rod 10 can be inserted into the underground or rock layer, so that the side of the bamboo anchor rod 10 provided with the anchor head 12 can be exposed and form a free end, and the anchor head 12 is roughly annular, which is convenient for the bamboo anchor rod 10 to be connected with other components of slope protection. The bamboo anchor rod 10 can also insert the end provided with the anchor head 12 into the underground or rock layer to enhance the anchoring force of the bamboo anchor rod 10 during slope protection.

[0063] Reference Figure 1-Figure 15 According to some embodiments of the present invention, the FRP reinforcing layer 40 is disposed on one or at least one of the inner surface 15, the outer surface 14 and the interlayer 13 of the bamboo anchor 10. For example, when the FRP reinforcing layer 40 is disposed on the outer surface 14 of the bamboo anchor 10, the carbon marks and defects on the outer surface 14 of the bamboo anchor 10 can be covered, the artistic beauty of the bamboo anchor 10 can be enhanced, and the aesthetics of the bamboo anchor 10 can be improved; the FRP reinforcing layer 40 can prevent the connecting section 122 between the bamboo anchor 10 and the FRP from being corroded by external media and affecting the use effect of the bamboo anchor 10, thereby extending the service life of the bamboo anchor 10. The FRP reinforcing layer 40 can also improve the structural strength of the connecting section 122 connecting the bamboo anchor 10 and the FRP reinforcing layer 40, improve the tensile strength of the bamboo anchor 10, and improve the bearing capacity of the bamboo anchor 10. At the same time, since it is only disposed on the outer surface 14 of the bamboo anchor 10, the material used for the FRP reinforcing layer 40 can also be saved, and the cost of manufacturing the bamboo anchor assembly 100 can be reduced.

[0064] When the FRP reinforcing layer 40 is disposed on the inner surface 15 of the bamboo anchor 10, the FRP reinforcing layer 40 can be hidden, thereby improving the tensile strength of the bamboo anchor 10, improving the load-bearing capacity of the bamboo anchor assembly 100, and at the same time, improving the aesthetics of the bamboo anchor assembly 100 and reducing the manufacturing cost of the bamboo anchor assembly 100. The bamboo anchor 10 can define a sandwich 13 between each two layers of the structure, and the FRP reinforcing layer 40 can be placed in the sandwich 13. In this way, the structural strength of the bamboo anchor 10 can be improved, the tensile strength of the bamboo anchor 10 can be improved, the load-bearing capacity of the bamboo anchor assembly 100 can be improved, and at the same time, the aesthetics of the bamboo anchor assembly 100 can be improved and the manufacturing cost of the bamboo anchor assembly 100 can be reduced.

[0065] The bamboo anchor rod 10 may also be provided with an FRP reinforcing layer 40 on its inner surface 15, outer surface 14 and interlayer 13. The FRP reinforcing layer 40 may completely cover all surfaces of the bamboo anchor rod 10, cover carbon marks and defects on the surface of the bamboo anchor rod 10, enhance the artistic beauty of the bamboo anchor rod 10, and improve the aesthetics of the bamboo anchor rod 10. The FRP reinforcing layer 40 may also prevent the bamboo anchor rod 10 from contacting the outside world in all directions, prevent the bamboo anchor rod 10 from being corroded by external media and affecting its use effect, and extend the service life of the bamboo anchor rod 10. At the same time, the FRP reinforcing layer 40 may also improve the structural strength of the entire bamboo anchor rod 10 and improve the bearing capacity of the bamboo anchor rod 10.

[0066] Reference Figure 1-Figure 15 According to some embodiments of the present invention, the anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending in a straight line. There are two connecting sections 122, one end of each of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of each of the two connecting sections 122 is connected to the rod body 11. The radius of curvature of the curved section 121 is 3-25 cm. For example, the radius of the curved section 121 may be 5 cm, 10 cm, 15 cm, or 20 cm. The bamboo anchor rod assembly 100 may be used in slope support. The bamboo anchor rod assembly 100 may be connected to other components of slope protection by a rope, and the radius of curvature of 3-25 cm allows the rope to pass through the anchor head 12. The bamboo anchor rod 10 is provided with the anchor head 12, which facilitates construction workers to connect it with other components.

[0067] It should be explained that when the bamboo anchor 10 is a single-layer structure, the curvature radius of the curved section 121 refers to the curvature radius of the curved surface inside the anchor head 12; when the bamboo anchor 10 is a multi-layer structure, the curvature radius of the curved section 121 refers to the curvature radius of the innermost curved surface of the anchor head 12.

[0068] Reference Figure 1-Figure 15 According to some embodiments of the present invention, the anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending in a straight line, the connecting sections 122 are two, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the rod body 11 includes two stacked rod sections extending in a straight line, and the other ends of the two connecting sections are respectively connected to the two rod sections. By providing two rod sections, the structural strength of the rod body 11 can be improved, and the bearing capacity of the bamboo anchor rod 10 can be improved. It is also convenient for the bamboo anchor rod 10 to provide an interlayer 13 between the two rod sections, which facilitates the manufacture of the bamboo anchor rod 10.

[0069] Refer to the following Figure 1-Figure 15 A bamboo anchor assembly 100 reinforced with FRP according to various embodiments of the present invention is described.

[0070] Embodiment 1:

[0071] Reference Figure 1 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 is a single-layer structure. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally a long strip extending along a straight line. The rod body 11 may include a first rod body 221 and a second rod body 222 arranged opposite to each other on the left and right, and the first rod body 221 abuts against the second rod body 222. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending along a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The curvature radius of the curved section 121 is 3-25 cm.

[0072] The surface of the bamboo anchor rod 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 is the surface of the main anchor rod 10 exposed to the outside, and the inner surface 15 is the surface inside the anchor head 12 .

[0073] The bamboo anchor rod 10 can be made of bamboo strips, which are connected end to end and have two pairs of opposite bamboo strip sections. Among them, one pair of opposite bamboo strip sections can be abutted to form a rod body 11 of the bamboo anchor rod 10, and the other pair of opposite bamboo strip sections form anchor heads 12 connected to the rod body 11 at both ends of the rod body 11.

[0074] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0075] Reference Figure 1 The FRP reinforcing layer 40 is formed as an FRP wire 41, and the FRP wire 41 is wound around the two anchor heads 12 on the bamboo anchor rod 10, and the FRP wire 41 is wound around each anchor head 12 in a first direction (refer to the front-back direction in the figure). The FRP wire 41 can be connected to the outer surface 14 and the inner surface 15 corresponding to the anchor head 12 through an adhesive layer. For example, the adhesive layer can be a contact layer where the base of the FRP wire 41 contacts the anchor head 12, and the adhesive layer can also be an adhesive. When the adhesive layer is an adhesive, the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0076] Embodiment 2:

[0077] Reference Figure 2In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending in a straight line. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending in a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The bamboo anchor 10 is a two-layer structure, that is, the bamboo anchor 10 includes a main anchor 2 and a secondary anchor 3, the secondary anchor 3 is arranged inside the main anchor 2, the secondary anchor 3 is in contact with the main anchor 2, and a sandwich 13 is defined between the secondary anchor head 31 and the main anchor head 21.

[0078] The main anchor rod 2 may include a main rod body 22 and a main anchor head 21. The main rod body 22 includes two first rod bodies 221 and second rod bodies 222 that are opposite to each other and spaced apart from each other. The main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31. The secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 that are opposite to each other and abut against each other. The secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The secondary rod body 32 is arranged on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22. The secondary anchor head 31 is arranged on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21. The bending section 121 includes a main bending section 211 and a secondary bending section 311 that are stacked inside and outside. The connecting section 122 includes a main connecting section 212 and a secondary connecting section 312 that are stacked inside and outside. The third rod body 321 is opposite to the first rod body 221, the fourth rod body 322 is opposite to the second rod body 222, and the main anchor head 21 is opposite to the auxiliary anchor head 31. The curvature radius of the auxiliary bending section 311 is 3-25 cm.

[0079] The surface of the bamboo anchor 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 includes the surface of the main anchor 2 exposed to the outside and the front and rear surfaces of the auxiliary anchor 3 . The inner surface 15 is the surface inside the auxiliary anchor head 31 .

[0080] The main anchor rod 2 can be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged at intervals to form a first rod body 221 and a second rod body 222 of the main rod body 12, and another pair of opposite bamboo strip segments form a main anchor head 21 connected to the main rod body 12 at both ends of the main rod body 12. The secondary anchor rod 3 can also be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged in abutment to form a third rod body 321 and a fourth rod body 322 of the secondary rod body 32, and another pair of opposite bamboo strip segments form a secondary anchor head 31 connected to the secondary rod body 32 at both ends of the secondary rod body 32. The length of the bamboo strip used to make the main anchor rod 2 is greater than the length of the bamboo strip used to make the secondary anchor rod 3.

[0081] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0082] Reference Figure 2 The FRP reinforcing layer 40 is formed as an FRP wire 41, which is wound around two main anchor heads 21 and two auxiliary anchor heads 31 on the bamboo anchor rod 10. The FRP wire 41 is wound around the surface of each main anchor head 21 and auxiliary anchor head 31 in a first direction (refer to the front-back direction in the figure) by one layer, and a portion of the FRP wire 41 is placed in the interlayer 13. The FRP wire 41 can be connected to the outer surface 14 and the inner surface 15 corresponding to the anchor head 12 and the interlayer surface of the interlayer 13 through an adhesive layer. For example, the adhesive layer can be a contact layer where the matrix of the FRP wire 41 contacts the anchor head 12, and the adhesive layer can also be an adhesive. When the adhesive layer is an adhesive, the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0083] Embodiment three:

[0084] Reference Figure 3 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending in a straight line. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending in a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The bamboo anchor 10 is a two-layer structure, that is, the bamboo anchor 10 includes a main anchor 2 and a secondary anchor 3, the secondary anchor 3 is arranged inside the main anchor 2, the secondary anchor 3 is in contact with the main anchor 2, and there is no interlayer 13 between the secondary anchor 3 and the main anchor 2.

[0085] The main anchor rod 2 may include a main rod body 22 and a main anchor head 21. The main rod body 22 includes two first rod bodies 221 and second rod bodies 222 that are opposite to each other and spaced apart from each other. The main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31. The secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 that are opposite to each other and abut against each other. The secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The secondary rod body 32 is arranged on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22. The secondary anchor head 31 is arranged on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21. The bending section 121 includes a main bending section 211 and a secondary bending section 311 that are stacked inside and outside. The connecting section 122 includes a main connecting section 212 and a secondary connecting section 312 that are stacked inside and outside. The third rod body 321 is opposite to the first rod body 221, the fourth rod body 322 is opposite to the second rod body 222, and the main anchor head 21 is opposite to the auxiliary anchor head 31. The curvature radius of the auxiliary bending section 311 is 3-25 cm.

[0086] The surface of the bamboo anchor 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 includes the surface of the main anchor 2 exposed to the outside and the front and rear surfaces of the auxiliary anchor 3 . The inner surface 15 is the surface inside the auxiliary anchor head 31 .

[0087] The main anchor rod 2 can be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged at intervals to form a first rod body 221 and a second rod body 222 of the main rod body 12, and another pair of opposite bamboo strip segments form a main anchor head 21 connected to the main rod body 12 at both ends of the main rod body 12. The secondary anchor rod 3 can also be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged in abutment to form a third rod body 321 and a fourth rod body 322 of the secondary rod body 32, and another pair of opposite bamboo strip segments form a secondary anchor head 31 connected to the secondary rod body 32 at both ends of the secondary rod body 32. The length of the bamboo strip used to make the main anchor rod 2 is greater than the length of the bamboo strip used to make the secondary anchor rod 3.

[0088] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0089] Reference Figure 3The FRP reinforcing layer 40 is formed as an FRP wire 41, and the FRP wire 41 is wound around the two anchor heads 12 on the bamboo anchor rod 10. The FRP wire 41 wraps the main anchor head 21 and the auxiliary anchor head 31 as a whole on the surface thereof in a first direction (refer to the front-back direction in the figure) by one layer. The FRP wire 41 can be connected to the corresponding outer surface 14 and inner surface 15 of the anchor head 12 through an adhesive layer. For example, the adhesive layer can be a contact layer where the base of the FRP wire 41 contacts the anchor head 12, and the adhesive layer can also be an adhesive. When the adhesive layer is an adhesive, the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0090] Embodiment 4:

[0091] Reference Figure 4 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 is a single-layer structure. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending in a straight line. The rod body 11 may include a first rod body 221 and a second rod body 222, and the first rod body 221 abuts against the second rod body 222. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending in a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The curvature radius of the curved section 121 is 3-25 cm.

[0092] The surface of the bamboo anchor rod 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 is a surface of the main anchor rod 10 exposed to the outside, and the inner surface 15 is a surface inside the anchor head 12 .

[0093] The bamboo anchor rod 10 can be made of bamboo strips, which are connected end to end and have two pairs of opposite bamboo strip sections. Among them, one pair of opposite bamboo strip sections can be abutted to form a rod body 11 of the bamboo anchor rod 10, and the other pair of opposite bamboo strip sections form anchor heads 12 connected to the rod body 11 at both ends of the rod body 11.

[0094] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0095] Reference Figure 4 and Figure 5The FRP reinforcing layer 40 is formed as FRP wires 41, and the FRP wires 41 are wound around the two anchor heads 12 on the bamboo anchor rod 10. The FRP wires 41 are wound around each anchor head 12 in two layers, and there is a certain angle between the FRP wires 41 of the first layer and the FRP wires 41 of the second layer. The FRP wires 41 can be connected to the outer surface 14 and the inner surface 15 corresponding to the anchor head 12 through an adhesive layer. For example, the adhesive layer can be a contact layer where the matrix of the FRP wires 41 contacts the anchor head 12, and the adhesive layer can also be an adhesive. When the adhesive layer is an adhesive, the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0096] Embodiment five:

[0097] Reference Figure 6 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending in a straight line. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending in a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The bamboo anchor 10 is a two-layer structure, that is, the bamboo anchor 10 includes a main anchor 2 and a secondary anchor 3, the secondary anchor 3 is arranged inside the main anchor 2, and the secondary anchor 3 is opposite to the main anchor 2 and is arranged at a distance to define a sandwich 13.

[0098] The main anchor rod 2 may include a main rod body 22 and a main anchor head 21. The main rod body 22 includes two first rod bodies 221 and second rod bodies 222 that are opposite to each other and spaced apart from each other. The main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31. The secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 that are opposite to each other and abut against each other. The secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The secondary rod body 32 is arranged on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22. The secondary anchor head 31 is arranged on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21. The bending section 121 includes a main bending section 211 and a secondary bending section 311 that are stacked inside and outside. The connecting section 122 includes a main connecting section 212 and a secondary connecting section 312 that are stacked inside and outside. The third rod body 321 is opposite to the first rod body 221, the fourth rod body 322 is opposite to the second rod body 222, and the main anchor head 21 is opposite to the auxiliary anchor head 31. The curvature radius of the auxiliary bending section 311 is 3-25 cm.

[0099] The surface of the bamboo anchor 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 includes the surface of the main anchor 2 exposed to the outside and the front and rear surfaces of the auxiliary anchor 3 . The inner surface 15 is the surface inside the auxiliary anchor head 31 .

[0100] The main anchor rod 2 can be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged at intervals to form a first rod body 221 and a second rod body 222 of the main rod body 12, and another pair of opposite bamboo strip segments form a main anchor head 21 connected to the main rod body 12 at both ends of the main rod body 12. The secondary anchor rod 3 can also be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged in abutment to form a third rod body 321 and a fourth rod body 322 of the secondary rod body 32, and another pair of opposite bamboo strip segments form a secondary anchor head 31 connected to the secondary rod body 32 at both ends of the secondary rod body 32. The length of the bamboo strip used to make the main anchor rod 2 is greater than the length of the bamboo strip used to make the secondary anchor rod 3.

[0101] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0102] Reference Figure 6 The FRP reinforcement layer 40 is formed into two fiberboards 43, and the two fiberboards 43 are respectively arranged in the interlayer 13 between the main anchor head 21 and the auxiliary anchor head 31. The fiberboard 43 can be connected to the interlayer surface corresponding to the anchor head 12 through an adhesive layer. For example, the adhesive layer can be an adhesive, and the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0103] Embodiment six:

[0104] Reference Figure 7 In the present invention, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 is a single-layer structure. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally a long strip extending in a straight line. The rod body 11 may include a first rod body 221 and a second rod body 222, and the first rod body 221 abuts against the second rod body 222. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending in a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The curvature radius of the curved section 121 is 3-25 cm.

[0105] The surface of the bamboo anchor rod 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 is the surface of the main anchor rod 10 exposed to the outside, and the inner surface 15 is the surface inside the anchor head 12 .

[0106] The bamboo anchor rod 10 can be made of bamboo strips, which are connected end to end and have two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be abutted to form a rod body 11 of the bamboo anchor rod 10, and the other pair of opposite bamboo strip segments form anchor heads 12 connected to the rod body 11 at both ends of the rod body 11.

[0107] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0108] Reference Figure 7 The FRP reinforcing layer 40 is formed into a cloth-like unidirectional fiber cloth, and the unidirectional fiber cloth is arranged on the rod body 11 of the bamboo anchor rod 10. The unidirectional fiber cloth can wrap the first rod body 221 and the second rod body 222 as a whole and wrap the surface of the whole. The unidirectional fiber cloth can be wrapped on the outer surface 14 corresponding to the rod body 11 through an adhesive layer. For example, the adhesive layer can be a contact layer where the base of the FRP reinforcing layer 40 contacts the anchor head 12, and the adhesive layer can also be an adhesive. When the adhesive layer is an adhesive, the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0109] Embodiment seven:

[0110] Reference Figure 8 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending in a straight line. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending in a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The bamboo anchor 10 is a two-layer structure, that is, the bamboo anchor 10 includes a main anchor 2 and a secondary anchor 3, the secondary anchor 3 is arranged inside the main anchor 2, the secondary anchor 3 is in contact with the main anchor 2, and there is no interlayer 13 between the secondary anchor 3 and the main anchor 2.

[0111] The main anchor rod 2 may include a main rod body 22 and a main anchor head 21. The main rod body 22 includes two first rod bodies 221 and second rod bodies 222 that are opposite to each other and spaced apart from each other. The main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31. The secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 that are opposite to each other and abut against each other. The secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The secondary rod body 32 is arranged on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22. The secondary anchor head 31 is arranged on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21. The bending section 121 includes a main bending section 211 and a secondary bending section 311 that are stacked inside and outside. The connecting section 122 includes a main connecting section 212 and a secondary connecting section 312 that are stacked inside and outside. The third rod body 321 is opposite to the first rod body 221, the fourth rod body 322 is opposite to the second rod body 222, and the main anchor head 21 is opposite to the auxiliary anchor head 31. The curvature radius of the auxiliary bending section 311 is 3-25 cm.

[0112] The surface of the bamboo anchor 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 includes the surface of the main anchor 2 exposed to the outside and the front and rear surfaces of the auxiliary anchor 3 . The inner surface 15 is the surface inside the auxiliary anchor head 31 .

[0113] The main anchor rod 2 can be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged at intervals to form a first rod body 221 and a second rod body 222 of the main rod body 12, and another pair of opposite bamboo strip segments form a main anchor head 21 connected to the main rod body 12 at both ends of the main rod body 12. The secondary anchor rod 3 can also be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged in abutment to form a third rod body 321 and a fourth rod body 322 of the secondary rod body 32, and another pair of opposite bamboo strip segments form a secondary anchor head 31 connected to the secondary rod body 32 at both ends of the secondary rod body 32. The length of the bamboo strip used to make the main anchor rod 2 is greater than the length of the bamboo strip used to make the secondary anchor rod 3.

[0114] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0115] Reference Figure 8The FRP reinforcing layer 40 is formed into a cloth-like unidirectional fiber cloth, and the unidirectional fibers 421 are on the rod body 11 of the bamboo anchor rod 10. The unidirectional fiber cloth can wrap the main rod body 22 and the auxiliary rod body 32 as a whole on the surface of the whole. The unidirectional fiber cloth can be wrapped on the outer surface 14 of the rod body 11 through an adhesive layer. For example, the adhesive layer can be a contact layer where the matrix of the FRP wire 41 contacts the anchor head 12, and the adhesive layer can also be an adhesive. When the adhesive layer is an adhesive, the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0116] Embodiment eight:

[0117] Reference Fig. 9 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 is a single-layer structure. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending in a straight line. The rod body 11 may include a first rod body 221 and a second rod body 222 arranged opposite to each other on the left and right, and the first rod body 221 abuts against the second rod body 222. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending in a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The curvature radius of the curved section 121 is 3-25 cm.

[0118] The surface of the bamboo anchor rod 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 is the surface of the main anchor rod 10 exposed to the outside, and the inner surface 15 is the surface inside the anchor head 12 .

[0119] The bamboo anchor rod 10 can be made of bamboo strips, which are connected end to end and have two pairs of opposite bamboo strip sections. Among them, one pair of opposite bamboo strip sections can be abutted to form a rod body 11 of the bamboo anchor rod 10, and the other pair of opposite bamboo strip sections form anchor heads 12 connected to the rod body 11 at both ends of the rod body 11.

[0120] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0121] Reference Fig. 9The FRP reinforcing layer 40 is formed into a cloth-like bidirectional fiber cloth, and the bidirectional fibers 422 are on the rod body 11 of the bamboo anchor rod 10. The bidirectional fiber cloth can wrap the main rod body 22 and the auxiliary rod body 32 as a whole on the surface of the whole. The bidirectional fiber cloth can be wrapped on the outer surface 15 of the rod body 11 through an adhesive layer. For example, the adhesive layer can be a contact layer where the base of the FRP reinforcing layer 40 contacts the rod body 11, and the adhesive layer can also be an adhesive. When the adhesive layer is an adhesive, the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0122] Embodiment nine:

[0123] Reference Fig.10 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 is a single-layer structure. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending in a straight line. The rod body 11 may include a first rod body 221 and a second rod body 222 that are opposite to each other and spaced apart. A sandwich 13 is defined between the first rod body 221 and the second rod body 222. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending in a straight line. There are two connecting sections 122. One end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The curvature radius of the curved section 121 is 3-25 cm.

[0124] The surface of the bamboo anchor rod 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 is the surface of the main anchor rod 10 exposed to the outside, and the inner surface 15 is the surface inside the anchor head 12 .

[0125] The bamboo anchor rod 10 can be made of bamboo strips, which are connected end to end and have two pairs of opposite bamboo strip sections. Among them, one pair of opposite bamboo strip sections can be arranged at intervals to form a rod body 11 of the bamboo anchor rod 10, and the other pair of opposite bamboo strip sections form anchor heads 12 connected to the rod body 11 at both ends of the rod body 11.

[0126] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0127] Reference Fig.10The FRP reinforcement layer 40 is formed as a fiberboard 43, and the fiberboard 43 is sandwiched between the first rod body 221 and the second rod body 222 on the bamboo anchor rod 10. The fiberboard 43 can be connected to the sandwich layers on both sides of the sandwich layer 13 through an adhesive layer. For example, the adhesive layer can be an adhesive, and the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0128] Embodiment ten:

[0129] Reference Fig.11 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending along a straight line. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending along a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The bamboo anchor 10 is a two-layer structure, that is, the bamboo anchor 10 includes a main anchor 2 and a secondary anchor 3, the secondary anchor 3 is arranged inside the main anchor 2, and the secondary anchor 3 is opposite to the main anchor 2 and is arranged at a distance to define a sandwich 13.

[0130] The main anchor rod 2 may include a main rod body 22 and a main anchor head 21. The main rod body 22 includes two first rod bodies 221 and second rod bodies 222 that are opposite to each other and spaced apart from each other. The main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31. The secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 that are opposite to each other and abut against each other. The secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The secondary rod body 32 is arranged on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22. The secondary anchor head 31 is arranged on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21. The bending section 121 includes a main bending section 211 and a secondary bending section 311 that are stacked inside and outside. The connecting section 122 includes a main connecting section 212 and a secondary connecting section 312 that are stacked inside and outside. The third rod body 321 is opposite to the first rod body 221, the fourth rod body 322 is opposite to the second rod body 222, and the main anchor head 21 is opposite to the auxiliary anchor head 31. The curvature radius of the auxiliary bending section 311 is 3-25 cm.

[0131] The surface of the bamboo anchor 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 includes the surface of the main anchor 2 exposed to the outside and the front and rear surfaces of the auxiliary anchor 3 . The inner surface 15 is the surface inside the auxiliary anchor head 31 .

[0132] The main anchor rod 2 can be made of a bamboo strip, which is connected end to end and has two pairs of opposite bamboo strip segments. Among them, a pair of opposite bamboo strip segments can be arranged at intervals to form the first rod body 221 and the second rod body 222 of the main rod body 12, and the other pair of opposite bamboo strip segments respectively form the main anchor head 21 connected to the main rod body 12 on the main rod body 12. The secondary anchor rod 3 can also be made of a bamboo strip, which is connected end to end and has two pairs of opposite bamboo strip segments. Among them, a pair of opposite bamboo strip segments can be arranged in abutment to form the third rod body 321 and the fourth rod body 322 of the secondary rod body 32, and the other pair of opposite bamboo strip segments respectively form the secondary anchor head 31 connected to the secondary rod body 32 at both ends of the secondary rod body 32. Among them, the length of the bamboo strip made of the main anchor rod 2 is greater than the length of the bamboo strip made of the secondary anchor rod 3.

[0133] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0134] Reference Fig.11 As shown, the FRP reinforcement layer 40 is formed into two fiberboards 43, one fiberboard 43 is arranged in the interlayer 13 between the first rod body 221 and the third rod body 321, and the other fiberboard 43 is arranged in the interlayer 13 between the second rod body 222 and the fourth rod body 322. The fiberboard 43 can be connected to the interlayer surfaces on both sides of the interlayer 13 through an adhesive layer. For example, the adhesive layer can be an adhesive, and the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0135] Embodiment eleven:

[0136] Reference Fig.12 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending along a straight line. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending along a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The bamboo anchor 10 is a two-layer structure, that is, the bamboo anchor 10 includes a main anchor 2 and a secondary anchor 3, the secondary anchor 3 is arranged inside the main anchor 2, and the secondary anchor 3 is opposite to the main anchor 2 and is arranged at a distance to define a sandwich 13.

[0137] The main anchor rod 2 may include a main rod body 22 and a main anchor head 21. The main rod body 22 includes a first rod body 221 and a second rod body 222 that are opposite to each other and spaced apart. The main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31. The secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 that are opposite to each other and spaced apart. A sandwich 13 is defined between the third rod body 321 and the second rod body 322. The secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The secondary rod body 32 is arranged on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22, the secondary anchor head 31 is arranged on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21, the curved section 121 includes a main curved section 211 and a secondary curved section 311 stacked inside and outside, and the connecting section 122 includes a main connecting section 212 and a secondary connecting section 312 stacked inside and outside. The third rod body 321 is opposite to the first rod body 221, the fourth rod body 322 is opposite to the second rod body 222, and the main anchor head 21 is opposite to the secondary anchor head 31. The curvature radius of the secondary curved section 311 is 3-25 cm.

[0138] The surface of the bamboo anchor 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 includes the surface of the main anchor 2 exposed to the outside and the front and rear surfaces of the auxiliary anchor 3 . The inner surface 15 is the surface inside the auxiliary anchor head 31 .

[0139] The main anchor rod 2 can be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged at intervals to form a first rod body 221 and a second rod body 222 of the main rod body 12, and another pair of opposite bamboo strip segments form a main anchor head 21 connected to the main rod body 12 at both ends of the main rod body 12. The secondary anchor rod 3 can also be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged at intervals to form a third rod body 321 and a fourth rod body 322 of the secondary rod body 32, and another pair of opposite bamboo strip segments form a secondary anchor head 31 connected to the secondary rod body 32 at both ends of the secondary rod body 32. The length of the bamboo strip used to make the main anchor rod 2 is greater than the length of the bamboo strip used to make the secondary anchor rod 3.

[0140] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0141] Reference Fig.12The FRP reinforcement layer 40 is formed into three fiberboards 43, one fiberboard 43 is arranged in the interlayer 13 between the first rod body 221 and the third rod body 321, another fiberboard 43 is arranged in the interlayer 13 between the second rod body 222 and the fourth rod body 322, and the third fiberboard 43 is arranged in the interlayer 13 between the third rod body 321 and the fourth rod body 322. The fiberboard 43 can be connected to the interlayer surfaces on both sides of the interlayer 13 through an adhesive layer. For example, the adhesive layer can be an adhesive, and the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0142] Embodiment 12:

[0143] Reference Fig.13 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending along a straight line. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending along a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The bamboo anchor 10 is a two-layer structure, that is, the bamboo anchor 10 includes a main anchor 2 and a secondary anchor 3, the secondary anchor 3 is arranged inside the main anchor 2, and the secondary anchor 3 is opposite to the main anchor 2 and is arranged at a distance to define a sandwich 13.

[0144] The main anchor rod 2 may include a main rod body 22 and a main anchor head 21. The main rod body 22 includes two first rod bodies 221 and second rod bodies 222 that are opposite to each other and spaced apart from each other. The main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31. The secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 that are opposite to each other and abut against each other. The secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The secondary rod body 32 is arranged on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22. The secondary anchor head 31 is arranged on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21. The bending section 121 includes a main bending section 211 and a secondary bending section 311 that are stacked inside and outside. The connecting section 122 includes a main connecting section 212 and a secondary connecting section 312 that are stacked inside and outside. The third rod body 321 is opposite to the first rod body 221, the fourth rod body 322 is opposite to the second rod body 222, and the main anchor head 21 is opposite to the auxiliary anchor head 31. The curvature radius of the auxiliary bending section 311 is 3-25 cm.

[0145] The surface of the bamboo anchor 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 includes the surface of the main anchor 2 exposed to the outside and the front and rear surfaces of the auxiliary anchor 3 . The inner surface 15 is the surface inside the auxiliary anchor head 31 .

[0146] The main anchor rod 2 can be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged at intervals to form a first rod body 221 and a second rod body 222 of the main rod body 12, and another pair of opposite bamboo strip segments form a main anchor head 21 connected to the main rod body 12 at both ends of the main rod body 12. The secondary anchor rod 3 can also be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged in abutment to form a third rod body 321 and a fourth rod body 322 of the secondary rod body 32, and another pair of opposite bamboo strip segments form a secondary anchor head 31 connected to the secondary rod body 32 at both ends of the secondary rod body 32. The length of the bamboo strip used to make the main anchor rod 2 is greater than the length of the bamboo strip used to make the secondary anchor rod 3.

[0147] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0148] Reference Fig.13 The FRP reinforcement layer 40 is formed as an annular fiberboard 43, and the annular fiberboard 43 is arranged in the interlayer 13 defined between the main anchor rod 2 and the auxiliary anchor rod 3. The annular fiberboard 43 can be connected to the auxiliary anchor rod 3 and the main anchor rod 2 through an adhesive layer. For example, the adhesive layer can be an adhesive, and the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0149] Embodiment 13:

[0150] Reference Fig.14 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending along a straight line. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending along a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The bamboo anchor 10 is a two-layer structure, that is, the bamboo anchor 10 includes a main anchor 2 and a secondary anchor 3, the secondary anchor 3 is arranged inside the main anchor 2, and the secondary anchor 3 is opposite to the main anchor 2 and is arranged at a distance to define a sandwich 13.

[0151] The main anchor rod 2 may include a main rod body 22 and a main anchor head 21. The main rod body 22 includes two first rod bodies 221 and second rod bodies 222 that are opposite to each other and spaced apart from each other. The main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31. The secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 that are opposite to each other and abut against each other. The secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The secondary rod body 32 is arranged on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22. The secondary anchor head 31 is arranged on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21. The bending section 121 includes a main bending section 211 and a secondary bending section 311 that are stacked inside and outside. The connecting section 122 includes a main connecting section 212 and a secondary connecting section 312 that are stacked inside and outside. The third rod body 321 is opposite to the first rod body 221, the fourth rod body 322 is opposite to the second rod body 222, and the main anchor head 21 is opposite to the auxiliary anchor head 31. The curvature radius of the auxiliary bending section 311 is 3-25 cm.

[0152] The surface of the bamboo anchor 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 includes the surface of the main anchor 2 exposed to the outside and the front and rear surfaces of the auxiliary anchor 3 . The inner surface 15 is the surface inside the auxiliary anchor head 31 .

[0153] The main anchor rod 2 can be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged at intervals to form a first rod body 221 and a second rod body 222 of the main rod body 12, and another pair of opposite bamboo strip segments form a main anchor head 21 connected to the main rod body 12 at both ends of the main rod body 12. The secondary anchor rod 3 can also be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged in abutment to form a third rod body 321 and a fourth rod body 322 of the secondary rod body 32, and another pair of opposite bamboo strip segments form a secondary anchor head 31 connected to the secondary rod body 32 at both ends of the secondary rod body 32. The length of the bamboo strip used to make the main anchor rod 2 is greater than the length of the bamboo strip used to make the secondary anchor rod 3.

[0154] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0155] Reference Fig.14, the FRP reinforcing layer 40 is formed of two fiberboards 43 and two unidirectional fiber cloths. Among them, one fiberboard 43 is arranged in the interlayer 13 between the first rod body 221 and the third rod body 321, and the other fiberboard 43 is arranged in the interlayer 13 between the second rod body 222 and the fourth rod body 322; the two unidirectional fiber cloths are respectively arranged on the interlayer surfaces of the two auxiliary anchor heads 31. The unidirectional fiber cloth can be connected to the interlayer surface of the auxiliary anchor head 31 through an adhesive layer, and the fiberboard 43 can be connected to the interlayer surface corresponding to the rod body 11 through an adhesive layer. For example, the adhesive layer can be a contact layer where the base of the FRP reinforcing layer 40 contacts the anchor head 12, and the adhesive layer can also be an adhesive. When the adhesive layer is an adhesive, the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0156] Embodiment 14:

[0157] Reference Fig.15 In this embodiment, the bamboo anchor assembly 100 may include a bamboo anchor 10 and an FRP reinforcement layer 40. The bamboo anchor 10 may include a rod body 11 and two anchor heads 12 connected to the rod body 11. The rod body 11 is generally in the shape of a long strip extending along a straight line. The anchor head 12 includes an arc-shaped curved section 121 and a connecting section 122 extending along a straight line. There are two connecting sections 122, one end of the two connecting sections 122 is respectively connected to the circumferential ends of the curved section 121, and the other end of the two connecting sections 122 is connected to the rod body 11. The bamboo anchor 10 is a two-layer structure, that is, the bamboo anchor 10 includes a main anchor 2 and a secondary anchor 3, the secondary anchor 3 is arranged inside the main anchor 2, and the secondary anchor 3 is opposite to the bamboo anchor 10 and is arranged at a distance to define a sandwich 13.

[0158] The main anchor rod 2 may include a main rod body 22 and a main anchor head 21. The main rod body 22 includes two first rod bodies 221 and second rod bodies 222 that are opposite to each other and spaced apart from each other. The main anchor head 21 includes a main bending section 211 and a main connecting section 212. The secondary anchor rod 3 may include a secondary rod body 32 and a secondary anchor head 31. The secondary rod body 32 includes a third rod body 321 and a fourth rod body 322 that are opposite to each other and abut against each other. The secondary anchor head 31 includes a secondary bending section 311 and a secondary connecting section 312. The secondary rod body 32 is arranged on the inner side of the main rod body 22 and forms the rod body 11 of the bamboo anchor rod 10 with the main rod body 22. The secondary anchor head 31 is arranged on the inner side of the main anchor head 21 and forms the anchor head 12 of the bamboo anchor rod 10 with the main anchor head 21. The bending section 121 includes a main bending section 211 and a secondary bending section 311 that are stacked inside and outside. The connecting section 122 includes a main connecting section 212 and a secondary connecting section 312 that are stacked inside and outside. The third rod body 321 is opposite to the first rod body 221, the fourth rod body 322 is opposite to the second rod body 222, and the main anchor head 21 is opposite to the auxiliary anchor head 31. The curvature radius of the auxiliary bending section 311 is 3-25 cm.

[0159] The surface of the bamboo anchor 10 includes an outer surface 14 and an inner surface 15 . The outer surface 14 includes the surface of the main anchor 2 exposed to the outside and the front and rear surfaces of the auxiliary anchor 3 . The inner surface 15 is the surface inside the auxiliary anchor head 31 .

[0160] The main anchor rod 2 can be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be arranged at intervals to form a first rod body 221 and a second rod body 222 of the main rod body 12, and another pair of opposite bamboo strip segments form a main anchor head 21 connected to the main rod body 12 at both ends of the main rod body 12. The secondary anchor rod 3 can also be made of a bamboo strip connected end to end and having two pairs of opposite bamboo strip segments. One pair of opposite bamboo strip segments can be abutted to form a third rod body 321 and a fourth rod body 322 of the secondary rod body 32, and another pair of opposite bamboo strip segments form a secondary anchor head 31 connected to the secondary rod body 32 at both ends of the secondary rod body 32. The length of the bamboo strip used to make the main anchor rod 2 is greater than the length of the bamboo strip used to make the secondary anchor rod 3.

[0161] The FRP reinforcing layer 40 includes a matrix and a fiber structure provided on the matrix, wherein the matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin. The fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber or aramid fiber.

[0162] Reference Fig.15 , the FRP reinforcing layer 40 is formed of two fiberboards 43 and two unidirectional fiber cloths. Among them, one fiberboard 43 is arranged in the interlayer 13 between the first rod body 221 and the third rod body 321, and the other fiberboard 43 is arranged in the interlayer 13 between the second rod body 222 and the fourth rod body 322; the two unidirectional fiber cloths are respectively arranged on the outer surface 14 and the inner surface 15 corresponding to the two anchor heads 12, and the unidirectional fiber cloth can wrap the main anchor head 21 and the auxiliary anchor head 31 as a whole on the surface of the whole. The unidirectional fiber cloth can be connected to the outer surface 14 and the inner surface 15 corresponding to the anchor head 12 through an adhesive layer, and the fiberboard 43 can be connected to the interlayer surface on both sides of the interlayer 13 through an adhesive layer. For example, the adhesive layer can be a contact layer where the matrix of the FRP reinforcing layer 40 contacts the bamboo anchor rod 10, and the adhesive layer can also be an adhesive. When the adhesive layer is an adhesive, the adhesive can include at least one of epoxy resin glue, 502 super glue, hot melt glue or glass glue.

[0163] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0164] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0165] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bamboo anchor assembly reinforced with FRP, characterized in that: include: bamboo anchor; The FRP reinforcement layer comprises a matrix and a fiber structure arranged on the matrix, the FRP reinforcement layer is arranged on the bamboo anchor rod, the FRP reinforcement layer is connected to the bamboo anchor rod through an adhesive layer, the FRP reinforcement layer comprises filaments, plates and cloths, the filamentary part of the FRP reinforcement layer is formed into FRP wire, the plate-shaped part of the FRP reinforcement layer is formed into a fiberboard, the cloth-shaped part of the FRP reinforcement layer is a fiber cloth, the FRP wire is wound on the bamboo anchor rod, the fiberboard is clamped in the bamboo anchor rod, and the fiber cloth is wrapped on the outer surface of the bamboo anchor rod.

2. The FRP-reinforced bamboo anchor assembly according to claim 1, characterized in that: When the FRP reinforcing layer is in the form of cloth, the fiber structure includes a plurality of fiber filaments, the fiber cloth includes at least one of a unidirectional fiber cloth and a multidirectional fiber cloth, the fiber filaments in the unidirectional fiber cloth are arranged parallel to each other, and at least a portion of the fiber filaments in the multidirectional fiber cloth have an angle therebetween.

3. The FRP-reinforced bamboo anchor assembly according to claim 1, characterized in that: The winding method of the FRP wire includes at least one of single-layer unidirectional winding, multi-layer unidirectional winding and multi-layer bidirectional winding.

4. The FRP-reinforced bamboo anchor assembly according to claim 1, characterized in that: The matrix is ​​a resin matrix, and the resin matrix includes at least one of epoxy resin, vinyl resin, polyurethane resin or bio-based resin; and / or the fiber structure includes at least one of glass fiber, carbon fiber, polyethylene terephthalate fiber, basalt fiber and aramid fiber.

5. The FRP-reinforced bamboo anchor assembly according to any one of claims 1 to 4, characterized in that: The bamboo anchor rod comprises a rod body and an anchor head. The anchor head is arranged on at least one side of the rod body in the length direction. The anchor head is substantially annular. The FRP reinforcement layer is arranged on at least one of the rod body and the anchor head.

6. The FRP-reinforced bamboo anchor assembly according to claim 5, characterized in that: The anchor head includes an arc-shaped curved section and a connecting section extending along a straight line. There are two connecting sections, one end of each connecting section is connected to the circumferential ends of the curved section, and the other end of each connecting section is connected to the rod body. The curvature radius of the curved section is 3-25 cm.

7. The FRP-reinforced bamboo anchor assembly according to claim 5, characterized in that: The anchor head includes an arc-shaped curved section and a connecting section extending in a straight line. There are two connecting sections, one end of which is respectively connected to the two circumferential ends of the curved section. The rod body includes two stacked rod sections extending in a straight line, and the other ends of the two connecting sections are respectively connected to the two rod sections.

8. The FRP-reinforced bamboo anchor assembly according to any one of claims 1 to 4, characterized in that: The FRP reinforcement layer is arranged on the inner surface, the outer surface and the interlayer of the bamboo anchor.

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