Bamboo composite anchor rod
By alkalizing bamboo and combining it with fixing components and reinforcement measures, the problems of bamboo anchor rods being prone to mold and having poor mechanical properties have been solved, enabling the application of high-strength, long-life anchor rods, reducing costs and being environmentally friendly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANCHANG UNIV
- Filing Date
- 2025-04-23
- Publication Date
- 2026-06-12
AI Technical Summary
Existing natural bamboo anchors are prone to mold, have poor mechanical properties, and have a short service life, which cannot meet the structural strength requirements of anchors in slope control, resulting in low economic benefits.
The bamboo poles are treated with alkali and combined with fixing components, bearing rods and bearing plates. They are fixed with mortar and reinforced with carbon fiber cloth to enhance mechanical properties and extend service life.
It improves the mechanical properties and service life of bamboo anchors, reduces economic costs, and is naturally biodegradable after use, making it environmentally friendly and energy-saving.
Smart Images
Figure CN224351212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slope protection technology, and in particular to a bamboo composite anchor. Background Technology
[0002] Due to its high economic efficiency and good support effect, anchor bolt support has been widely used in slope control. While conventional reinforced concrete anchor bolts are frequently used in the reinforcement of slope collapse and slippage hazards, they require large quantities of traditional building materials such as steel and concrete, resulting in high costs and energy consumption. Compared with commonly used traditional building materials, bamboo not only has a short growth cycle and improves the natural environment during its growth, but also consumes less energy during processing and can naturally degrade after disposal, making it a truly natural and green building material.
[0003] While bamboo in its natural state possesses excellent structural properties such as high strength and good plasticity, it also has inherent drawbacks, including susceptibility to mold and a decrease in mechanical properties due to corrosion. This results in bamboo anchors having a short service life. Because they cannot fully utilize their mechanical properties, they fail to meet the structural strength requirements of anchors in actual use, thus limiting their widespread application and leading to low economic benefits.
[0004] Therefore, how to provide an anchor bolt with excellent mechanical properties and long service life is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the present invention provides a bamboo composite anchor rod to solve the problems of existing natural bamboo anchor rods being prone to mold, having poor mechanical properties, and having a short service life.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a bamboo composite anchor rod, comprising an alkalized bamboo rod body and a fixing component; an installation groove is provided inside one end of the alkalized bamboo rod body, the installation groove being arranged along the axial direction of the alkalized bamboo rod body; the fixing component is fixed to one end of the alkalized bamboo rod body through the installation groove.
[0007] Preferably, the fixing assembly includes a pressure-bearing rod and a pressure-bearing plate; the first end of the pressure-bearing rod is inserted into the mounting groove of the alkali-treated bamboo pole and fixed by mortar; the pressure-bearing plate is sleeved on the second end of the pressure-bearing rod and can move along the axial direction of the pressure-bearing rod.
[0008] Preferably, along the direction from the first end to the second end of the bearing rod, the cross-sectional area of the bearing plate gradually decreases at each point perpendicular to the axial direction of the bearing rod.
[0009] Preferably, the outer surface of the pressure plate is curved, with the curvature value being 0.2-0.5 rad.
[0010] Preferably, the pressure plate is made of a rigid material.
[0011] Preferably, the fixing component further includes a fastener, which is sleeved on the second end of the pressure-bearing rod, and the pressure-bearing plate is located between the fastener and the alkalized bamboo rod.
[0012] Preferably, it further includes a protective component, which is installed at the end of the second end of the pressure-bearing rod, and the fixing component is located between the alkalized bamboo rod and the protective component.
[0013] Preferably, it also includes a reinforcing component, which is disposed around the outside of the alkalized bamboo pole.
[0014] Preferably, the reinforcing component consists of multiple sets of reinforcing ribs spaced apart, with the distance between adjacent reinforcing ribs being 3-10 cm.
[0015] Preferably, the reinforcing ribs are made of carbon fiber cloth.
[0016] This utility model provides a bamboo composite anchor rod, which has the following advantages compared with the prior art:
[0017] The anchor rod of this invention uses alkalized bamboo as its main body. After alkalization, the proteins in the bamboo rod denature and the sugar and starch structures are destroyed, making it less susceptible to fungal mold and corrosion. This allows the bamboo to better exert its mechanical properties. In addition, injecting mortar into the bamboo rod can further enhance its mechanical properties, meet the strength requirements of the anchor rod in actual use, extend its service life, reduce economic costs, and the bamboo can naturally degrade after use, making it energy-saving and environmentally friendly. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of the bamboo composite anchor rod according to an embodiment of this utility model.
[0020] In the diagram:
[0021] 100-Alkaliated bamboo pole, 200-Fixing component, 210-Pressure rod, 220-Pressure plate, 230-Fastener, 240-Washer, 300-Mortar, 400-Protective component, 410-Sheath, 420-Second fastening nut, 500-Reinforcing component. Detailed Implementation
[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0023] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] like Figure 1 As shown, this utility model embodiment provides a bamboo composite anchor rod, including an alkalized bamboo rod body 100 and a fixing component 200; an installation groove is provided inside one end of the alkalized bamboo rod body 100, and the installation groove is arranged along the axial direction of the alkalized bamboo rod body 100; the fixing component 200 is fixed to one end of the alkalized bamboo rod body 100 through the installation groove.
[0027] In this embodiment, the bamboo poles are made of perennial moso bamboo or nan bamboo, and the bamboo poles are subjected to alkalization treatment. The treatment method is as follows: the bamboo poles are soaked in an alkaline solution with a concentration of 5-10% for 12-36 hours. The alkaline solution can be sodium hydroxide solution, potassium hydroxide solution, etc., which denatures the proteins in the bamboo and destroys the sugar and starch structure, thereby making it less susceptible to fungal mold and corrosion, and allowing the bamboo to better exert its mechanical properties.
[0028] In some embodiments of this utility model, the diameter of the alkalized bamboo anchor rod is 5-10 cm and the length is 6-8 m. The specific length and diameter of the alkalized bamboo rod 100 can be determined according to actual conditions, and no special limitations are imposed.
[0029] In some embodiments of this utility model, the fixing component 200 includes a pressure-bearing rod 210 and a pressure-bearing plate 220; the first end of the pressure-bearing rod 210 is inserted into the mounting groove of the alkali-treated bamboo rod body 100 and fixed by mortar 300. The mortar 300 can not only further enhance the strength of the anchor rod, but also provide an installation point for fixing the pressure-bearing rod 210; the pressure-bearing plate 220 is sleeved on the second end of the pressure-bearing rod 210 and can move along the axial direction of the pressure-bearing rod 210. By moving the pressure-bearing plate 220 toward the end of the alkali-treated bamboo rod body 100 and abutting against the rock layer or slope soil, the composite anchor rod is fixed to the rock layer or slope soil.
[0030] Specifically, the first end of the bearing rod 210 is inserted into the mounting groove, and the second end extends out of the mounting groove, with the first and second ends integrally formed. The bearing rod 210 can be a threaded rod with external threads, and the bearing plate 220 is a tray with an internally threaded hole. One end of the threaded rod is inserted into the mounting groove of the alkali-treated bamboo rod 100 and fixed by mortar 300, while the other end extends out of the mounting groove and is fitted with the tray. By tightening or loosening the tray along the threaded rod, the composite anchor is fixed to the rock strata or slope soil.
[0031] Furthermore, the installation groove is formed by removing 1-3 sections from the end of the alkali-treated bamboo pole 100, and the bearing rod 210 is fixed by injecting mortar 300 into the alkali-treated bamboo pole 100. The mortar 300 can be, for example, epoxy mortar or cement mortar. Injecting mortar 300 into the installation groove not only fixes the bearing rod 210, but also further enhances its mechanical properties, meets the strength requirements of the anchor rod in actual use, extends its service life, and reduces economic costs.
[0032] In some embodiments of this utility model, along the direction from the first end to the second end of the pressure rod 210, the cross-sectional area of the pressure plate 220 gradually decreases in each section perpendicular to the axial direction of the pressure rod 210.
[0033] By defining the shape of the bearing plate 220, the side of the bearing plate 220 that contacts the rock layer or slope soil can be guaranteed to have the maximum contact area, ensuring the stability of the installation, while reducing the amount of material used in the bearing plate 220 and saving costs.
[0034] Furthermore, the thickness of the pressure plate 220 is 120-300mm, and the outer surface of the pressure plate 220 is curved with a curvature of 0.2-0.5rad. The curvature of the tangent along any center line of the pressure plate 220 is consistent to ensure that the pressure plate 220 can withstand greater pressure and be subjected to uniform force.
[0035] Furthermore, the pressure plate 220 is made of rigid material, preferably low-carbon steel formed in one piece, to ensure that the pressure plate 220 has greater strength and improve its mechanical properties.
[0036] In some embodiments of this utility model, the fixing component 200 further includes a fastener 230, which is sleeved on the second end of the pressure rod 210, and the pressure plate 220 is located between the fastener 230 and the alkalized bamboo rod 100 for fastening the pressure plate 220.
[0037] Specifically, the fastener 230 can be a first fastening nut, and the tray is connected to the threaded rod through its internal thread and fastened by the first fastening nut. Preferably, a washer 240 is provided between the tray and the first fastening nut, such as a rubber washer 240, to strengthen the connection between the tray and the threaded rod.
[0038] In some embodiments of this utility model, a protective component 400 is also included. The protective component 400 is installed at the end of the second end of the pressure-bearing rod 210, and the fixing component 200 is located between the alkalized bamboo rod 100 and the protective component 400. The protective component 400 can avoid the safety hazards formed at the end of the pressure-bearing rod 210.
[0039] Specifically, the protective component 400 includes a sheath 410 and a second fastening nut 420. The sheath 410 is installed on the end of the bearing rod 210 by the second fastening nut 420, thereby improving the safety of the anchor bolt during use.
[0040] In some embodiments of this utility model, a reinforcing component 500 is also included, which is disposed around the outside of the alkalized bamboo pole 100 to enhance the friction between the anchor rod and the slope soil / rock layer.
[0041] Furthermore, the reinforcing component 500 consists of multiple sets of reinforcing ribs spaced apart. The width of each set of reinforcing ribs is 1-3cm, and the spacing between adjacent reinforcing ribs is 3-10cm. The width of the reinforcing ribs and the spacing between adjacent reinforcing ribs are not specifically limited and can be determined according to the actual situation. Preferably, the reinforcing ribs are made of carbon fiber cloth, which is not only more environmentally friendly but also has better adhesion to rock strata, etc. More preferably, the end of the alkali-treated bamboo pole 100 without the installation groove is wrapped with 3-7 layers of carbon fiber cloth, and the remaining reinforcing ribs are wrapped with 2-5 layers of carbon fiber cloth along the axial direction of the alkali-treated bamboo pole 100, which can effectively enhance the friction between the anchor and the slope soil / rock strata.
[0042] In summary, the anchor rod body of this utility model, made of alkalized bamboo, can meet the strength requirements of anchor rods in actual use, extend service life, reduce economic costs, and the bamboo can be naturally degraded after use, making it energy-saving and environmentally friendly.
[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A bamboo composite anchor rod, characterized in that, Includes alkalized bamboo poles and fixing components; An installation groove is formed inside one end of the alkalized bamboo material, and the installation groove is arranged along the axial direction of the alkalized bamboo material; the fixing component is fixed to one end of the alkalized bamboo material through the installation groove.
2. The fixing component includes a pressure-bearing element and a pressure-bearing plate; The first pressure-bearing end is inserted into the mounting groove of the alkalized bamboo material and fixed by mortar; the pressure-bearing plate is sleeved on the second pressure-bearing end and can move along the axial direction of the pressure-bearing end; The bamboo composite anchor also includes a reinforcing component, which is arranged around the outside of the alkalized bamboo body; The reinforcing component consists of multiple sets of reinforcing ribs spaced apart, with the distance between adjacent reinforcing ribs being 3-10cm; The reinforcing ribs are made of carbon fiber cloth.
3. The bamboo composite anchor bolt according to claim 1, characterized in that, Along the direction from the first end to the second end of the pressure-bearing plate, the cross-sectional area of each section of the pressure-bearing plate perpendicular to the pressure-bearing axis gradually decreases.
4. The bamboo composite anchor bolt according to claim 2, characterized in that, The outer surface of the pressure plate is curved, with a curvature ranging from 0.2 to 0.5 rad. The pressure plate is made of rigid material.
5. The bamboo composite anchor bolt according to claim 1, characterized in that, The fixing component also includes a fastener, which is sleeved on the second pressure-bearing end, and the pressure-bearing plate is located between the fastener and the alkalized bamboo body.
6. The bamboo composite anchor bolt according to claim 1, characterized in that, It also includes a protective component, which is installed at the end of the pressure-bearing second end, and the fixing component is located between the alkalized bamboo body and the protective component.