Threaded rib anchor cable and construction method

Abstract

The invention relates to the technical field of surrounding rock control and reinforcement, in particular to a threaded rib anchor cable and a construction method.The threaded rib anchor cable comprises a reinforcing transverse rib, a grouting pipe component and a plurality of cable ribs, and the cable ribs are spirally arranged on the grouting pipe component along the axis of the grouting pipe component; a plurality of reinforcing transverse ribs are arranged on the cable rib, the plurality of reinforcing transverse ribs are arranged at intervals in the axial direction of the grouting pipe component, and the reinforcing transverse ribs of the plurality of connected locking ribs are arranged at intervals in the circumferential direction of the grouting pipe component. According to the thread rib anchor cable, the anchoring strength can be improved, and then the supporting stability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of surrounding rock control and reinforcement, and in particular to a threaded rib anchor cable and a construction method. Background Art

[0002] Anchor cable is an engineering structure commonly used to reinforce slopes. It is mainly formed by injecting cement slurry or cement mortar into the anchor section of high-strength steel strands. After the grouting material reaches the strength specified by the design tensioning, a through-hole jack is used to tension the steel strands to apply a certain prestress. The soil of the slope is further squeezed under the action of the anchor cable, thereby increasing the compactness of the soil and improving the stability of the slope.

[0003] The surface of the anchor cables currently available on the market is smooth. Although the strength of these anchor cables themselves is constantly improving, the strength of the bonding structure between them and the injected anchoring agent has not been significantly improved, resulting in the inability to effectively increase the anchoring force. Summary of the Invention

[0004] The present application provides a threaded rib anchor cable, which can improve the anchoring strength and thus improve the stability of the support.

[0005] The threaded rib anchor cable according to an embodiment of the present invention comprises:

[0006] A grouting pipe component and a plurality of reinforcing bars, wherein the plurality of reinforcing bars are spirally arranged on the grouting pipe component along the axis of the grouting pipe component;

[0007] Reinforcing transverse ribs, a plurality of reinforcing transverse ribs are arranged on the cable reinforcement, the plurality of reinforcing transverse ribs are arranged at intervals in the axial direction of the grouting pipe component, and the reinforcing transverse ribs of a plurality of connected locking bars are arranged at intervals in the circumferential direction of the grouting pipe component.

[0008] The threaded rib anchor cable of the embodiment of the present application can improve the anchoring strength and thus improve the stability of the support.

[0009] In some embodiments, the plurality of reinforcing transverse ribs have a first preset interval A in the axial direction of the grouting pipe component, and 10≤A≤40mm.

[0010] In some embodiments, the reinforcing transverse ribs extend on the axis of the grouting pipe component, and the reinforcing transverse ribs are spirally arranged on the cable reinforcement along the axial direction of the grouting pipe. The maximum radial dimension of the reinforcing transverse ribs in the radial direction of the grouting pipe component is B, and 1.0mm≤B≤2.0mm.

[0011] In some embodiments, the reinforcing transverse rib includes a first section, a plane section, and a second section connected in sequence along the axial direction of the grouting pipe component. The radial dimension of the first section gradually increases in a direction approaching the plane section, and the radial dimension of the second section gradually decreases in a direction away from the plane section.

[0012] Furthermore, the radial dimensions of the first section, the plane section and the second section gradually increase from the end to the center.

[0013] In some embodiments, the reinforcing transverse ribs and cable reinforcements are made of high-strength low-alloy steel or austenitic stainless steel, and the surface of the locking reinforcement is galvanized, or the outer periphery of the cable reinforcement is covered with a corrosion-resistant coating, and the corrosion-resistant coating is made of epoxy coating or polyurethane coating.

[0014] In some embodiments, the threaded rib anchor cable also includes a plurality of eccentric anchor rings, the plurality of cable reinforcements are provided with grooves corresponding to the eccentric anchor rings, the plurality of cable reinforcements are spirally arranged along the axial direction of the grouting pipe component to form an anchor cable body, the plurality of eccentric anchor rings are sleeved on the anchor cable body along the axial direction of the grouting pipe component, the eccentric anchor rings are provided with eccentric protrusions, and the eccentric protrusions are staggered in the axial direction of the grouting pipe component.

[0015] In some embodiments, the radial dimension of the eccentric anchor ring first increases and then decreases along the axis of the grouting pipe.

[0016] In some embodiments, the grouting pipe component includes a grouting pipe and a plurality of first ribs, and the plurality of first ribs are spirally arranged on the grouting pipe along the axial direction of the grouting pipe component.

[0017] The threaded rib anchor cable construction method according to an embodiment of the present invention utilizes the threaded rib anchor cable described above and is characterized by comprising:

[0018] Drilling the target area;

[0019] Install the anchor cable and grout the drill hole once, and vibrate the anchor cable during the grouting process;

[0020] After waiting for the preset time for the first grouting, the second grouting is carried out and the preset pressure is maintained after the grouting.

[0021] The threaded rib anchor cable construction method of the embodiment of the present application can improve the anchoring strength and thereby improve the stability of the support.

[0022] In some implementations, during the primary grouting, epoxy resin is used for grouting, and the epoxy resin is any one of high-purity epoxy resin, phenolic epoxy resin, glycidyl ester epoxy resin, and alicyclic epoxy resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 A schematic diagram of a threaded rib anchor provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of a grouting pipe component provided in an embodiment of the present application;

[0026] Figure 3 This is a schematic diagram of a grouting pipe according to an embodiment of the present application;

[0027] Figure 4 A schematic diagram of a cable reinforcement is provided for an embodiment of the present application;

[0028] Figure 5 This is a schematic diagram of reinforcing transverse ribs according to an embodiment of the present application;

[0029] Figure 6 This is one of the schematic diagrams of the eccentric anchoring ring according to an embodiment of the present application;

[0030] Figure 7 A schematic diagram of an eccentric protrusion according to an embodiment of the present application;

[0031] Figure 8 This is the second schematic diagram of the eccentric anchoring ring according to an embodiment of the present application.

[0032] The above drawings include the following reference numerals:

[0033] Grouting pipe component 1, grouting pipe 11, first rib 12,

[0034] Cable reinforcement 2, reinforcing transverse rib 3, first section 31, plane section 32, second section 33,

[0035] Eccentric anchoring ring 4, eccentric protrusion 41. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0037] It should be noted 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", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present application. The terms "mounted", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two elements. The terms "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, where the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes both absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism may be, for example, within 5°; "perpendicular" includes both absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity may also be, for example, within 5°. "Equal" includes both absolute equality and approximate equality, where the acceptable deviation range for approximate equality may be, for example, that the difference between the two is less than or equal to 5% of either. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0038] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0039] The threaded rib anchor cable of the embodiment of the present invention comprises: a reinforcing transverse rib 3, a grouting pipe component 1 and a plurality of cable reinforcements 2, wherein the plurality of cable reinforcements 2 are spirally arranged on the grouting pipe component 1 along the axis of the grouting pipe component 1;

[0040] A plurality of reinforcing transverse ribs 3 are provided on the cable reinforcement 2 , and the plurality of reinforcing transverse ribs 3 are spaced apart in the axial direction of the grouting pipe component 1 , and the reinforcing transverse ribs 3 of the plurality of connected locking bars are spaced apart in the circumferential direction of the grouting pipe component 1 .

[0041] The threaded rib anchor cable of the embodiment of the present application can improve the anchoring strength and thus improve the stability of the support.

[0042] Specifically, if Figures 1 to 7As shown, the grouting pipe component 1 extends along the front-back direction, and a plurality of reinforcing bars 2 are spirally arranged on the grouting pipe component 1, and the reinforcing bars 2 spirally extend along the axial direction of the grouting pipe component 1.

[0043] Each cable reinforcement 2 is provided with a plurality of reinforcing transverse ribs 3. The plurality of reinforcing transverse ribs 3 are arranged at intervals along the axial direction of the grouting pipe component 1 on a single cable reinforcement 2. The reinforcing transverse ribs 3 on multiple cables 2 are arranged at intervals along the axial direction of the grouting pipe component 1. The reinforcing transverse ribs 3 on multiple different cables 2 are also arranged at intervals circumferentially of the grouting pipe component 1. The reinforcing transverse ribs 3 have a predetermined thickness in the radial direction of the grouting pipe component 1.

[0044] During grouting construction, the reinforcing transverse ribs 3 on the cable reinforcement 2 have a certain disturbing effect on the slurry, which is more conducive to expelling the air in the slurry from the drill hole, avoiding the appearance of voids in the anchoring section, and compacting the slurry at the anchoring end to improve the anchoring structure strength of the anchoring section and improve the support effect.

[0045] At the same time, during grouting, the reinforcing transverse ribs 3 also have a certain diversion effect on the slurry, diverting the slurry to the hole wall, increasing the contact area between the slurry and the hole wall after solidification, and avoiding uneven distribution of the slurry.

[0046] At the same time, the reinforcing transverse rib 3 itself can extend into the hole wall, thereby increasing the anchoring force during anchoring to improve the anchoring strength.

[0047] The threaded rib anchor cable of the embodiment of the present application is provided with a plurality of reinforcing transverse ribs 3, and the plurality of reinforcing transverse ribs 3 have preset dimensions in the radial direction of the grouting pipe component 1, thereby being able to guide and disturb the slurry during grouting, reduce the amount of gas in the slurry, avoid the occurrence of voids in the anchoring, and improve the anchoring strength. During anchoring, the reinforcing transverse ribs 3 can also extend into the borehole wall, thereby improving the anchoring strength and thereby improving the stability of the support.

[0048] In some embodiments, the plurality of reinforcing transverse ribs 3 have a first preset interval A in the axial direction of the grouting pipe component 1 , and 10 mm ≤ A ≤ 40 mm.

[0049] Specifically, if Figures 1 to 7As shown, A can be 10mm, 11mm, 13mm, 15mm, 21mm, 23mm, 25mm, 33mm, 35mm, 36mm, 37mm, 38mm, and 40mm. The spacing of the reinforcing transverse ribs 3 in the front-to-back direction is set to between 10mm and 40mm to avoid the reinforcing transverse ribs 3 blocking the grouting due to a too small spacing, so as to avoid excessive obstruction of the slurry flow. And avoid excessive spacing resulting in a decrease in the diversion effect during grouting or a decrease in the slurry disturbance effect. Or it can be understood as preventing the reinforcing transverse ribs 3 from causing excessive obstruction to the grouting process due to a too small spacing, ensuring that the slurry can flow smoothly, and avoiding excessive spacing resulting in a weakening of the diversion effect during grouting, as well as a reduction in the disturbance effect on the slurry, thereby improving the stability and safety of the anchoring.

[0050] In some embodiments, the reinforcing transverse ribs 3 extend on the axis of the grouting pipe component 1, and the reinforcing transverse ribs 3 are spirally arranged on the cable reinforcement 2 along the axial direction of the grouting pipe 11. The maximum radial dimension of the reinforcing transverse ribs 3 in the radial direction of the grouting pipe component 1 is B, and 1.0mm≤B≤2.0mm.

[0051] Specifically, if Figures 1 to 7 As shown, the reinforcing transverse rib 3 extends in the front-to-back direction and is arranged obliquely relative to the axis of the grouting pipe 11, or it can be understood that the reinforcing transverse rib 3 is spirally arranged in the axial direction of the grouting pipe 11, thereby facilitating the air in the slurry to be guided up. The reinforcing transverse rib 3 has a maximum radial dimension B in the radial direction of the grouting pipe 11. It can be understood that the radial dimension of the reinforcing transverse rib 3 gradually increases from the end to the center. It can be understood that the radial dimension of the reinforcing transverse rib 3 at the end of the grouting pipe component 1 is 1.0 mm, and at the center of the reinforcing transverse rib 3, the radial dimension of the grouting pipe component 1 is 2.0 mm. By spirally arranging the reinforcing transverse rib 3 on the grouting pipe component 1 and increasing the radial dimension of the reinforcing transverse rib 3 from the end to the center during grouting, it is more conducive to guiding and guiding the slurry, so as to guide the air in the slurry and improve the strength of the anchoring structure.

[0052] In some embodiments, the reinforcing transverse rib 3 includes a first section 31, a plane section 32, and a second section 33 that are sequentially connected along the axial direction of the grouting pipe component 1. The radial dimension of the first section 31 in the grouting pipe component 1 gradually increases in the direction approaching the plane section 32, and the radial dimension of the second section 33 in the grouting pipe component 1 gradually decreases in the direction away from the plane section 32.

[0053] Furthermore, radial dimensions of the first section 31 , the plane section 32 and the second section 33 gradually increase from the end to the center.

[0054] In the front-to-back direction, the first section 31 gradually increases from front to back in the radial direction of the grouting pipe component 1.

[0055] The reinforcing transverse rib 3 is composed of a first section 31, a flat section 32, and a second section 33 connected in sequence, and has different mechanical properties at different positions to adapt to the complex stress state that the grouting pipe 11 is subjected to during the grouting process. For example, the gradual change in the radial dimensions of the first section 31 and the second section 33 can disperse stress concentration and avoid damage to the reinforcing transverse rib 3 due to excessive local stress, thereby improving the overall structural stability of the grouting pipe 11. The segmented design of the reinforcing transverse rib 3 and the change in radial dimensions can produce more complex diversion and disturbance effects on the slurry during the grouting process. The first section 31 gradually increases in size, which can guide the slurry to better enter the reinforcing transverse rib 3 area and increase the contact area between the slurry and the reinforcing transverse rib 3. The flat section 32 plays a role in stabilizing the flow of the slurry. The second section 33 gradually decreases in size, which helps the slurry to flow more smoothly when leaving the reinforcing transverse rib 3 area, reduces the amount of slurry remaining in the grouting pipe 11, and improves the grouting efficiency. The segmented design combined with the spiral layout is more conducive to guiding and discharging air in the slurry. When the slurry passes through the reinforcing transverse ribs 3, the air is more easily driven to rise due to the change in radial dimensions and the guidance of the segmented structure, thereby reducing bubbles in the grouting body and improving the grouting quality.

[0056] Furthermore, the first section 31 is arranged close to the grouting direction, and its radial dimension gradually increases in the direction close to the plane section 32. This design can guide the slurry into the area of ​​the reinforced transverse rib 3. Just like a gradually expanding channel, it allows the slurry to flow in more smoothly, reduces the blockage and turbulence of the slurry at the entrance, and improves the flow efficiency of the slurry. As the radial dimension increases, the contact area between the reinforced transverse rib 3 and the slurry also gradually increases, which helps to strengthen the disturbing effect of the transverse rib 3 on the slurry, makes the particles in the slurry more evenly distributed, and improves the density of the grouting body. The radial dimension of the plane section 32 gradually increases from the end to the center position, but the change is relatively gentle. This design can provide a relatively stable flow environment when the slurry flows through the plane section 32, so that the slurry can maintain a relatively uniform flow rate and flow direction, reduce the fluctuation and vortex of the slurry, and ensure the stability of the grouting process. The planar section 32 serves as a transition between the first section 31 and the second section 33. Its radial dimension changes provide a smooth transition, preventing turbulent flow caused by sudden dimensional changes when the slurry enters the second section 33 from the first section 31, allowing the slurry to pass more smoothly through the reinforcing transverse rib 3. The second section 33, facing away from the grouting direction, gradually decreases in radial dimension as it moves away from the planar section 32. This design facilitates smoother slurry flow as it exits the reinforcing transverse rib 3. The gradually shrinking channel creates a pressure gradient as the slurry exits the reinforcing transverse rib 3, promoting slurry flow.

[0057] By designing the radial dimension to be gradually reduced, the slurry residue at the end of the reinforcing transverse rib 3 can be effectively reduced, thereby avoiding the formation of dead corners in a certain area and improving the uniformity and integrity of the grouting.

[0058] Furthermore, the reinforcing transverse ribs 3 and the cable reinforcement 2 are made of high-strength low-alloy steel or austenitic stainless steel, and the surface of the locking bar is galvanized, or the outer surface of the cable reinforcement 2 is coated with a corrosion-resistant coating, and the corrosion-resistant coating is made of an epoxy coating or a polyurethane coating. The surface of the cable reinforcement 2 is galvanized, and the zinc layer can form a dense protective film on the surface of the cable reinforcement 2, effectively isolating the air, moisture and other corrosive media from contact with the cable reinforcement 2, thereby preventing the cable reinforcement 2 from electrochemical corrosion. Alternatively, the outer surface of the cable reinforcement 2 and the reinforcing transverse ribs 3 is wrapped with an epoxy coating or a polyurethane coating, forming a protective layer on the surface of the cable reinforcement 2, preventing corrosive substances from penetrating into the cable reinforcement 2 matrix, and providing long-term and reliable anti-corrosion protection for the cable reinforcement 2. The epoxy coating or polyurethane coating has good adhesion to the surface of the cable reinforcement 2, can be tightly combined, and is not easy to fall off. The epoxy coating or polyurethane coating also has a certain degree of flexibility, can adapt to the deformation and vibration of the cable reinforcement 2 during use, and will not cause the coating to crack due to slight displacement of the cable reinforcement 2, thereby ensuring the durability of the anti-corrosion effect. Epoxy and polyurethane coatings can be applied through a variety of methods, including spraying and brushing, with relatively simple and convenient construction. By applying a corrosion-resistant coating, anchor cables can adapt to a variety of complex geological conditions, such as highly corrosive environments and high-stress conditions, effectively enhancing safety in coal mines and underground projects.

[0059] In some embodiments, the threaded rib anchor cable also includes a plurality of eccentric anchor rings 4, a plurality of cable reinforcements 2 are provided with grooves corresponding to the eccentric anchor rings 4, a plurality of cable reinforcements 2 are spirally arranged along the axial direction of the grouting pipe component 1 to form an anchor cable body, a plurality of eccentric anchor rings 4 are sleeved on the anchor cable body along the axial direction of the grouting pipe component 1, the eccentric anchor rings 4 are provided with eccentric protrusions 41, and the eccentric protrusions 41 are staggered in the axial direction of the grouting pipe component 1.

[0060] Specifically, if Figures 1 to 7 As shown, the eccentric anchor ring 4 can be arranged in the axial direction of the grouting pipe component 1, and the eccentric protrusions 41 of the eccentric anchor ring 4 are staggered in the axial direction of the grouting pipe component 1 to facilitate the disturbance of the slurry during grouting to facilitate gas conduction, and the staggered arrangement facilitates the injection of the slurry. At the same time, the eccentric anchor ring 4 is detachably mounted on the cable reinforcement 2, and on-site personnel can determine whether to install the segregation anchor ring based on actual conditions.

[0061] Furthermore, if Figure 8 As shown, the radial dimension of the eccentric anchor ring 4 first increases and then decreases along the axial direction of the grouting pipe 11, thereby avoiding excessive obstruction to the slurry and improving the stability of grouting.

[0062] In some embodiments, the grouting pipe component 1 includes a grouting pipe 11 and a plurality of first ribs 12. The plurality of first ribs 12 are spirally arranged on the grouting pipe 11 along the axial direction of the grouting pipe component 1.

[0063] The grouting pipe 11 extends in the front-to-back direction, and a plurality of first ribs 12 are spirally arranged on the grouting pipe 11 to improve the structural strength of the grouting pipe 11. A method for constructing a threaded rib anchor cable according to an embodiment of the present invention, utilizing the threaded rib anchor cable, includes drilling a hole in a target area, installing the anchor cable, and performing a primary grouting of the hole, vibrating the anchor cable during the grouting process, performing a secondary grouting after a preset time after the primary grouting, and maintaining a preset pressure after the grouting.

[0064] Specifically, if Figures 1 to 7 As shown in the figure, after the anchor cable is installed, the borehole is grouted once. During the grouting process, the anchor cable is vibrated by a device to combine with the reinforcing transverse ribs 3 on the anchor cable to expel gas from the slurry. At the same time, when the slurry solidifies, the reinforcing transverse ribs 3 increase the contact area and friction between the anchor cable and the borehole wall. This allows the anchor cable to better resist external pressure, improve anchoring strength, effectively prevent anchor cable pullout or anchor failure, and enhance support effectiveness.

[0065] In some implementations, epoxy resin is used for grouting during the first grouting, and the epoxy resin is any one of high-purity epoxy resin, phenolic epoxy resin, glycidyl ester epoxy resin, and alicyclic epoxy resin. After injection, the resin can quickly fill the interrib space in the anchor cable to form a dense anchoring layer, thereby significantly improving the density of the anchoring section and reducing the void phenomenon during construction operations. The anchoring effect and quality are guaranteed, the overall construction efficiency is improved, and labor costs are reduced. Cement grouting is used during the second grouting to reduce the anchoring cost. The above is a detailed introduction to the method provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A threaded rib anchor cable, characterized in that: include: A grouting pipe component and a plurality of reinforcing bars, wherein the plurality of reinforcing bars are spirally arranged on the grouting pipe component along the axis of the grouting pipe component; Reinforcing transverse ribs, a plurality of reinforcing transverse ribs are arranged on the cable reinforcement, the plurality of reinforcing transverse ribs are arranged at intervals in the axial direction of the grouting pipe component, and the reinforcing transverse ribs of a plurality of connected locking bars are arranged at intervals in the circumferential direction of the grouting pipe component.

2. The threaded rib anchor according to claim 1, characterized in that: The plurality of reinforcing transverse ribs have a first preset interval A in the axial direction of the grouting pipe component, and 10≤A≤40mm.

3. The threaded rib anchor cable according to claim 2, characterized in that: The reinforcing transverse ribs extend on the axis of the grouting pipe component, and the reinforcing transverse ribs are spirally arranged on the cable reinforcement along the axial direction of the grouting pipe. The maximum radial dimension of the reinforcing transverse ribs in the radial direction of the grouting pipe component is B, and 1.0mm≤B≤2.0mm.

4. The threaded rib anchor cable according to claim 3, characterized in that: The reinforcing transverse rib comprises a first section, a plane section and a second section which are sequentially connected along the axial direction of the grouting pipe component. The radial dimension of the first section gradually increases in the direction approaching the plane section, and the radial dimension of the second section gradually decreases in the direction away from the plane section. Furthermore, the radial dimensions of the first section, the plane section and the second section gradually increase from the end to the center.

5. The threaded rib anchor cable according to claim 2, characterized in that: The reinforcing transverse ribs and cable reinforcements are made of high-strength low-alloy steel or austenitic stainless steel, and the surface of the locking reinforcement is galvanized, or the outer periphery of the cable reinforcement is covered with a corrosion-resistant coating, and the corrosion-resistant coating is made of epoxy coating or polyurethane coating.

6. The threaded rib anchor cable according to claim 5, characterized in that: It also includes a plurality of eccentric anchoring rings, the plurality of reinforcing bars are provided with grooves corresponding to the eccentric anchoring rings, the plurality of reinforcing bars are spirally arranged along the axial direction of the grouting pipe component to form an anchor body, the plurality of eccentric anchoring rings are sleeved on the anchor body along the axial direction of the grouting pipe component, the eccentric anchoring rings are provided with eccentric protrusions, and the eccentric protrusions are staggered in the axial direction of the grouting pipe component.

7. The threaded rib anchor cable according to claim 6, characterized in that: The radial dimension of the eccentric anchor ring first increases and then decreases along the axis direction of the grouting pipe.

8. The threaded rib anchor cable according to claim 6, characterized in that: The grouting pipe component includes a grouting pipe and a plurality of first ribs, and the plurality of first ribs are spirally arranged on the grouting pipe along the axial direction of the grouting pipe component.

9. A method for constructing a threaded rib anchor cable, using the threaded rib anchor cable according to any one of claims 1 to 8, characterized in that: include: Drilling the target area; Install the anchor cable and grout the drill hole once, and vibrate the anchor cable during the grouting process; After waiting for the preset time for the first grouting, the second grouting is carried out and the preset pressure is maintained after the grouting.

10. The threaded rib anchor cable construction method according to claim 9, characterized in that: During the primary grouting, epoxy resin is used for grouting, and the epoxy resin is any one of high-purity epoxy resin, phenolic epoxy resin, glycidyl ester epoxy resin, and alicyclic epoxy resin.

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