Supporting anchor cable and supporting structure

Abstract

The utility model relates to the technical field of support, especially a support anchor cable and support structure, including a plurality of cable; anchor head, the anchor head includes cylinder and the taper head connected with the lower end of cylinder, the cylinder with the taper head forms a cavity, the spherical anchor fastener that is consolidated from the end of a plurality of cable, the spherical anchor fastener is accommodated in the cavity, and its outer diameter is greater than the entrance aperture diameter of cable and enters the cylinder, the insert block, a plurality of insert blocks can be radially mobile and set up in the lateral wall circumference of cylinder. The anchor head is arranged in the intersection point of at least two cable paths in the non-boundary area inside the wire mesh, since the internal intersection point naturally becomes the common anchoring center of a plurality of cables, one anchor head can replace the plurality of anchor heads that the corner part can need in the traditional scheme, thereby under the premise of guaranteeing the effective tensioning of the wire mesh, the total number of anchor heads is greatly reduced, and the material cost is directly reduced.

Description

Technical Field

[0001] This utility model relates to the field of support technology, and in particular to a support anchor cable and support structure. Background Technology

[0002] In the field of flexible support for slope and foundation pit engineering, a support structure combining wire mesh and anchoring systems is often used to suppress deformation and damage of the slope soil and rock mass. In existing technology, a conventional approach involves laying wire mesh on the slope and then fixing it with anchor cables at numerous internal nodes. While this ensures overall integrity, it results in a large amount of anchor cables, low construction efficiency, and poor economic performance. To address this, an improved solution is proposed: using several iron chains as main tie rods, arranging them along the boundaries and diagonals of the wire mesh, and anchoring only the ends of the chains. Although this method significantly reduces the total amount of anchor cables, due to the converging nature of the chain paths, multiple anchoring points inevitably converge in the corner areas of the wire mesh, such as the endpoints of adjacent side chains and diagonal chains, resulting in a dense arrangement of anchor cables in that local area.

[0003] However, in actual engineering projects, especially in foundation pit support scenarios with confined spaces and close proximity to important buildings or pipelines, the aforementioned improved solutions have revealed significant drawbacks. Because multiple anchor cables are concentrated in the corner area, and each anchor cable requires a certain amount of working space and anchoring depth, this easily leads to interference between anchor cable positions in narrow working areas. This not only increases construction difficulty but also results in localized material waste. Specifically, in such constrained environments, the actual support function of some of the dense anchor cable groups at the corner highly overlaps with that of the remaining anchor cables, resulting in extremely low marginal benefits and creating "functional redundancy." However, these redundant anchor cables still occupy valuable space and consume an equal amount of materials and labor. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is that in the prior art, the concentrated arrangement of anchor cables at the corners of wire mesh in a narrow support space leads to functional redundancy and local waste of materials.

[0005] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a support anchor cable, including multiple cables; an anchor head, the anchor head including a cylinder and a cone connected to the lower end of the cylinder, the cylinder and the cone forming a cavity; a spherical anchor formed by fixing the ends of the multiple cables together, the spherical anchor being accommodated in the cavity, and its outer diameter being larger than the inlet diameter of the cable entering the cylinder; and inserts, multiple inserts being radially movable and arranged on the circumference of the side wall of the cylinder.

[0006] In a preferred embodiment of the support anchor cable of this utility model: the side wall of the cylinder is provided with mounting holes matching the number of the inserts, and the inserts are slidably disposed in the mounting holes.

[0007] In a preferred embodiment of the support anchor cable of this utility model: two parallel straight grooves are provided on the insert block, and two fixing rods are provided in the mounting hole, each fixing rod corresponding to one straight groove.

[0008] In a preferred embodiment of the support anchor cable of this utility model: the inner wall of the cylinder has an inwardly tapered surface, and the inlet of the cylinder is the minimum diameter of the tapered surface.

[0009] In a preferred embodiment of the support anchor cable of this utility model: a swivel is provided at the upper end of the anchor head, the swivel is rotatably sleeved on the outside of the cable, and a protrusion is provided on its inner side for separating each cable.

[0010] In a preferred embodiment of the support anchor cable of this utility model: the anchor head further includes a straight rod, the lower end of which abuts against the spherical anchor, and the upper end of which is located in the arc-shaped groove of the swivel ring, so that the axial movement of the straight rod can drive the swivel ring to rotate.

[0011] In a preferred embodiment of the support anchor cable of this utility model: the spherical anchor is a high-strength concrete casting.

[0012] The above-mentioned technical problems are solved by the following technical solution: This utility model also proposes a support structure, including the support anchor cable, and also includes a wire mesh laid on the soil support surface; wherein, the cable passes through the mesh holes of the wire mesh.

[0013] In a preferred embodiment of the support structure described in this utility model: the path of the cable is arranged along the boundary and diagonal of the wire mesh.

[0014] In a preferred embodiment of the support structure of this utility model: the anchor head is disposed at the intersection of at least two cable paths, and the intersection is located in the non-boundary area inside the wire mesh.

[0015] The beneficial effects of this utility model are as follows: The support structure of this application sets the anchor head at the intersection of at least two cable paths in the non-boundary area inside the wire mesh. This layout fundamentally changes the traditional approach of densely setting multiple anchor heads at the corners of the mesh. Since the internal intersection point naturally becomes the common anchoring center of multiple cables (such as side chains and diagonal chains), one anchor head can replace multiple anchor heads that may be needed at the corners in the traditional approach. Thus, while ensuring effective tensioning of the wire mesh, the total number of anchor heads is greatly reduced. This not only directly reduces material costs, but also avoids the interference and inconvenience caused by dense anchoring construction in the space-constrained corner areas, realizing the transformation from "local redundancy" to "overall optimization".

[0016] This invention achieves adaptive enhancement and comprehensive improvement in reliability during the stress process through the anchor head. This effect is achieved through a two-stage linkage mechanism: First, when the cable is pulled by the force and moves the spherical anchor towards the cylinder inlet, the spherical surface will squeeze the inserts arranged circumferentially on the side wall of the cylinder, forcing them to extend outward along the conical guide surface and embed into the surrounding soil. This "wedge-shaped diameter expansion" mechanism directly converts the axial pull-out force into the radial anchoring force, forming the first layer of mechanical self-locking, which greatly enhances the pull-out resistance. Secondly, the upward movement of the spherical anchor synchronously pushes the straight rod. Through the cooperation of the drive part at its top and the arc-shaped groove inside the swivel, the axial motion is converted into the rotation of the swivel. The rotation of the swivel causes its inner protrusion to be further tightened at the stress concentration root. This "automatic tightening" mechanism brings dual benefits: on the one hand, the overall strength and fatigue resistance of the tightened cable bundle are enhanced, effectively preventing the premature breakage of a single cable; on the other hand, the tightened cable bundle forms a denser seal at the anchor head inlet, blocking the intrusion of mud, sand and water, and improving long-term durability. These two mechanisms work together to enable the support structure to "tighten more and more" when subjected to external forces, achieving self-reinforcement of safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein:

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the support anchor cable. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the support anchor cable. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the anchor cable for this support.

[0021] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0022] Figure 5 for Figure 3 Enlarged schematic diagram of the B-structure;

[0023] Figure 6 This is a three-dimensional schematic diagram of the support structure.

[0024] In the picture:

[0025] 1. Cable; 2. Anchor head; 21. Cylinder; 211. Mounting hole; 212. Fixing rod; 213. Conical surface; 214. Inlet; 22. Conical head; 23. Cavity; 3. Spherical anchor; 4. Insert block; 41. Straight groove; 5. Rotary ring; 51. Protrusion; 52. Arc-shaped inclined groove; 6. Straight rod; 61. Drive unit; 7. Wire mesh; 71. Mesh hole. Detailed Implementation

[0026] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0027] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0028] Reference Figures 1-5 This embodiment provides a support anchor cable, including multiple cables 1; an anchor head 2, which includes a cylinder 21 and a cone 22 connected to the lower end of the cylinder 21, the cylinder 21 and the cone 22 forming a cavity 23; a spherical anchor 3 formed by fixing the ends of the multiple cables 1 together, the spherical anchor 3 being accommodated in the cavity 23, and its outer diameter being larger than the inlet 214 aperture through which the cables 1 enter the cylinder 21; and insert blocks 4, multiple insert blocks 4 being radially movable and arranged on the circumference of the side wall of the cylinder 21.

[0029] This support anchor cable includes multiple cables 1, a dedicated anchor head 2, and a spherical anchor 3 formed from the end of the cables 1. The cables 1 can be made of high-strength, corrosion-resistant steel strand or iron chain, and their number is determined according to the actual support strength requirements. The anchor head 2 consists of two parts: a cylindrical body 21 and a conical head 22. The cylindrical body 21 is cylindrical, and its lower end is detachably connected to the conical head 22 by threads, so that the cylindrical body 21 and the conical head 22 together form an internal cavity 23. The upper end of the cylindrical body 21 has an inlet 214 for the cables 1 to pass through, and the lower end has an outlet for the cables 1 to exit.

[0030] The ends of multiple cables 1 are solidified into an integral spherical anchor 3 by pouring high-strength concrete or other high-strength cementitious materials. The spherical anchor 3 is housed in the cavity 23, and its outer diameter is designed to be larger than the inlet 214 at the upper end of the cylinder 21. This dimensional relationship ensures that the spherical anchor 3 cannot be pulled out of the cylinder 21 when subjected to tension, thereby effectively transferring the tension to the anchor head 2 body. To further enhance the anchoring force, multiple mounting holes 211 are provided on the circumference of the side wall of the cylinder 21, and multiple inserts 4 are respectively disposed in these mounting holes 211, so that the inserts 4 can move in the radial direction of the cylinder 21. The inner wall of the cylinder 21 is machined with an inwardly tapered surface 213. When the spherical anchor 3 moves upward in the cavity 23, its spherical surface will squeeze the inner surface of these inserts 4, forcing the inserts 4 to extend outward along the tapered surface 213.

[0031] As a preferred embodiment, the anchor head 2 may further include a straight rod 6, the lower end of which abuts against the spherical anchor 3. A rotating ring 5 is provided at the upper end of the anchor head 2, i.e., where the cable 1 extends out of the cylinder 21. The rotating ring 5 is rotatably mounted on the cylinder 21 by a bearing or similar rotating pair. Multiple radial protrusions 51 are evenly distributed on the inner circumference of the rotating ring 5. These protrusions 51 can be inserted into the gaps between multiple cables 1, thereby effectively separating each cable 1. The straight rod 6 is provided with protrusions 51, and an arc-shaped inclined groove 52 is correspondingly opened on the inner wall of the rotating ring 5. The protrusions 51 are embedded in the arc-shaped inclined groove 52. When the straight rod 6 moves axially relative to the rotating ring 5, the axial movement of the straight rod 6 can be converted into the rotational movement of the rotating ring 5 through the inclined surface action of the protrusions 51 and the arc-shaped inclined groove 52.

[0032] Furthermore, the side wall of the cylinder 21 is provided with mounting holes 211 that match the number of inserts 4. The inserts 4 are slidably disposed in the mounting holes 211. Two parallel straight grooves 41 are provided on the inserts 4. Two fixing rods 212 are provided in the mounting holes 211, and each fixing rod 212 corresponds to one straight groove 41.

[0033] To ensure the stability and reliability of the insert 4 during radial movement, mounting holes 211 matching the number of inserts 4 are provided on the circumference of the side wall of the cylinder 21. The insert 4 is slidably disposed in the mounting holes 211 to achieve precise guidance of the movement trajectory of the insert 4 and to prevent it from rotating or falling out of the mounting holes 211 during operation. A guide and limiting structure is also provided. Specifically, two parallel straight grooves 41 are provided on the side of the insert block 4, extending radially through the insert block 4. Correspondingly, two fixing rods 212 are fixedly provided on the inner wall of the mounting hole 211. The position of the fixing rods 212 corresponds one-to-one with the straight grooves 41, so that each fixing rod 212 can be embedded in the corresponding straight groove 41. Through this cooperation of "fixing rods 212 and straight grooves 41", the insert block 4 is constrained to slide stably only along the trajectory defined by the fixing rods 212, that is, the radial direction of the cylinder 21. The two parallel straight grooves 41 and the fixing rods 212 form a double guide rod sliding pair, which effectively avoids jamming or deflection of the insert block 4 during movement. At the same time, the length of the straight grooves 41 also naturally limits the limit stroke of the insert block 4 inward retraction and outward extension, ensuring the safety and reliability of the mechanism.

[0034] Furthermore, the inner wall of the cylinder 21 has an inwardly tapered surface 213, and the inlet 214 of the cylinder 21 is the minimum diameter of the tapered surface 213. The spherical anchor 3 is a high-strength concrete casting.

[0035] The inner wall of the cylinder 21 is machined with an inwardly tapered surface 213. The tapered surface 213 gradually narrows from the inside of the cylinder 21 toward the entrance 214 at the upper end of the cylinder 21. The minimum diameter of the tapered surface 213 constitutes the entrance 214 of the cylinder 21. When the spherical anchor 3 moves toward the entrance 214 of the cylinder 21 under tension, the space between its spherical surface and the tapered surface 213 gradually shrinks, thereby generating uniform and continuous radial compression on the insert 4 set therebetween. Guided by the tapered surface 213, the insert 4 can smoothly and synchronously extend outward, thereby reliably embedding into the surrounding rock and soil, forming a firm mechanical self-locking.

[0036] The spherical anchor 3 is made of high-strength concrete. The ends of the multiple cables 1 gathered at the anchor head 2 are loosened, then placed into a mold, and high-strength cement mortar or fine-aggregate concrete is poured. After vibration and thorough curing, a solid spherical composite component is formed, tightly wrapping and solidifying the ends of the multiple cables 1 into a single unit. This concrete spherical anchor 3 not only possesses extremely high compressive strength, effectively withstanding the compressive force from the insert block 4, but also exhibits a bond force between itself and the cables 1 generated through coagulation that is far greater than the strength of a single cable 1. This ensures reliable transmission of force between the cable bundle 1 and the internal forces of the anchor head 2. This structure concentrates the dispersed forces of the multiple cables 1 into a single point, greatly enhancing the integrity and load-bearing capacity of the anchor head 2 root.

[0037] The upper end of the anchor head 2 is provided with a swivel ring 5, which is rotatably fitted around the outside of the cable 1, and its inner side is provided with a protrusion 51 for separating each cable 1.

[0038] To optimize the stress state of the cable 1 at the root of the anchor head 2 and improve its overall integrity, a rotating ring 5 is provided at the upper end of the anchor head 2. The rotating ring 5 is rotatably installed on the periphery of the outlet of the cylinder 21 through a bearing or bushing structure. Its central through hole allows multiple cables 1 to pass through it. Multiple radially inward protrusions 51 are integrally formed or fixedly provided on the inner circumferential surface of the rotating ring 5 facing the cables 1. These protrusions 51 are evenly distributed along the circumference of the rotating ring 5, and their shape and number match the bundle of cables 1 passing through. When multiple cables 1 pass through the rotating ring 5, each protrusion 51 is precisely embedded in the natural gap between adjacent cables 1, thereby effectively separating each cable 1, preventing them from tangling together and ensuring the uniform transmission of force flow. The rotating ring 5 constitutes a dynamic stress adjustment mechanism. The design of its rotating pair allows it to undergo a small angular displacement when under force, providing a structural basis for subsequent possible tightening actions. The presence of the protrusion 51 not only serves as an isolation function, but also acts as a medium for force transmission, directly applying the possible torsional torque to the single cable 1.

[0039] The anchor head 2 also includes a straight rod 6, the lower end of which abuts against the spherical anchor 3, and the upper end of which is located in the arc-shaped groove 52 of the swivel ring 5, so that the axial movement of the straight rod 6 can drive the swivel ring 5 to rotate.

[0040] To achieve automatic tightening during the stress process of the anchor head 2, this application provides a straight rod 6, which is arranged along the axial direction of the cylinder 21. The lower end of the straight rod 6 directly contacts and abuts against the top of the spherical anchor 3, so that the axial displacement of the spherical anchor 3 can directly drive the straight rod 6 to produce synchronous axial movement. At the upper end of the straight rod 6, there is a radially protruding driving part 61, which is preferably a cylindrical pin or a ball head structure. Correspondingly, an arc-shaped inclined groove 52 that cooperates with the driving part 61 is machined inside the rotating ring 5. This arc-shaped inclined groove 52 is not parallel to the axis of the rotating ring 5, but has a certain inclination angle and arc trajectory. During assembly, the drive unit 61 at the upper end of the straight rod 6 is embedded into the arc-shaped inclined groove 52 of the swivel ring 5. When the anchor head 2 is pushed upward by the spherical anchor 3, causing the straight rod 6 to move axially, the drive unit 61 will slide within the arc-shaped inclined groove 52. Due to the arc-shaped inclined structure of the arc-shaped inclined groove 52 constraining the movement of the drive unit 61, the axial linear movement of the straight rod 6 is forcibly converted into the sliding of the drive unit 61 along the arc-shaped inclined groove 52, thereby driving the swivel ring 5 to rotate around its axis. This structure efficiently and reliably converts the pull-out force inside the anchor head 2 into a tightening torque on the cable bundle 1, achieving adaptive reinforcement of the structure.

[0041] A support structure includes support anchor cables and a wire mesh 7 laid on the soil support surface; wherein the cable 1 is inserted through the mesh holes 71 of the wire mesh 7.

[0042] The path of cable 1 is arranged along the boundary and diagonal of wire mesh 7. Anchor head 2 is set at the intersection of at least two paths of cable 1, and the intersection is located in the non-boundary area inside wire mesh 7.

[0043] Reference Figures 1-6 This support structure combines the aforementioned support anchor cables with a large-area covered wire mesh 7 to form an efficient and economical flexible support structure. Specifically, the structure includes multiple support anchor cables as described above, and a wire mesh 7 laid on the surface of the soil or rock mass to be supported. The wire mesh 7 is woven from high-strength metal wire, forming uniformly distributed mesh holes 71.

[0044] During assembly, the cables 1, as the main load-bearing components, are threaded through numerous mesh holes 71 of the wire mesh 7 along a predetermined path. As an optimized layout scheme, the paths of these cables 1 are planned to be arranged along the four boundaries of the wire mesh 7 and the diagonal lines connecting the diagonals. This arrangement makes full use of the binding effect of the boundary chains and diagonal chains, which can effectively transfer the slope load to the key anchor points.

[0045] The anchor head 2 of this invention is specifically positioned at the intersection of at least two cable paths 1, and this intersection is intentionally chosen within the non-boundary area of ​​the wire mesh 7. In other words, the anchoring point is moved from the traditional corner or edge position of the mesh to the node formed by the intersection of the boundary chain and the diagonal chain within the mesh. This layout completely avoids the material waste and construction interference caused by concentrating multiple anchor heads 2 in the space-constrained corner area, achieving uniform distribution of anchoring force and optimization of material usage. Each anchor head 2 at each internal intersection point can simultaneously tension multiple cables 1, thereby achieving more efficient and reliable constraint on the entire wire mesh 7 system with fewer anchor heads 2.

[0046] Reference Figures 1-6 The implementation process of this support structure mainly includes two stages: installation and stress-bearing work.

[0047] I. Installation and Anchoring Stage.

[0048] First, the wire mesh 7 is covered on the slope surface. Then, several iron chains or steel cables (hereinafter collectively referred to as "cables 1") that serve as cables 1 are passed through several mesh holes 71 on a pre-planned path (e.g., the four sides and two diagonals of the wire mesh 7). At the intersection of all cable 1 paths (i.e., the location where anchoring is required), the following operations are performed: the ends of the multiple cables 1 gathered there are passed through the inlet 214 at the lower end of the cylinder 21 of the anchor head 2. Using high-strength concrete or other cementing materials, the ends of the bundle of cables 1 are wrapped and solidified into a spherical anchor 3 (i.e., "sphere") much larger than the diameter of the inlet 214 of the cylinder 21. This sphere is placed inside the cylinder 21 before solidification. The cone 22 component of the anchor head 2 is screwed to the lower end of the cylinder 21 by threads to form a complete anchor head 2 assembly. At this time, the spherical anchor 3 is enclosed in the cavity 23 formed by the cone 22 and the cylinder 21. A swivel 5 is installed at the upper end of the anchor head 2 (i.e., the position where the cables 1 extend out of the cylinder 21). The inner side of the swivel 5 is provided with radial protrusions 51. These protrusions 51 can separate the multiple cables 1 from each other, prevent them from tangling and wearing each other, and provide conditions for subsequent automatic tightening. The assembled anchor head 2, the connected cable 1, and the wire mesh 7 are tensioned together, and then the anchor head 2 is buried in the pre-drilled anchor hole inside the slope.

[0049] II. Force and Self-Reinforcing Stage.

[0050] When the slope undergoes minor deformation or is subjected to external forces attempting to pull the wire mesh 7 and cable 1 outward, the self-reinforcing mechanism of this support structure will be activated in the following order: the cable 1 is subjected to outward tension, which is transmitted through the cable 1 to the spherical anchor 3 at the end, attempting to pull it out of the soil. Under the action of tension, the spherical anchor 3 moves slowly upward relative to the cylinder 21 (i.e. towards the slope) within the cavity 23 of the cylinder 21. The inner wall of the cylinder 21 is designed with an inwardly contracting conical surface 213. During the upward movement, the spherical anchor 3 compresses multiple inserts 4 arranged in a ring around the circumference of the side wall of the cylinder 21. Under the radial compression of the sphere, these inserts 4 extend outward radially and are forcefully embedded into the surrounding anchor hole wall soil like wedges. This process greatly enhances the pull-out resistance of the anchor head 2, forming the first layer of self-reinforcing effect.

[0051] Automatic Tightening and Sealing: As the spherical anchor 3 moves upward, it pushes a straight rod 6 fixed to it upward as well. The upper part of the straight rod 6 engages with the rotating ring 5 through the arc-shaped groove 52. Therefore, the upward movement of the straight rod 6 is converted into a small-angle rotational movement of the rotating ring 5. The rotation of the rotating ring 5 drives the protrusion 51 on its inner side to apply a torsional force to the multiple cables 1 passing through it, further tightening them at the inlet 214 of the anchor head 2. This action brings three beneficial effects: the multiple cables 1 are twisted into a tighter bundle, significantly improving the tensile strength and fatigue resistance of the root of the anchor head 2 (stress concentration area); the tightened bundle of cables 1 forms a denser blockage at the inlet 214 of the anchor head 2, effectively preventing mud and water from entering the interior of the cylinder 21; the unidirectional or restricted rotation characteristics of the rotating ring 5 ensure that the tightened state is maintained, avoiding the possibility of the cables 1 loosening due to vibration or other reasons.

[0052] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A support cable, characterized by: Including multiple cables (1); Anchor head (2), the anchor head (2) includes a cylinder (21) and a cone (22) connected to the lower end of the cylinder (21), the cylinder (21) and the cone (22) form a cavity (23); A spherical anchor (3) is formed by fixing the ends of multiple cables (1) together. The spherical anchor (3) is contained in the cavity (23) and its outer diameter is larger than the inlet (214) aperture through which the cables (1) pass into the cylinder (21). Insertion blocks (4), multiple insertion blocks (4) are radially movable and arranged on the side wall circumference of the cylinder (21).

2. A support cable according to claim 1, characterised in that: The side wall of the cylinder (21) is provided with mounting holes (211) matching the number of the inserts (4), and the inserts (4) are slidably disposed in the mounting holes (211).

3. The support anchor cable according to claim 2, characterized in that: Two parallel straight slots (41) are provided on the insert (4), and two fixing rods (212) are provided in the mounting hole (211), with each fixing rod (212) corresponding to one straight slot (41).

4. The support anchor cable according to claim 2, characterized in that: The inner wall of the cylinder (21) has an inwardly tapered surface (213), and the inlet (214) of the cylinder (21) is the minimum diameter of the tapered surface (213).

5. The support anchor cable according to claim 2, characterized in that: The upper end of the anchor head (2) is provided with a swivel (5), which is rotatably fitted on the outside of the cable (1), and its inner side is provided with a protrusion (51) for separating each cable (1).

6. The support anchor cable according to claim 5, characterized in that: The anchor head (2) also includes a straight rod (6), the lower end of which abuts against the spherical anchor (3), and the upper end of which is located in the arc-shaped groove (52) of the swivel (5), so that the axial movement of the straight rod (6) can drive the swivel (5) to rotate.

7. The support anchor cable according to claim 1, characterized in that: The spherical anchor (3) is a high-strength concrete casting.

8. A support structure, characterized in that: The support anchor cable according to any one of claims 1-7 is included, and the wire mesh (7) laid on the soil support surface is also included; wherein the cable (1) is inserted through the mesh hole (71) of the wire mesh (7).

9. The support structure according to claim 8, characterized in that: The path of the cable (1) is arranged along the boundary and diagonal of the wire mesh (7).

10. The support structure according to claim 8, characterized in that: The anchor head (2) is located at the intersection of at least two paths of the cable (1), and the intersection is located in the non-boundary area inside the wire mesh (7).

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