Steel wire rope inhaul cable traction device, steel wire rope inhaul cable and construction method

Abstract

The invention relates to a steel wire rope inhaul cable traction device, a steel wire rope inhaul cable and a construction method. The invention relates to the technical field of anchor cable supporting construction. The method comprises the following steps: cutting a steel wire at an original damaged part, cutting and weaving the steel wire rope according to a required length, sleeving the steel wire rope into a steel wire rope lantern ring, cutting redundant steel wires, sleeving an extrusion head, enabling the woven and extruded steel wire rope to penetrate through a through hole in a connector, and then mounting the extrusion head in a clamping groove of the connector. The connecting structure is stable, anchoring and tensioning integration of the steel wire rope inhaul cable is achieved, the cost is low, and the problems that locking force is adjusted in the later period, and steel wires are inconvenient to replace are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of anchor cable support construction, and particularly relates to a steel wire rope cable traction device, a steel wire rope cable and a construction method. BACKGROUND

[0002] Anchor cables (steel wire rope cables) are widely used in water conservancy projects such as slope reinforcement and bridge reinforcement. Anchor cables connect structures and stable rock masses to provide prestress to enhance the stability and safety of structures. However, in actual engineering, anchor cables often need to be lengthened due to construction condition limitations, insufficient anchor cable length, or the need for supplementary tensioning.

[0003] The existing steel wire rope cable lengthening technology has the following problems: 1. Traditional steel wire rope anchoring often uses hot cast anchors or cold cast anchors + nuts or fork ear connections, which have complex structures and high costs.

[0004] 2. The steel wire rope has a large relaxation rate and will lengthen after a long period of use, resulting in a decrease in cable force and making it difficult to supplement the cable force in the later period.

[0005] 3. The existing technology affects safety performance after single or multiple steel wire rope cables are damaged locally or at multiple locations, and the damaged cables cannot be repaired and can only be replaced.

[0006] Therefore, a steel wire rope cable traction device, a steel wire rope cable and a construction method are provided to solve the above problems. SUMMARY

[0007] The purpose of the present application is to provide a steel wire rope cable traction device, a steel wire rope cable and a construction method that are simple in structure and reasonable in design to solve the above problems.

[0008] The present application achieves the above-mentioned purposes through the following technical solutions: A steel wire rope cable construction method, comprising the following steps: First step: After cutting the original damaged part of the steel wire, cut and weave the steel wire rope according to the required length and put the steel wire rope into the steel wire rope sleeve ring; Second step: Cut the excess steel wire and put it into the extrusion head; Third step: Thread the woven and extruded steel wire rope through the through hole on the connector, and then install the extrusion head into the clamping groove of the connector. After extrusion, the end face of the steel wire rope exceeds the end face of the extrusion head by at least 20 mm; Fourth step: Cut and weave a new steel wire rope and a steel wire rope sleeve ring from another steel wire rope; Fifth step, repeat the above steps, then extrude the extrusion head at the other end of the steel wire rope, and complete the installation.

[0009] This invention also discloses a steel wire rope cable, which uses a steel wire rope cable construction method for splicing and anchoring, including: Wire rope ferrules, wire ropes, extrusion heads, anchor plates, and connectors; The connector's bidirectional anchor has multiple steel wire ropes; The extrusion head has a cylindrical structure, and extrusion rods are fixedly installed on the inner wall of the extrusion head. There are multiple extrusion rods, which are distributed at equal distances. The end of the extrusion rod is fixedly equipped with an arc-shaped rod head, which has a semi-circular structure.

[0010] As a further optimization of the present invention, the connector has through holes and slots distributed on both sides. The through holes are used to insert steel wire ropes, and the slots are used to hold the extrusion head. The through holes pass through both sides of the connector, while the slots are set at both ends of the through holes. The diameter of the slots is larger than the diameter of the through holes, and the end of the extrusion head is engaged in the corresponding slot.

[0011] As a further optimization of the present invention, the wire rope is made of multiple strands of steel wire twisted and woven together.

[0012] As a further optimization of the present invention, when the extrusion head is installed, the arc-shaped rod head is extruded along the spiral structure on the outer surface of the wire rope into the gap between adjacent wires, forming a structure that interlocks and anchors along the spiral structure on the outer surface of the wire rope.

[0013] As a further optimization of the present invention, the end of the extrusion rod near the arc-shaped rod head is also provided with a hollow section, the interior of which is hollow and filled with adhesive.

[0014] As a further optimization of the present invention, the outer periphery of the anchor plate is also provided with a slot. After the extrusion head anchors multiple steel wire ropes, the extrusion head is then engaged in the corresponding slot.

[0015] As a further optimization of the present invention, a wire rope collar is provided at the end of the wire rope away from the connector, and the wire rope collar is a ring structure.

[0016] As a further optimization of the present invention, the structure of the steel wire rope cable construction method is applied to the repair and replacement of damaged steel wire ropes, the connection of steel wire ropes of different specifications, and the synchronous anchoring and tensioning of multiple steel wire ropes.

[0017] The present invention also discloses a wire rope traction device for traction of wire ropes, comprising: The traction mechanism is embedded in the slope. The traction mechanism includes a hollow anchor rod. The hollow anchor rod is hollow inside and has anchor holes on its outer surface. There are multiple anchor holes, which are distributed at equal intervals along the length of the hollow anchor rod. The grouting mechanism includes a grouting pipe and an outer pipe. A push plate is fixedly installed at one end of the grouting pipe, and the push plate is slidably installed inside the hollow anchor rod. The outer pipe is sleeved on the outer ring of the grouting pipe, and a limit ring is fixedly installed at the end of the outer pipe away from the push plate. A connecting plate is fixedly installed at the end of the hollow anchor rod, and a sealing plate is fixedly connected to the connecting plate by screws. A hole is provided in the middle of the sealing plate for the outer pipe to move through. Multiple grouting holes are provided on the side of the push plate near the sealing plate. The grouting holes are connected to the inside of the grouting pipe and a one-way valve is installed in the grouting holes. An air pipe is connected to the end of the hollow anchor rod away from the sealing plate and extends from the slope surface along the outer surface of the hollow anchor rod. The wire rope loop is connected to the side of the grouting pipe.

[0018] The beneficial effects of this invention are as follows: the connection structure of this invention is stable, realizes the integrated anchoring and tensioning of steel wire rope cables, has low cost, and solves the problems of adjusting the locking force and inconvenience in replacing steel wires in the later stage.

[0019] Multiple extrusion rods on the inner wall of the extrusion head engage with adjacent steel wires in groups of four, forming a stable anchoring structure. Due to the adaptability of the semi-circular structure at the end of the arc-shaped rod head, the arc-shaped rod head will press against the gap between adjacent steel wires along the spiral structure on the outer surface of the steel wire rope, forming a spiral structure that interlocks and anchors along the outer surface of the steel wire rope, making the anchoring structure more stable. At the same time, it is fixed from both radial and axial directions, making it less prone to falling off or shifting. The extrusion rods in this invention have a simple structure and do not need to be deliberately distributed along the spiral trajectory of the outer surface of the wire rope. As long as there are enough of them, the relative anchoring and locking of the wire rope and the extrusion head can be achieved by the ability of the arc-shaped rod head to automatically bend and slide along the spiral trajectory when the extrusion head is installed. When the extrusion head is fully extruded, the hollow section is pressed to the limit by the arc-shaped rod head and breaks, which allows the adhesive inside the hollow section to fill the gaps between multiple steel wires well, so that the broken steel wires can be reconnected into a whole. A wire rope collar is also provided at the end of the wire rope away from the connector. The wire rope collar is a ring structure, which facilitates quick connection of the traction rope or tensioning equipment, making construction efficient. Moreover, this structure can be used to adjust the cable tension at any time later. Based on the configuration of hollow anchor rods, grouting pipes, and external pipes, this invention enables secondary traction and tensioning of wire rope loops and wire ropes, and secondary anchoring of hollow anchor rods. When concrete grout enters the slope, it compresses the air in the slope and enters the hollow anchor through the corresponding anchor hole. Then, it is discharged along the air pipe, which avoids the problem of voids when anchoring the slope. Moreover, the secondary anchoring can better fill the voids that were not filled in the first time, resulting in high anchoring strength. It is especially suitable for geology with high water and sand content. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the wire rope ferrule and wire rope structure of the present invention; Figure 2 This is the invention Figure 1 Cross-sectional view at point AA; Figure 3 This is a schematic diagram of the anchor plate structure of the present invention; Figure 4 This is a schematic diagram of the connector structure of the present invention; Figure 5 This is a schematic diagram of the structure of the steel wire rope connecting the extrusion head and the connector of the present invention; Figure 6 This is a schematic diagram of the structure of the wire rope connection extrusion head of the present invention; Figure 7 This is a schematic diagram of the extrusion head structure of the present invention; Figure 8 This is a side view of the extrusion head of the present invention; Figure 9 This is the invention Figure 7 Enlarged schematic diagram of the structure at point A in the middle; Figure 10 This is a cross-sectional view of the extrusion head and the wire rope of the present invention when they are clamped together; Figure 11 This is a schematic diagram of the wire rope structure of the present invention; Figure 12 This is a schematic diagram of the steel wire rope traction device of the present invention; Figure 13 This is a schematic diagram of the internal structure of the wire rope traction device of the present invention.

[0021] In the diagram: 1. Wire rope collar; 2. Wire rope; 3. Extrusion head; 4. Anchor plate; 5. Connector; 31. Extrusion rod; 311. Arc-shaped rod head; 312. Hollow section; 6. Slope; 7. Traction mechanism; 8. Grouting mechanism; 9. Air pipe; 10. Hollow anchor rod; 11. Anchor hole; 12. Connecting plate; 13. Sealing plate; 14. Grouting pipe; 15. External pipe; 16. Limiting ring; 17. Push plate; 18. Grouting hole; 19. One-way valve. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] like Figures 1 to 11As shown, the wire rope cable construction method can achieve integrated anchoring and tensioning of wire rope cables, and is particularly suitable for water conservancy projects such as slope reinforcement and bridge reinforcement.

[0024] refer to Figure 1 The diagram shown is a schematic of the wire rope cable structure of the present invention, including a wire rope collar 1, which is a ring structure that facilitates quick connection of the traction rope or tensioning equipment, resulting in efficient construction. Furthermore, this structure can be used to adjust the cable tension at any time in the later stages. Wire rope 2 is made of multiple strands of steel wire twisted and woven together. It has high strength and good flexibility. The diameter and length of wire rope 2 are selected according to the actual engineering requirements. The extrusion head 3 is a cylindrical structure with multiple extrusion rods 31 fixedly installed on its inner wall. The extrusion rods 31 are engaged in groups of four between adjacent steel wires. The ends of the extrusion rods 31 are fixedly provided with arc-shaped rod heads 311, which are semi-circular structures. They can be extruded along the spiral structure of the outer surface of the steel wire rope 2 into the gaps between adjacent steel wires to form a spiral interlocking anchoring structure. The extrusion rods 31 have the ability to plastically deform. When the extrusion head 3 is fitted onto the outer ring of the steel wire rope 2, a compressive force is applied to the outer ring of the extrusion head 3, which allows the extrusion rods 31 to adaptably deform and engage in the gaps between adjacent steel wires. The extrusion rods 31 are square rod structures. After plastic deformation, the extrusion rods 31 compress against each other, resulting in high strength and a large coefficient of friction, which enables the extrusion head 3 to stably interlock the steel wire rope 2.

[0025] Anchor plate 4 has a groove on its outer periphery for engaging the compression head 3 to complete the extension of wire rope 2.

[0026] Connector 5 is a bidirectional anchor with multiple steel wire ropes 2. Both sides of connector 5 have through holes and slots. The through holes are used to insert the steel wire ropes 2, and the slots are used to hold the compression head 3. The through holes pass through both sides of connector 5, while the slots are set at both ends of the through holes. The diameter of the slots is larger than the diameter of the through holes. The end of the compression head 3 is engaged in the corresponding slot, which can simultaneously complete the tensioning connection of multiple steel wire ropes 2.

[0027] refer to Figure 11 As shown, the steel wire rope 2 is made of multiple strands of steel wire twisted and woven together.

[0028] refer to Figure 7 As shown, multiple extrusion rods 31 are distributed at equal intervals. Taking a steel wire rope 2 composed of three steel wires as an example, there are twelve extrusion rods 31 distributed on the inner wall of the extrusion head 3. The diameter of the extrusion head 3 is larger than the diameter of the steel wire rope 2. When a single steel wire or multiple steel wires in the steel wire rope 2 are damaged, the steel wire at the damaged position can be cut off, and then a new steel wire can be prepared to be woven into the steel wire rope 2. The steel wire connection is anchored using the extrusion head 3.

[0029] When anchoring the compression head 3, the compression head 3 is first placed on the outside of the wire rope 2. Then, using existing wire rope compression equipment, the compression is performed by rotating the compression head 3 to ensure that the compression head 3 completely covers the wire rope 2. The multiple compression rods 31 on the inner wall of the compression head 3 are engaged in groups of four between adjacent wires to form a stable anchoring structure.

[0030] refer to Figures 8 to 11 As shown, since the wire rope 2 has a spiral structure, a small number of extrusion rods 31 on the inner wall of the extrusion head 3 are insufficient to meet the requirements of adapting to the spiral structure on the outer surface of the wire rope 2. Therefore, in this invention, twelve extrusion rods 31 are provided, and the ends of the extrusion rods 31 are fixedly provided with arc-shaped rod heads 311. The arc-shaped rod heads 311 have a semi-circular structure. When the extrusion head 3 is installed, the arc-shaped rod heads 311 first contact the outer surface of the wire rope 2. Due to the adaptability of the semi-circular structure at the end of the arc-shaped rod heads 311, the arc-shaped rod heads 311 will press along the spiral structure on the outer surface of the wire rope 2 into the gaps between adjacent wires, forming a spiral structure that interlocks and anchors along the outer surface of the wire rope 2. This makes the anchoring structure more stable and fixes it radially and axially, making it less prone to falling off or shifting.

[0031] In this invention, the structure of the extrusion rod 31 is simple. It does not need to be deliberately distributed along the spiral trajectory of the outer surface of the wire rope 2. As long as there are enough of them, the relative anchoring and locking of the wire rope 2 and the extrusion head 3 can be achieved by the ability of the arc-shaped rod head 311 to automatically bend and slide along the spiral trajectory when the extrusion head 3 is installed.

[0032] Furthermore, a hollow section 312 is provided at one end of the extrusion rod 31 near the arc-shaped rod head 311. The hollow section 312 is hollow inside and can be filled with adhesive by injection or pre-fabrication. When the extrusion head 3 is fully extruded, the hollow section 312 is compressed to the limit by the arc-shaped rod head 311 and breaks. This allows the adhesive inside the hollow section 312 to fill the gaps between the multiple steel wires well, so that the broken steel wires can be reconnected as a whole. After the hollow section 312 is extruded and breaks, it is usually an explosive small opening. As the hollow section 312 and the arc-shaped rod head 311 continue to be extruded, the overall structure is compact and the connection strength can be guaranteed.

[0033] The outer periphery of the anchor plate 4 is also provided with a slot. After the extrusion head 3 anchors multiple steel wire ropes 2, the extrusion head 3 can be engaged in the corresponding slot to complete the extension of the steel wire ropes 2. Then, the extrusion head 3 is engaged in the corresponding slot to complete the anchoring of the extrusion head 3 and the anchor plate 4.

[0034] It should be noted that the wire rope loop 1 is located at the end of the wire rope 2 away from the connector 5. The wire rope loop 1 is a ring structure, which facilitates quick connection of the traction rope or tensioning equipment, making construction efficient. Moreover, this structure can be used to adjust the cable tension at any time in the later stage.

[0035] The steel wire rope cable construction method in this invention is as follows: Step 1: Cutting and braiding steel wire rope Cut the damaged section of the wire rope: Use a professional wire rope cutting tool to cut off the damaged section of the wire rope 2.

[0036] Braiding a new steel wire rope: Select steel wire of appropriate specifications according to the required length, and braid the new steel wire into a steel wire rope 2 according to the steel wire rope braiding process.

[0037] Step 2: Insert the extrusion head Trim excess wire: Trim excess wire as needed to ensure that the length of wire rope 2 meets the design requirements.

[0038] After weaving, the wire rope sling 1 is put into one end of the wire rope 2. The wire rope sling 1 and the wire rope 2 are connected by the extrusion head 3. The extrusion head 3 is rotated and extruded in turn to ensure that the extrusion head 3 completely covers the wire rope sling 1 and the wire rope 2, and to ensure that the wire rope sling 1 and the wire rope 2 are firmly connected. A compression head 3 is also fitted on the other end of the wire rope sling 1, and is compressed and fixed in the same way.

[0039] Step 3: Insert the wire rope 2 into the connector: Pass the wire rope 2 inserted into the compression head 3 through the through hole on the connector 5, ensuring that the wire rope 2 moves smoothly and unobstructed in the through hole.

[0040] Extrusion anchoring: Using existing extrusion equipment, the extrusion head 3 is extruded by a successive rotational extrusion method.

[0041] During extrusion, the extrusion rod 31 inside the extrusion head 3 gradually contracts inward, and the arc-shaped rod head 311 is extruded along the spiral structure on the outer surface of the wire rope 2 into the gap between adjacent wires, forming a spiral interlocking anchoring structure.

[0042] After extrusion, the end face of the wire rope 2 should extend at least 20mm beyond the end face of the extrusion head 3.

[0043] Check the anchoring effect: After extrusion, check the anchoring effect between the wire rope 2 and the extrusion head 3 to ensure that the anchoring structure is stable and there is no loosening. Step 4: Repeat the operation Prepare another wire rope: Cut the other wire rope 2 and braid a new wire rope 2 and wire rope sling 1.

[0044] Repeat the above steps: insert one end of the newly braided wire rope 2 into another extrusion head 3, and perform the piercing and extrusion anchoring operations as described above.

[0045] Installation complete: Repeat the above steps to complete the splicing and anchoring of all wire ropes 2, ensuring that the anchoring structure of each wire rope 2 is stable and reliable. Step 5: Overall connection and adjustment Connecting the anchor plate: The compression head 3 of the anchored wire rope 2 is engaged in the slot of the anchor plate 4 to complete the extension and overall anchoring of the wire rope 2.

[0046] Adjusting cable tension: Using the wire rope loop 1, tension the wire rope 2 through the traction rope or tensioning equipment to adjust the cable tension and ensure that the prestress of the cable meets the design requirements.

[0047] Inspect the construction quality: After the construction is completed, inspect the entire cable system to ensure that all connections are firm and reliable, the cable tension is evenly distributed, and there are no loose or abnormal phenomena.

[0048] Connector 5 is used to press and anchor the corresponding extrusion head 3 into connector 5.

[0049] It should also be noted that the anchor plate 4 and connector 5 can connect to the wire rope 2, which is not limited to the number of holes shown in the present invention; the connector 5 can also be connected by connecting sleeves, cold casting and hot casting anchors, etc.; the extrusion head 3 can also be anchored by cold casting, hot casting, wedges and other anchoring methods.

[0050] Example 2: Repair and Replacement of Damaged Wire Rope Damage detection: Using professional testing equipment, damage detection is performed on wire rope 2 to determine the location and extent of damage.

[0051] Cut the damaged area: Use a wire rope cutting tool to cut the wire rope 2 on both sides of the damaged area, ensuring that the cut surface is flat.

[0052] Prepare new steel wire: Based on the specifications and damaged length of steel wire rope 2, prepare new steel wire of the appropriate length, and braid the new steel wire into steel wire rope 2 according to the braiding process.

[0053] Connecting the old and new wire ropes: Insert one end of the newly woven wire rope 2 into the extrusion head 3, and connect the other end to the cut end of the original wire rope 2, ensuring that the joint fits tightly.

[0054] Compression Anchoring: The compression head 3 is compressed using a compression device to firmly connect the old and new steel wire ropes 2 through the compression head 3. After compression, the anchoring effect of the connection is checked to ensure that the connection is firm and reliable.

[0055] Overall adjustment: After the repair and replacement of wire rope 2 is completed, the cable is tensioned as a whole using wire rope collar 1 to adjust the cable force and ensure that the prestress of the cable meets the design requirements.

[0056] Example 3: Connection of steel wire ropes of different specifications Select appropriate compression heads and connectors: Based on the diameter and specifications of the wire rope 2, select compression heads 3 and connectors 5 of appropriate sizes. The inner diameter of the compression head 3 should be slightly larger than the outer diameter of the wire rope 2 to ensure that the wire rope 2 can be smoothly inserted into the compression head 3.

[0057] Adjusting the number and distribution of the extrusion rods: For wire ropes 2 of different specifications, adjust the number and distribution of the extrusion rods 31 on the inner wall of the extrusion head 3 according to the structure and spiral characteristics of the wire rope; for example, for thicker wire ropes 2, the number of extrusion rods 31 can be increased to improve the stability of the anchorage.

[0058] Construction operation: Follow the construction steps of Example 1 above to complete the splicing and anchoring of steel wire ropes 2 of different specifications; during the extrusion process, pay attention to adjusting the parameters of the extrusion equipment according to the specifications of the steel wire rope 2 to ensure that the extrusion head 3 can firmly anchor the steel wire rope 2.

[0059] Inspection and Adjustment: After construction is completed, the connection parts are inspected to ensure that the anchoring structure is stable and there is no loosening; for the cable system after connecting steel wire ropes of different specifications, the overall tension and cable force are adjusted to ensure that the prestress distribution of the cable is uniform and meets the project requirements.

[0060] Example 4: Synchronous Anchoring and Tensioning of Multiple Steel Wire Ropes Preparation of multiple wire ropes: According to the project requirements, prepare multiple wire ropes 2 of the same specification, and make wire rope loops 1 for each.

[0061] Synchronous anchoring: Insert multiple steel wire ropes 2 into multiple extrusion heads 3 respectively, and perform perforation and extrusion anchoring operations according to the construction steps of Example 1 above; during the extrusion process, ensure that the anchoring structure of each steel wire rope 2 is stable and reliable, and that the end face of each steel wire rope 2 exceeds the end face of the extrusion head 3 by at least 20mm.

[0062] Connection and synchronous tensioning: The compression heads 3 of the multiple anchored wire ropes 2 are respectively engaged in the slots of the connector 5 to complete the synchronous anchoring of the multiple wire ropes 2; using the traction rope or tensioning equipment, the multiple wire ropes 2 are synchronously tensioned through the wire rope collar 1, and the cable tension is adjusted to ensure that each wire is evenly stressed, avoiding uneven structural stress caused by uneven tension.

[0063] Data Recording: During the tensioning process, record the tension and elongation data for each wire rope for subsequent analysis and adjustment. If any abnormality is found in the tension or elongation of a wire rope, tensioning should be stopped, the cause investigated, and adjustments made.

[0064] Cable tension adjustment: After the initial tensioning is completed, the cable tension of each wire rope is finely adjusted according to the design requirements; the actual cable tension of each wire rope is measured using a cable tension sensor or tension gauge to ensure that it meets the design value; if the cable tension of a certain wire rope does not meet the requirements, it can be adjusted by fine-tuning the tensioning equipment.

[0065] Locking device: After the cable tension is adjusted, use a locking device to lock the tension of each wire rope; the locking device can be a special anchor or a lock nut to ensure that the wire rope will not loosen due to vibration or other external forces during subsequent use.

[0066] Double check: After locking, double check the tension and anchorage of each wire rope to ensure that the tension of all wire ropes is uniform and the anchorage is secure.

[0067] Example 5: Another connection method of this invention: An extrusion head 3 is set at the connection between the wire rope sling 1 and the wire rope 2, and an extrusion head 3 is also set at the other end of the wire rope 2 away from the wire rope sling 1.

[0068] The first step is to install a compression head 3 at the connection between the wire rope sling 1 and the wire rope 2, and to compress the compression head 3 by rotating it sequentially. The second step is to pass the other end of the wire rope 2 (the end without the extrusion head 3) through the through hole on the connector 5, and then set the other end of the wire rope 2 through the through hole with a second extrusion head 3. At this time, the extrusion head 3 is extruded by rotating and extruding successively. After the extrusion is completed, the end face of the "other end of the wire rope 2" extends at least 20mm beyond the end face of the extrusion head 3. In this way, both ends of the wire rope 2 have extrusion heads 3.

[0069] When it is necessary to extend the steel wire rope 2, a steel wire rope 2 with extrusion heads 3 at both ends is prepared, which is called the second steel wire rope (the second steel wire rope does not have a connector 5). The extrusion head 3 of the second steel wire rope away from the steel wire rope collar 1 is inserted into the hole around the connector 5 on the first steel wire rope to complete the connection of the two steel wire ropes 2.

[0070] It should be noted that, Figure 4 The hole in the middle of connector 5 is for the first steel wire rope to pass through. Figure 4 The holes around the middle connector 5 are slots for inserting the compression head 3 on the second wire rope.

[0071] Additionally, it should be noted that there is an anchoring plate step before and after the step of "inserting the compression head 3 at the end of the second wire rope away from the wire rope collar 1 into the hole around the connector 5 on the first wire rope to complete the connection of the two wire ropes": Previously, this included: anchoring the compression head 3 on the first wire rope near the wire rope loop 1 with an anchor plate 4; Then, the following steps are taken: anchoring the compression head 3 on the second wire rope near the wire rope loop 1 with an anchoring plate 4. In addition, there can be multiple first wire ropes and multiple second wire ropes. For example, if there are 4 first wire ropes and 4 second wire ropes, then the anchor plate 4 will use 4 slots and the connector 5 will use 8 holes.

[0072] In addition, the extrusion process of the extrusion head 3 is completed outside the construction site. Because the extrusion equipment is very large and inconvenient to carry to the site, in actual operation, the first steel wire rope with the connector 5 threaded through it and the second steel wire rope with the extrusion head 3 already extruded at both ends are carried to the construction site and the subsequent processes are continued.

[0073] Example 6: Reference Figures 12 to 13 As shown, a wire rope traction device includes a traction mechanism 7 and a grouting mechanism 8. The traction mechanism 7 is pre-embedded in the slope 6. The traction mechanism 7 includes a hollow anchor rod 10. The hollow anchor rod 10 is hollow inside, and the outer surface of the hollow anchor rod 10 is provided with anchor holes 11. Multiple anchor holes 11 are provided. The multiple anchor holes 11 are distributed at equal intervals along the length direction of the hollow anchor rod 10. The anchor holes 11 are connected to the interior of the hollow anchor rod 10.

[0074] The grouting mechanism 8 includes a grouting pipe 14 and an outer pipe 15. A push plate 17 is fixedly installed at one end of the grouting pipe 14. The push plate 17 is slidably installed inside the hollow anchor rod 10. The outer pipe 15 is sleeved on the outer ring of the grouting pipe 14. A limit ring 16 is fixedly installed at the end of the outer pipe 15 away from the push plate 17. A connecting plate 12 is fixedly installed at the end of the hollow anchor rod 10. A sealing plate 13 is fixedly connected to the connecting plate 12 by screws. A hole is provided in the middle of the sealing plate 13 for the outer pipe 15 to move through. Multiple grouting holes 18 are provided on the side of the push plate 17 near the sealing plate 13. The grouting holes 18 are connected to the inside of the grouting pipe 14. A one-way valve 19 is provided in the grouting hole 18. An air pipe 9 is connected to the end of the hollow anchor rod 10 away from the sealing plate 13. The air pipe 9 extends from the slope surface of the slope 6 along the outer surface of the hollow anchor rod 10.

[0075] A hook is fixedly installed on the side of the grouting pipe 14, and the wire rope collar 1 can be connected to the hook. When the wire rope collar 1 is initially pulled, a grouting device can be connected to the end of the grouting pipe 14. The grouting device delivers concrete slurry through the grouting pipe 14 and the grouting hole 18 to the inside of the hollow anchor rod 10, thereby moving the push plate 17 away from the sealing plate 13, realizing the traction and tension of the wire rope collar 1. When the traction reaches a certain degree, the grouting stops, and the anchoring is completed.

[0076] It should be noted that during the initial grouting, grouting is usually stopped when the limiting ring 16 comes into contact with the surface of the sealing plate 13.

[0077] With the use of wire rope collar 1 and wire rope 2, there are two situations where it is necessary to re-tension wire rope 2 and wire rope collar 1: In the first method, when the steel wire rope 2 breaks, the steel wire rope 2 is extended and then the grouting equipment is reconnected to the end of the grouting pipe 14 to continue injecting concrete grout into the hollow anchor rod 10. During the initial grouting, a release agent is applied to the side of the push plate 17 near the sealing plate 13. During the second grouting, the grout continues to push the push plate 17 to move. Since the outer pipe 15 is anchored in the hollow anchor rod 10 and cannot move, the push plate 17 can only move the grouting pipe 14 into the hollow anchor rod 10. The grouting pipe 14 is separated from the outer pipe 15. After the second anchoring, the steel wire rope collar 1 and the steel wire rope 2 can be further pulled and tightened.

[0078] The second method is to continue grouting into the hollow anchor rod 10 in the same way when the wire rope collar 1 and the wire rope 2 become loose to a certain extent, so as to achieve secondary anchoring. At the same time as secondary anchoring, not only is the anchoring force between the hollow anchor rod 10 and the slope 6 increased, but the wire rope collar 1 and the wire rope 2 can also be tensioned and fixed for a second time.

[0079] Based on the arrangement of hollow anchor rod 10, grouting pipe 14 and outer pipe 15, this invention can realize secondary traction tensioning of wire rope collar 1 and wire rope 2, and can also realize secondary anchoring of hollow anchor rod 10. Based on this principle, multiple nested outer pipes 15 are provided outside the grouting pipe 14 to realize more traction tensioning, which will not be elaborated here.

[0080] When the hollow anchor rod 10 is anchored for the second time, the push plate 17 moves and exposes the corresponding anchor hole 11. The concrete grout can be discharged from the corresponding anchor hole 11 and fill the slope 6 to form a tree-like anchoring structure. When the push plate 17 moves into the hollow anchor rod 10, the air in the hollow anchor rod 10 can be discharged through the air pipe 9. The concrete grout entering the slope 6 will squeeze the air in the slope 6 into the hollow anchor rod 10 from the corresponding anchor hole 11 and then be discharged along the air pipe 9. This avoids the problem of voids when anchoring the slope 6. The second anchoring can better fill the voids that were not filled in the first time. The anchoring strength is high and it is especially suitable for geology with high water and sand content.

[0081] It should be noted that the one-way valve 19 is used to prevent grout backflow. After the initial anchoring, the concrete grout in the grouting pipe 14 needs to be extracted to facilitate secondary anchoring and continued use. The concrete grout will not remain in the grouting pipe 14 and solidify, thus preventing secondary anchoring. When gas enters the air pipe 9, it will expand the air pipe 9, thereby allowing the gas to be discharged. After the gas is discharged, the air pipe 9 will be flattened by the stress inside the slope 6, which will not affect the overall strength. Moreover, the air pipe 9 is easy to install and can be made of plastic pipe, which is low in cost and does not require recycling.

[0082] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A method for constructing steel wire rope cables, characterized in that: Includes the following steps: Step 1: After cutting the damaged part of the steel wire, cut it to the required length and braid the steel wire rope and put it into the steel wire rope loop; Step 2: Trim excess wire and insert it into the extrusion head; Step 3: Pass the braided and extruded steel wire rope through the through hole on the connector, and then install the extrusion head into the slot of the connector. After extrusion, the end face of the steel wire rope should extend at least 20mm beyond the end face of the extrusion head. Step 4: Cut the other wire rope and braid a new wire rope and wire rope sling; Fifth, repeat the above steps, then squeeze the squeezing head at the other end of the wire rope to complete the installation.

2. A steel wire rope cable, characterized in that: The method for extending and anchoring steel wire rope cables according to claim 1 includes: Wire rope ferrules, wire ropes, extrusion heads, anchor plates, and connectors; The connector's bidirectional anchor has multiple steel wire ropes; The extrusion head has a cylindrical structure, and extrusion rods are fixedly installed on the inner wall of the extrusion head. There are multiple extrusion rods, and the multiple extrusion rods are distributed at equal distances. The end of the extrusion rod is fixedly equipped with an arc-shaped rod head, which has a semi-circular structure.

3. A steel wire rope cable according to claim 2, characterized in that: Both sides of the connector have through holes and slots. The through holes are used to insert steel wire ropes, and the slots are used to hold the extrusion head. The through holes pass through both sides of the connector, while the slots are located at both ends of the through holes. The diameter of the slots is larger than the diameter of the through holes, and the end of the extrusion head is engaged in the corresponding slot.

4. A steel wire rope cable according to claim 2, characterized in that: The steel wire rope is made of multiple strands of steel wire twisted and woven together.

5. A steel wire rope cable according to claim 2, characterized in that: When the extrusion head is installed, the arc-shaped rod head is pressed into the gap between adjacent wires along the spiral structure on the outer surface of the wire rope, forming a structure that interlocks and anchors along the spiral structure on the outer surface of the wire rope.

6. A steel wire rope cable according to claim 2, characterized in that: The extrusion rod also has a hollow section at one end near the arc-shaped rod head. The hollow section is hollow inside and filled with adhesive.

7. A steel wire rope cable according to claim 2, characterized in that: The outer periphery of the anchor plate is also provided with a slot. After the extrusion head anchors multiple steel wire ropes, the extrusion head is then engaged in the corresponding slot.

8. A steel wire rope cable according to claim 2, characterized in that: The end of the wire rope away from the connector is also provided with a wire rope collar, which is a ring-shaped structure.

9. A steel wire rope cable according to claim 2, characterized in that: The structure of the steel wire rope cable construction method is applied to the repair and replacement of damaged steel wire ropes, the connection of steel wire ropes of different specifications, and the synchronous anchoring and tensioning of multiple steel wire ropes.

10. A wire rope traction device, characterized in that: For traction of the wire rope cable according to any one of claims 2-9, comprising: The traction mechanism is embedded in the slope. The traction mechanism includes a hollow anchor rod. The hollow anchor rod is hollow inside and has anchor holes on its outer surface. There are multiple anchor holes, which are distributed at equal intervals along the length of the hollow anchor rod. The grouting mechanism includes a grouting pipe and an outer pipe. A push plate is fixedly installed at one end of the grouting pipe, and the push plate is slidably installed inside the hollow anchor rod. The outer pipe is sleeved on the outer ring of the grouting pipe, and a limit ring is fixedly installed at the end of the outer pipe away from the push plate. A connecting plate is fixedly installed at the end of the hollow anchor rod, and a sealing plate is fixedly connected to the connecting plate by screws. A hole is provided in the middle of the sealing plate for the outer pipe to move through. Multiple grouting holes are provided on the side of the push plate near the sealing plate. The grouting holes are connected to the inside of the grouting pipe and a one-way valve is installed in the grouting holes. An air pipe is connected to the end of the hollow anchor rod away from the sealing plate and extends from the slope surface along the outer surface of the hollow anchor rod. The steel wire rope loop is connected to the side of the grouting pipe.

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