Method for recovering anchor cables applied in waste earth layers

Abstract

The application relates to an anchor cable recovery method applied to a garbage soil layer, and specifically comprises the following steps: step one: the end portion of a steel strand in the anchor cable away from an anchor is clamped through a rotating device, the rotating device is opened, reverse rotating power is provided for the steel strand, a connecting rod is driven to rotate through a clamping block, at this time, a worm and the connecting rod are both moved upwards, rotating power is provided for two worm gears, so that two limiting plates and the clamping block are separated; step two: artificial tension is provided for the steel strand, the connecting rod is separated from a magnet due to the fact that a threaded rod is threadedly connected with the two limiting frames, and the steel strand is drawn out; the anchor cable structure is relatively simple, the process of installing and recovering the anchor cable is convenient, the anchor cable can be safely and reliably used in a temporary building foundation pit, the worm and the threaded rod are lubricated through lubricating oil, the resistance during reverse rotation of the steel strand in the future is reduced, a very large pulling force is avoided for pulling the steel strand, and the steel strand is not damaged.

Description

Technical Field

[0001] This invention relates to the field of anchor cable recycling technology, specifically to an anchor cable recycling method applied to landfill soil layers. Background Technology

[0002] Anchor cables are mainly composed of a load-bearing body, steel strands, and a central frame. To ensure the stability of the connection, they are generally assembled using bolts or welding. However, anchor cables assembled in this way are difficult to recover after construction. A very large pull-out force is required to pull the steel strands out of the anchor cable, which can easily cause deformation of the steel strands during the recovery process. This results in a large amount of steel strands, central frames, and other anchor cable materials being permanently buried underground, making recovery difficult and causing a certain amount of resource waste. In addition, although there are many types of recyclable anchor cables available, most of them have problems such as complex structure and unsafe recovery, and cannot be safely and reliably used in temporary construction pits. Summary of the Invention

[0003] The technical problem that this solution addresses is:

[0004] (1) How to solve the problem that there are many types of existing recyclable anchor cables, which have complex structures and cannot be safely and reliably used in temporary building foundation pits;

[0005] (2) How to solve the problem that it is difficult to recycle after construction, requiring a very large pulling force to pull the steel strand out of the anchor cable, which easily leads to damage to the steel strand.

[0006] The objective of this invention can be achieved through the following technical solution: a method for recovering anchor cables in landfill soil layers, specifically including the following steps:

[0007] Step 1: Clamp the end of the steel strand in the anchor cable away from the anchor by the rotating device, turn on the rotating device to provide reverse rotation power to the steel strand, drive the connecting rod to rotate through the locking block. At this time, the worm and the connecting rod move upward, providing rotation power to the two worm wheels, thereby driving the two limiting plates to separate from the locking block.

[0008] Step 2: Apply tension to the steel strand manually. Since the threaded rod is threadedly connected to both limit frames, the connecting rod is disengaged from the magnet. Continue to pull the steel strand manually to easily extract and recycle it for future use.

[0009] A further technical improvement of the present invention is that, in the above-mentioned anchor cable, by rotating the steel strand in the forward direction, the threaded rod drives the worm to move downward, and in conjunction with the rotation of the worm itself, it drives the two flipping plates to rotate, so that the two limiting plates limit the locking block and prevent the steel strand from separating from the anchor during construction.

[0010] A further technical improvement of the present invention is that: in the above-mentioned anchor cable, the connecting rod is magnetically attracted by a magnet to prevent the slot from disengaging from the fixing strip when the steel strand is rotated in the forward direction, thereby avoiding affecting the limiting plate's limiting of the locking block.

[0011] A further technical improvement of the present invention is that, in the above-mentioned anchor cable, the piston slides in the oil reservoir by moving the threaded rod downward, and the lubricating oil inside the piston is sprayed into the middle of the worm through two oil outlet pipes. The excess lubricating oil drips down the worm onto the threaded rod. The lubricating oil lubricates the worm and the threaded rod, which reduces the resistance when the steel strand is rotated in the reverse direction.

[0012] A further technical improvement of the present invention is that: in the above-mentioned anchor cable, the rubber plate on the flip plate is attached to the locking block to limit the flip plate and prevent the flip plate from flipping excessively, so that the end of the limiting plate is in inclined contact with the locking block, and the locking block is used to squeeze and deform the end of the limiting plate.

[0013] A further technical improvement of the present invention is that, in the above-mentioned anchor cable, by setting a plastic tube outside the steel strand, the steel strand is provided with sealed protection to avoid corrosion by the garbage soil layer and to ensure the steel strand can be recycled.

[0014] A further technical improvement of the present invention is that: the anchor cable includes an anchor and a plastic tube fixed to its top, a steel strand is provided in the cavity of the plastic tube, two tightening mechanisms for fixing the steel strand are symmetrically arranged on both sides of the bottom of the steel strand, and a transmission mechanism for driving the two tightening mechanisms is provided at the bottom of the cavity of the plastic tube.

[0015] A further technical improvement of the present invention is that: the transmission mechanism includes a worm gear, a connecting rod is fixedly installed at the top end of the worm gear, the connecting rod is made of iron, and two symmetrically arranged fixing strips are fixedly installed on the outer side wall of the connecting rod; a threaded rod is fixedly installed at the bottom end of the worm gear, and the diameters of the threaded rod and the connecting rod are both smaller than the diameter of the worm gear.

[0016] A further technical improvement of the present invention is that: a locking block is fixedly installed at the bottom end of the steel strand, and a groove for placing a connecting rod is opened at the bottom of the locking block. Slots are opened on both sides of the inner wall of the groove, and the two slots are respectively engaged with two fixing strips. A magnet that is magnetically connected to the top end of the connecting rod is fixedly installed at the bottom of the groove. When the threaded rod rotates forward, it moves downward, driving the piston to move downward and compress the lubricating oil in the oil storage cylinder. This causes the lubricating oil to be sprayed from the two oil outlet pipes to the middle of the worm, while excess lubricating oil drips down the worm onto the threaded rod. The lubricating oil lubricates the worm and the threaded rod, reducing the resistance when the steel strand rotates in the reverse direction, thus avoiding the need for a very large pulling force to pull the steel strand and causing damage.

[0017] A further technical improvement of the present invention is that: an oil storage cylinder is fixedly installed at the bottom of the inner wall of the plastic tube, the bottom end of the threaded rod movably passes through the oil storage cylinder and is fixedly connected to a piston, the piston is slidably connected to the inner wall of the oil storage cylinder, and oil outlet pipes are connected to the bottom of the outer walls on both sides of the oil storage cylinder, the output end of the oil outlet pipe faces the middle of the worm gear, and the oil storage cylinder stores a sufficient amount of lubricating oil.

[0018] A further technical improvement of the present invention is that two limiting frames are fixedly installed on the inner wall of the plastic tube, and the threaded rod is threadedly connected to both limiting frames.

[0019] A further technical improvement of the present invention is that: the fastening mechanism includes a mounting bracket fixedly connected to the inner wall of the plastic tube, and a worm wheel is rotatably provided at one end of the mounting bracket near the worm gear via a rotating shaft. The worm wheel is connected to the worm gear via a transmission. A flip plate is fixedly connected to one end of the rotating shaft, and a rubber plate that contacts the outer wall of the clamping block is fixedly provided on the flip plate.

[0020] A further technical improvement of the present invention is that: a limiting plate for limiting the locking block is fixedly installed on the top of the flipping plate, and a limiting groove for locking the steel strand is opened at the end of the limiting plate away from the flipping plate; after the steel strand is clamped by the rotating device and rotated in the forward direction, both the worm and the threaded rod rotate, and the two worm wheels also rotate accordingly, so that the two flipping plates drive the corresponding limiting plates to limit the locking block, preventing the anchor from detaching from the steel strand when installing the anchor cable. At the same time, the magnet is magnetically connected to the connecting rod to prevent the locking groove from detaching from the fixing strip, which would affect the limiting plate's limiting of the locking block. When it is necessary to pull out the steel strand, the steel strand is rotated in the reverse direction, so that the two limiting plates are disengaged from the locking block, and the steel strand can be pulled out manually. The above-mentioned anchor cable structure is relatively simple, and the process of installing and retrieving the anchor cable is convenient, and it can be safely and reliably used in temporary building foundation pits.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] In use, this invention clamps the steel strand using a rotating device and rotates it in the forward direction. The worm and threaded rod both rotate, and the two worm wheels also rotate, causing the two flipping plates to drive the corresponding limiting plates to limit the locking block. This prevents the anchor from detaching from the steel strand during anchor installation. Simultaneously, a magnet magnetically connects with the connecting rod, preventing the locking groove from detaching from the fixing strip and affecting the limiting plate's control of the locking block. When it is necessary to remove the steel strand, the strand is rotated in the reverse direction, causing the two limiting plates to disengage from the locking block. The steel strand can then be manually removed. The above-described anchor structure is relatively simple, and the installation and retrieval of the anchor are convenient, making it safe and reliable for use in temporary building foundation pits.

[0023] When the threaded rod rotates forward, it moves downward, driving the piston to move downward and compress the lubricating oil in the oil reservoir. This causes the lubricating oil to be sprayed from the two oil outlet pipes into the middle of the worm. Excess lubricating oil drips down the worm onto the threaded rod. The lubricating oil lubricates the worm and the threaded rod, reducing the resistance when the steel strand is rotated in the reverse direction. This avoids the need for a very large pulling force to pull the steel strand, which could damage it. Attached Figure Description

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the anchor cable recycling process of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the anchor cable of the present invention;

[0027] Figure 3 This is a cross-sectional view of the bottom structure of the plastic tube of the present invention;

[0028] Figure 4 For the present invention Figure 3 Enlarged view of the structure at point A in the middle;

[0029] Figure 5 This is a partial three-dimensional view of the transmission mechanism of the present invention;

[0030] Figure 6 This is a three-dimensional view of the tensioning mechanism of the present invention.

[0031] In the diagram: 1. Tap sleeve; 2. Anchor; 3. Plastic pipe; 4. Steel strand; 5. Tightening mechanism; 6. Limiting frame; 7. Oil outlet pipe; 8. Oil reservoir; 9. Transmission mechanism; 10. Worm gear; 501. Rubber plate; 502. Rotating shaft; 503. Flipping plate; 504. Limiting plate; 901. Magnet; 902. Locking block; 903. Connecting rod; 904. Worm gear; 905. Slot; 906. Fixing strip; 907. Threaded rod; 908. Piston. Detailed Implementation

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-6 As shown, the anchor cable recycling method applied to landfill soil layers specifically includes the following steps:

[0034] Step 1: Clamp the end of the steel strand 4 in the anchor cable away from the anchor 2 by the rotating device, turn on the rotating device to provide reverse rotation power to the steel strand 4, drive the connecting rod 903 to rotate through the locking block 902. At this time, the worm 904 and the connecting rod 903 both move upward, providing rotation power to the two worm wheels 10, thereby driving the two limiting plates 504 to separate from the locking block 902.

[0035] Step 2: Apply tension to the steel strand 4 manually. Since the threaded rod 907 is threadedly connected to both limit frames 6, the connecting rod 903 is disengaged from the magnet 901. Continue to pull the steel strand 4 manually to easily pull it out and recycle it for future use.

[0036] Please see Figures 1-6 As shown, in the above-mentioned anchor cable, by rotating the steel strand 4 in the forward direction, the threaded rod 907 drives the worm gear 904 to move downward. Combined with the rotation of the worm gear 904 itself, this drives the two flip plates 503 to rotate, causing the two limiting plates 504 to limit the locking block 902, preventing the steel strand 4 from detaching from the anchor 2 during construction. In the above-mentioned anchor cable, the magnet 901 provides magnetic attraction to the connecting rod 903, preventing the locking groove 905 from detaching from the fixing strip 906 when the steel strand 4 is rotated in the forward direction, thus avoiding affecting the limiting plate 504's control over the locking block 902. In the above-mentioned anchor cable, by moving the threaded rod 907 downward, the piston 908 slides within the oil reservoir 8, spraying its internal lubricating oil through the two oil outlet pipes 7. In the middle of the worm 904, excess lubricating oil drips down the worm 904 onto the threaded rod 907. The lubricating oil lubricates the worm 904 and the threaded rod 907, reducing the resistance when the steel strand 4 is rotated in the reverse direction. In the above-mentioned anchor cable, the rubber plate 501 on the flip plate 503 is in contact with the locking block 902, which limits the flip plate 503 and prevents it from over-flipping. This allows the end of the limiting plate 504 to make inclined contact with the locking block 902, preventing the locking block 902 from squeezing and deforming the end of the limiting plate 504. In the above-mentioned anchor cable, the plastic tube 3 installed on the outside of the steel strand 4 provides a sealed protection for the steel strand 4, preventing it from being corroded by the garbage soil layer and ensuring that the steel strand 4 can be reused.

[0037] Please see Figures 2-6 As shown, the above-mentioned anchor cable includes an anchor 2 and a plastic tube 3 fixed to its top. A steel strand 4 is installed inside the cavity of the plastic tube 3. Two tightening mechanisms 5 for fixing the steel strand 4 are symmetrically arranged on both sides of the bottom of the steel strand 4. A transmission mechanism 9 for driving the two tightening mechanisms 5 is installed at the bottom of the cavity of the plastic tube 3.

[0038] Please see Figures 3-5As shown, the transmission mechanism 9 includes a worm gear 904, a connecting rod 903 fixedly installed at the top of the worm gear 904, the connecting rod 903 is made of iron, and two symmetrically arranged fixing strips 906 are fixedly installed on the outer side wall of the connecting rod 903. A threaded rod 907 is fixedly installed at the bottom of the worm gear 904. The diameters of the threaded rod 907 and the connecting rod 903 are both smaller than the diameter of the worm gear 904.

[0039] Please see Figure 4 As shown, a locking block 902 is fixedly installed at the bottom of the steel strand 4. The bottom of the locking block 902 has a groove for placing the connecting rod 903. The inner walls on both sides of the groove have slots 905. The two slots 905 are respectively engaged with two fixing strips 906. A magnet 901 that is magnetically connected to the top of the connecting rod 903 is fixedly installed at the bottom of the groove. When the threaded rod 907 rotates in the forward direction, the threaded rod 907 moves downward, driving the piston 908 to move downward and squeeze the lubricating oil in the oil storage cylinder 8. This causes the lubricating oil to be sprayed from the two oil outlet pipes 7 to the middle of the worm 904. Excess lubricating oil drips down the worm 904 onto the threaded rod 907. The lubricating oil lubricates the worm 904 and the threaded rod 907, which reduces the resistance when the steel strand 4 is rotated in the reverse direction. This avoids the need for a very large pulling force to pull the steel strand 4, which could damage the steel strand 4.

[0040] Please see Figure 3 and Figure 5 As shown, an oil reservoir 8 is fixedly installed on the bottom of the inner wall of the plastic tube 3. The bottom end of the threaded rod 907 moves through the oil reservoir 8 and is fixedly connected to a piston 908. The piston 908 is slidably connected to the inner wall of the oil reservoir 8. Both sides of the bottom of the outer wall of the oil reservoir 8 are connected to an oil outlet pipe 7. The output end of the oil outlet pipe 7 faces the middle of the worm gear 904. The oil reservoir 8 stores a sufficient amount of lubricating oil.

[0041] Please see Figure 3 As shown, two limiting brackets 6 are fixedly installed on the inner wall of the plastic tube 3, and the threaded rod 907 is threadedly connected to both limiting brackets 6.

[0042] Please see Figure 3 and Figure 6 As shown, the aforementioned fastening mechanism 5 includes a mounting bracket fixedly connected to the inner wall of the plastic tube 3. A worm wheel 10 is rotatably mounted on one end of the mounting bracket near the worm 904 via a rotating shaft 502. The worm wheel 10 is connected to the worm 904 via a transmission. A flip plate 503 is fixedly connected to one end of the rotating shaft 502. A rubber plate 501 that contacts the outer wall of the locking block 902 is fixedly mounted on the flip plate 503.

[0043] Please see Figure 3 and Figure 6As shown, a limiting plate 504 for limiting the locking block 902 is fixedly installed on the top of the aforementioned flip plate 503, and a limiting groove for locking the steel strand 4 is opened at the end of the limiting plate 504 away from the flip plate 503; after the steel strand 4 is clamped by the rotating device and rotated in the forward direction, both the worm 904 and the threaded rod 907 rotate, and the two worm wheels 10 also rotate accordingly, so that the two flip plates 503 drive the corresponding limiting plates 504 to limit the locking block 902, preventing the anchor 2 from being moved during the installation of the anchor cable. In the event of detachment from the steel strand 4, the magnet 901 is magnetically connected to the connecting rod 903 to prevent the slot 905 from detaching from the fixing strip 906, thus affecting the limiting plate 504's limiting of the block 902. When it is necessary to pull out the steel strand 4, the steel strand 4 is rotated in the opposite direction to disengage the two limiting plates 504 from the block 902. The steel strand 4 can be pulled out manually. The above-mentioned anchor cable structure is relatively simple, and the process of installing and retrieving the anchor cable is convenient. It can be safely and reliably used in temporary building foundation pits.

[0044] Please see Figure 1 As shown, the outer side of the plastic tube 3 is fitted with a tap sleeve 1, and the tap sleeve 1 is fixedly connected to the top of the anchor 2.

[0045] Working Principle: In use, before installing the anchor cable, the steel strand 4 is first inserted into the plastic tube 3, aligning the groove with the connecting rod 903. The horizontal angle of the steel strand 4 is then adjusted so that the two fixing strips 906 engage with the slots 905. The steel strand 4 is then held in place by a rotating device and rotated forward. This causes the worm gear 904 and threaded rod 907 to rotate, and the two worm wheels 10 also rotate accordingly. This causes the two flipping plates 503 to drive the corresponding limiting plates 504 to limit the locking block 902, preventing the anchor 2 from detaching from the steel strand 4 during anchor cable installation. Simultaneously, the magnet 901 magnetically connects with the connecting rod 903, preventing the slots 905 from detaching from the fixing strips 906 and affecting the limiting plate 504's control over the locking block 902. When it is necessary to remove the steel strand 4… When the steel strand 4 is rotated in the reverse direction, the two limiting plates 504 disengage from the locking block 902, and the steel strand 4 can be pulled out manually. The above-mentioned anchor cable structure is relatively simple, and the process of installing and retrieving the anchor cable is convenient. It can be safely and reliably used in temporary building foundation pits. When the threaded rod 907 rotates in the forward direction, the threaded rod 907 moves downward, driving the piston 908 to move downward and squeeze the lubricating oil in the oil storage cylinder 8. This causes the lubricating oil to be sprayed from the two oil outlet pipes 7 to the middle of the worm 904, while the excess lubricating oil drips down the worm 904 onto the threaded rod 907. The lubricating oil lubricates the worm 904 and the threaded rod 907, which reduces the resistance when the steel strand 4 is rotated in the reverse direction, avoiding the need for a very large pulling force to pull the steel strand 4 and causing damage to the steel strand 4.

[0046] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A method for recovering anchor cables in landfill soil layers, characterized in that: Specifically, the following steps are included: Step 1: The anchor cable includes an anchor (2) and a plastic tube (3) fixed to its top. A steel strand (4) is installed in the cavity of the plastic tube (3). Two tightening mechanisms (5) for fixing the steel strand (4) are symmetrically arranged on both sides of the bottom of the steel strand (4). A transmission mechanism (9) for driving the two tightening mechanisms (5) is provided at the bottom of the cavity of the plastic tube (3). The transmission mechanism (9) includes a worm (904). A connecting rod (903) is fixedly installed at the top of the worm (904). The connecting rod (903) is made of iron. A clamp (902) is fixedly installed at the bottom of the steel strand (4). The tightening mechanism (5) includes a mounting bracket fixedly connected to the inner wall of the plastic tube (3). A worm wheel (10) is rotatably installed at one end of the mounting bracket near the worm (904) through a rotating shaft (502). The worm gear (10) is connected to the worm (904) for transmission. One end of the rotating shaft (502) is fixedly connected to the flip plate (503). The top of the flip plate (503) is fixedly installed with a limiting plate (504) for limiting the locking block (902). The end of the limiting plate (504) away from the flip plate (503) is provided with a limiting groove for locking the steel strand (4). The end of the steel strand (4) in the anchor cable away from the anchor (2) is clamped by the rotating device. The rotating device is turned on to provide the steel strand (4) with the reverse rotation power. The connecting rod (903) is driven to rotate through the locking block (902). At this time, the worm (904) and the connecting rod (903) both move upward, providing the two worm gears (10) with the rotation power, thereby driving the two limiting plates (504) to separate from the locking block (902). Step 2: Two symmetrically arranged fixing strips (906) are fixedly installed on the outer wall of the connecting rod (903). A threaded rod (907) is fixedly installed at the bottom of the worm (904). The diameters of the threaded rod (907) and the connecting rod (903) are both smaller than the diameter of the worm (904). The bottom of the locking block (902) is provided with a groove for placing the connecting rod (903). The inner walls on both sides of the groove are provided with slots (905). The two slots (905) are respectively engaged with the two fixing strips (906). Next, a magnet (901) is fixedly installed at the bottom of the groove and magnetically connected to the top of the connecting rod (903). Two limit frames (6) are fixedly installed on the inner wall of the plastic tube (3). The threaded rod (907) is threadedly connected to both limit frames (6). By manually applying tension to the steel strand (4), the connecting rod (903) is disengaged from the magnet (901) because the threaded rod (907) is threadedly connected to both limit frames (6). The manual continues to pull the steel strand (4) to extract and recycle it.

2. The anchor cable recycling method applied to landfill soil layers according to claim 1, characterized in that, In the above-mentioned anchor cable, by rotating the steel strand (4) in the forward direction, the threaded rod (907) drives the worm (904) to move downward. In conjunction with the rotation of the worm (904) itself, the two flip plates (503) are rotated, so that the two limiting plates (504) limit the locking block (902).

3. The anchor cable recovery method applied to landfill soil layers according to claim 1, characterized in that, In the above-mentioned anchor cable, the connecting rod (903) is magnetically attracted by the magnet (901) to prevent the slot (905) from separating from the fixing strip (906) when the steel strand (4) is rotated in the forward direction.

4. The anchor cable recycling method applied to landfill soil layers according to claim 1, characterized in that, An oil reservoir (8) is fixedly installed on the bottom of the inner wall of the plastic tube (3). The bottom end of the threaded rod (907) moves through the oil reservoir (8) and is fixedly connected to a piston (908). The piston (908) is slidably connected to the inner wall of the oil reservoir (8). The bottom of the outer walls on both sides of the oil reservoir (8) are connected to oil outlet pipes (7). The output end of the oil outlet pipe (7) faces the middle of the worm (904). The oil reservoir (8) stores a sufficient amount of lubricating oil. In the above-mentioned anchor cable, the piston (908) slides in the oil reservoir (8) by moving the threaded rod (907) downward, and sprays the lubricating oil inside the piston into the middle of the worm (904) through the two oil outlet pipes (7). The excess lubricating oil drips down the worm (904) onto the threaded rod (907), and the worm (904) and the threaded rod (907) are lubricated by the lubricating oil.

5. The anchor cable recycling method applied to landfill soil layers according to claim 1, characterized in that, A rubber plate (501) is fixedly installed on the flip plate (503) and contacts the outer wall of the locking block (902). In the above-mentioned anchor cable, the rubber plate (501) on the flip plate (503) is attached to the locking block (902) to limit the flip plate (503) and prevent the flip plate (503) from flipping excessively, so that the end of the limiting plate (504) is in inclined contact with the locking block (902).

6. The anchor cable recovery method applied to landfill soil layers according to claim 1, characterized in that, In the above-mentioned anchor cable, a plastic tube (3) is installed on the outside of the steel strand (4) to provide sealed protection for the steel strand (4).

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