Ultrahigh soil slope negative Poisson's ratio anchor cable reinforcing and monitoring device

Abstract

The utility model provides an ultrahigh soil slope negative Poisson's ratio anchor cable reinforcing and monitoring device, and relates to the field of anchor cables. The negative Poisson's ratio anchor cable reinforcing and monitoring device comprises a mounting kit and a negative Poisson's ratio anchor cable, a tray is fixedly mounted at the rear end of the mounting kit, a sleeve is fixedly mounted at the end, away from the mounting kit, of the tray, a supporting plate is fixedly mounted at the end, away from the tray, of the sleeve, and a lock is arranged at the end, away from the sleeve, of the supporting plate; a through groove is formed in the upper surface of the sleeve, a fixing frame is arranged between the supporting plate and the tray, and a diameter monitoring mechanism is arranged at the bottom end of the fixing frame and connected to the outer surface of the negative poisson ratio anchor cable in a sleeving mode. According to the negative Poisson's ratio anchor cable reinforcing and monitoring device, the sleeve provided with the through groove is arranged at the rear end of the original mounting kit, and the diameter monitoring mechanism can be arranged in the through groove to monitor the diameter change of the negative Poisson's ratio anchor cable, so that the tension condition of the anchor cable can be monitored.

Description

Technical Field

[0001] This utility model relates to the field of anchor cable technology, specifically a device for reinforcing and monitoring ultra-high soil slopes with negative Poisson's ratio anchor cables. Background Technology

[0002] Negative Poisson's ratio (NPR) anchors are a type of anchor with special mechanical properties and have important applications in geotechnical engineering and other fields. During shear deformation at the anchoring surface, NPR anchors exhibit greater tensile strength compared to ordinary anchors. Their negative Poisson's ratio deformation effect ensures close contact with the rock mass during shear stress, effectively transferring loads, and their shear strength does not significantly change with the shear rate. Under high shear rate conditions, the effective length and uniform anchor contribution of NPR anchors are significantly superior to those of ordinary anchors.

[0003] After installation, anchor cables require continuous monitoring. In the initial stage after anchor cable construction, because the stress state of the anchor cables is not yet stable, the monitoring frequency should be increased, typically 1-2 times per day, to promptly grasp changes in the anchor cable stress. Existing anchor cable tension monitoring usually uses a vibrating wire anchor cable force gauge to measure the anchor cable tension, calculating the force acting on the anchor cable by measuring the vibration frequency of the steel wire. To accurately measure the tension of negative Poisson's ratio anchor cables, the installation position and method of the vibrating wire anchor cable force gauge need to be strictly controlled. Improper installation, such as misalignment of the force gauge with the anchor cable axis or additional stress on the force gauge during installation, will affect the accuracy of the measurement results. Therefore, a new, easily monitorable device is needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a negative Poisson's ratio anchor cable reinforcement and monitoring device for ultra-high soil slopes, which solves the problem of high installation requirements for existing monitoring devices mentioned in the background art.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a negative Poisson's ratio anchor cable reinforcement and monitoring device for ultra-high soil slopes, comprising an installation kit and a negative Poisson's ratio anchor cable. A tray is fixedly installed at the rear end of the installation kit, a sleeve is fixedly installed at the end of the tray away from the installation kit, a support plate is fixedly installed at the end of the sleeve away from the tray, a lock is provided at the end of the support plate away from the sleeve, a through groove is provided on the upper surface of the sleeve, a fixing frame is provided between the support plate and the tray, and a diameter monitoring mechanism is provided at the bottom end of the fixing frame, the diameter monitoring mechanism being sleeved on the outer surface of the negative Poisson's ratio anchor cable.

[0007] The yield strength of the mounting kit is nine-tenths of that of the negative Poisson's ratio anchor cable, and the yield strength of the sleeve is greater than that of the negative Poisson's ratio anchor cable.

[0008] Furthermore, the fixing frame includes a fixing frame, the two ends of which are respectively threaded to the support plate and the tray by bolts, and a sliding bearing plate is slidably connected to the middle of the fixing frame. The distance between the sliding bearing plate and the fixing frame and the sliding bearing plate extending into the through groove is adjusted by an adjustment mechanism.

[0009] Furthermore, the adjustment mechanism includes a threaded sleeve fixedly installed above the fixed frame. The threaded sleeve has a threaded shaft internally connected to it. The threaded shaft is rotatably connected to the sliding bearing plate. The threaded shaft and the threaded sleeve are bonded together to prevent loosening.

[0010] Furthermore, the diameter monitoring mechanism includes an energized coil sleeved on the outer surface of the negative Poisson's ratio anchor cable, and a gaussmeter for detecting changes in the magnetism of the energized coil.

[0011] Furthermore, the diameter monitoring mechanism includes a grating emitting unit, which is fixedly installed below the sliding support plate. A support frame is fixedly installed below the sliding support plate, and a grating receiving unit is fixedly installed above the support frame. A negative Poisson's ratio anchor cable is arranged between the grating emitting unit and the grating receiving unit.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The negative Poisson's ratio anchor cable reinforcement and monitoring device is designed by setting a sleeve with a through groove at the rear end of the original installation kit. This design allows a diameter monitoring mechanism to be installed in the through groove to monitor the diameter change of the negative Poisson's ratio anchor cable, thereby monitoring the tension of the anchor cable.

[0014] 2. The negative Poisson's ratio anchor cable reinforcement and monitoring device includes a diameter monitoring mechanism comprising an energized coil sleeved on the outer surface of the negative Poisson's ratio anchor cable and a gaussmeter for detecting changes in the magnetic properties of the energized coil. When the diameter of the negative Poisson's ratio anchor cable increases under tension, the iron core inside the energized coil will increase the magnetism of the energized coil. By detecting the change in magnetic properties using the gaussmeter, the diameter change of the negative Poisson's ratio anchor cable can be determined. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the installation kit connection for this utility model;

[0017] Figure 3 This is a schematic diagram of the connection of the energized coil of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection of the grating emitting unit of this utility model.

[0019] The components include: 1. Installation kit; 2. Tray; 3. Sleeve; 4. Support plate; 5. Lock; 6. Through slot; 7. Fixing frame; 8. Diameter monitoring mechanism; 9. Negative Poisson's ratio anchor cable; 701. Fixing frame; 702. Bolt; 703. Sliding bearing plate; 74. Adjustment mechanism; 741. Threaded sleeve; 742. Threaded shaft; 801. Energizing coil; 802. Gaussmeter; 803. Grating transmitting unit; 804. Support frame; 805. Grating receiving unit. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] See Figures 1-4 A device for reinforcing and monitoring negative Poisson's ratio anchor cables on ultra-high soil slopes includes an installation kit 1 and a negative Poisson's ratio anchor cable 9. A tray 2 is fixedly installed at the rear end of the installation kit 1. A sleeve 3 is fixedly installed at the end of the tray 2 away from the installation kit 1. A support plate 4 is fixedly installed at the end of the sleeve 3 away from the tray 2. A lock 5 is provided at the end of the support plate 4 away from the sleeve 3. A through groove 6 is opened on the upper surface of the sleeve 3. A fixing frame 7 is provided between the support plate 4 and the tray 2. A diameter monitoring mechanism 8 is provided at the bottom end of the fixing frame 7. The diameter monitoring mechanism 8 is sleeved on the outer surface of the negative Poisson's ratio anchor cable 9. By setting the sleeve 3 with the through groove 6 at the rear end of the original installation kit 1, the diameter monitoring mechanism 8 can be set in the through groove 6 to monitor the diameter change of the negative Poisson's ratio anchor cable 9, thereby monitoring the tension of the anchor cable.

[0022] The yield strength of the mounting kit 1 is nine-tenths of the yield strength of the negative Poisson's ratio anchor cable 9, and the yield strength of the sleeve 3 is greater than the yield strength of the negative Poisson's ratio anchor cable 9. With this arrangement, the deformation of the mounting kit 1 can compensate for the length change of the negative Poisson's ratio anchor cable 9, thereby achieving reinforcement.

[0023] The fixing frame 7 includes a fixing frame 701. The two ends of the fixing frame 701 are threadedly connected to the support plate 4 and the tray 2 by bolts 702 respectively. A sliding bearing plate 703 is slidably connected to the middle of the fixing frame 701. The distance between the sliding bearing plate 703 and the fixing frame 701 and the fixing frame 701 is adjusted by the adjusting mechanism 74. By setting the fixing frame 7, the diameter monitoring mechanism 8 can be fixed and the position of the diameter monitoring mechanism 8 can be adjusted, so as to better monitor the anchor cable.

[0024] The adjusting mechanism 74 includes a threaded sleeve 741 fixedly installed above the fixed frame 701. The threaded sleeve 741 is internally threaded with a threaded shaft 742. The threaded shaft 742 is rotatably connected to the sliding bearing plate 703. The threaded shaft 742 and the threaded sleeve 741 are bonded together to prevent loosening. In use, the position of the sliding bearing plate 703 is adjusted up and down by rotating the threaded shaft 742, thereby adjusting the position of the diameter monitoring mechanism 8 to a suitable monitoring position. Then, anti-loosening adhesive is applied between the threaded shaft 742 and the threaded sleeve 741 to prevent relative movement between the threaded shaft 742 and the threaded sleeve 741.

[0025] The diameter monitoring mechanism 8 includes an energized coil 801 sleeved on the outer surface of the negative Poisson's ratio anchor cable 9, and a gaussmeter 802 for detecting changes in the magnetism of the energized coil 801. The gaussmeter 802 has its probe fixedly mounted above the sliding bearing plate 703. When the diameter of the negative Poisson's ratio anchor cable 9 increases under tension, the iron core inside the energized coil 801 will increase the magnetism of the energized coil 801. By detecting the change in magnetism through the gaussmeter 802, the diameter change of the negative Poisson's ratio anchor cable 9 can be determined.

[0026] Example 2: The diameter monitoring mechanism 8 includes a grating emitting unit 803, which is fixedly installed below the sliding support plate 703. A support frame 804 is fixedly installed below the sliding support plate 703, and a grating receiving unit 805 is fixedly installed above the support frame 804. A negative Poisson's ratio anchor cable 9 is disposed between the grating emitting unit 803 and the grating receiving unit 805. With this arrangement, the signal emitted by the grating emitting unit 803 is blocked by the negative Poisson's ratio anchor cable 9, and the grating receiving unit 805 detects the diameter of the negative Poisson's ratio anchor cable 9.

[0027] In use, a sleeve 3 with a through groove 6 is set at the rear end of the original installation kit 1. This setting allows a diameter monitoring mechanism 8 to be set in the through groove 6 to monitor the diameter change of the negative Poisson's ratio anchor cable 9, thereby enabling the monitoring of the tension of the anchor cable.

[0028] It should be noted that in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for reinforcing and monitoring ultra-high soil slopes with negative Poisson's ratio anchor cables, comprising an installation kit (1) and negative Poisson's ratio anchor cables (9), characterized in that: The rear end of the mounting kit (1) is fixedly mounted with a tray (2), and a sleeve (3) is fixedly mounted on the end of the tray (2) away from the mounting kit (1). A support plate (4) is fixedly mounted on the end of the sleeve (3) away from the tray (2). A lock (5) is provided on the end of the support plate (4) away from the sleeve (3). A through groove (6) is provided on the upper surface of the sleeve (3). A fixing frame (7) is provided between the support plate (4) and the tray (2). A diameter monitoring mechanism (8) is provided at the bottom of the fixing frame (7). The diameter monitoring mechanism (8) is sleeved on the outer surface of the negative Poisson's ratio anchor cable (9).

2. The device for reinforcing and monitoring ultra-high soil slopes with negative Poisson's ratio anchor cables according to claim 1, characterized in that: The yield strength of the mounting kit (1) is nine-tenths of the yield strength of the negative Poisson's ratio anchor cable (9), and the yield strength of the sleeve (3) is greater than the yield strength of the negative Poisson's ratio anchor cable (9).

3. The device for reinforcing and monitoring ultra-high soil slopes with negative Poisson's ratio anchor cables according to claim 1, characterized in that: The fixing frame (7) includes a fixing frame (701). The two ends of the fixing frame (701) are threadedly connected to the support plate (4) and the tray (2) by bolts (702) respectively. A sliding bearing plate (703) is slidably connected in the middle of the fixing frame (701). The distance between the sliding bearing plate (703) and the fixing frame (701) is adjusted by the adjusting mechanism (74) so ​​that the sliding bearing plate (703) extends into the through groove (6).

4. The device for reinforcing and monitoring ultra-high soil slopes with negative Poisson's ratio anchor cables according to claim 3, characterized in that: The adjustment mechanism (74) includes a threaded sleeve (741) fixedly installed above the fixed frame (701). The threaded sleeve (741) is internally threaded with a threaded shaft (742). The threaded shaft (742) is rotatably connected to the sliding bearing plate (703). The threaded shaft (742) and the threaded sleeve (741) are bonded together to prevent loosening.

5. A negative Poisson's ratio anchor cable reinforcement and monitoring device for ultra-high soil slopes according to claim 1 or 4, characterized in that: The diameter monitoring mechanism (8) includes an energized coil (801) sleeved on the outer surface of the negative Poisson's ratio anchor cable (9), and a gaussmeter (802) for detecting changes in the magnetism of the energized coil (801).

6. A negative Poisson's ratio anchor cable reinforcement and monitoring device for ultra-high soil slopes according to claim 1 or 4, characterized in that: The diameter monitoring mechanism (8) includes a grating emitting unit (803), which is fixedly installed below the sliding support plate (703). A support frame (804) is fixedly installed below the sliding support plate (703), and a grating receiving unit (805) is fixedly installed above the support frame (804). A negative Poisson's ratio anchor cable (9) is arranged between the grating emitting unit (803) and the grating receiving unit (805).

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