An intelligent tension monitoring ground anchor device and its usage method

Abstract

The present invention discloses an intelligent tension monitoring ground anchor device and a method for using the same, belonging to the field of power grid construction engineering safety technology. The first end of the ground anchor pull rod is provided with a ground anchor interface; the force-bearing end of the tension sensor is connected to the second end of the ground anchor pull rod via a connecting rod; the first end of the fixer is slidably connected to the connecting rod, and the second end of the fixer is connected to the upper end of the housing of the tension sensor; the first end of the ground anchor is connected to the first end of the fixer via multiple support rods; the first end of the displacement sensor is rotationally connected to the second end of the ground anchor; a signal box is rotationally connected to the second end of the displacement sensor, the tension sensor and the displacement sensor are both electrically connected to the signal box, and the signal box is connected to an external monitoring device by signal. The present invention can monitor the stress state of the ground anchor buried in the soil in real time, can better detect the stress condition of the ground anchor when in use, facilitates safety detection, and is of great value in improving the intrinsic safety of power construction.

Description

Technical Field

[0001] The present invention belongs to the technical field of power grid construction engineering safety, and in particular relates to an intelligent tension monitoring ground anchor device and a method for using the same. Background Art

[0002] With the acceleration of urbanization, the stability and safety of construction projects are becoming increasingly important. While traditional ground anchors can provide a certain degree of stability, they have certain limitations. Traditional ground anchors lack monitoring capabilities. Because they are buried deep underground, the stress state of the anchor cannot be monitored in real time, which limits the assessment and early warning of anchor stability.

[0003] In recent years, significant progress has been made in the research and application of intelligent ground anchors, primarily focusing on improving monitoring accuracy, enhancing environmental adaptability, and enabling real-time remote monitoring. However, traditional intelligent devices typically rely on periodic manual inspections and single-sensor monitoring technology, which hinders the intelligentization and safety of power grid construction. Summary of the Invention

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] An intelligent tension monitoring ground anchor device, comprising:

[0006] A ground anchor rod, wherein a ground anchor interface is provided at a first end of the ground anchor rod;

[0007] a tension sensor, wherein the force-bearing end of the tension sensor is connected to the second end of the anchor rod via a connecting rod; a fixer, wherein the first end of the fixer is slidably connected to the connecting rod, and the second end of the fixer is connected to the upper end of the housing of the tension sensor;

[0008] a ground anchor, wherein a first end of the ground anchor is connected to a first end of the fixer via a plurality of support rods;

[0009] a displacement sensor, wherein a first end of the displacement sensor is rotatably connected to the second end of the ground anchor;

[0010] A signal box is rotatably connected to the second end of the displacement sensor, the tension sensor and the displacement sensor are both electrically connected to the signal box, and the signal box is connected to an external monitoring device by signal.

[0011] Furthermore, it also includes an anti-interference magnetic ring, which is arranged on the ground anchor rod or the connecting rod.

[0012] Furthermore, the ground anchor is a pull-plate type ground anchor.

[0013] Furthermore, the ground anchor is a hollow structure with an opening at the bottom.

[0014] Furthermore, a cross bar is provided inside the ground anchor, and a matching contact plate is connected to the opening; a long hole is provided on the contact plate, and the first end of the displacement sensor passes through the long hole and is rotatably connected to the cross bar.

[0015] Furthermore, it also includes a transmitting antenna, which is connected to the signal box.

[0016] Furthermore, a support frame is provided outside the signal box.

[0017] Furthermore, a battery is installed inside the signal box.

[0018] A method for using an intelligent tension monitoring ground anchor device, using any of the intelligent tension monitoring ground anchor devices described above, the method comprising the following steps:

[0019] S10. Preliminary preparations:

[0020] Ensure that the ground anchor, tension sensor, displacement sensor, signal box, battery, and antenna are intact, and that the tension sensor and displacement sensor are accurately calibrated. Conduct on-site surveys to determine the geological conditions of the anchor burial location and measure soil properties to determine the designed anchor burial depth and installation angle.

[0021] S20. Installation and connection of on-site equipment:

[0022] S30. Measurement of ground anchor force:

[0023] Connect the tension sensor and displacement sensor to the control terminal, apply simulated tension under preset conditions, verify the accuracy of the tension sensor, record the tension value in real time, analyze the data changes, and observe whether there are any abnormal fluctuations.

[0024] Furthermore, step S20 includes:

[0025] S21, ground anchor burial;

[0026] Bury the ground anchor to the designed depth, connect the second end of the ground anchor rod to the anti-interference magnetic ring, and connect it to the force-bearing end of the tension sensor through the connecting rod;

[0027] S22, tension sensor arrangement:

[0028] Fix the tension sensor at the stress point and ensure that there is no dirt on the sensor surface;

[0029] S23, signal line connection. Beneficial effects

[0030] The present invention can monitor the stress state of the ground anchor buried in the soil in real time, which solves the limitations of traditional ground anchor devices. The use of tension sensors can better detect the stress conditions of the ground anchor when in use, facilitates safety testing, and is of great value in improving the intrinsic safety of power construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle;

[0033] Figure 3 It is a schematic diagram of a partial bottom view of the present invention;

[0034] Figure 4 It is a schematic diagram of a partial enlarged view of the present invention;

[0035] Figure 5 This is a schematic structural diagram of a local tension sensor according to the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of the local fixator of the present invention;

[0037] Figure 7 It is a schematic diagram of the measurement flow chart of the present invention.

[0038] Among them, 1. Ground anchor interface; 2. Ground anchor rod; 3. Anti-interference magnetic ring; 4. Ground anchor; 5. Displacement sensor; 6. Signal box; 7. Transmitting antenna; 8. Support frame; 9. Tension sensor; 10. Connecting rod; 11. Fixer; 12. Support rod; 13. Contact plate; 14. Cross bar. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0042] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0043] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution. Example 1

[0044] refer to Figure 1-Figure 7 , an intelligent tension monitoring ground anchor device, comprising:

[0045] A ground anchor rod 2, wherein a ground anchor interface 1 is provided at a first end of the ground anchor rod 2;

[0046] Tension sensor 9, the force-bearing end of the tension sensor 9 is fixedly connected to the second end of the anchor rod 2 through a connecting rod 10, and a through slot is provided at the upper end of the housing of the tension sensor 9;

[0047] A holder 11, wherein the first end of the holder 11 is slidably connected to the connecting rod 10, and the second end of the holder 11 is connected to the upper end of the housing of the tension sensor 9. The second end of the holder is U-shaped, and the horizontal and vertical sections pass through the through slot, leaving a certain gap above and below the through slot;

[0048] A ground anchor 4, wherein a first end of the ground anchor 4 is fixedly connected to a first end of a fixer 11 via a plurality of support rods 12;

[0049] a displacement sensor 5, wherein a first end of the displacement sensor 5 is rotatably connected to a second end of the ground anchor 4;

[0050] The signal box 6 is rotatably connected to the second end of the displacement sensor 5 . The tension sensor 9 and the displacement sensor 5 are both electrically connected to the signal box 6 . The signal box 6 is signal-connected to an external monitoring device.

[0051] During specific implementation, the ground anchor interface 1 is connected and fixed to the external wire anchor line, and the tension of the wire anchor line will be transmitted to the ground anchor 4 through the ground anchor rod 2. The ground anchor 4 is fixed by burying, and the fixer 11 fixes the tension sensor 9 through the ground anchor 4. The tension sensor 9 is embedded in the fixer 11. When the tension is too large, the force-bearing part is the fixer 11, which is transmitted to the ground anchor 4 through the support rod 12 to prevent the tension from being damaged due to excessive tension, and then transmitted to the monitoring equipment by the signal box 6 and the transmitting antenna 7 to measure the ground anchor force.

[0052] In this embodiment, an anti-interference magnetic ring 3 is further included, and the anti-interference magnetic ring 3 is arranged on the ground anchor rod 2 or the connecting rod 10.

[0053] In other embodiments, the anti-interference magnetic ring 3 is arranged between the ground anchor rod 2 and the connecting rod 10, and the first end of the anti-interference magnetic ring 3 is connected to the second end of the ground anchor rod 2, and the second end is connected to the first end of the connecting rod 10.

[0054] In this embodiment, the ground anchor 4 is a pull-plate type ground anchor.

[0055] In this embodiment, the ground anchor 4 is a hollow structure with an opening at the bottom. A cross bar 14 is provided inside the ground anchor 4, and a contact plate 13 is connected to the opening. A long hole is provided on the contact plate 13, and the first end of the displacement sensor 5 passes through the long hole and is rotatably connected to the cross bar 14. A vertical rod is provided in the center of the ground anchor 4, and the vertical rod is provided corresponding to the tension sensor 9. A gap is left between the top of the vertical rod and the bottom end of the tension sensor 9. The vertical rod is a hollow rod, and the vertical rod is connected to the inside of the ground anchor 4.

[0056] In this embodiment, a transmitting antenna 7 is further included, and the transmitting antenna 7 is connected to the signal box 6 .

[0057] Principle of ground anchor force measurement: After the wire is connected to the ground anchor interface 1, the wire applies an upward force to the ground anchor rod 2, and the ground anchor rod 2 moves upward, causing a relative displacement between the ground anchor 4 and the ground anchor rod 2. At this time, the tension sensor 9 is subjected to tension and the relative displacement provided by the tension, thereby generating tension data inside the tension sensor 9. The tension sensor 9 works based on the strain resistance effect. When tension is generated at the outer end, the ground anchor rod 2 drives the tension sensor 9, and its internal core component, the strain gauge, deforms, thereby causing a change in resistance. After the resistance changes, the strain gauge outputs a voltage signal proportional to the tension. The obtained voltage signal is converted into a standard signal that is easy to collect by the signal box through the signal amplifier inside the sensor (the signal amplifier amplifies the weak bridge output voltage and linearizes it), and finally outputs it to the display device or data system in the form of a standard signal). It is converted into a standard signal that is easy to collect, and finally the signal is transmitted to the monitoring equipment through the transmitting antenna 7.

[0058] In this embodiment, the measuring equipment transmits data, and the anchor force measurement results are transmitted using the signal box 6. After the signal box 6 buried underground receives the standard signal from the tension sensor 9, in order to improve the signal's penetration and anti-interference capabilities, the underground signal is usually modulated. After being modulated by the signal box 6, it is converted into a low-frequency electromagnetic wave (low-frequency electromagnetic wave has a strong soil penetration ability) and transmitted to the transmitting antenna 7. After receiving the electromagnetic wave signal from underground, the transmitting antenna 7 will convert the change of the electromagnetic wave into a change of current, generating an electrical signal proportional to the original signal. Through electromagnetic field coupling, the interaction of the electric field or magnetic field is coupled with the ground antenna, and then received by the ground antenna, thereby transmitting the underground signal to the ground monitoring equipment.

[0059] During specific implementation, the anti-interference magnetic ring 3 ensures that the measurement information is not interfered with by the harsh outdoor environment.

[0060] In this embodiment, a support frame 8 is provided outside the signal box 6 .

[0061] In this embodiment, a battery is installed inside the signal box 6 .

[0062] The present invention can monitor the stress state of the ground anchor buried in the soil in real time, which solves the limitations of traditional ground anchor devices. The use of tension sensors can better detect the stress conditions of the ground anchor when in use, facilitates safety testing, and is of great value in improving the intrinsic safety of power construction. Example 2

[0063] This embodiment provides a method for using an intelligent tension monitoring ground anchor device, using the intelligent tension monitoring ground anchor device provided in Example 1, and the method includes the following steps:

[0064] S10. Preliminary preparations:

[0065] Ensure that the ground anchor 4, tension sensor 9, displacement sensor 5, signal box 6, battery, and antenna are intact and that the tension sensor 9 and displacement sensor 5 are accurately calibrated. Conduct an on-site survey of the geological conditions at the location where the ground anchor 4 will be buried, and measure soil properties (such as density and moisture content) to determine the designed burial depth and installation angle of the ground anchor 4.

[0066] During specific implementation, system configuration: set sensor parameters (such as sampling frequency and range) according to project requirements and calibrate the signal amplifier.

[0067] During implementation, power preparation: install the battery and check whether the power supply is sufficient, and ensure that the connection between the signal box and the sensor is stable.

[0068] S20. Installation and connection of on-site equipment:

[0069] S21, burying of anchor 4;

[0070] Bury the ground anchor 4 to the designed depth and use burying tools to ensure the stability of the ground anchor 4. Connect the second end of the ground anchor rod 2 to the anti-interference magnetic ring 3 and connect it to the force-bearing end of the tension sensor 9 through the connecting rod 10.

[0071] S22, tension sensor 9 arrangement:

[0072] Fix the tension sensor 9 at the stress point and use a protective device (such as a fixture) to avoid damage due to over-range. Ensure that there is no dirt on the sensor surface;

[0073] S23, signal line connection:

[0074] Check whether the standard signals output by the tension sensor and displacement sensor can be smoothly transmitted to the signal box, whether the line is short-circuited or has poor contact, and whether the low-frequency electromagnetic waves modulated by the signal box are correctly output to the ground monitoring equipment through the transmitting antenna.

[0075] S30. Measurement of ground anchor force:

[0076] Measurement principle: The anchor tension is measured through the strain gauge effect of the sensor. When tension is applied, the resistance change of the strain gauge is converted into a voltage signal, which is then linearized and output as a standard signal.

[0077] Data processing: The weak signal is amplified by the sensor amplifier so that it can be received and processed by the signal box. The signal box performs low-frequency modulation to optimize signal penetration and anti-interference capabilities.

[0078] Measurement steps: Start the system, connect the tension sensor and displacement sensor to the control terminal, apply simulated tension under preset conditions, verify sensor accuracy, record the tension value in real time, analyze data changes, and observe whether there are any abnormal fluctuations.

[0079] Remote data monitoring:

[0080] Monitoring method: Use remote monitoring software based on a graphical interface (such as PLC or cloud platform) to interact with the ground anchor sensor system. The operation interface includes modules such as real-time data display, historical data storage, and alarm information.

[0081] Monitoring equipment: divided into on-site equipment and remote monitoring equipment. On-site equipment: Ground receiving antenna: responsible for receiving underground signals and transmitting them to the monitoring terminal.

[0082] Portable data receiver (such as a handheld terminal or mobile tablet) to view data in real time. Remote monitoring equipment: Computer or server: used to collect, analyze and store data, supporting Wi-Fi or IoT communication.

[0083] Wireless transmission module: LoRa or NB-IoT module is recommended to achieve long-distance, low-power communication.

[0084] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An intelligent tension monitoring anchor device, characterized in that: include: A ground anchor rod, wherein a ground anchor interface is provided at a first end of the ground anchor rod; a tension sensor, wherein the force-bearing end of the tension sensor is connected to the second end of the anchor rod via a connecting rod; a fixer, wherein the first end of the fixer is slidably connected to the connecting rod, and the second end of the fixer is connected to the upper end of the housing of the tension sensor; a ground anchor, wherein a first end of the ground anchor is connected to a first end of the fixer via a plurality of support rods; a displacement sensor, wherein a first end of the displacement sensor is rotatably connected to the second end of the ground anchor; A signal box is rotatably connected to the second end of the displacement sensor, the tension sensor and the displacement sensor are both electrically connected to the signal box, and the signal box is connected to an external monitoring device by signal.

2. The intelligent tension monitoring ground anchor device according to claim 1, characterized in that: It also includes an anti-interference magnetic ring, which is arranged on the ground anchor rod or the connecting rod.

3. The intelligent tension monitoring ground anchor device according to claim 1, characterized in that: The ground anchor is a pull-plate type ground anchor.

4. The intelligent tension monitoring ground anchor device according to claim 1, characterized in that: The ground anchor is a hollow structure with an opening at the bottom.

5. The intelligent tension monitoring ground anchor device according to claim 4, characterized in that: A crossbar is provided inside the ground anchor, and a matching contact plate is connected to the opening; a long hole is provided on the contact plate, and the first end of the displacement sensor passes through the long hole and is rotatably connected to the crossbar.

6. The intelligent tension monitoring ground anchor device according to claim 1, characterized in that: It also includes a transmitting antenna, which is connected to the signal box.

7. The intelligent tension monitoring ground anchor device according to claim 1, characterized in that: A supporting frame is arranged outside the signal box.

8. The intelligent tension monitoring ground anchor device according to claim 1, characterized in that: A battery is installed inside the signal box.

9. A method for using an intelligent tension monitoring ground anchor device, characterized in that: Using the intelligent tension monitoring ground anchor device according to any one of claims 1 to 8, the method comprises the following steps: S10. Preliminary preparations: Ensure that the ground anchor, tension sensor, displacement sensor, signal box, battery, and antenna are intact, and that the tension sensor and displacement sensor are accurately calibrated. Conduct on-site surveys to determine the geological conditions of the anchor burial location and measure soil properties to determine the designed anchor burial depth and installation angle. S20. Installation and connection of on-site equipment: S30. Measurement of ground anchor force: Connect the tension sensor and displacement sensor to the control terminal, apply simulated tension under preset conditions, verify the accuracy of the tension sensor, record the tension value in real time, analyze the data changes, and observe whether there are any abnormal fluctuations.

10. The method for using the intelligent tension monitoring ground anchor device according to claim 9, characterized in that: Step S20 includes: S21, ground anchor burial; Bury the ground anchor to the designed depth, connect the second end of the ground anchor rod to the anti-interference magnetic ring, and connect it to the force-bearing end of the tension sensor through the connecting rod; S22, tension sensor arrangement: Fix the tension sensor at the stress point and ensure that there is no dirt on the sensor surface; S23, signal line connection.

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