System and method for preventing cave animals from eroding dam body based on electroosmosis pulse

Abstract

The invention discloses a system and method for preventing cave animals from eroding a dam body based on electroosmosis pulses. A plurality of pairs of rod-shaped electrodes are arranged in the dam body of the dam in the length direction of the dam; the rod-shaped electrode is vertically inserted into the dam body and is directly inserted to the dam bottom; the negative pole rod is close to one side of the upstream face, the positive pole rod is close to one side of the downstream face, and after electroosmosis pulses are applied to the electrodes, a barrier electric field capable of repelling cavernous animals is formed between the positive pole rod and the negative pole rod, so that the effect of preventing the cavernous animals from eroding a dam body is achieved.

Description

Technical Field

[0001] The invention relates to a system and method for preventing burrowing animals from eroding a dam body based on electroosmotic pulses. Background Art

[0002] The dam is the safety guarantee of the river. Animals that grow in the dam environment, such as earthworms, mice, termites, turtles, eels, snakes, etc., have the nature of digging or drilling holes. Therefore, once these animals reproduce in large numbers and disorderly, they will cause huge hidden dangers to the dam. "Han Feizi·Yu Lao" says: "A thousand-mile dam collapses because of ant holes", which is exactly what it means. Because the growth and reproduction of these animals are extremely hidden, it is extremely difficult to control their erosion of the dam at present, so there are few reports on relevant effective preventive measures.

[0003] Therefore, it is necessary to design a new solution to prevent animals from eroding the dam body. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a system and method for preventing burrowing animals from eroding a dam body based on electroosmotic pulses. The system and method for preventing burrowing animals from eroding a dam body based on electroosmotic pulses can establish an electric field to drive away burrowing animals and prevent them from damaging the dam.

[0005] The technical solution of the invention is as follows:

[0006] A system for preventing burrowing animals from eroding a dam body based on electroosmotic pulses, wherein a plurality of pairs of rod-shaped electrodes are arranged in the dam body along the length direction of the dam; the rod-shaped electrodes are vertically inserted in the dam body and directly inserted to the bottom of the dam; the negative electrode rod is close to the water-facing side, and the positive electrode rod is close to the water-receiving side. After electroosmotic pulses are applied to the electrodes, a barrier electric field is formed between the positive electrode rod and the negative electrode rod to drive away burrowing animals, thereby preventing burrowing animals from eroding the dam body.

[0007] Moreover, the electric field is also an anti-seepage electric field, which can effectively inhibit water molecules from leaking through the dam body to the back side (back water surface) of the dam body, thereby contributing to the stability of the dam.

[0008] Slope erosion prevention devices are also arranged on the water-facing slope;

[0009] The slope erosion prevention device is a slope erosion prevention device based on multiple electrodes or mesh electrodes.

[0010] The slope erosion prevention device based on mesh electrodes includes: a zinc tube positive electrode and a mesh negative electrode, and also includes a pulse generator connected to the zinc tube positive electrode and the mesh negative electrode and providing pulses to the zinc tube positive electrode and the mesh negative electrode; the mesh negative electrode is arranged along the slope surface where the dam contacts the water body; the zinc tube positive electrode is inserted into the structure of the dam (i.e., the natural soil or concrete of the dam itself), the pulse generator is arranged on the dam, and the insertion direction of the zinc tube positive electrode is parallel to the water-facing slope surface.

[0011] It also includes a pulse generator and a detection terminal; the pulse generator is used to provide pulses for the rod-shaped electrodes; the detection terminal is used to detect the current signal passing through the rod-shaped electrodes; the current signal is aggregated to the monitoring center, thereby realizing the monitoring of the moisture content of the dam body, and the current signal has a positive correlation with the moisture content of the dam body, which is specifically the prior art.

[0012] A plurality of pairs of rod-shaped electrodes are controlled in groups, and each group is equipped with a pulse generator; and a monitoring center is used to perform distributed control of the pulse generators via a field bus.

[0013] A method for preventing burrowing animals from eroding a dam body based on electroosmotic pulses uses the aforementioned system to interfere with and drive away burrowing animals in the dam, thereby facilitating the structural safety of the dam body.

[0014] Each pair of electrodes includes a positive electrode rod and a negative electrode rod, and the distance between the positive electrode rod and the negative electrode rod is within 2 meters (taking the electroosmotic pulse output voltage level of 36V and below as an example).

[0015] Multiple pairs of electrodes are divided into K groups; K is an integer, K≥3; each group of electrodes includes at least 3 pairs of electrodes; a pulse generator is used to implement group control on the K groups of electrodes (to avoid excessively long wiring and to facilitate zoning management and control).

[0016] Multiple electrodes are also arranged on the water-facing slope.

[0017] The multiple electrodes are arranged in the following way: the water-facing slope of the dam is divided into M rows and N columns of grid areas in a grid shape; M≥3, N≥3; at least one set of positive and negative electrodes is set in each grid area; the positive and negative electrodes are vertically inserted in the water-facing slope of the dam; the positive and negative electrodes are connected to the pulse generator; the pulse generator is controlled by the control center. The dam protection system also includes a data acquisition terminal (MCU data processing unit) for collecting current data flowing through each positive and negative electrode to feed back to the control center;

[0018] The length of the overlapping portion of the positive and negative electrodes of adjacent columns is L; L is 30-100 cm, preferably 50 cm.

[0019] The bottom ends of the positive and negative electrodes in each set of positive and negative electrodes are aligned;

[0020] Different rows of grid areas use different pulse voltage levels. The pulse voltage level of the grid area with a large depth (i.e. the number of rows or rows, counted from top to bottom) is higher than that of the grid area with a small depth. The higher the water pressure, the higher the voltage. The maximum is no more than 36V. The minimum is 12V. The middle can be 24V, or other voltages, such as 16V, etc.

[0021] The area of ​​the grid area shall not exceed 50 square meters.

[0022] The dam is equipped with a pulse generator, which is connected to an electrode. In each heavy electrode, the negative electrode is on the side close to the water body (the water-facing side), and the positive electrode is on the side away from the water body (the water-facing side). The system also includes a data acquisition terminal (MCU data processing unit) for collecting current data flowing through each positive and negative electrode to feed back to the control center. The pulse generator sends out electroosmotic pulses through the electrode. The electrode is inserted into the base of the dam. It also includes a control center, which is connected to N pulse generators through a CAN bus communication. The control center can be an industrial computer or a master control device based on DSP or PLC. It is also called a host.

[0023] The pulse output of each grid area is controlled in sequence; for example, only the grid area in the first column outputs pulses during t1, only the grid area in the second column outputs pulses during t2, and only the grid area in the third column outputs pulses during t3. The water in the dam body is controlled to move in an orderly manner under the action of electroosmotic force. This ensures the stability of the water content of the dam body medium and the safety of the dam body.

[0024] Each pulse generating unit is connected to multiple positive electrodes and multiple negative electrodes; in the pulse generating unit, the MCU serves as the main control unit, and the MCU controls the pulse generator to generate a pulse signal of a preset frequency, duty cycle and voltage value through a pulse driving circuit, and a first current sampling resistor is provided on the wire connecting the pulse generator to each positive electrode; a second current sampling resistor is provided on the wire connecting the pulse generator to each negative electrode; the voltage sampling signals generated on the first current sampling resistor and the second current sampling resistor enter the MCU after passing through their respective corresponding amplification circuits and A / D conversion circuits, thereby completing data collection;

[0025] Different working units in different rows use different voltages. The pulse frequency is generally 4Hz, and the frequency range is:

[0026] 2-10Hz.

[0027] The dam protection system also includes a bus, and a plurality of pulse generating units are mounted on the bus. The pulse generating unit includes a pulse generator and electrodes for generating a pulse sequence. The electrodes include a positive electrode and a negative electrode. The electrodes are arranged at

[0028] The system also includes an IoT platform and a monitoring center. The monitoring center is connected to the IoT platform and mounted on the bus. The monitoring center and the IoT platform are connected through the MQTT mechanism. MQTT (Message Queuing Telemetry Transport) refers to message queue telemetry transmission.

[0029] The bus is a CAN bus.

[0030] Each pulse generating unit is connected to a plurality of positive electrodes and a plurality of negative electrodes.

[0031] In the pulse generating unit, the MCU serves as the main control unit. The MCU controls the pulse generator to generate a pulse signal with a preset frequency, duty cycle and voltage value through a pulse driving circuit. A first current sampling resistor is provided on the wire connected to each positive electrode of the pulse generator; a second current sampling resistor is provided on the wire connected to each negative electrode of the pulse generator;

[0032] The voltage sampling signals generated on the first current sampling resistor and the second current sampling resistor respectively pass through the corresponding amplification circuit and A / D conversion circuit and then enter the MCU to complete data collection.

[0033] MCU data conversion mainly converts analog signals into binary format, and then digitally filters, classifies, stores, and encodes them into CAN communication protocol format and sends them to the bus via the CAN controller.

[0034] An alarm is installed at the monitoring center or the pulse generating unit.

[0035] The negative electrode is a negative electrode rod, and the positive electrode adopts a zinc tube positive electrode; the negative electrode net or negative electrode rod is arranged along the slope surface where the dam contacts the water body; the zinc tube positive electrode is inserted into the structure of the dam (that is, the natural soil or concrete of the dam itself), and the pulse generator is arranged on the dam.

[0036] The water content of the dam slope can be determined by the current data collected by the pulse generating unit. In addition to forming an electric field and animals, it can also further realize the status monitoring of the dam slope.

[0037] When the current is higher than the preset value, the duty cycle of the electroosmotic pulse is increased to reduce the water content of the dam slope and achieve active stability of the dam slope. When the water content exceeds 20%, the positive pulse width increases by 5 milliseconds every 6 hours and the negative pulse decreases by 2 milliseconds until the water content drops by 20%. The positive pulse width decreases by 5 milliseconds every 6 hours and the negative pulse increases by 2 milliseconds to maintain the stability of the water content of the slope. The setting range of electroosmotic pulse parameters: positive pulse width 100-200ms, negative pulse width 5-150ms, frequency 3 to 5Hz.

[0038] If the current is higher than the preset alarm value, the monitoring center or pulse generating unit will start the alarm, such as sound and light alarm, telephone alarm, etc.

[0039] The principle of electroosmotic pulse to drive away burrowing animals:

[0040] The use of electroosmotic pulse technology to disturb and drive away burrowing animals is reflected in two aspects:

[0041] (1) Electromagnetic field interference:

[0042] The pulses generated by the pulse generator are emitted by the electrodes, forming electric and magnetic fields inside the dam, interfering with the living habits of animals inside the dam and in the area where the dam contacts the water body, making it impossible for them to survive and reproduce in the disturbed dam area, which is beneficial to the stability of the dam body.

[0043] (2) Create a dry and wet environment that is unfavorable to burrowing animals:

[0044] Each animal has its own suitable dry and wet environment. For example, termites, humidity conditions also have an important impact on the reproduction of termites. A suitable humidity environment is conducive to the hatching of eggs and the growth and development of young termites. In the case of insufficient humidity, the reproduction rate of termites may decrease, and even affect the reproduction and survival of the entire ant colony. Data show that when the moisture content is 21.1%, the termite population will be affected.

[0045] When the moisture content was 18.3%, the soil burial rate was only 11.1% after 5 days, and when the moisture content was 18.3%, it could not be buried in the soil after 5 days.

[0046] The general principle is that when carrying out termite control on a dam, the moisture content of the dam should be controlled within the stable moisture content range of the dam, and avoid the moisture content range suitable for the growth and reproduction of termites (that is, avoid the comfort zone of termites).

[0047] An optional method is to periodically reduce the water content in the dam medium to below 15% based on the principle of electroosmotic pulse, such as maintaining it for 1-3 days, so as to drive it out of the area.

[0048] The positive voltage pulse has the longest pulse time and the signal amplitude is usually between 12 V and 36 V DC. The use of a bipolar pulse waveform prevents the concrete from over-drying and losing its structural integrity.

[0049] Beneficial effects:

[0050] The system and method for preventing burrowing animals from eroding a dam body based on electroosmotic pulses of the present invention have the following characteristics:

[0051] First, a front anti-erosion barrier based on multiple electrodes or mesh negative electrodes is set up on the water-facing surface; because the span of the earth dam slope is large and the distance of electroosmosis is limited, multiple electrodes or mesh electrodes need to be set up, and further, by switching the circuit, the water leakage in one direction is controlled to ensure the stability of the water content of the dam. Multiple groups of corresponding positive and negative electrodes are buried along the slope of the dam body on the water-facing surface, and the bottom ends of the positive and negative electrodes are aligned. The distance between the positive and negative electrodes is preferably within 2 meters. From the top of the dam, the top of the next group of positive electrodes should be about 50 cm different from the bottom of the next group of negative electrodes, and so on to the bottom of the dam. Along the lateral extension or natural direction of the dam body, the positive and negative electrode control area is divided into independent working groups, and the control area does not exceed 50 square meters. Based on the different flood heights, different voltages can be used from the top of the dam to the bottom of the dam to resist different water pressures. When the flood recedes, the voltage can be gradually adjusted according to different water levels. The system is started and operated uniformly 3 months before the flood.

[0052] In addition, anti-seepage facilities based on multiple pairs of electroosmotic electrodes are installed on the dam to form a second anti-seepage barrier;

[0053] The core of the present invention is to set up a double-layer anti-erosion barrier (one is to use multiple electrodes or mesh negative electrode layout to form a continuous electric field in the water-facing slope of the dam, thereby forming a continuous leakage blocking layer, and the other is an anti-seepage electrode located inside the dam), which can not only effectively prevent water molecules from leaking into the dam body, but also effectively block burrowing animals from growing and reproducing in the dam and on the water-facing surface, thereby achieving the goal of stabilizing the dam body. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic diagram of the system layout of the present invention for preventing burrowing animals from eroding the dam body based on electroosmotic pulse (vertical cross-sectional view, with a mesh negative electrode arranged on the water-facing surface);

[0055] Figure 2 It is a schematic diagram (top view) of the system layout for preventing burrowing animals from eroding a dam body based on electroosmotic pulses of the present invention;

[0056] Figure 3 It is a schematic diagram of the system layout of the present invention for preventing burrowing animals from eroding the dam body based on electroosmotic pulse (top view, multiple electrodes are arranged on the water-facing surface);

[0057] Figure 4 is a schematic diagram of electrode grouping arrangement;

[0058] Figure 5 It is the control circuit block diagram;

[0059] Figure 6 It is a schematic diagram of the arrangement of electrodes on the water-facing surface;

[0060] Figure 7 It is the electrical control block diagram;

[0061] Figure 8 Schematic diagram of the structure of the positive electrode rod (front cross-sectional view);

[0062] Fig. 9 This is the overall block diagram of the electroosmotic pulse system;

[0063] Fig.10 This is a schematic diagram of data acquisition in the electroosmotic pulse system;

[0064] Fig.11 is a schematic diagram of a pulse generating unit;

[0065] Fig.12 It is a pulse waveform diagram;

[0066] Fig.13 It is a schematic diagram of the system layout of the present invention for preventing burrowing animals from eroding the dam body based on electroosmotic pulse (vertical cross-sectional view, with a mesh negative electrode arranged on the water-facing surface);

[0067] Fig.14 It is a schematic diagram of the state of the mesh negative electrode after rolling up;

[0068] Fig.15 It is a schematic diagram of the state of the mesh negative electrode after unfolding (oblique grid);

[0069] Fig.16 It is a schematic diagram of the state of the mesh negative electrode after unfolding (positive square);

[0070] Fig.17 This is the overall block diagram of the electroosmotic pulse system with a mesh negative electrode.

[0071] Explanation of reference numerals: 1-pulse generator, 2-negative electrode layout area, 3-positive electrode layout area, 4-mesh electrode, 5-zinc tube positive electrode; 6-copper core wire, 7-conductive PE layer, 8-conductive mortar, 9-zinc tube, 10-cone, 11-electrode roll, 12-electrode unfolding end. 13-positive electrode rod, 14-negative electrode rod; 15-multiple electrodes. 16-positive electrode in multiple electrodes, 17-negative electrode in multiple electrodes. 18-dam body, 19-sub-control area, 20-blocking electric field, 21-water-facing surface. DETAILED DESCRIPTION

[0072] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0073] Example 1: A system for preventing burrowing animals from eroding the dam body based on multiple electrodes on the water-facing surface and vertical electrodes on the dam

[0074] like Figure 2-12, a system based on electroosmotic pulses to prevent burrowing animals from eroding the dam body. Multiple pairs of rod electrodes are set in the dam body along the length of the dam; the rod electrodes are vertically inserted into the dam body and inserted directly into the dam bottom; the negative electrode rod is close to the water-facing side, and the positive electrode rod is close to the back-water side. After applying electroosmotic pulses to the electrodes, a barrier electric field that can drive away burrowing animals is formed between the positive and negative electrodes, thereby preventing burrowing animals from eroding the dam body. Moreover, the electric field is also an anti-seepage electric field, which can effectively inhibit water molecules from leaking through the dam body to the back side (back-water side) of the dam body, thereby facilitating the stability of the dam.

[0075] It also includes a pulse generator and a detection terminal; the pulse generator is used to provide pulses for the rod-shaped electrodes; the detection terminal is used to detect the current signal passing through the rod-shaped electrodes; the current signal is aggregated to the monitoring center, thereby realizing the monitoring of the moisture content of the dam body, and the current signal has a positive correlation with the moisture content of the dam body, which is specifically the prior art.

[0076] Each pair of electrodes includes a positive electrode rod and a negative electrode rod, and the distance between the positive electrode rod and the negative electrode rod is within 2 meters (taking the electroosmotic pulse output voltage level of 36V and below as an example).

[0077] like Figure 2 , multiple pairs of electrodes are divided into 3 groups; each group of electrodes includes 3 pairs of electrodes; a pulse generator is used to implement group control on the 3 groups of electrodes (to avoid too long wiring and to facilitate partition management and control.).

[0078] The system also includes a control center, multiple pulse generators and multiple sets of positive and negative electrodes; (Multiple electrode layout refers to the layout of multiple sets of positive and negative electrodes in gradients;)

[0079] A slope erosion prevention device is also arranged on the water-facing slope; the slope erosion prevention device is a multi-electrode slope erosion prevention device. That is, multiple electrodes are also arranged on the water-facing slope, such as Figure 3 and Figure 4 The water-facing slope of the dam is divided into grids, with 9 grid areas in 3 rows and 3 columns. Three groups of positive and negative electrodes are set in each grid area. The positive and negative electrodes are vertically inserted in the water-facing slope of the dam. The negative electrode rod is close to the water-facing side, and the positive electrode rod is close to the back water side. The positive and negative electrodes are connected to the pulse generator. The pulse generator is controlled by the control center.

[0080] When the pulse voltage adopts a voltage level of 36V or below, the distance between the positive and negative poles in each group of positive and negative poles is within 2 meters.

[0081] The length of the overlapping portion of the positive and negative electrodes of adjacent columns is L; L is 50 cm.

[0082] The bottom ends of the positive and negative electrodes in each set of positive and negative electrodes are aligned.

[0083] Different rows of grid areas use different pulse voltage levels. The pulse voltage level of the grid area with a large depth (i.e. the number of rows or rows, counted from top to bottom) is higher than that of the grid area with a small depth. The higher the water pressure, the higher the voltage. The voltages of the 1st to 3rd rows are 12V, 24V and 36V respectively. The different voltage levels are determined by Figure 3 The first driving circuit, the second driving circuit and the third driving circuit are provided respectively.

[0084] The area of ​​the grid area shall not exceed 50 square meters.

[0085] The pulse output of each grid area is controlled in sequence; for example, only the grid area in the first column outputs pulses during t1, only the grid area in the second column outputs pulses during t2, and only the grid area in the third column outputs pulses during t3. T1 (or t2, t3) can be a value between 1-100s; the time is cycled in sequence; the water in the dam body is controlled to move in an orderly manner under the action of electroosmotic force. This ensures the stability of the water content of the dam body medium and the safety of the dam body.

[0086] Each pulse generating unit is connected to multiple positive electrodes and multiple negative electrodes; in the pulse generating unit, the MCU serves as the main control unit, and the MCU controls the pulse generator to generate a pulse signal of a preset frequency, duty cycle and voltage value through a pulse driving circuit, and a first current sampling resistor is provided on the wire connecting the pulse generator to each positive electrode; a second current sampling resistor is provided on the wire connecting the pulse generator to each negative electrode; the voltage sampling signals generated on the first current sampling resistor and the second current sampling resistor enter the MCU after passing through their respective corresponding amplification circuits and A / D conversion circuits, thereby completing data collection;

[0087] A method for preventing burrowing animals from eroding a dam body based on electroosmotic pulses, using the aforementioned system to implement active protection of the dam to prevent animals from eroding the dam.

[0088] In this system, the pulse frequency is 4Hz.

[0089] The system is usually activated in advance before a flood arrives.

[0090] Furthermore, the monitoring center is communicatively connected to the plurality of pulse generating units;

[0091] Each pulse generating unit includes a pulse generator and a positive electrode and a negative electrode connected to the pulse generator, the positive electrode and the negative electrode are arranged on the flood control dam, and the pulse generating unit collects current data from the positive electrode and the negative electrode as a pulse generating unit; the pulse generator is used to generate an electroosmotic pulse;

[0092] The monitoring center is used to collect the current data sampled by each pulse generating unit and process the data, so as to realize the monitoring of the state of the dam slope and implement active stability control of the dam slope based on the electroosmotic pulse.

[0093] It also includes an Internet of Things platform, and the monitoring center is connected to the Internet of Things platform in communication. The monitoring center and the Internet of Things platform are connected in communication through the MQTT (Message Queuing Telemetry Transport) mechanism.

[0094] The monitoring center is connected with multiple pulse generating units via CAN bus communication.

[0095] In the pulse generating unit, the MCU serves as the main control unit. The MCU controls the pulse generator to generate a pulse signal with a preset frequency, duty cycle and voltage value through a pulse driving circuit. A first current sampling resistor is provided on the wire connected to the positive electrode of the pulse generator; a second current sampling resistor is provided on the wire connected to the negative electrode of the pulse generator;

[0096] The voltage sampling signals generated on the first current sampling resistor and the second current sampling resistor respectively pass through the corresponding amplification circuit and A / D conversion circuit and then enter the MCU to complete data collection.

[0097] MCU data conversion mainly converts analog signals into binary format, and then digitally filters, classifies, stores, and encodes them into CAN communication protocol format and sends them to the bus via the CAN controller.

[0098] An alarm is installed at the monitoring center or the pulse generating unit.

[0099] The negative electrode is a negative electrode rod, and the positive electrode is a zinc tube positive electrode.

[0100] Specifically, the monitoring center uses a system screen, which is a touch screen with an embedded operating system. It is used to view the data status of various sites and the safety indicators of the dam. If necessary, relevant parameters can be set.

[0101] When the system is working, the water content of the dam slope is determined by the current data collected by the pulse generating unit, so as to realize the status monitoring of the dam slope.

[0102] When the current is higher than the preset value, the duty cycle of the electroosmotic pulse is increased to reduce the water content of the dam slope and achieve active stabilization of the dam slope.

[0103] The specific control method is: when the moisture content exceeds 20%, the positive pulse width increases by 5 milliseconds every 6 hours, and the negative pulse decreases by 2 milliseconds, until the moisture content drops by 20%, the positive pulse width decreases by 5 milliseconds every 6 hours, and the negative pulse increases by 2 milliseconds to keep the moisture content of the slope stable.

[0104] The setting range of electroosmotic pulse parameters is as follows: positive pulse width 100-200ms, negative pulse width 5-150ms, and frequency 3 to 5Hz.

[0105] If the current is higher than the preset alarm value, the monitoring center or pulse generating unit will start the alarm, such as sound and light alarm, telephone alarm, etc.

[0106] The structure of the rod-shaped electrode as the positive electrode is as follows Figure 8 As shown, the outer layer of the rod electrode adopts a zinc tube with a certain structural strength. The zinc tube is not only highly corrosion-resistant, but also has excellent conductivity. It can continuously provide cations under the action of electroosmosis to form hydrated cations. The front end of the rod electrode adopts a conical structure, which is convenient for easily passing through the soil and rock layer under the action of applied pressure, and is convenient for burying inside the dam. The current transmission adopts an inner core copper wire, and the outer conductive PE is used as the conduction of the positive current. The gap between the conductive PE and the zinc tube is filled with conductive mortar. This structure can effectively ensure the strength of the far-end electroosmotic field without attenuation. The conductive mortar is filled to ensure good contact between the conductive PE and the zinc tube. A heat shrink sleeve can also be set at the upper end of the rod electrode to prevent the overflow of the conductive mortar.

[0107] Example 2: A system for preventing burrowing animals from eroding the dam body by arranging a mesh negative electrode on the water-facing surface and vertical electrodes on the dam

[0108] The difference between this embodiment and embodiment 1 is that the water-facing surface is arranged differently; specifically:

[0109] Slope erosion prevention devices are also arranged on the water-facing slope;

[0110] The slope erosion prevention device is a slope erosion prevention device based on mesh electrodes. The slope erosion prevention device based on mesh electrodes includes: a zinc tube positive electrode and a mesh negative electrode, and also includes a pulse generator connected to the zinc tube positive electrode and the mesh negative electrode and providing pulses to the zinc tube positive electrode and the mesh negative electrode; the mesh negative electrode is arranged along the slope surface where the dam contacts the water body; the zinc tube positive electrode is inserted into the structure of the dam (i.e., the natural soil or concrete of the dam itself), the pulse generator is arranged on the dam, and the insertion direction of the zinc tube positive electrode is parallel to the water-facing slope surface.

[0111] The structure of the negative electrode network, i.e. the mesh negative electrode, and its layout and application in flood control dams can be found in Figure 1 as well as Figure 13-17 .

[0112] The biggest advantage of the mesh negative electrode is that it is easy to lay out. It is laid flat on the water-facing surface (slope) from top to bottom and fixed with steel nails or piles.

[0113] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for preventing burrowing animals from eroding a dam body based on electroosmotic pulses, characterized in that: A plurality of pairs of rod electrodes are arranged in the dam body along the length direction of the dam; the rod electrodes are vertically inserted in the dam body; the negative electrode rod is close to the water-facing side, and the positive electrode rod is close to the water-receiving side. After electroosmotic pulses are applied to the electrodes, a barrier electric field is formed between the positive electrode rod and the negative electrode rod, which can drive away burrowing animals, thereby preventing burrowing animals from eroding the dam body.

2. The system for preventing burrowing animals from eroding a dam body based on electroosmotic pulse according to claim 1, characterized in that: Slope erosion prevention devices are also arranged on the water-facing slope; The slope erosion prevention device is a slope erosion prevention device based on multiple electrodes or mesh electrodes.

3. The system for preventing burrowing animals from eroding a dam body based on electroosmotic pulse according to claim 2, characterized in that: The slope erosion prevention device based on mesh electrodes includes: a zinc tube positive electrode and a mesh negative electrode, and also includes a pulse generator connected to the zinc tube positive electrode and the mesh negative electrode and providing pulses to the zinc tube positive electrode and the mesh negative electrode; the mesh negative electrode is arranged along the slope surface where the dam contacts the water body; the zinc tube positive electrode is inserted into the structure of the dam (i.e., the natural soil or concrete of the dam itself), the pulse generator is arranged on the dam, and the insertion direction of the zinc tube positive electrode is parallel to the water-facing slope surface.

4. The system for preventing burrowing animals from eroding a dam body based on electroosmotic pulse according to any one of claims 1 to 3, characterized in that: It also includes a pulse generator and a detection terminal; the pulse generator is used to provide pulses for the rod-shaped electrodes; the detection terminal is used to detect the current signal passing through the rod-shaped electrodes; the current signal is aggregated to the monitoring center, thereby realizing the monitoring of the moisture content of the dam body.

5. The system for preventing burrowing animals from eroding a dam body based on electroosmotic pulse according to claim 4, characterized in that: A plurality of pairs of rod-shaped electrodes are controlled in groups, and each group is equipped with a pulse generator; and a monitoring center is used to perform distributed control of each pulse generator via a field bus.

6. A method for preventing burrowing animals from eroding a dam body based on electroosmotic pulses, characterized in that: The system described in any one of claims 1 to 5 is used to disturb and drive away burrowing animals in the dam, thereby facilitating the structural safety of the dam.

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