Geotextile mat with electro-osmosis function

Abstract

The application provides a geotextile mat with electroosmosis function, and belongs to the technical field of geotextile mats.The application comprises a fixing rod arranged on a geotextile mat body;an electrode arranged on the geotextile mat body and fixed on the fixing rod, used for providing the geotextile mat with electroosmosis function, and also used for acting as a keel of the geotextile mat to limit deformation of the geotextile mat; a data collector arranged on the geotextile mat body, used for measuring tailing pressure and water content and transmitting to a power supply collecting device; and a potential measuring needle arranged on the data collector, used for measuring current and voltage between tailings and transmitting to the power supply collecting device.The application has the electroosmosis function by arranging the electrode and the data collector on the traditional geotextile mat and cooperating with the power supply collecting device, and can adjust the drainage intensity according to actual conditions, so that the monitoring-drainage integration is realized.

Description

Technical Field

[0001] This invention relates to the field of geomat technology, and more particularly to a geomat with electroosmotic function. Background Technology

[0002] The number of tailings ponds is gradually decreasing, but the problem of tailings accumulation needs to be addressed. Mining projects are beginning to raise and expand the size of existing tailings ponds. With the continuous advancement of mineral processing technology, tailings are becoming finer and smaller in particle size. While this increases the yield of useful components in the ore, it also increases the difficulty of draining accumulated tailings.

[0003] Tailings dams are man-made high-potential-energy hazards; their collapse would cause immense damage. The gold wetting line is the lifeline of a tailings dam. During the rainy season in humid regions, the wetting line can remain persistently high, increasing the probability of dam collapse by tens of times compared to normal times. Water within the tailings dam is the primary factor influencing the wetting line. When this water accumulates for extended periods, the wetting line continues to rise, eventually reaching its limit and causing a dam collapse. Traditional drainage measures, including pipes and ditches, have limited capacity. They are effective for surface free water but have a weak impact on bound water and water deep within the dam, failing to fundamentally solve the problem of a high wetting line.

[0004] Geomats, due to their high durability, low cost, and ability to significantly improve soil strength, have been widely used in various aspects of geotechnical engineering, including roads, foundation treatment, retaining walls, and slope reinforcement, achieving good results. The grooves on their surface can also serve as drainage channels, enhancing the soil's drainage capacity. To further improve the drainage performance of geomats, a proposal has been made to endow them with electroosmotic properties, transforming traditional geomats into conductive geomats with superior drainage capabilities. Summary of the Invention

[0005] In view of this, in order to endow traditional geomats with electroosmotic efficiency, the present invention provides a geomat with electroosmotic function. By setting electrodes and data acquisition devices on traditional geomats and cooperating with power supply acquisition devices, the present invention has electroosmotic function and can adjust the drainage intensity according to the actual situation, realizing integrated monitoring and drainage.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A geomat with electroosmotic function includes:

[0008] Fixing rods are installed on the geomat body;

[0009] Electrodes are disposed on the geomat body and fixed to the fixing rod, used to provide electroosmosis function for the geomat, and also to act as the keel of the geomat to limit the deformation of the geomat;

[0010] Data sensor, used for data docking and transmission at the electrodes;

[0011] A data acquisition device, installed on the geomat body, is used to measure tailings pressure and moisture content and transmit the data to a power supply acquisition device.

[0012] A potential probe, mounted on the data acquisition unit, is used to measure the current and voltage between tailings and transmit the data to the power acquisition device.

[0013] Preferably, the electrode has a copper core and an outer carbon fiber protective layer to slow down copper core corrosion and improve conductivity. One end of the electrode has an exposed copper core with a spiral shape on its surface; the spiral shape is screwed onto a connecting nut, which is connected to a plug via a wire. The plug is connected to the power acquisition device to supply power to the electrode.

[0014] Preferably, the power acquisition device is equipped with:

[0015] The current / voltage switch button is used to switch between changing the current and voltage.

[0016] The adjustment knob is used to adjust the output voltage and current.

[0017] Preferably, the following are also provided:

[0018] The display screen shows the tailings pressure, moisture content, and current and voltage between tailings, and adjusts the power supply as needed.

[0019] Preferably, the fixing rod is provided with built-in wires that connect different electrodes, and the power supply acquisition device supplies power to different electrodes;

[0020] The fixed rod is also equipped with a data cable, which is used to connect the sensor and the power supply acquisition device. The data cable is used to transmit the tailings pressure, moisture content, current and voltage between the tailings measured by the sensor and the potential probe to the power supply acquisition device.

[0021] Preferably, the electrode is provided with an electrode groove and a groove buckle;

[0022] The groove buckle is disposed on the electrode groove, the electrode groove is used to receive the electrode part of another geomat, and the groove buckle is used to snap the electrode part of another geomat.

[0023] Preferably, the fixing rod is provided with a data acquisition groove, and the data acquisition device is disposed in the data acquisition groove.

[0024] Preferably, the fixing rod has a screw hole for fixing the electrode.

[0025] Preferably, the electrode is an electro-mechanical composite electrode.

[0026] The geotextile mat with electroosmotic function provided by this invention, by setting electrodes and sensors on a traditional geotextile mat and cooperating with a power supply and data acquisition device, enables this invention to have electroosmotic function and can adjust the drainage intensity according to actual conditions, realizing integrated monitoring and drainage. Compared with the prior art, it has the following beneficial effects:

[0027] The geotextile mat with electro-osmotic function provided by this invention is easy to assemble, technically simple, effective, and environmentally friendly. It can adjust the drainage intensity according to different modes based on the water content inside the tailings dam, resulting in more thorough drainage compared to traditional drainage pipes and ditches. It can remove free water that cannot be effectively drained, has minimal impact on the tailings dam structure, and significantly enhances the dam's bearing capacity and stability. Compared to traditional geotextile mats, this invention exhibits less deformation when facing uneven tailings settlement. The device described in this invention is suitable for draining fine-grained tailings, providing a new approach and solution for tailings dam safety.

[0028] The geotextile mat with electro-osmotic function provided by this invention is simple to operate and can be directly laid in tailings dams during ore discharge. Multiple geotextile mats are connected via electrode grooves and groove clips. Connections between different electrodes are achieved through built-in electrical wires. Data acquisition devices for each electrode are connected via data cables, transmitting data measured by the data acquisition devices and potential probes to a power supply and acquisition device. This device adjusts different parameters according to actual conditions to achieve drainage intensities. Laying avoids the difficulty of connecting each electrode individually in traditional methods. For large-scale electro-osmotic drainage, only multiple sets of geotextile mats provided by this invention need to be connected. This invention only requires laying in the appropriate locations and connecting the built-in electrical wires and data cables. The power supply and acquisition device can power multiple sets of geotextile mats, and the output voltage, current, and other parameters can be adjusted according to actual needs.

[0029] The geomat with electroosmotic function provided by this invention has a small footprint and is easy to store.

[0030] The geomat with electroosmotic function provided by this invention has electrodes that combine the reinforcement function of the geomat with the electroosmotic function of the electrodes, and can exert a more significant effect than either of the two. The geomat can provide drainage channels and provide reinforcement. The presence of electrodes can limit the deformation of the geomat caused by uneven settlement, thus ensuring the long-term drainage function of the geomat.

[0031] The geomat with electroosmotic function provided by this invention has an EKG electrode portion, which is a copper core coated with a carbon fiber layer. It offers excellent electroosmotic performance, is corrosion-resistant, and is more environmentally friendly and resistant to external interference. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the power acquisition device in this invention;

[0034] Figure 3 This is a schematic diagram of the electrode structure;

[0035] In the diagram: 1. Geomat body; 2. Fixing rod; 3. Electrode; 4. Electrode copper core; 5. Data sensor; 6. Carbon fiber coating; 7. Built-in conductor; 8. Electrode groove; 9. Data logger groove; 10. Groove clip; 11. Data cable; 12. Data port; 13. Connecting nut; 14. Wire plug; 15. Data logger; 16. Potential probe; 17. Cathode port; 18. Anode port; 19. Adjustment knob; 20. Power plug; 21. Data jack; 22. Display screen; 23. Power output switch; 24. Current / voltage switching switch. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] like Figure 1-2 As shown, the present invention provides a geomat with electroosmotic function, comprising:

[0040] A fixing rod 2 is installed on the geomat body 1. The fixing rod 2 is used to connect and fix the electrodes described below. Preferably, its surface has multiple screw holes, allowing for the addition of electrodes as needed in the project, and these screw holes are used to connect and fix the electrodes. For example... Figure 1 As shown, the fixing rod 2 is preferably set near the middle part of the geotextile mat.

[0041] Electrode 3, disposed on the geomat body 1 and fixed to the fixing rod 2, is used to provide electro-osmosis function for the geomat for electro-osmosis drainage, and also serves as the keel of the geomat, limiting the deformation of the geomat. Figure 1 As shown, the electrodes 3 on both sides of the geotextile mat are arranged in a centrally symmetrical manner.

[0042] Electrode copper cores 4 are disposed at both ends of the mat, with threads engraved on the top of the copper cores for connecting the circuit electrode connectors. Preferably, the copper cores of the electrode copper cores 4 are arranged in a spiral shape on one end surface of the electrode 3; the spiral shape is screwed to the connecting nut 13, and the connecting nut 13 is connected to a plug through a wire. The plug is connected to the power supply acquisition device to supply power to the electrode 3.

[0043] The data sensor 5 is used for data docking and transmission at the electrode 3. When the two electrodes 3 are connected, the data sensor 5 of the electrode 3 is also docked to connect the data line 11 in the electrode 3 together.

[0044] A data acquisition unit 15, mounted on the geomat body 1, is used to measure tailings pressure and moisture content and transmit the data to a power supply acquisition device. When the two electrodes 3 are connected, the data sensors 5 of the electrodes 3 are also connected to the data lines 11 within the electrodes 3. The data acquisition unit 15 is preferably located within the acquisition unit groove 9, which is preferably mounted on the fixing rod 2.

[0045] The potential probe 16 is mounted on the collector and is used to measure the current and voltage between the tailings and transmit the data to the power supply and acquisition device.

[0046] like Figure 2 As shown, in this invention, the power acquisition device is equipped with:

[0047] The current / voltage switch button is used to switch between changing the current and voltage.

[0048] Adjustment knob 19 is used to adjust the output voltage and current.

[0049] In this invention, the power acquisition device is further provided with:

[0050] Display screen 22 is used to display tailings pressure, moisture content, and current and voltage between tailings, and to adjust the power supply as needed.

[0051] In this invention, the fixing rod 2 is provided with an internal electrical wire 7 that connects different electrodes 3, and the power supply acquisition device supplies power to different electrodes 3;

[0052] The fixed rod 2 is also equipped with a data line 11, which is used to connect the sensor and the power supply acquisition device. The data line 11 is used to transmit the tailings pressure, moisture content, current and voltage between the tailings measured by the sensor and the potential probe 16 to the power supply acquisition device.

[0053] The geotextile mat with electroosmotic function provided by the present invention can be equipped with multiple electrodes 3, which are connected by built-in wires 7 embedded in the fixing rods 2 and powered by a power acquisition device. The sensors and potential probes on the fixing rods 2 of each geotextile mat can be connected to the data jacks 21 on the power acquisition device via data lines 11 installed in the fixing rods 2 for transmitting data measured by the sensors and potential probes.

[0054] The power acquisition device also has a cathode socket 17 and an anode socket 18 connected to a wire plug 14 for supplying power to the geotextile mat. The power plug 20 on the power acquisition device is used to connect to an external AC power source to supply DC power.

[0055] The geomat of the present invention also has a data port 12 for exporting data of each geomat measurement.

[0056] The power acquisition device also has:

[0057] Display screen 22 shows the data information measured by the sensor and potential probe, and adjusts the power supply as needed.

[0058] Power output switch 23, when clicked, determines whether to start or stop power supply to the grille.

[0059] The power acquisition device adjusts the output voltage and current based on the data measured by the sensor and the potential measuring rod by adjusting the knob 19 to achieve different intensities of electroosmotic drainage.

[0060] The current / voltage switching switch 24 on the power acquisition device is used to switch and change the current and voltage.

[0061] In this invention, the electrode 3 is provided with an electrode groove 8 and a groove buckle 10;

[0062] The groove buckle 10 is disposed on the electrode groove 8, the electrode groove 8 is used to receive the electrode part of another geomat, and the groove buckle 10 is used to snap the electrode part of another geomat.

[0063] After the electrode portions of multiple geomats provided by this invention are connected to the electrode grooves 8 on the electrode 3 of another geomat, they are fixed together by the groove clips 10 on the electrode grooves 8. Then, the built-in wires 7 are used to connect each electrode, and the data cables 11 are used to connect the sensors on each electrode to the power supply and data acquisition device.

[0064] In this invention, the outer surface of the electrode copper core 4 has a carbon fiber coating 6, which is used to slow down the corrosion of the copper core and improve conductivity.

[0065] In this invention, the electrode 3 is an electro-mechanical geosynthetic (EKG) electrode.

[0066] When using this geomat, in order to enhance the stability of the dam and drainage performance, the mat needs to be laid horizontally. Before laying, stones and sharp rocks should be removed.

[0067] During electroosmotic drainage, water flows from the anode to the cathode. Therefore, the anode must be located upstream in the drainage direction, and the cathode downstream. This facilitates the smooth discharge of water from tailings. In this design, the anode and cathode mats are not differentiated or specially treated. The mat connected to the anode carries a positive charge, serving as the starting point for drainage; the same applies to the cathode.

[0068] The present invention also provides a method for using the above-mentioned geotextile mat with electroosmotic function, comprising the following steps:

[0069] 1. When the geotextile mat of this invention is laid horizontally at the corresponding location in the tailings dam, the drainage effect is optimal when there are drainage measures underneath. The EKG electrode portion of the first conductive mat is then inserted into the stainless steel electrode groove 8 of the second conductive mat, aligning the data sensors 5 of the two electrodes 3. At this time, the EKG electrode portion of the second mat is also inserted into the electrode groove 8 of the first mat.

[0070] 2. Snap the buckles of the first and second mats together with the buckles of the other mat, and the mats 1 and 2 are combined into one piece. The wires and data cables 11 inside the fixing rod 2 will also connect the two mats at this time, so there is no need to connect the wires separately.

[0071] 3. Repeat steps 1 and 2 until the mats are laid to the desired extent.

[0072] 4. Fix the data acquisition device 15 into the acquisition device groove 9 at the location where monitoring is required.

[0073] 5. Connect the spiral of the copper core 4 of the EKG electrode of the geomat at the outer end of the geomat assembly to the joint nut and tighten it.

[0074] 6. Because the mat serving as the cathode needs to be laid under the anode to drain the water inside the dam, insert the grid wire plug 14, which serves as the cathode, into the cathode socket 17 of the power supply device.

[0075] 7. After the ore discharge reaches the expected height, continue laying the geotextile mat and repeat step 1.

[0076] Proceed to step 5.

[0077] 8. When this set of mats is set as the anode according to drainage requirements, insert the wire plug 14 of this set of mats into the anode socket 18 of the power supply device.

[0078] 9. Determine the number of geotextile mats to be used as cathodes and anodes based on the actual construction of the tailings dam and drainage requirements. Repeat steps 1-8.

[0079] 10. After the geotextile mat is laid, the electro-osmotic drainage effect will vary under different output voltages and currents. The voltage and current should be set according to the drainage requirements. Rotate the adjustment knob 19 until the voltage value displayed on the screen 22 reaches the preset voltage.

[0080] 11. After the voltage is set, start setting the current. Click the current-voltage switch 24 to switch the setting to current. Rotate the adjustment knob 19 until the current displayed on the display screen 22 reaches the preset maximum output current.

[0081] 12. Use data cable 11 to connect the data port 12 of the geotextile mat outside the tailings dam to the data port 21 of the power acquisition device, so that the data measured by the sensor can be transmitted to the power acquisition device.

[0082] 13. After verifying that the wiring is correct, click the power output switch 23 to supply power to the geotextile mat, and the conductive mat will begin electro-osmotic drainage. Subsequently, adjust the number of plugs and the transmission voltage of the cathode socket 17 and anode socket 18 on the power acquisition device according to the voltage and moisture content information displayed on the display screen 22.

[0083] Therefore, the geotextile mat with electroosmotic function provided by this invention is convenient to lay and prepare, involves fewer procedures, is simple to operate, occupies a small area, and does not change the original structure of the tailings dam. It has high pressure resistance and provides all-around water collection and drainage. Its drainage is more powerful, capable of draining water that traditional equipment cannot. It can monitor the internal conditions of the tailings dam and adjust the drainage intensity according to the actual situation, achieving integrated monitoring and drainage.

[0084] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A geomat with electroosmotic function, characterized in that, include: Fixing rods are installed on the geomat body; Electrodes are disposed on the geomat body and fixed to the fixing rod, used to provide electroosmosis function for the geomat, and also to act as the keel of the geomat to limit the deformation of the geomat; Data sensor, used for data docking and transmission at the electrodes; A data acquisition device, installed on the geomat body, is used to measure tailings pressure and moisture content and transmit the data to a power supply acquisition device. A potential probe, mounted on the data acquisition unit, is used to measure the current and voltage between the tailings and transmit the data to the power supply acquisition device. The electrode has a copper core inside and a carbon fiber protective layer on the outside to slow down the corrosion of the copper core and improve conductivity. One end of the electrode has an exposed copper core with a spiral shape on the surface. The spiral shape is screwed into a connecting nut, which is connected to a plug through a wire. The plug is connected to the power acquisition device to supply power to the electrode. The fixed rod is equipped with built-in wires that connect to different electrodes, and the power supply acquisition device supplies power to the different electrodes. The fixed rod is also equipped with a data line, which is used to connect the sensor and the power supply acquisition device, and to transmit the tailings pressure, moisture content, current and voltage between the tailings measured by the sensor and the potential probe to the power supply acquisition device. The electrode is provided with an electrode groove and a groove buckle; The groove buckle is provided on the electrode groove, the electrode groove is used to receive the electrode part of another geomat, and the groove buckle is used to snap the electrode part of another geomat. The power acquisition device is equipped with: The current / voltage switch button is used to switch between changing the current and voltage. The adjustment knob is used to adjust the output voltage and current. It also includes: The display screen shows the tailings pressure, moisture content, and current and voltage between tailings, and adjusts the power supply as needed.

2. A geomat with electroosmotic function according to claim 1, characterized in that, The fixing rod is provided with a data acquisition device groove, and the data acquisition device is disposed in the data acquisition device groove.

3. A geomat with electroosmotic function according to claim 1, characterized in that, The fixing rod has a screw hole for fixing the electrode.

4. A geomat with electroosmotic function according to any one of claims 1-3, characterized in that, The electrode is an electro-mechanical composite electrode.

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