Geotechnical mat with electroosmosis function

Abstract

The invention provides a geotechnical mat with an electroosmosis function, and belongs to the technical field of geotechnical mats. The geotextile mat comprises a fixing rod arranged on a geotextile mat body; the electrodes are arranged on the geotechnical mat body, are fixed on the fixing rods, are used for providing an electroosmosis function for the geotechnical mat and are also used for serving as keels of the geotechnical mat to limit deformation of the geotechnical mat; the data collector is arranged on the geotechnical mat body and used for measuring the pressure and the water content of the tailings and transmitting the pressure and the water content to the power supply collecting device; and the potential probe is arranged on the data acquisition unit and is used for measuring current and voltage between the tailings and transmitting the current and voltage to the power supply acquisition device. The electrodes and the data collector are arranged on a traditional geotextile mat, and the power supply collecting device is matched, so that the geotextile mat has the electroosmosis function, the drainage strength can be adjusted according to the actual situation, and monitoring-drainage integration is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of geomats, and in particular to a geomat with an electroosmotic function. Background Art

[0002] The number of tailings ponds has gradually decreased, but the problem of tailings accumulation needs to be solved. Mining projects have begun to increase the height and scale of existing tailings ponds. With the continuous advancement of mineral processing technology, tailings are refined and the particle size is reduced. Although the output rate of useful components of the ore is increased, it also increases the difficulty of draining the accumulated tailings.

[0003] Tailings ponds are man-made high-potential energy danger sources. Once a dam breaks, it will cause great harm. The gold infiltration line is the lifeline of the tailings pond. During the rainy season in humid areas, the infiltration line of the tailings pond will remain high. At this time, the probability of dam break will increase by dozens of times compared to usual. The water inside the tailings pond is the main influencing factor of the infiltration line. When the water inside cannot be discharged for a long time and accumulates, the infiltration line will continue to rise, and a dam break will occur after reaching the limit. Traditional drainage measures including drainage pipes and drainage ditches have limited capacity. They have a certain effect on the free water on the surface of the tailings pond, but have a weak effect on the discharge of combined water and water deep in the tailings pond, and cannot fundamentally solve the problem of high infiltration lines.

[0004] Geomats are highly durable, inexpensive and can significantly improve soil strength. They have been widely used in geotechnical engineering, such as roads, foundation treatment, retaining walls and slope reinforcement, and have achieved good results. The grooves on their surface can also be used as drainage channels to improve the drainage capacity of the soil. In order to continue to promote the drainage performance of geomats, it is proposed to give geomats electroosmosis performance and make traditional geomats into conductive geomats with better drainage performance. Summary of the invention

[0005] In view of this, in order to give the traditional geotextile mat electroosmosis performance, the present invention provides a geotextile mat with electroosmosis function. By arranging electrodes and data collectors on the traditional geotextile mat and cooperating with a power supply and collection device, the present invention has electroosmosis function and can adjust the drainage intensity according to actual conditions, thereby realizing monitoring-drainage integration.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A geotextile mat with electroosmosis function, comprising:

[0008] A fixing rod is arranged on the geomat body;

[0009] The electrode is arranged on the geomat body and fixed on the fixing rod, and is used to provide the geomat with an electroosmotic function and also to serve as a keel of the geomat to limit deformation of the geomat;

[0010] A data sensor, used for connecting and transmitting data at the electrodes;

[0011] A data collector is arranged on the geotextile mat body, and is used to measure the pressure and moisture content of the tailings, and transmit the data to the power supply and collection device;

[0012] The potential measuring needle is arranged on the data collector, and is used to measure the current and voltage between the tailings, and transmit the current and voltage to the power supply collection device.

[0013] Preferably, 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 the conductivity. The copper core of one end of the electrode is exposed, and a spiral is formed on the surface; the spiral is screwed to a connecting nut, and the connecting nut is connected to a plug through a wire, and the plug is connected to the power collection device to supply power to the electrode.

[0014] Preferably, the power supply collection device is provided with:

[0015] Current / voltage switch button, used to switch and change current and voltage;

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

[0017] Preferably, it is also provided with:

[0018] The display screen is used to display the tailings pressure, water content, and current and voltage between tailings, and adjust the power supply as needed.

[0019] Preferably, the fixing rod is provided with built-in wires connected to different electrodes, and power is supplied to different electrodes through the power supply collection device;

[0020] A data line is also provided in the fixing rod, and the data line is used to connect the sensor and the power supply collection device, and is used to transmit the tailings pressure, water content, and current and voltage between the tailings measured by the sensor and the potential probe to the power supply collection device.

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

[0022] The groove buckle is arranged on the electrode groove, the electrode groove is used to receive the electrode part of another geotextile mat, and the groove buckle is used to clamp the electrode part of another geotextile mat.

[0023] Preferably, a data collector groove is provided on the fixing rod, and the data collector is arranged in the data collector groove.

[0024] Preferably, the fixing rod is provided with a screw hole for fixing the electrode.

[0025] Preferably, the electrodes are electrodynamic geosynthetic electrodes.

[0026] The geotextile mat with electroosmosis function provided by the present invention has the electroosmosis function by arranging electrodes and sensors on the traditional geotextile mat and cooperating with the power supply and collection device, and can adjust the drainage intensity according to the actual situation to realize the integration of monitoring and drainage. Compared with the prior art, it has the following beneficial effects:

[0027] The geotextile mat with electroosmosis function provided by the present invention is easy to assemble, has simple and effective technology, and is environmentally friendly. Different modes can be selected to adjust the drainage intensity according to the water content inside the tailings pond. Compared with traditional drainage pipes, drainage ditches and other measures, the drainage is more thorough, and the free water that cannot be solved by them can be discharged. It has little impact on the tailings pond structure and can significantly enhance the bearing capacity and stability of the dam body. Compared with traditional geotextile mats, the present invention has less deformation when facing uneven settlement of tailings. The drainage device described in the present invention is suitable for drainage of fine-grained tailings, and can provide new ideas and solutions for the safety of tailings ponds.

[0028] The geomat with electroosmosis function provided by the present invention is easy to operate and can be directly laid when the tailings pond is unloading. The connection of multiple geomats can be achieved through electrode grooves and groove buckles, and the connection between different electrodes can be achieved through built-in electrical wires. The data collectors of each electrode are connected through data cables, and the data information measured by the data collector and the potential probe is transmitted to the power supply and collection device. The power supply and collection device adjusts different parameters according to actual conditions to achieve drainage of different intensities. The difficulty of wiring one by one between traditional electrodes is avoided during laying. When facing large-scale electroosmosis drainage, it is only necessary to connect multiple groups of geomats provided by the present invention. The present invention only needs to be laid at the corresponding position and connected with the built-in electrical wires and data cables. The power supply and collection device can supply power to multiple groups of geomats, and can adjust the output voltage, current and other parameters of the equipment according to actual needs.

[0029] The geotextile mat with electroosmosis function provided by the present invention occupies a small area and is convenient to store.

[0030] The geomat with electroosmotic function provided by the present invention has electrodes arranged thereon which have both the reinforcement function of the geomat and the electroosmotic function of the electrodes, and can exert a more significant function than the two. The geomat can provide a drainage channel and exert a reinforcement function. The presence of the electrodes can limit the deformation of the geomat caused by uneven settlement, and exert the drainage function of the geomat for a long time.

[0031] The geotechnical mat with electroosmosis function provided by the present invention has an electrode part of EKG, which is a copper core coated with a carbon fiber layer, has good electroosmosis effect, is corrosion-resistant, and is more environmentally friendly and resistant to external interference. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0033] Figure 2 It is a structural schematic diagram of the power supply collection device in the present invention;

[0034] Figure 3 Schematic diagram of electrode structure;

[0035] In the figure, 1. geomat body; 2. fixing rod; 3. electrode; 4. electrode copper core; 5. data sensor; 6. carbon fiber coating; 7. built-in electrical conductor; 8. electrode groove; 9. collector groove; 10. groove buckle; 11. data line; 12. data socket; 13. connecting nut; 14. wire plug; 15. data collector; 16. potential measuring needle; 17. cathode socket; 18. anode socket; 19. adjustment knob; 20. power plug; 21. data jack; 22. display screen; 23. power output switch; 24. current / voltage switching switch. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

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

[0040] The fixing rod 2 is arranged on the geotextile mat body 1. The fixing rod 2 is used to connect and fix the following electrodes. The surface of the fixing rod 2 is preferably provided with a plurality of screw holes. Electrodes can be added later according to the needs of the project, and the electrodes can be connected and fixed through the screw holes. Figure 1 As shown, the fixing rod 2 is preferably arranged near the middle part of the geotextile mat.

[0041] The electrode 3 is arranged on the geomat body 1 and fixed on the fixing rod 2, and is used to provide the geomat with an electroosmotic function for electroosmotic drainage, and also to serve as the keel of the geomat to limit the deformation of the geomat. Figure 1 As shown, the electrodes 3 on both sides of the geomat are arranged symmetrically to the center.

[0042] The electrode copper core 4 is arranged at both ends of the mat, and the top of the copper core is engraved with a thread, which is used to connect the electrode connector of the circuit. Preferably, the copper core of the electrode copper core 4 is arranged on the surface of one end of the electrode 3 to form a spiral; the spiral is screwed with the connecting nut 13, and the connecting nut 13 is connected to the plug through a wire, and the plug is connected to the power collection device to supply power to the electrode 3.

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

[0044] The data collector 15 is arranged on the geomat body 1, and is used to measure the tailings pressure and moisture content, and transmit the data to the power supply collection device. When the two electrodes 3 are connected, the data sensor 5 of the electrode 3 also connects the data line 11 in the electrode 3 together. The data collector 15 is preferably arranged in the collector groove 9, and the collector groove 9 is preferably arranged on the fixing rod 2.

[0045] The potential measuring needle 16 is arranged on the collector and is used to measure the current and voltage between the tailings and transmit them to the power supply collection device.

[0046] like Figure 2 As shown, in the present invention, the power supply collection device is provided with:

[0047] Current / voltage switch button, used to switch and change current and voltage;

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

[0049] In the present invention, the power supply collection device is also provided with:

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

[0051] In the present invention, the fixing rod 2 is provided with a built-in electric wire 7 connected to different electrodes 3, and the different electrodes 3 are powered by the power supply collection device;

[0052] A data line 11 is also provided in the fixing rod 2, and the data line 11 is used to connect the sensor and the power supply collection device, and is used to transmit the tailings pressure, water content, and current and voltage between the tailings measured by the sensor and the potential probe 16 to the power supply collection device.

[0053] The geotextile mat with electroosmosis function provided by the present invention can be provided with a plurality of electrodes 3, which are connected by built-in electric wires 7 built into the fixed rods 2, and powered by the power supply and collection device. The sensors and potential measuring needles on the fixed rods 2 on each geotextile mat can be connected to the data jack 21 on the power supply and collection device through the data line 11 set in the fixed rods 2, for transmitting the data measured by the sensors and the potential measuring needles.

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

[0055] The geotextile mat of the present invention also has a data socket 12 for exporting the data measured by each geotextile mat.

[0056] The power supply collection device also has:

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

[0058] The power output switch 23 is used to start / stop power supply to the grid after being clicked.

[0059] The power supply collection device adjusts the output voltage and current through the adjustment knob 19 according to the data measured by the sensor and the potential measuring rod to achieve electroosmotic drainage of different intensities.

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

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

[0062] The groove buckle 10 is arranged 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 clamp the electrode part of another geomat.

[0063] After the electrode parts of multiple geomats provided by the present invention are docked to the electrode groove 8 on the electrode 3 of another geomat, they are connected and fixed by the groove buckle 10 on the electrode groove 8. Then, the built-in electrical wire 7 is used to connect the electrodes, and the data line 11 is used to connect the sensors on the electrodes to the power supply collection device.

[0064] In the present 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 the conductivity.

[0065] In the present invention, the electrode 3 is an electrokinetic geosynthetic (EKG) electrode.

[0066] When using this product's geotextile mat, in order to enhance the stability of the dam and drainage performance, the mat needs to be laid horizontally, and gravel, sharp stones, etc. need to be cleared before laying.

[0067] During electroosmosis drainage, water flows from the anode to the cathode, so the anode must be set upstream of the drainage direction and the cathode downstream of the drainage direction, which is conducive to the smooth discharge of water in the tailings. This mat does not distinguish or specially treat the anode and cathode mats when designing. The mat connected to the anode of the power supply carries a positive charge as the starting point of drainage, and the same applies to the cathode.

[0068] The present invention also provides a method for using the geotextile mat having electroosmosis function, comprising the following steps:

[0069] 1. Take the geotextile mat of the present invention and lay it horizontally at the corresponding position of the tailings pond. When there are drainage measures below, the drainage effect can be best achieved. Buckle the EKG electrode part of the first conductive mat into the stainless steel electrode groove 8 of the second conductive mat, and align the data sensors 5 of the two electrodes 3. At this time, the EKG electrode part of the second mat is also buckled into the electrode groove 8 of the first mat.

[0070] 2. Buckle the buckles of the first and second mats together with the buckles of the other mats, and the No. 1 and No. 2 mats are combined into one whole piece. The wires and data cables 11 in the fixing rod 2 also connect the two mats at this time, so no additional wiring is required.

[0071] 3. Repeat steps 1 and 2 until the mat is laid to the desired size.

[0072] 4. Fix the data collector 15 in the collector groove 9 at the location that needs to be monitored.

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

[0074] 6. The water inside the dam body is drained after laying the mat that acts as the cathode under the anode. The grid wire plug 14 that acts as the cathode is inserted into the cathode socket 17 of the power supply device.

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

[0076] Go to step 5.

[0077] 8. When the mat set is set as an anode according to drainage needs, the wire plug 14 of the mat set is inserted into the anode socket 18 of the power supply device.

[0078] 9. According to the actual construction of the tailings pond and the drainage requirements, determine the number of geomats used as cathodes and anodes. Repeat steps 1-8.

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

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

[0081] 12. Use the data cable 11 to connect the data socket 12 of the geotextile mat outside the tailings pond to the data socket 21 of the power supply collection device, and the data measured by the sensor is transmitted to the power supply collection device.

[0082] 13. After checking that the line is correct, click the power output switch 23 to transmit power to the geotextile mat, and the conductive mat starts electroosmosis drainage. Subsequently, according to the voltage and moisture content information displayed on the display screen 22, the number of plugs of the cathode socket 17 and the anode socket 18 on the energy collection device and the size of the transmission voltage are adjusted.

[0083] Therefore, the geotextile mat with electroosmosis function provided by the present invention is easy to prepare for laying, has fewer procedures and simple operation, occupies a small area, and does not change the original structure of the tailings pond. It has high pressure resistance and has all-round water collection and drainage functions. It has stronger drainage and can drain water that traditional equipment cannot drain. It can monitor the internal situation of the tailings pond and adjust the drainage intensity according to the actual situation. It realizes monitoring-drainage integration.

[0084] The above are only preferred specific embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A geomat with electroosmotic function, characterized in that: include: A fixing rod is arranged on the geomat body; The electrode is arranged on the geomat body and fixed on the fixing rod, and is used to provide the geomat with an electroosmotic function and also to serve as a keel of the geomat to limit deformation of the geomat; A data sensor, used for connecting and transmitting data at the electrodes; A data collector is arranged on the geotextile mat body, and is used to measure the pressure and moisture content of the tailings, and transmit the data to the power supply and collection device; The potential measuring needle is arranged on the data collector, and is used to measure the current and voltage between the tailings, and transmit the current and voltage to the power supply collection device.

2. The geotextile mat with electroosmosis function according to claim 1, characterized in that: 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 the conductivity. The copper core at one end of the electrode is exposed, and a spiral is formed on the surface; the spiral is screwed to a connecting nut, and the connecting nut is connected to a plug through a wire, and the plug is connected to the power collection device to supply power to the electrode.

3. The geomat with electroosmosis function according to claim 1, characterized in that: The power supply collection device is provided with: Current / voltage switch button, used to switch and change current and voltage; The adjustment knob is used to adjust the output voltage and current.

4. The geomat with electroosmosis function according to claim 3, characterized in that: Also provided are: The display screen is used to display the tailings pressure, water content, and current and voltage between tailings, and adjust the power supply as needed.

5. The geotextile mat with electroosmosis function according to claim 1, characterized in that: The fixing rod is provided with built-in wires connected to different electrodes, and power is supplied to different electrodes through the power supply collection device; A data line is also provided in the fixing rod, and the data line is used to connect the sensor and the power supply collection device, and is used to transmit the tailings pressure, water content, and current and voltage between the tailings measured by the sensor and the potential probe to the power supply collection device.

6. The geomat with electroosmosis function according to claim 1, characterized in that: The electrode is provided with an electrode groove and a groove buckle; The groove buckle is arranged on the electrode groove, the electrode groove is used to receive the electrode part of another geotextile mat, and the groove buckle is used to clamp the electrode part of another geotextile mat.

7. The geomat with electroosmosis function according to claim 1, characterized in that: The fixing rod is provided with a data collector groove, and the data collector is arranged in the data collector groove.

8. The geomat with electroosmosis function according to claim 1, characterized in that: The fixing rod is provided with a screw hole for fixing the electrode.

9. A geomat with electroosmotic function according to any one of claims 1 to 8, characterized in that: The electrodes are electrodynamic geosynthetics electrodes.

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