Reservoir leakage detection and repair equipment and method

Abstract

The invention discloses reservoir leakage detecting and repairing equipment and method, and relates to the field of dam body repairing devices. Reservoir leakage detecting and repairing equipment comprises a repairing liquid storage tank, repairing liquid grouting equipment and a grouting repairing pipe, the repairing liquid storage tank is connected with the liquid inlet end of the repairing liquid grouting equipment, and the grouting repairing pipe is connected with the liquid outlet end of the repairing liquid grouting equipment; the side grouting repair hole is formed in the side face, close to the bottom end, of the grouting repair pipe and communicates with the liquid conveying pipeline in the grouting repair pipe; the multiple sets of air bags are annularly installed on the grouting repair pipe at equal intervals, and the multiple sets of air bags are located on the upper side and the lower side of the side grouting repair hole correspondingly; through the arrangement of the air bag, auxiliary inspection can be carried out on the crack position in the grouting repair hole, meanwhile, the upper space and the lower space of the side grouting repair hole can be blocked, grouting can be conveniently and intensively carried out on part of cracks, and incomplete grouting repair caused by insufficient pressure is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of dam repair devices, and specifically relates to a reservoir leakage detection and repair device and method. Background Art

[0002] During the operation of a reservoir, the leakage problem of the dam has always been a key factor affecting the safety and stability of the reservoir. Currently, for the repair of reservoir dam leakage, grouting is usually used to seal the cracks in the reservoir dam.

[0003] In the existing grouting method, a drilling device is generally used to drill vertical or inclined grouting holes on the surface of the dam, so that the drilled grouting holes are connected to the cracks. Then, by inserting the grouting equipment on the surface of the grouting hole and continuously injecting a pressure-bearing repair liquid, through this repair method, if there are multiple interconnected crack holes in the grouting hole, the injected repair liquid is extremely likely to show the phenomenon of slurry channeling at this time, resulting in uneven distribution of the repair liquid, and some cracks cannot be effectively filled, greatly reducing the repair effect.

[0004] Moreover, when there are multiple cracks in the grouting hole but not at the same height, the repair liquid entering the cracks is reduced again at this time, and the repair liquid cannot fully penetrate into the cracks due to insufficient pressure, affecting the repair quality. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a dam repair device that can overcome or at least partially solve the above problems.

[0006] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is: a reservoir leakage detection and repair device, including a repair liquid storage tank and a repair liquid grouting device, the repair liquid storage tank is connected to the liquid inlet end of the repair liquid grouting device, and further includes: A grouting repair pipe, the grouting repair pipe is connected to the liquid outlet end of the repair liquid grouting device; Side grouting repair holes, arranged on the side of the grouting repair pipe near the bottom end and communicated with the liquid delivery pipeline inside the grouting repair pipe; Multiple groups of air bags, installed on the grouting repair pipe in a ring shape at equal intervals, and multiple groups of the air bags are respectively located on the upper and lower sides of the side grouting repair holes; A pressure sensor, arranged inside the air bag, used to detect the pressure change of the air pressure inside the air bag; The crack position on the reservoir dam is detected by a radar detection device, and then a punching device is used to punch grouting repair holes near the concrete dam crack. A plurality of grouting repair holes are evenly arranged on the left and right along the crack, and the punching depth penetrates the deep crack. Subsequently, a grouting repair pipe is inserted into the grouting repair hole, and the outer diameter of the ring formed by the inflation of multiple groups of airbags arranged in a ring is larger than the inner hole of the grouting repair hole. At this time, if the airbag touches the crack area, since the crack area is empty and the airbag is in a compressed state at this time, it will expand. Subsequently, the pressure sensor detects the pressure change and inputs the information into the computer to record the crack position and size until it is inserted to the bottom, and then moves upward from the bottom. The airbag seals the upper and lower parts of the side grouting repair holes, and then the crack area is repaired by grouting through the side grouting repair holes.

[0007] To facilitate the plugging of larger cracks, further, a sliding groove is provided on the grouting repair pipe, and a plurality of sliding rings are slidably connected to the sliding groove. The airbag is installed on the sliding ring, and an electromagnet I and an electromagnet II are installed on the sliding ring. The sliding ring can be fixedly connected to the grouting repair pipe through the electromagnet I and the electromagnet II, and by changing the magnetic poles between the electromagnet I and the electromagnet II, different sliding rings can approach and move away from each other under the action of opposite-sex attraction and same-sex repulsion to adjust the position of the sliding ring on the grouting repair pipe; After the grouting repair pipe is inserted into the grouting repair hole to detect the crack position, for some large cracks, by closely fitting a plurality of sliding rings, the longitudinal length of the annularly installed airbag can be increased, thereby plugging the larger cracks. At this time, when grouting repair is carried out, the grouting repair liquid can be concentrated and enter through the middle and lower regions of the large crack.

[0008] To facilitate the auxiliary plugging of the grouting hole and reduce the repair liquid flowing back from the crack, even further, an opening is provided at the bottom of the grouting repair pipe, and a pipe bottom sealing plate is threadedly connected to the opening. A bottom grouting repair hole is opened on the pipe bottom sealing plate, and a solenoid valve is installed on the bottom grouting repair hole.

[0009] Even further, a support frame is also provided, and a hydraulic device is fixedly connected to the support frame. The grouting repair pipe is installed on the telescopic end of the hydraulic device.

[0010] Further, an installation plate is fixedly connected to the telescopic end of the hydraulic device, and a clamping plate is installed on the installation plate through bolts. There is an installation hole in the middle after the installation plate and the clamping plate are spliced. The grouting repair pipe is installed in the installation hole between the installation plate and the clamping plate.

[0011] Even further, an installation groove is provided in the installation hole, and an installation ring matching the installation groove is provided on the grouting repair pipe.

[0012] Furthermore, an air nozzle is installed on the airbag.

[0013] In order to fill the side gaps of the airbag, further, a sealing lip is provided on the side of the airbag.

[0014] A method for detecting and repairing reservoir leakage, which is used for a reservoir leakage detection and repair device, includes the following operating steps: Step 1: Detect the position of cracks on the reservoir dam through a radar detection device; Step 2: Use a drilling device to drill grouting repair holes near the cracks in the concrete dam. A plurality of grouting repair holes are arranged evenly along the left and right of the cracks, and the drilling depth penetrates the deep cracks; Step 3: Install a support frame, install a grouting repair pipe on the support frame, and connect it to the grouting repair equipment; Step 4: Through the hydraulic device on the support frame, slowly insert the grouting repair pipe into the grouting repair hole, and record the position and size of the cracks through the change of the pressure sensor in the airbag until it is inserted to the bottom of the grouting repair hole; Step 5: Adjust the position of the upper side grouting repair hole of the grouting repair pipe through the hydraulic device so that it can be aligned with the cracks on the same plane. At this time, the airbag plays a role of isolation. Then, suck out the high-polymer repair liquid in the repair liquid storage tank through the repair liquid grouting equipment, and then discharge it through the side grouting repair hole to grout and repair the cracks; Step 6: Adjust the grouting position through the hydraulic device to grout and repair the remaining cracks above; Step 7: After the grouting repair is completed, seal the grouting repair holes, and repair and seal the remaining grouting repair holes in sequence.

[0015] Furthermore, the high-polymer repair liquid is prepared by mixing A-component resin raw materials and B-component curing agents; Among them, the A-component resin raw materials are as follows: Low-viscosity flexible asphalt W200: 500 kg, Aromatic oil for environmental protection rubber: 100 kg, Rosin polyester polyol JC-380: 80 kg, Wanenate PM200: 270 kg, Dibutyltin dilaurate: 1 kg, Auxiliary agent: 49 kg; B-component curing agent: TMR-2; The preparation process is as follows: Add 500k of low-viscosity flexible asphalt W200 and 100kg of environmentally friendly rubber aromatic oil into a clean vacuum reactor, heat it to 120°C, evacuate for 2 hours to remove the moisture inside. When the moisture content is below one-thousandth, stop evacuating. Cool down to 80°C, add 80kg of rosin polyester polyol JC-380 and 270kg of polyphenylmethane polyisocyanate wannenate PM200, and stir well. Gradually add 1kg of dibutyltin dilaurate catalyst with a peristaltic pump, and at the same time add 49kg of auxiliary additives. Keep the temperature at 80°C, and then react fully for 2 hours under stirring conditions to form the final product. Under nitrogen conditions, carry out packaging and storage. Then, before grouting repair, heat the prepared component A resin to 120°C, and then premix it with component B curing agent according to a mass ratio of 100:0.05 - 0.1, and inject it into the repair fluid storage tank.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: Through the setting of the airbag, the present invention can assist in inspecting the crack positions in the grouting repair holes, and at the same time can block the upper and lower spaces of the side grouting repair holes, facilitating the centralized grouting of a part of the cracks, and reducing the incomplete grouting repair caused by insufficient pressure. At the same time, by grouting part of the cracks one by one from bottom to top, compared with the traditional method of directly injecting the repair fluid into the grouting repair holes, it can reduce the cross-linking that may exist between multiple crack holes, and thus reduce the phenomenon of slurry leakage that is likely to occur during the grouting process, facilitating the repair of reservoir concrete cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings: Figure 1 is the structural schematic diagram of a reservoir leakage detection and repair device proposed by the present invention Figure 1 ; Figure 2 is the structural schematic diagram of a reservoir leakage detection and repair device proposed by the present invention Figure 2 ; Figure 3 is the structural schematic diagram of the support frame, hydraulic device, and grouting repair pipe in a reservoir leakage detection and repair device proposed by the present invention; Figure 4 is a reservoir leakage detection and repair device proposed by the present invention Figure 3 The structural schematic diagram of part A therein; Figure 5 is the structural schematic diagram of the grouting repair pipe in a reservoir leakage detection and repair device proposed by the present invention; Figure 6A reservoir leakage detection and repair device proposed by the present invention Figure 5 Schematic structural diagram of part B in it; Figure 7 A reservoir leakage detection and repair device proposed by the present invention Figure 6 Schematic structural diagram of part C in it; Figure 8 Schematic structural diagram of the mounting ring, electromagnet one, and electromagnet two in a reservoir leakage detection and repair device proposed by the present invention.

[0018] In the figure: 1. Repair liquid storage tank; 2. Repair liquid grouting device; 3. Support frame; 301. Hydraulic device; 302. Mounting plate; 303. Clamping plate; 4. Grouting repair pipe; 401. Side grouting repair hole; 402. Chute; 403. Sliding ring; 404. Pipe bottom sealing plate; 405. Bottom grouting repair hole; 5. Airbag; 501. Air nozzle; 502. Sealing lip; 6. Pressure sensor; 701. Electromagnet one; 702. Electromagnet two. Specific embodiments

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0020] Embodiment: Refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , a reservoir leakage detection and repair device and method, including a repair liquid storage tank 1 and a repair liquid grouting device 2. The repair liquid storage tank 1 is connected to the liquid inlet end of the repair liquid grouting device 2, and further includes: a grouting repair pipe 4, the grouting repair pipe 4 is connected to the liquid outlet end of the repair liquid grouting device 2; side grouting repair holes 401 are provided on the side of the grouting repair pipe 4 near the bottom end and are communicated with the liquid delivery pipeline inside the grouting repair pipe 4; multiple groups of airbags 5 are installed on the grouting repair pipe 4 at equal intervals in a ring shape, and multiple groups of airbags 5 are respectively located on the upper and lower sides of the side grouting repair holes 401; a pressure sensor 6 is provided inside the airbag 5 for detecting the pressure change of the air pressure inside the airbag 5.

[0021] Through a radar detection device, a ground-penetrating radar of model LXY-GPR01 can be used as the radar equipment to quickly detect the positions of cracks on the reservoir dam, and it is convenient to move. Then, through a drilling device, an electric drill can be used as the drilling device. For some deeper cracks, a hydraulic drilling device, such as a hydraulic anchor drill, can be used. The hydraulic anchor drill is used to drill grouting repair holes near the cracks in the concrete dam, and the drilling depth penetrates the deep cracks. And it can meet the requirement that after the grouting repair pipe 4 is inserted, the side grouting repair holes 401 can face the cracks and will not be blocked by the airbag 5, so that grouting repair cannot be carried out. Subsequently, the grouting repair pipe 4 is inserted into the grouting repair hole, and the outer diameter of the ring formed by the inflation of multiple groups of airbags 5 arranged in a ring is larger than the inner hole of the grouting repair hole. At this time, if the airbag 5 touches the crack area, since the airbag 5 is in a compressed state at this time, it will expand into the crack. Subsequently, the pressure sensor 6 detects the pressure change and inputs the information into the computer to record the position and size of the crack until it is inserted to the bottom, and then moves upward from the bottom. The airbag 5 seals the upper and lower parts of the side grouting repair holes 401 to form a relatively sealed space. Subsequently, through the side grouting repair holes 401 in this relatively sealed space, the crack area is grouted and repaired.

[0022] Since a hydraulic anchor drill is used to drill the grouting repair holes, the inner diameter of the grouting repair holes is relatively smooth at this time. Then, when the grouting repair pipe 4 is inserted into the grouting repair hole, the airbag 5 on the grouting repair pipe 4 will be subject to less frictional resistance. Therefore, the pressure value in the airbag 5 is relatively stable and even does not change. Specifically, a threshold can be set. The value within the threshold can be considered as the friction generated during movement. This threshold should first be obtained by moving in a smooth pipe, which is a cement pipe, and the inner wall of the pipe is smooth after being drilled by a drilling device. Then, during the movement, the change range of the air pressure in the airbag 5 during normal movement is obtained, and through multiple experiments with different concretes for verification, balanced data is obtained as the threshold. Finally, during use, the fluctuations within the threshold can be mutually verified with the three-dimensional stereogram previously obtained by radar detection through the computer to determine whether it is a crack, and finally, whether to carry out grouting repair is selected.

[0023] The material of the airbag 5 can be silicone rubber or polyurethane material, and some polytetrafluoroethylene coatings are applied on the surface for long-term use.

[0024] A more optimal implementation method is as Figure 5 、 Figure 6 、 Figure 8As shown, a chute 402 is provided on the grouting repair pipe 4, and a plurality of sliding rings 403 are slidably connected to the chute 402. The airbag 5 is installed on the sliding ring 403. An electromagnet 701 and an electromagnet 702 are installed on the sliding ring 403. The sliding ring 403 can be fixedly connected to the grouting repair pipe 4 through the electromagnet 701 and the electromagnet 702. And through the change of the magnetic poles between the electromagnet 701 and the electromagnet 702, different sliding rings 403 can approach and move away from each other under the action of opposite-sex attraction and same-sex repulsion, so as to adjust the position of the sliding ring 403 on the grouting repair pipe 4.

[0025] After inserting the grouting repair pipe 4 into the grouting repair hole to detect the crack position, for some large cracks, such as cracks with a long longitudinal strip shape on the surface in contact with the grouting repair hole, because these cracks are long, when grouting and repairing at this time, the pressure of the repair fluid will be dispersed, and these cracks are mostly connected subsequently, and it is easy to occur the phenomenon of slurry leakage during grouting due to mutual connection. At this time, the electromagnets 701 and 702 on the two sliding rings 403 close to the side grouting repair hole 401 are of the same magnetic pole, and then the magnetism of the electromagnet 701 on the sliding ring 403 above or below is reduced. At this time, the connection between this sliding ring 403 and the grouting repair pipe 4 will be relatively reduced and not so tight. At the same time, the magnetism is adjusted to the opposite magnetism. At this time, through opposite-sex attraction, this group of sliding rings 403 can approach the position of the side grouting repair hole 401 until they come into contact. Similarly, the remaining sliding rings 403 are made to approach each other. In this way, multiple groups of sliding rings 403 can be closely attached, and the longitudinal length of the annularly installed airbag 5 can be increased, so as to block larger cracks. When grouting and repairing at this time, the grouting repair fluid can be concentrated to enter through the middle and lower regions of the large crack. Subsequently, the large combined airbag 5 can be continuously used to fill the crack. Initially, the large combined airbag 5 is not used to detect the crack position. The smaller airbag 5 can come into contact with the crack and then change, while it is more difficult for the larger airbag 5 to detect the crack position.

[0026] The setting of the two electromagnets is to reduce the interference of itself by the electromagnets in other positions when approaching or moving away from each other through magnetism. At this time, one of the electromagnets is used to stabilize its own position, and the other is used to control the magnetic pole. Then, through the electromagnet that controls the magnetic pole, it cooperates with the electromagnets on the sliding rings 403 above or below. They approach each other through opposite magnetism or move away through the same magnetism.

[0027] Specifically, when detecting the crack position, if there is a long crack, the lowest airbag 5 will come into contact with the crack at this time. Subsequently, the pressure value of this airbag 5 changes. When a single small airbag 5 contacts the crack, the local pressure drops or the deformation amount is abnormal. For example, if the pressure of the left small airbag 5 suddenly drops, the circumferential position of the crack can be located, which is at the 3 o'clock direction on the left side of the pipeline at the crack position. The deformation of multiple adjacent small airbags 5 is coordinated. For example, if the expansion rate of 3 consecutive small airbags 5 exceeds the threshold, the circumferential extension range of the crack can be judged. The crack surrounds the pipeline by 120°. At the same time, through the pressure difference between different axial airbag 5 groups, such as the pressure of the upper airbag 5 is stable and the pressure of the lower airbag 5 drops suddenly, the axial position of the crack can be located. For example, it is 20 cm away from the pipe orifice. Combining the deformation amounts of multiple axial airbag 5 groups, the vertical height of the crack is inverted. For example, the expansion rate of the lower airbag 5 is 15% and that of the upper airbag 5 is 5%, and the crack height is inferred to be about 5 cm.

[0028] A further implementation manner is as Figure 6 、 Figure 7 shown, an opening is provided at the bottom of the grouting repair pipe 4, and a pipe bottom sealing plate 404 is threadedly connected to the opening. A bottom grouting repair hole 405 is provided on the pipe bottom sealing plate 404, and an electromagnetic valve is installed on the bottom grouting repair hole 405.

[0029] Through the setting of the bottom grouting repair hole 405, when grouting and plugging the crack above the grouting repair hole, in order to reduce the backflow of the repair fluid in the crack caused by the hollow of the grouting repair hole, when the grouting repair pipe 4 moves upward at this time, the electromagnetic valve at the bottom is opened, and the grouting repair hole is filled through the bottom grouting repair hole 405. At this time, it is preferably to also set an electromagnetic valve at the side grouting repair hole 401 to avoid the retention of the repair fluid in the relatively sealed space formed by the airbag 5.

[0030] As Figure 1 、As shown in 2、 Figure 3 、 Figure 4 shown, there is also provided: a support frame 3, a hydraulic device 301 is fixedly connected to the support frame 3, the grouting repair pipe 4 is installed on the telescopic end of the hydraulic device 301, an installation plate 302 is fixedly connected to the telescopic end of the hydraulic device 301, a clamping plate 303 is installed on the installation plate 302 through bolts. There is an installation hole in the middle after the installation plate 302 and the clamping plate 303 are spliced. The grouting repair pipe 4 is installed in the installation hole between the installation plate 302 and the clamping plate 303. An installation groove is provided in the installation hole, and an installation ring matching the installation groove is provided on the grouting repair pipe 4.

[0031] Through the setting of the installation plate 302 and the clamping plate 303, the grouting repair pipe 4 can be quickly installed.

[0032] A more optimal implementation manner is as Figure 7As shown, an air nozzle 501 is installed on the airbag 5, and a sealing lip 502 is provided on the side of the airbag 5.

[0033] The setting of the air nozzle 501 facilitates the replenishment of the gas inside the airbag 5. Before use, the gas in the airbag 5 is replenished to the same air pressure range through an air pump.

[0034] The sealing lip 502 is used to fill the gaps on the side of the airbag 5 to reduce gas leakage.

[0035] A method for detecting and repairing reservoir leakage, which is used for a reservoir leakage detection and repair device, includes the following operation steps: Step 1: Detect the position of cracks on the reservoir dam through a radar detection device; Step 2: Use a drilling device to drill grouting repair holes near the cracks in the concrete dam. A plurality of grouting repair holes are evenly arranged on the left and right along the cracks, and the drilling depth penetrates the deep cracks; Step 3: Install the support frame 3, install the grouting repair pipe 4 on the support frame 3, and connect it to the grouting repair equipment; Step 4: Through the hydraulic device 301 on the support frame 3, slowly insert the grouting repair pipe 4 into the grouting repair hole, and record the position and size of the cracks through the change of the pressure sensor 6 in the airbag 5 until it is inserted to the bottom of the grouting repair hole; Step 5: Adjust the position of the side grouting repair hole 401 on the upper side of the grouting repair pipe 4 through the hydraulic device 301 so that it can be aligned with the cracks in the same plane. At this time, the airbag 5 plays a role of isolation. Then, suck out the high-polymer repair liquid in the repair liquid storage tank 1 through the repair liquid grouting equipment 2, and then discharge it through the side grouting repair hole 401 to grout and repair the cracks; Step 6: Adjust the grouting position through the hydraulic device 301 to grout and repair the remaining cracks above; Step 7: After the grouting repair is completed, block the grouting repair holes, and sequentially repair and block the remaining grouting repair holes.

[0036] The high-polymer repair liquid is prepared by mixing component A resin raw material and component B curing agent; Among them, the component A resin raw material is as follows: Low-viscosity flexible asphalt W200: 500 kg, Aromatic oil for environmental protection rubber: 100 kg, Rosin polyester polyol JC-380: 80 kg, Wanenate PM200: 270 kg, Dibutyltin dilaurate: 1 kg, Auxiliary agent: 49 kg; Component B curing agent: TMR-2; The preparation process is as follows: 1. Add 500 kg of low-viscosity flexible asphalt W200 and 100 kg of environmentally friendly rubber aromatic oil into a clean vacuum reactor, heat to 120 °C, evacuate for 2 h to remove the moisture inside. When the moisture content is below one-thousandth, stop evacuating; 2. Cool down to 80 °C, add 80 kg of rosin polyester polyol JC-380 and 270 kg of polyphenylmethane polyisocyanate wanenate PM200, and stir evenly; 3. Gradually add 1 kg of dibutyltin dilaurate catalyst with a peristaltic pump, and at the same time add 49 kg of auxiliary additives. Keep the temperature at 80 °C, and then react fully for 2 h under stirring conditions to form the final product. Under nitrogen conditions, carry out packaging and storage; Then, before grouting repair, heat the prepared Component A resin to 120 °C, and then premix it with Component B curing agent in a mass ratio of 100:0.05 - 0.1, and inject it into the repair liquid storage tank 1.

[0037] Through the setting of the airbag 5, the present invention can assist in inspecting the crack positions in the grouting repair holes, and at the same time can block the upper and lower spaces of the side grouting repair holes 401, facilitating centralized grouting of some of the cracks and reducing the incomplete grouting repair caused by insufficient pressure; At the same time, by grouting one crack by one from bottom to top, compared with the traditional method of directly injecting the repair liquid into the grouting repair hole, it can reduce the possible mutual connection between multiple crack holes, and thus reduce the phenomenon of slurry leakage that is likely to occur during the grouting process, facilitating the repair of reservoir concrete cracks.

[0038] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications into equivalent embodiments using the technical content prompted above within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A reservoir leakage detection and repair device, comprising a repair fluid storage tank and a repair fluid grouting device, the repair fluid storage tank is connected to the liquid inlet end of the repair fluid grouting device, and is characterized in that, It also includes: A grouting repair pipe, which is connected to the liquid outlet end of the grouting repair liquid equipment; Side grouting repair holes, which are arranged on the side of the grouting repair pipe near the bottom end and are communicated with the liquid conveying pipeline inside the grouting repair pipe; Multiple groups of airbags, which are installed on the grouting repair pipe at equal intervals in a ring shape, and the multiple groups of airbags are respectively located on the upper and lower sides of the side grouting repair holes; A pressure sensor, which is arranged inside the airbag and is used to detect the pressure change inside the airbag; During detection, the grouting repair pipe is inserted into the grouting repair hole. After inflating the multiple groups of airbags arranged in a ring shape, the airbags are attached to the inner wall of the grouting repair hole. The grouting repair pipe drives the airbags to move towards the bottom of the grouting repair hole. The pressure sensor detects the pressure change inside the airbag to detect the crack position until it is inserted to the bottom of the grouting repair hole. During grouting, the grouting repair pipe moves from bottom to top. When it moves to the corresponding crack, the airbags on the upper and lower sides of the crack form a blocking space for the corresponding crack, and then grouting repair is carried out on the blocking space through the side grouting repair holes; The grouting repair pipe is provided with a sliding groove, and multiple sliding rings are slidably connected to the sliding groove. The airbags are installed on the sliding rings. Electromagnet 1 and electromagnet 2 are installed on the sliding rings. The sliding rings are fixedly connected to the grouting repair pipe through electromagnet 1 and electromagnet 2, and the position of the sliding rings on the grouting repair pipe is adjusted by changing the magnetic poles between electromagnet 1 and electromagnet 2.

2. A reservoir leakage detection and repair device according to claim 1, characterized in that, The bottom of the grouting repair pipe is provided with an opening, and a pipe bottom sealing plate is threadedly connected to the opening. A bottom grouting repair hole is opened on the pipe bottom sealing plate, and a solenoid valve is installed on the bottom grouting repair hole.

3. A reservoir leakage detection and repair device according to claim 2, characterized in that, It also includes a support frame, and a hydraulic device is fixedly connected to the support frame. The grouting repair pipe is installed on the telescopic end of the hydraulic device.

4. A reservoir leakage detection and repair device according to claim 3, characterized in that, A mounting plate is fixedly connected to the telescopic end of the hydraulic device. A clamping plate is installed on the mounting plate through bolts. An installation hole is arranged in the middle after the mounting plate and the clamping plate are spliced. The grouting repair pipe is installed in the installation hole between the mounting plate and the clamping plate.

5. A reservoir leakage detection and repair device according to claim 4, characterized in that, An installation groove is arranged in the installation hole, and an installation ring matching the installation groove is arranged on the grouting repair pipe.

6. A reservoir leakage detection and repair device according to claim 1, characterized in that, An air nozzle is installed on the airbag.

7. A reservoir leakage detection and repair device according to claim 6, characterized in that, A sealing lip is arranged on the side of the airbag.

8. A method for detecting and repairing reservoir leakage, which is used for a reservoir leakage detection and repair device according to claim 4, and is characterized in that, It includes the following operation steps: Step 1: Detect the crack position on the reservoir dam through a radar detection device; Step 2: Use a drilling device to drill grouting repair holes near the cracks in the concrete dam. Multiple grouting repair holes are evenly arranged left and right along the cracks, and the drilling depth penetrates the deep cracks; Step 3: Install the support frame, install the grouting repair pipe on the support frame, and connect it to the grouting repair equipment; Step 4: Slowly insert the grouting repair pipe into the grouting repair hole through the hydraulic device on the support frame, and record the position and size of the cracks through the change of the pressure sensor inside the airbag until it is inserted to the bottom of the grouting repair hole; Step 5. Adjust the position of the grouting repair holes on the upper side of the grouting repair pipe through the hydraulic device so that it can be aligned with the bottommost crack from bottom to top. At this time, the airbags on both the upper and lower sides of the grouting repair holes will play a role in isolation, forming a relatively sealed space. Subsequently, the high-polymer repair fluid in the repair fluid storage tank is sucked out through the grouting repair equipment for the repair fluid, and then discharged through the side grouting repair holes to grout and repair the cracks within the sealed space. Step 6. Adjust the grouting position through the hydraulic device to move the side grouting repair holes upward, and then move the side grouting repair holes within the relatively sealed space to the cracks above. Then, grout and repair the cracks through the side grouting repair holes. The subsequent steps are the same, and the remaining cracks above are grouted and repaired in sequence. Step 7. After the grouting repair is completed, seal the grouting repair holes, and then repair and seal the remaining grouting repair holes in sequence.

9. A reservoir leakage detection and repair method according to claim 8, characterized in that, The high-polymer repair fluid is prepared by mixing component A resin raw materials and component B curing agent. Among them, the component A resin raw materials are as follows: Low-viscosity flexible asphalt W200: 500 kg, Aromatic oil for environmental protection rubber: 100 kg, Rosin polyester polyol JC-380: 80 kg, Wanenate PM200: 270 kg, Dibutyltin dilaurate: 1 kg, Auxiliary agent: 49 kg; Component B curing agent: TMR-2; The preparation process is as follows: Add 500 kg of low-viscosity flexible asphalt W200 and 100 kg of aromatic oil for environmental protection rubber into a clean vacuum reactor, heat to 120 °C, evacuate for 2 h to remove the moisture inside. When the moisture content is below one-thousandth, stop evacuating. Cool down to 80 °C, add 80 kg of rosin polyester polyol JC-380 and 270 kg of polyphenylmethane polyisocyanate wanenate PM200, and stir evenly. Gradually add 1 kg of catalyst dibutyltin dilaurate with a peristaltic pump, and at the same time add 49 kg of auxiliary agent, keep the temperature at 80 °C, and then react fully for 2 h under stirring conditions to form the final product. Under nitrogen conditions, it is packaged and stored. Then, before the grouting repair, heat the prepared component A resin to 120 °C, and then premix it with component B curing agent according to a mass ratio of 100:0.05 - 0.1 and inject it into the repair fluid storage tank.

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