Rapid blocking method for piping channel of dam project

Abstract

The invention discloses a rapid blocking method for a piping channel of a dam project. The rapid blocking method comprises the following steps that S10, a waterproof film is laid on the upstream face of a dam to block an inlet of the piping channel; and S20, an inverted filtration infiltration well is constructed at an outlet of the piping channel. According to the method, the piping danger is treated in an upper-blocking and lower-discharging mode, when piping is found, a waterproof film is quickly laid on the upstream face of the dam to block an inlet of a piping channel, the piping danger is prevented from being expanded, time is bought for subsequent danger disposal, then an inverted filtration infiltration well is constructed at the outlet of the piping, and the piping danger is prevented from being blocked. In this way, the inlet and outlet of the piping channel can be quickly, efficiently and reliably blocked, the blocking efficiency and reliability are improved, and the dam burst risk is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy projects, and in particular to a method for quickly blocking a pipe burst channel in a dam project. Background Art

[0002] As an important water conservancy infrastructure, the safety and stability of dam projects are directly related to the safety of life and property of people in downstream areas. However, since most dams were built in the 1950s and 1960s, they were limited by the construction conditions at that time, the dam filling quality was poor, the foundation treatment was poor, there were snake and rat caves during operation, and due to the influence of various factors such as extreme weather and water erosion, the dams often have dangerous situations such as pipe bursts during the flood season. Piping refers to the seepage deformation phenomenon that occurs near the back slope or foot of the dam. When the seepage water flow carries away the fine particles of the soil, it will form a cavity or channel inside the dam, which will cause the dam to collapse and form a breach. The principle of pipe burst is "blocking up and draining down". The existing dam pipe burst treatment technologies and emergency methods mainly include anti-filtration wells, water storage back pressure, water filtration pressure infiltration platform, etc., which mainly adopt the "downward drainage" method. Although these technical methods can alleviate the danger of pipe bursts to a certain extent, they have many shortcomings. For example, if the water outlet is only filtered and drained, it cannot be implemented when the water is large. At the same time, sandbag blocking requires a lot of manpower and material resources, and it is difficult to quickly form an effective blocking barrier. Therefore, it is particularly important to develop a rescue device and method that can block the entrance of the pipe burst channel, conduct water diversion and sand suppression at the outlet, and quickly, efficiently and reliably block the pipe burst of the dam. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a method for quickly blocking pipe burst channels in dam projects, so as to quickly, efficiently and reliably block the entrances and exits of pipe burst channels, improve the blocking efficiency and reliability, and reduce the risk of dam breach.

[0004] The present invention provides a method for quickly blocking a pipe burst channel in a dam project, comprising the following steps:

[0005] Step S10, laying a waterproof membrane on the water-facing surface of the dam to block the entrance of the piping channel;

[0006] Step S20, constructing a reverse filtration and osmosis pressure well at the outlet of the piping channel.

[0007] Furthermore, the waterproof membrane includes canvas and a PVC coating coated on the surface of the canvas.

[0008] Furthermore, lead sinkers are provided on both sides of the waterproof membrane, and the waterproof membrane is rolled up on a winding device. When laying the waterproof membrane, the winding device is moved to the dam near the entrance of the piping channel, and at least two drones are connected to the two sides of the waterproof membrane through an automatic unhooking device. The drone pulls the waterproof membrane out of the winding device and tows the waterproof membrane above the entrance of the piping channel, and then controls the automatic unhooking device to automatically unhook. Under the action of the lead sinker, the waterproof membrane sinks to the water-facing surface of the dam, thereby covering the entrance of the piping channel.

[0009] Furthermore, the plumb line includes a connecting belt and a plurality of plumb line blocks arranged at intervals on the connecting belt, and the connecting belt is attached to the surface of the waterproof membrane by Velcro;

[0010] The winding device comprises a frame, a waterproof film winding roller, a first driving mechanism, two lead-sinking winding wheels, a second driving mechanism, a lower guide roller and an upper guide roller;

[0011] The waterproof film winding roller is rotatably mounted on the frame and is used for winding the waterproof film;

[0012] The first driving mechanism is used to drive the waterproof membrane winding roller to rotate;

[0013] The two lead sinker reel wheels are symmetrically mounted on the frame and are used to reel in the lead sinkers on both sides of the waterproof membrane.

[0014] The second driving mechanism is used to drive the two lead sinker reels to rotate;

[0015] The lower guide roller and the upper guide roller are arranged opposite to each other up and down and are rotatably installed on the frame. The lower guide roller and the upper guide roller are arranged in front of the waterproof film winding roller and the two lead sinker winding wheels. The waterproof film led out of the waterproof film winding roller is led out from the upper side of the lower guide roller, and the two lead sinkers led out of the two lead sinker winding wheels are led out from the lower side of the upper guide roller, and the two lead sinkers are respectively adhered to the surfaces on both sides of the waterproof film under the squeezing of the upper guide roller.

[0016] Furthermore, the upper guide roller is provided with an annular limiting groove corresponding one-to-one to the two lead sinkers.

[0017] Furthermore, the frame includes a base and side plates arranged on the upper sides of both ends of the base, the waterproof membrane winding roller and the lower guide roller are respectively rotatably installed between the two side plates, the two lead weight winding wheels are coaxially fixed on the first rotating shaft, the first rotating shaft is rotatably installed between the two side plates, the first driving mechanism is a first motor installed outside one side plate and transmission connected to the waterproof membrane winding roller, and the second driving mechanism is a second motor installed outside one side plate and rotationally connected to the first rotating shaft.

[0018] Furthermore, it also includes a second rotating shaft and a third driving mechanism;

[0019] The second rotating shaft is arranged parallel to the lower part of the upper guide roller and is rotatably mounted between the two side plates. The two ends of the second rotating shaft respectively pass through the corresponding side plates and are fixed with telescopic rods. The telescopic ends of the two telescopic rods are provided with rotating seats. The two ends of the upper guide roller are respectively rotatably mounted on the two rotating seats.

[0020] The third driving mechanism is used to drive the second rotating shaft to rotate.

[0021] Furthermore, the third driving mechanism includes a third motor and a meshing driving gear and a driven gear, the third motor is fixed on the base, the driving gear is coaxially fixed on the output shaft of the third motor, and the driven gear is coaxially fixed on the second rotating shaft.

[0022] Furthermore, a roller is provided at the bottom of the base.

[0023] Furthermore, a plurality of supports are arranged around the base, a threaded lifting and adjusting rod is installed on each of the supports, and a support block is arranged at the lower end of each of the threaded lifting and adjusting rods.

[0024] The beneficial effects of the present invention are embodied in:

[0025] This application adopts the method of "blocking above and draining below" to deal with the danger of pipe bursts. When a pipe burst is found, a waterproof membrane is quickly laid on the water-facing surface of the dam to block the entrance of the pipe burst channel to prevent the expansion of the pipe burst hazard and buy time for subsequent hazard handling. Then, an anti-filtration and seepage pressure well is constructed at the outlet of the pipe burst. This can quickly, efficiently and reliably block the entrance and exit of the pipe burst channel, improve the blocking efficiency and reliability, and reduce the risk of dam breach. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0027] Figure 1 A schematic diagram of laying a waterproof membrane by using a drone according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of handling a pipe burst hazard according to an embodiment of the present invention;

[0029] Figure 3 It is a structural schematic diagram of a winding device according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the upper guide roller pressing down in an embodiment of the present invention.

[0031] Figure 5 It is a schematic structural diagram of a lead sinker according to an embodiment of the present invention.

[0032] In the attached figure, 100-dam; 110-water-facing surface; 200-waterproof membrane; 210-plumb; 211-connecting belt; 212-plumb block; 300-reverse filtration and seepage pressure well; 400-winding device; 410-frame; 411-base; 412-side plate; 413-roller; 414-support; 415-threaded lifting and lowering adjustment rod; 416-support block; 420-waterproof membrane winding roller; 430-first drive driving mechanism; 440-lead sinker reel; 441-first rotating shaft; 450-second driving mechanism; 460-lower guide roller; 470-upper guide roller; 471-annular limiting groove; 480-second rotating shaft; 481-telescopic rod; 482-rotating seat; 490-third driving mechanism; 491-third motor; 492-driving gear; 493-driven gear; 500-UAV; 510-automatic unhooking device. DETAILED DESCRIPTION

[0033] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0034] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the invention belongs.

[0035] like Figure 1-Figure 5 As shown, an embodiment of the present invention provides a method for quickly blocking a pipe burst channel in a dam project, comprising the following steps:

[0036] Step S10, laying a waterproof membrane 200 on the water-facing surface 110 of the dam 100 to block the entrance of the pipe flow channel.

[0037] Step S20, constructing a reverse filtration osmosis pressure well 300 at the outlet of the piping channel.

[0038] The present application adopts the method of "blocking above and draining below" to deal with the danger of pipe bursts. When a pipe burst is found, a waterproof membrane 200 is quickly laid on the water-facing surface 110 of the dam 100 to block the entrance of the pipe burst channel to prevent the expansion of the pipe burst hazard and buy time for subsequent hazard handling. Then, a reverse filtration and seepage pressure well 300 is constructed at the outlet of the pipe burst. In this way, the entrance and exit of the pipe burst channel can be quickly, efficiently and reliably blocked, thereby improving the blocking efficiency and reliability and reducing the risk of the dam 100 bursting.

[0039] In some embodiments, the waterproof membrane 200 includes canvas and a PVC coating coated on the surface of the canvas. The canvas is woven with twisted yarns and the surface is coated with a PVC coating, so that the canvas has the functions of waterproof, wear-resistant and tear-resistant, and can effectively and reliably block the entrance of the pipe burst channel.

[0040] In some embodiments, reference Figure 2 , lead sinkers 210 are provided on both sides of the waterproof membrane 200, and the waterproof membrane 200 is rolled up on the winding device 400. When laying the waterproof membrane 200, the winding device 400 is moved to the dam 100 near the entrance of the pipe burst channel, and at least two drones 500 are connected to both sides of the waterproof membrane 200 through the automatic unhooking device 510. The drone 500 pulls the waterproof membrane 200 out of the winding device 400 and pulls the waterproof membrane 200 above the entrance of the pipe burst channel, and then controls the automatic unhooking device 510 to automatically unhook. Under the action of the lead sinker 210, the waterproof membrane 200 sinks to the water-facing surface 110 of the dam 100, thereby covering the entrance of the pipe burst channel.

[0041] In this embodiment, lead sinkers 210 are arranged on both sides of the waterproof membrane 200, and the lead sinkers 210 can make the waterproof membrane 200 sink rapidly. The waterproof membrane 200 is towed by the drone 500, so that the waterproof membrane 200 can be efficiently and conveniently laid to the entrance of the pipe burst channel, effectively blocking water from entering the pipe burst channel and preventing the dam from being further damaged. The drone 500 is connected to the waterproof membrane 200 through the automatic unhooking device 510. After the waterproof membrane 200 is towed to the designated position, the automatic unhooking device 510 automatically falls off, so that the waterproof membrane 200 sinks rapidly and sticks to the water-facing surface 110, so that the waterproof membrane 200 can be efficiently and conveniently laid on the water-facing surface 110 of the dam.

[0042] In some embodiments, reference Figure 1-Figure 5 The plumb sinker 210 includes a connecting belt 211 and a plurality of plumb sinker blocks 212 spaced apart on the connecting belt 211 . The connecting belt 211 is attached to the surface of the waterproof membrane 200 by Velcro.

[0043] The winding device 400 includes a frame 410 , a waterproof film winding roller 420 , a first driving mechanism 430 , two lead weight winding wheels 440 , a second driving mechanism 450 , a lower guide roller 460 and an upper guide roller 470 .

[0044] The waterproof membrane winding roller 420 is rotatably mounted on the frame 410 and is used to wind up the waterproof membrane 200 .

[0045] The first driving mechanism 430 is used to drive the waterproof film winding roller 420 to rotate.

[0046] Two lead sinker reeling wheels 440 are symmetrically mounted on the frame 410 and are used to reel in the lead sinkers 210 on both sides of the waterproof membrane 200 .

[0047] The second driving mechanism 450 is used to drive the two lead sinker reels 440 to rotate.

[0048] The lower guide roller 460 and the upper guide roller 470 are arranged opposite to each other up and down and are rotatably installed on the frame 410. The lower guide roller 460 and the upper guide roller 470 are arranged in front of the waterproof film winding roller 420 and the two lead sinkers winding wheels 440. The waterproof film 200 led out of the waterproof film winding roller 420 is led out from the upper side of the lower guide roller 460, and the two lead sinkers 210 led out of the two lead sinkers winding wheels 440 are led out from the lower side of the upper guide roller 470, and the two lead sinkers 210 are respectively adhered to the surfaces on both sides of the waterproof film 200 under the squeezing of the upper guide roller 470.

[0049] The lead sinker 210 drives the waterproof membrane 200 to sink rapidly. The traditional installation method is to set button holes at intervals on both sides of the waterproof membrane 200 and hang the lead sinker 210 on the button holes. The defect of this design is that the lead sinker 210 and the waterproof membrane 200 cannot be rolled up together on the winding device 400. In the process of pulling the waterproof membrane 200 out from the winding device 400, the lead sinker 210 needs to be hung up. In the process of recycling the waterproof membrane 200, the lead sinkers 210 on both sides of the waterproof membrane 200 need to be removed, which increases the work in laying and recycling the waterproof membrane 200.

[0050] The lead sinker 210 of the present application adopts a strip-shaped design, and the waterproof membrane 200 can be rolled up on the waterproof membrane winding roller 420 separately, and the lead sinkers 210 on both sides of the waterproof membrane 200 are respectively rolled up on two lead sinker winding wheels 440. When the waterproof membrane 200 is pulled out, the waterproof membrane 200 and the lead sinkers 210 on both sides are led out from between the lower guide roller 460 and the upper guide roller 470. During the leading-out process, the lead sinkers 210 are fixed to the surfaces on both sides of the waterproof membrane 200 by Velcro under the squeezing of the upper guide roller 470, so as to realize the lead sinkers 210 being fixed to the surfaces on both sides of the waterproof membrane 200 by Velcro. 0 is combined with the waterproof membrane 200. When the waterproof membrane 200 is recycled, the waterproof membrane winding roller 420 and the two lead sinker winding wheels 440 are driven to rotate respectively, and the waterproof membrane 200 and the lead sinkers 210 attached to both sides thereof are separated at the lower guide roller 460 and the upper guide roller 470. The separated waterproof membrane 200 is rolled up on the waterproof membrane winding roller 420, and the separated two lead sinker winding wheels 440 are respectively rolled up on the two lead sinker winding wheels 440, thereby realizing the separation and separate rolling of the lead sinkers 210 from the waterproof membrane 200. Therefore, in the process of laying and recycling the waterproof membrane 200, the present application saves the trouble of manually installing and disassembling the lead sinkers 210, reduces the work in laying and recycling the waterproof membrane 200, and makes the laying and recycling of the waterproof membrane 200 more efficient. .

[0051] Optionally, refer to Figure 3 The upper guide roller 470 is provided with an annular limiting groove 471 corresponding to the two lead sinkers 210 one by one. The annular limiting groove 471 can limit the lead sinkers 210 to ensure that the lead sinkers 210 are aligned with the corresponding Velcro sticking position on the waterproof membrane 200.

[0052] Continue to refer to Figure 3 The frame 410 includes a base 411 and side plates 412 arranged on the upper sides of both ends of the base 411. The waterproof film winding roller 420 and the lower guide roller 460 are respectively rotatably installed between the two side plates 412. The two lead sinker winding wheels 440 are coaxially fixed on the first rotating shaft 441. The first rotating shaft 441 is rotatably installed between the two side plates 412. The first driving mechanism 430 is a first motor installed outside the one side plate 412 and transmission-connected to the waterproof film winding roller 420. The second driving mechanism 450 is a second motor installed outside the one side plate 412 and rotatably connected to the first rotating shaft 441.

[0053] This embodiment can drive the waterproof film winding roller 420 to retract and release the waterproof film 200 by controlling the forward and reverse rotation of the first motor, and can control the forward and reverse rotation of the second motor to drive the two lead sinker winding wheels 440 to synchronously retract and release the lead sinker 210. It has a simple structure and reliable operation.

[0054] In some embodiments, reference Figure 3 and Figure 4 , also includes a second rotating shaft 480 and a third driving mechanism 490.

[0055] The second rotating shaft 480 is arranged parallel to the lower part of the upper guide roller 470 and is rotatably installed between the two side plates 412. The two ends of the second rotating shaft 480 respectively pass through the corresponding side plates 412 and are fixed with telescopic rods 481. The telescopic ends of the two telescopic rods 481 are provided with rotating seats 482, and the two ends of the upper guide roller 470 are respectively rotatably installed on the two rotating seats 482.

[0056] The third driving mechanism 490 is used to drive the second rotating shaft 480 to rotate. Specifically, the third driving mechanism 490 includes a third motor 491 and a driving gear 492 and a driven gear 493 that are meshed with each other. The third motor 491 is fixed on the base 411, the driving gear 492 is coaxially fixed on the output shaft of the third motor 491, and the driven gear 493 is coaxially fixed on the second rotating shaft 480. When the third motor 491 rotates, the driven gear 493 can be driven to rotate through the driving gear 492, thereby driving the second rotating shaft 480 to rotate.

[0057] With the above design, during the process of laying or recovering the waterproof membrane 200, the upper guide roller 470 can be swung to the top of the lower guide roller 460, and then the telescopic rod 481 can be controlled to retract, so that the upper guide roller 470 presses the waterproof membrane 200 and the lead weights 210 on both sides thereof onto the lower guide roller 460 (such as Figure 2 and Figure 3As shown in FIG. 1 ), after the waterproof membrane 200 is laid on the water-facing surface 110 of the dam 100, the telescopic rod 481 can be controlled to extend, and then the upper guide roller 470 is swung downward, so that the upper guide roller 470 presses the waterproof membrane 200 against the top of the dam 100 (as shown in FIG. 1 ). Figure 1 and Figure 4 As shown), the waterproof membrane 200 can be effectively and reliably fixed on the top of the dam 100 and the water-facing surface 110, so that the waterproof membrane 200 is closely attached to the water-facing surface 110 to prevent it from falling off.

[0058] Optionally, the telescopic rod 481 may be a pneumatic rod, a hydraulic rod or an electric telescopic rod.

[0059] In some embodiments, reference Figure 3 In order to facilitate the movement of the winding device 400 , a roller 413 is provided at the bottom of the base 411 .

[0060] Preferably, a plurality of supports 414 are provided around the base 411, and a threaded lifting adjustment rod 415 is installed on each support 414, and a support block 416 is provided at the lower end of each threaded lifting adjustment rod 415. After the winding device 400 moves to the piping channel, the threaded lifting adjustment rod 415 can be adjusted to support each support block 416 on the ground, so as to prevent the winding device 400 from moving during the laying and recovery of the waterproof membrane 200.

[0061] The reverse filtration and infiltration pressure well 300 adopts a detachable water filtration and infiltration pressure well. The bottom is a steel mesh with geotextile and RCP seepage drainage. It has a good sand filtering and drainage effect on pipe gushing water, and has sufficient toughness. It is surrounded by foldable and detachable infiltration pressure wells made of PVC. Steel pipes are arranged every 35cm inside. The lower part of the steel pipe is conical, which is convenient for insertion into the soil. The foldable and detachable infiltration pressure well can reach a height of 1.5 meters and can effectively suppress the gushing water. The infiltration pressure well can be folded and disassembled for easy storage and transportation, and can be reused many times. It can filter sand and drain the gushing water efficiently, economically, safely and reliably, prevent the pipe gushing channel from expanding continuously and the dam from being further damaged, thereby ensuring the safety and stability of the dam project.

[0062] The specific construction steps of the reverse filtration and seepage pressure well 300 are: place the steel mesh sandwiched with geotextile and RCP seepage drainage at the pipe outlet; unfold the pressure seepage well, cover it above the reverse filtration steel mesh, and insert the steel pipe into the soil; surround the pressure seepage well with a layer of sandbags to prevent the water in the pressure seepage well from flowing out.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A method for quickly blocking a pipe burst channel in a dam project, characterized in that: The steps include: Step S10, laying a waterproof membrane on the water-facing surface of the dam to block the entrance of the piping channel; Step S20, constructing a reverse filtration and osmosis pressure well at the outlet of the piping channel.

2. The method for rapid blocking of pipe burst channels in dam engineering according to claim 1, characterized in that: The waterproof membrane comprises canvas and a PVC coating coated on the surface of the canvas.

3. The method for rapid blocking of pipe burst channels in dam engineering according to claim 1 or 2, characterized in that: Lead sinkers are provided on both sides of the waterproof membrane, and the waterproof membrane is rolled up on a winding device. When laying the waterproof membrane, the winding device is moved to the dam near the entrance of the piping channel, and at least two drones are connected to the two sides of the waterproof membrane through an automatic unhooking device. The drone pulls the waterproof membrane out of the winding device and tows the waterproof membrane above the entrance of the piping channel, and then controls the automatic unhooking device to automatically unhook. Under the action of the lead sinker, the waterproof membrane sinks to the water-facing surface of the dam, thereby covering the entrance of the piping channel.

4. The method for rapid blocking of pipe burst channels in dam engineering according to claim 3, characterized in that: The plumb line includes a connecting belt and a plurality of plumb line blocks arranged at intervals on the connecting belt, and the connecting belt is attached to the surface of the waterproof membrane by Velcro; The winding device comprises a frame, a waterproof film winding roller, a first driving mechanism, two lead-sinking winding wheels, a second driving mechanism, a lower guide roller and an upper guide roller; The waterproof film winding roller is rotatably mounted on the frame and is used for winding the waterproof film; The first driving mechanism is used to drive the waterproof membrane winding roller to rotate; The two lead sinker reel wheels are symmetrically mounted on the frame and are used to reel in the lead sinkers on both sides of the waterproof membrane. The second driving mechanism is used to drive the two lead sinker reels to rotate; The lower guide roller and the upper guide roller are arranged opposite to each other up and down and are rotatably installed on the frame. The lower guide roller and the upper guide roller are arranged in front of the waterproof film winding roller and the two lead sinker winding wheels. The waterproof film led out of the waterproof film winding roller is led out from the upper side of the lower guide roller, and the two lead sinkers led out of the two lead sinker winding wheels are led out from the lower side of the upper guide roller, and the two lead sinkers are respectively adhered to the surfaces on both sides of the waterproof film under the squeezing of the upper guide roller.

5. The method for rapid blocking of pipe burst channels in dam engineering according to claim 4, characterized in that: The upper guide roller is provided with an annular limiting groove corresponding to the two lead sinkers one by one.

6. The method for rapid blocking of pipe burst channels in dam engineering according to claim 4, characterized in that: The frame includes a base and side plates arranged on the upper sides of both ends of the base, the waterproof membrane winding roller and the lower guide roller are respectively rotatably installed between the two side plates, the two lead weight winding wheels are coaxially fixed on the first rotating shaft, the first rotating shaft is rotatably installed between the two side plates, the first driving mechanism is a first motor installed outside one side plate and drivingly connected to the waterproof membrane winding roller, and the second driving mechanism is a second motor installed outside one side plate and rotatably connected to the first rotating shaft.

7. The method for rapid blocking of pipe burst channels in dam engineering according to claim 6, characterized in that: Also includes a second rotating shaft and a third driving mechanism; The second rotating shaft is arranged parallel to the lower part of the upper guide roller and is rotatably mounted between the two side plates. The two ends of the second rotating shaft respectively pass through the corresponding side plates and are fixed with telescopic rods. The telescopic ends of the two telescopic rods are provided with rotating seats. The two ends of the upper guide roller are respectively rotatably mounted on the two rotating seats. The third driving mechanism is used to drive the second rotating shaft to rotate.

8. The method for rapid blocking of pipe burst channels in dam engineering according to claim 7, characterized in that: The third driving mechanism includes a third motor and a driving gear and a driven gear meshing with each other. The third motor is fixed on the base, the driving gear is coaxially fixed on the output shaft of the third motor, and the driven gear is coaxially fixed on the second rotating shaft.

9. The method for rapid blocking of pipe burst channels in dam engineering according to claim 6, characterized in that: The bottom of the base is provided with rollers.

10. The method for rapid blocking of pipe burst channels in dam engineering according to claim 9, characterized in that: A plurality of supports are arranged around the base, each of the supports is provided with a threaded lifting and adjusting rod, and a support block is arranged at the lower end of each of the threaded lifting and adjusting rods.

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