An underwater plugging earth anchor, underwater blocking method and dike breach closure method

Abstract

The present application relates to a kind of underwater plugging earth anchor, underwater blocking method and dike breach closure method, the underwater plugging earth anchor includes for driving into the soil of water bottom, blocking section and boost section, earth section is set in the front end of blocking section to make earth section drive into the soil of water bottom, and blocking section can form the blocking pile of blocking water object on the upper portion of soil of water bottom, boost section includes the fuel tank that can carry fuel and the jet port opened in the bottom of fuel tank to provide thrust for underwater plugging earth anchor;By setting blocking section, so that underwater plugging earth anchor can also use itself to act as blocking object while driving into the soil, improve the plugging efficiency, boost section can also provide the holding power for blocking section after launching, provide the depth of guarantee for earth section driving into the soil, solve the problem of poor plugging effect in prior art that earth anchor is affected by anchor cable and poor flight stability.

Description

Technical Field

[0001] This invention relates to the field of ground anchors in water conservancy projects, and more particularly to an underwater sealing drill ground anchor and an underwater sealing method. Background Technology

[0002] Floods pose a serious threat to the lives and property of the people. The sealing of breaches is usually done by throwing stones, nets, or other objects directly into the breach. However, when facing breaches in the main streams of large rivers with large drops and high flow velocities, the objects thrown into the breach are difficult to take root and spread quickly, resulting in poor effectiveness and long waiting times.

[0003] Chinese invention patent application CN107587507A discloses a rocket-propelled drilling anchor. This anchor has an anchor cable attached to its tail, which can be connected to fixed piles on the bank. In use, rescue personnel first drive multiple fixed piles into the embankment near the breach and connect the anchor cable at the tail of the anchor to these piles. Then, they calculate the trajectory, adjust the launch vehicle's attitude, and launch the anchor, already connected to the fixed piles, to the breach. The launched anchor embeds itself in the underwater mud and establishes a sliding channel with the fixed piles on the embankment through the tail anchor cable. Rescue personnel then suspend a gabion mesh on the anchor cable and slide it along the cable to the designated location at the breach. This solves the problem of the difficulty in quickly and stably anchoring thrown materials at the breach, achieving rapid and efficient sealing and closure of the embankment breach.

[0004] However, due to the limited length of the anchor cable itself, it is very dangerous for the staff to drive the launch vehicle to a position close to the breach. Moreover, they often encounter situations where the terrain is uneven and the launch vehicle cannot get close. If the length of the anchor cable is increased rashly, the anchor body embedded in the soil will loosen and fall out of the soil due to the excessive drag arm. In addition, the anchor cable at the tail will also affect the stability of the anchor body's flight and affect the accuracy of the launch. Especially when the anchor body enters the water, the anchor cable will generate great resistance, causing serious loss of the anchor body's kinetic energy, making it impossible to reach the expected drilling depth, ultimately leading to poor sealing effect. Summary of the Invention

[0005] The present invention aims to provide an underwater sealing anchor for drilling and blocking devices, thereby solving the problem that existing drilling and blocking anchor devices require anchor cables at the tail, resulting in unstable anchor flight and poor sealing effect; the present invention also aims to provide an underwater blocking method, thereby solving the problem that existing drilling and blocking anchor devices require anchor cables at the tail, resulting in unstable anchor flight and poor sealing effect; and the present invention further aims to provide a method for closing a dam breach, thereby solving the problem that existing drilling and blocking anchor devices require anchor cables at the tail, resulting in unstable anchor flight and poor sealing effect.

[0006] To solve the above problems, the underwater sealing drill anchor of the present invention adopts the following technical solution:

[0007] The present invention discloses an underwater sealing drilling anchor comprising a drilling section for penetrating underwater mud, a blocking section, and a boosting section. The drilling section is located at the front end of the blocking section so that after the drilling section penetrates the underwater mud, the blocking section can form a blocking pile on the upper part of the underwater mud to block water-blocking objects. The boosting section includes a fuel tank that can carry fuel and a jet nozzle opened at the bottom of the fuel tank to provide thrust to the underwater sealing drilling anchor.

[0008] Furthermore, the barrier section has a cylindrical structure.

[0009] Furthermore, the barrier section is a concrete column.

[0010] Furthermore, the drilling section includes a cone-shaped warhead at the front end.

[0011] Furthermore, the conical warhead includes a warhead casing and a switch. The warhead casing has an air supply chamber inside, and the warhead casing has an air film generation hole that allows the air supply chamber to communicate with the outside. The air supply chamber has an air supply component that can generate jet airflow inside. The switch is connected to the air supply component to control the air supply component to spray air outward through the air film generation hole after entering the water to form an air film outside the warhead casing.

[0012] Furthermore, the film-forming hole is located at the front of the warhead casing.

[0013] Furthermore, the film-forming hole is located at the front tip of the warhead casing.

[0014] Furthermore, a water inlet cavity is provided inside the warhead casing. The switch includes an actuator that can trigger the operation of the air supply assembly, a water immersion sensor that can sense water and generate a water signal, and a signal converter that can convert the water signal into an electrical signal. The actuator and the signal converter are located inside a receiving cavity provided inside the warhead casing. The signal converter is connected to the water immersion sensor and the actuator to convert the water signal from the water immersion sensor into an electrical signal and send it to the actuator to enable the air supply assembly to operate. The water immersion sensor is located in the water inlet cavity.

[0015] Furthermore, multiple water inlet channels are formed along the circumferential direction on the wall of the water inlet chamber.

[0016] Furthermore, the cement column includes a conical projectile at the front end. The conical projectile includes a projectile housing and a switch. The projectile housing has an air supply chamber inside. The projectile housing has an air film generation hole that allows the air supply chamber to communicate with the outside. The air supply chamber has an air supply component that can generate jet airflow inside. The switch is connected to the air supply component to control the air supply component to spray air outward through the air film generation hole after entering the water to form an air film outside the projectile housing.

[0017] Furthermore, the film-forming hole is located at the front of the warhead casing.

[0018] Furthermore, the film-forming hole is located at the front tip of the warhead casing.

[0019] Furthermore, a water inlet cavity is provided inside the warhead casing. The switch includes an actuator that can trigger the operation of the air supply assembly, a water immersion sensor that can sense water and generate a water signal, and a signal converter that can convert the water signal into an electrical signal. The actuator and the signal converter are located inside a receiving cavity provided inside the warhead casing. The signal converter is connected to the water immersion sensor and the actuator to convert the water signal from the water immersion sensor into an electrical signal and send it to the actuator to enable the air supply assembly to operate. The water immersion sensor is located in the water inlet cavity.

[0020] Furthermore, multiple water inlet channels are formed along the circumferential direction on the wall of the water inlet chamber.

[0021] Beneficial effects: This invention provides a novel underwater plugging drilling anchor that eliminates the tail cable design, greatly improving flight stability. By incorporating an arresting section, the underwater plugging drilling anchor itself acts as an arresting force, improving plugging efficiency. Simultaneously, the booster section provides sufficient kinetic energy to the overall structure, allowing the drilling section to deeply penetrate the underwater mud and provide anchoring force to the arresting section. This solves the problem of existing drilling anchor arresting devices requiring a tail cable, which leads to insufficient anchor stability and poor plugging effect.

[0022] To solve the above problems, the underwater blocking method of the present invention adopts the following technical solution:

[0023] The present invention provides an underwater sealing method comprising launching an underwater sealing drill anchor towards the breach in the form of a projectile, causing the underwater sealing drill anchor to embed itself in the bottom mud, using the portion of the underwater sealing drill anchor not inserted into the bottom mud as a barrier pile, and performing the barrier task through a fence structure formed by multiple sealing drill anchors.

[0024] Beneficial effects: This invention provides a novel underwater plugging method. Because the underwater plugging drilling anchor used in this method abandons the tail anchor cable design, the flight stability is greatly improved. By using the underwater plugging drilling anchor itself as an obstruction, the plugging efficiency is improved, and the problem of poor plugging effect caused by the need to set an anchor cable at the tail of the existing drilling anchor obstruction device is solved.

[0025] To address the above problems, the dam breach closure method of the present invention adopts the following technical solution:

[0026] The present invention provides a method for closing a breach, which includes launching underwater sealing drill anchors at the breach in the form of projectiles, allowing the underwater sealing drill anchors to penetrate into the bottom mud and take root, using the parts of the underwater sealing drill anchors that are not inserted into the bottom mud as barrier piles, forming a fence structure through multiple sealing drill anchors, and releasing water-blocking materials upstream of the fence structure.

[0027] Beneficial effects: This invention provides a novel method for breach closure. Because the underwater sealing drilling anchor used in this breach closure method abandons the tail anchor cable design, the flight stability is greatly improved. By using the underwater sealing drilling anchor itself as an obstruction, the sealing efficiency is improved, and the problem of poor sealing effect caused by the need to set the tail anchor cable in the existing drilling anchor obstruction device is solved. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of an underwater sealing drill anchor of the present invention;

[0029] Figure 2 This is a schematic diagram illustrating the use of an embodiment of the underwater blocking method of the present invention.

[0030] In the diagram: 1. Film gas generation hole; 2. Warhead casing; 6. Sealing protective shell; 7. Signal converter; 8. Signal transmission line; 9. Water immersion sensor; 10. Water inlet channel; 11. Gas supply assembly; 12. Arresting section; 13. Boosting section; 14. Boosting fuel; 15. Jet nozzle; 16. Gas nozzle; 17. Bottom mud; 18. Water blocking material; 19. Launching body; 20. Breach; 21. Embankment; 22. Launch vehicle; 23. Cluster launch device. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Firstly, the inventive concept of this invention lies in the following: by setting up an obstruction section 12 that can form an obstruction pile on the upper part of the underwater mud to block water obstruction 18, the underwater sealing drilling anchor itself can act as an obstruction, eliminating the need to set up an anchor cable at the tail to establish a sliding cableway, thus avoiding the adverse effects of the anchor cable. This solves the problem that existing drilling anchor obstruction devices require setting up an anchor cable at the tail, resulting in insufficient stability of the anchor body during flight and poor sealing effect.

[0033] Based on the above inventive concept, the present invention provides a basic solution for an underwater plugging drill anchor as follows: Figure 1As shown, the system includes a drilling section for penetrating the underwater mud, a blocking section 12, and a booster section 13. The drilling section is located at the front end of the blocking section 12 so that after the drilling section penetrates the underwater mud, the blocking section 12 can form a blocking pile on the upper part of the underwater mud to block the water-blocking object 18. The booster section 13 includes a fuel tank that can carry the booster fuel 14 and a jet nozzle 15 opened at the bottom of the fuel tank to provide thrust for the underwater sealing drilling anchor after ignition and launch. A horn-shaped gas nozzle 16 can also be installed at the jet nozzle 15 to improve the stability of the gas jet. Qualitatively, this underwater plugging drilling anchor eliminates the tail cable design, greatly improving flight stability. By setting the arresting section 12, the underwater plugging drilling anchor itself can act as an arresting object, improving plugging efficiency. At the same time, the booster section 13 provides sufficient kinetic energy to the overall structure, allowing the drilling section to deeply penetrate the bottom mud to provide anchoring force for the arresting section 12. This solves the problem that existing drilling anchor arresting devices require an anchor cable at the tail, resulting in insufficient anchor flight and poor plugging effect.

[0034] In actual use, the front part of the arresting section 12 often follows the drilling section and penetrates into the bottom mud to form a stronger anchoring force. In order to facilitate the penetration and mass production of the arresting section 12, in a preferred embodiment, the arresting section 12 is a cylindrical structure. The cylindrical structure of the arresting section 12 is easy to manufacture and also facilitates the launch vehicle 22 to launch.

[0035] Furthermore, rescue personnel can adjust the center of gravity to allow the underwater sealing anchor to penetrate the water almost perpendicularly to the ground, further increasing the final penetration depth.

[0036] In one embodiment, the barrier section 12 can be made of metal, using the weight of the metal to increase the final penetration depth; however, in order to reduce costs, in a preferred embodiment the barrier section 12 is a cement column; using cement as the main material of the barrier section 12 not only saves costs, but also allows for the prefabrication of cement columns of different diameters according to actual needs, in order to cope with complex and ever-changing site conditions.

[0037] In both the above-mentioned design concepts of the arresting section 12 being a cylindrical structure and the arresting section 12 being a cement column, the drilling section of each technical solution can be optimized to reduce air resistance encountered during flight. In a preferred embodiment, the drilling section includes a conical warhead at the front end. The conical warhead is usually made of metal material and has a smooth outer surface, which can reduce air resistance during flight.

[0038] To further reduce resistance during water travel, in a preferred embodiment, the conical projectile includes a projectile housing 2 and a switch. The projectile housing 2 has an air supply chamber inside, and an air film generating hole 1 on the projectile housing 2 that allows the air supply chamber to communicate with the outside. The air supply chamber has an air supply component 11 that can generate jet airflow. The jet airflow is then ejected outward through the air film generating hole 1 to form an air film that can adhere to the surface of the projectile housing 2. The switch controls the working time of the air supply component 11 to prevent it from generating resistance when it ejects air in the air.

[0039] In one embodiment, the gas film generating hole 1 can be opened in the middle or rear section of the projectile shell 2, which can also achieve the above-mentioned effect. However, in order to further improve the drag reduction effect, in a more preferred embodiment, the gas film generating hole 1 is opened in the front of the projectile shell 2, so that the gas film can cover more area and improve the drag reduction effect.

[0040] Therefore, in one embodiment, the air film generating hole 1 can be uniformly opened in the circumferential direction at the front of the projectile housing 2 to achieve the above-mentioned technical objective; however, since the part of the projectile housing 2 that is most affected by water flow during travel is the tip of the top, in another more preferred embodiment, the air film generating hole 1 is located at the tip of the front of the projectile housing 2 to maximize the drag reduction capability brought by the air film and improve the drag reduction effect.

[0041] Based on the above design, the gas supply assembly 11 can be made of compressed gas or gunpowder 3. However, in order to reduce costs, the gas supply assembly 11 can be made of gunpowder 3 and ignition wire 4. The gunpowder 3 is inexpensive and easy to mass-produce. Moreover, the process of generating gas by the gunpowder 3 is rapid, which is suitable for use in high-speed flying warheads. The ignition wire 4 passes through the side wall of the gas supply chamber and is connected to the switch, which facilitates the switch ignition. Since the gunpowder 3 is relatively easy to trigger, the corresponding switch is also easier to design, thus meeting the needs of reducing costs and simplifying the structure. In one embodiment, the switch can be a remote sensing signal receiver to receive instructions from shore personnel. After launch, the personnel can manually remotely ignite the gunpowder column 3 and control the ignition time of the gunpowder column 3. This design is more flexible, but the switch structure is more complex and the design cost is higher. Moreover, the signal reception may be poor when the launch distance is too far. Therefore, in a preferred embodiment, the warhead shell 2 is also provided with a water inlet cavity. The switch is connected to the ignition device 5, the water immersion sensor 9 that can sense water and generate a water signal, and the signal converter 7 that can convert the water signal into an electrical signal are all located inside the receiving cavity provided in the warhead shell. The signal converter 7 is connected to the water immersion sensor 9 and the ignition device 5 through the signal transmission line 8 to convert the water signal from the water immersion sensor 9 into an electrical signal and send it to the ignition device 5 to ignite the gunpowder column 3. The gunpowder column 3 then generates a large amount of gas in the gas supply chamber. The water immersion sensor 9 is located in the water inlet cavity to avoid water from interfering with the operation of other electrical components.

[0042] Based on the above design, in order to avoid the water immersion sensor 9 failing to detect water in time and thus affecting the jetting time, in a preferred embodiment, multiple water inlet channels 10 are formed circumferentially on the wall of the water inlet chamber. The water inlet channels 10 communicate with the water inlet chamber so that external water can come into contact with the water immersion sensor 9 inside the water inlet chamber through the water inlet channels 10, thereby generating a water signal. The arrangement of multiple water inlet channels 10 ensures that the projectile shell 2 can detect water in time through the water inlet channels 10 regardless of the angle at which it enters the water, thus generating a water signal and ensuring stable operation. At the same time, a sealed protective shell 6 can be set to protect other internal components.

[0043] In practical use, the staff first prefabricates the required barrier at a nearby cement plant, and then assembles the underwater sealing drill anchors on-site. The assembled batch of underwater sealing drill anchors is loaded onto the launch vehicle 22. The launch vehicle 22 is driven to the designated position on the embankment and the launch attitude is adjusted. The cluster launch device 23 on the launch vehicle 22 is used to launch multiple underwater sealing drill anchors continuously towards the breach in the embankment. After launch, the multiple underwater sealing drill anchors use their own barrier sections 12 as barrier piles to form a barrier array with each other. The rescue personnel can then start throwing water-blocking materials 18 to gradually seal the breach.

[0044] A second aspect of the present invention provides an underwater blocking method, such as... Figure 2 As shown, the blocking method includes launching underwater sealing drilling anchors towards the breach in the form of a projectile. The underwater sealing drilling anchors are driven into the seabed mud and anchored, with the portion of the anchor not inserted into the mud serving as a blocking pile. A fence structure formed by multiple sealing drilling anchors performs the blocking task. This underwater blocking method can use the underwater sealing drilling anchors described above, but these anchors eliminate the tail cable design, greatly improving flight stability. By setting the blocking section 12, the underwater sealing drilling anchor itself can act as a blocking object, improving blocking efficiency. Simultaneously, the booster section 13 provides sufficient kinetic energy to the overall structure, allowing the drilling section to deeply penetrate the seabed mud and provide anchoring force to the blocking section 12. This solves the problem of existing drilling anchor blocking devices requiring a tail cable, leading to insufficient anchor flight and poor blocking effect.

[0045] A third aspect of this invention provides a method for closing a breach in a dam, such as... Figure 2 As shown, this method for closing a dam breach can be implemented based on the aforementioned underwater blocking method, or by using the aforementioned underwater sealing anchor. This method includes launching underwater sealing anchors at the breach via projectiles, causing them to embed themselves in the underwater mud. The portions of the underwater sealing anchors not inserted into the mud serve as retaining piles. Multiple sealing anchors form a fence structure, and water-blocking materials 18 are deployed upstream of the fence structure. Because this method... The underwater plugging drilling anchor adopted by the company abandons the tail anchor cable design, which greatly improves flight stability. By setting the arresting section 12, the underwater plugging drilling anchor itself can act as an arresting object, improving the plugging efficiency. At the same time, the setting of the booster section 13 provides sufficient kinetic energy to the overall structure, allowing the drilling section to deeply penetrate the bottom mud to provide anchoring force for the arresting section 12. This solves the problem that existing drilling anchor arresting devices need to set the tail anchor cable, which leads to insufficient stability of the anchor body and poor plugging effect.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. An underwater occluding earth anchor, characterized in that, The underwater blocking earth anchor for abandonment tail anchor cable comprises an earth boring section for penetrating into the underwater soil, a blocking section and a boosting section, the earth boring section is arranged at the front end of the blocking section so that the blocking section can form blocking piles on the upper part of the underwater soil after the earth boring section penetrates into the underwater soil, the boosting section comprises a fuel tank capable of containing fuel and a jet port formed at the bottom of the fuel tank to provide thrust for the underwater blocking earth anchor; the earth boring section comprises a conical bullet head at the front end, the conical bullet head comprises a bullet shell with a gas supply chamber and a switch, the bullet shell is provided with a gas film generating hole capable of connecting the gas supply chamber with the outside, the gas supply chamber is provided with a gas supply assembly capable of generating jet gas flow, the switch is connected with the gas supply assembly to control the gas supply assembly to spray gas outward through the gas film generating hole after entering the water to form a gas film outside the bullet shell, the bullet shell is further provided with a water inlet cavity, the switch comprises an execution assembly capable of triggering the gas supply assembly to work, a water immersion sensor capable of sensing water and generating a water signal in the water inlet cavity and a signal converter capable of converting the water signal into an electric signal, the execution assembly and the signal converter are arranged in a containing cavity in the bullet shell, the signal converter is connected with the water immersion sensor and the execution assembly to convert the water signal of the water immersion sensor into an electric signal and send it to the execution assembly so that the gas supply assembly works.

2. The underwater occluding geo-anchor of claim 1, wherein, The blocking section is in a cylindrical structure.

3. The underwater occluding geo-anchor according to claim 1 or 2, characterized in that, The blocking section is a cement cylinder.

4. The underwater occluding geo-anchor of claim 1, wherein, The gas film generating hole is formed at the front part of the bullet shell.

5. The underwater occluding geo-anchor of claim 4, wherein, The gas film generating hole is located at the front tip of the bullet shell.

6. The underwater occluding geo-anchor of claim 1, wherein, A plurality of water inlet channels are formed on the cavity wall of the water inlet cavity in the circumferential direction.

7. A method of underwater barrier, characterized by, The underwater blocking earth anchor is launched in the form of a projectile to the breach, the underwater blocking earth anchor is penetrated into the underwater soil to take root, the part of the underwater blocking earth anchor not inserted into the underwater soil is used as a blocking pile, and a fence structure formed by a plurality of blocking earth anchors is used to perform the blocking task.

8. A method of closing a breach in a dam, characterised in that, The underwater blocking earth anchor is launched in the form of a projectile to the breach, the underwater blocking earth anchor is penetrated into the underwater soil to take root, the part of the underwater blocking earth anchor not inserted into the underwater soil is used as a blocking pile, a fence structure is formed by a plurality of blocking earth anchors, and water blocking objects are thrown upstream of the fence structure.

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