Barb type anchor head for quickly plugging gap of dam

Abstract

An anchor head shell wraps the outer side of an anchor head body, and a steel movable drill bit is located in the middle of the head of the anchor head and used for driving an explosive detonation device under the extrusion pressure of a soil body when the anchor head is hit to the ground and makes contact with the soil body; the firing pin detonating device is positioned at the tail part of the steel movable drill bit and is used for detonating the detonator; the detonators are located at the front ends of the theme explosives and used for detonating the theme explosives The main body explosive is positioned behind the detonator and is used for generating explosive shock waves to pop out the barb device; and the barb device is positioned around the anchor head and is used for reinforcing the friction force between the anchor head and the soil body. When embankment breach enclosing is carried out, high-risk overwater operation is not needed, remote launching is carried out through an anchor head launching device similar to a rocket launcher launching cylinder, onshore launching can be achieved, and safety is high; and impact waves generated by explosion of the explosive are utilized to push the barb device to pierce into a soil body, so that rapid fixation and reinforcement are realized.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to a barbed anchor head for quickly plugging a gap in a dam. Background Art

[0002] Water conservancy projects are a very important part of my country's social and economic development process. They are related to the progress of social production and the quality of people's daily life. Therefore, they have received great attention and importance from the country. However, in terms of the current reality, due to the influence of natural disasters, human factors and other factors, water conservancy dams frequently break, causing the collapse of the embankment. When reservoirs overflow and dam pipes burst, they will first cause a breach. If the breach continues to expand, it may cause the collapse of the entire embankment, which will not only cause huge economic losses to the construction unit, but also have a serious impact on the lives of the surrounding people and regional economic development. Therefore, once a breach occurs, the embankment plugging construction technology needs to play a role.

[0003] At present, the common methods of breach containment include stone throwing method, wire cage or bamboo wire cage method, broom bundle method, piling method, shipwreck blocking method and cover blocking method.

[0004] The traditional method of blocking embankment breaches is to throw large rocks or drive piles into the breach and fill the gaps with plugging materials, which is inefficient and unsafe.

[0005] Through the above analysis, the problems and defects of the prior art are as follows: (1) Existing containment methods have poor safety and require water operations.

[0006] (2) Traditional containment methods make it difficult to quickly and accurately contain the breach. Summary of the invention

[0007] In view of the problems existing in the prior art, the present invention provides a barbed anchor head for quickly plugging a breach in a dam.

[0008] The invention solves the technical problem by adopting a solution: a barbed anchor head for rapid plugging of dam breaches, comprising an anchor head shell, the front end of which is conical, and an anchor cable connecting ring is arranged at the tail end of the anchor rod shell.

[0009] A drill hole is also provided at the front end of the anchor head shell, in which a movable drill bit is installed, and the tail end of the movable drill bit is connected to the bottom of the drill hole by a drill spring, and pushing the movable drill bit can compress the drill spring; a penetrating positioning pin hole is provided on the side wall of the drill hole, and the positioning pin hole extends to the movable drill bit, and an anchor bolt is inserted into the positioning pin hole to fix the position of the movable drill bit in the drill hole by the anchor bolt.

[0010] A plurality of explosive chambers are arranged in the anchor head shell, and the plurality of explosive chambers are evenly arranged along the central axis of the anchor head shell; a plurality of barb holes are evenly arranged outside the explosive chambers; the bottoms of the barb holes are connected to the explosive chambers through the impact holes; the outer ends of the barb holes are inclined toward the tail end of the anchor head shell and penetrate the anchor head shell; a front stop is arranged at the outer ends of the barb holes; a barb device is placed in the barb hole, the barb device comprises a barb body, the width of the barb body is the same as the width between the front stops; a barb end stop is arranged at the tail end of the barb body, and the width of the barb end stop is greater than the width between the impact hole and the front stop; a detonating device is installed on the explosive chamber, and adjacent explosive chambers are connected in series through a fuse; a firing pin is installed at the tail end of a movable drill bit, a firing pin hole is arranged at the bottom of the drill bit hole, and the firing pin passes through the firing pin hole to connect the detonating device of the adjacent explosive chamber.

[0011] Furthermore, the detonating device includes a bayonet plug, a detonator shell, a delay charge, a positive explosive and a reinforcing charge. The main explosive is filled in the explosive chamber, and the bayonet plug, the delay charge, the positive explosive and the reinforcing charge are arranged in sequence in the detonator shell. An energy-gathering hole is provided between the reinforcing charge and the main explosive to connect them. The firing pin and the fuse are installed in the bayonet plug to connect the delay charge. The main explosive is TNT explosive.

[0012] Furthermore, the barb body is provided with a plurality of bayonet slots, in which bayonet pins are installed, the end of the bayonet pin facing the outer end of the barb hole is hinged on the barb body, the end of the bayonet pin facing the inner end of the barb hole is a movable end, and a top spring is installed between the bayonet pin and the barb body, so that the movable end of the bayonet pin protrudes to the outside of the barb body through the top spring.

[0013] Furthermore, the anchor head shell is made of precipitation hardened stainless steel 301 series, and the main body is cylindrical as a whole.

[0014] Furthermore, the tip angle of the movable drill bit is 60°, and the rear end of the movable drill bit is connected to a spring and a firing pin. The diameter of the firing pin is not greater than 2 mm and the length is not less than 40 mm. After the drill bit spring is compressed, the firing pin hits the detonator to ignite the main explosive. After the drill bit spring is compressed, the conical surface of the movable drill bit is aligned with the conical inclined line at the front end of the anchor head shell.

[0015] Furthermore, a breaking part is arranged on the anchor bolt. After the anchor bolt is inserted into the positioning pin hole, the breaking part is located between the anchor head shell and the movable drill bit. The anchor bolt adopts a wooden bolt.

[0016] Furthermore, the anchor head shell is filled with sand and gravel to increase the weight of the anchor head, and the sand and gravel are fine sand with a particle size of less than 0.35 mm.

[0017] Beneficial effects of the invention: The invention develops a novel barbed anchor head and a method for blocking dike breaches by studying the shock waves generated by explosive explosions and the blocking of dike breaches in water conservancy projects. With the help of physical and chemical means, the anchor head is driven into the soil below the water surface at the dike breach and the barbed device is triggered to ensure that the anchor head is not easy to be pulled out after being driven into the soil, and at the same time prevent the anchor head from losing its function due to being washed by water flow, thereby improving the success rate of blocking dike breaches.

[0018] The present invention completely changes the current situation that traditional dike breach containment requires water operations, reduces the danger, and will not cause excessive losses even if the anchor head fails to be launched. The anchor head in the present invention can be applied to various soft soil foundations. Due to the presence of the barb device, the friction between the anchor head and the soil is increased, making it difficult for the anchor head to be pulled out after being driven into the soil. The explosion-triggered barb device used in the present invention can quickly trigger the barb device, thereby increasing the efficiency of containment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the anchor head shell; Figure 4 It is a schematic diagram of the movable drill bit and anchor bolt; Figure 5 It is a diagram of the structure of the detonator; Figure 6 It is a diagram of the structure of the explosive transmission device; Figure 7 yes Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0020] Numbers in the figure: 1. locating pin hole; 2. drill hole; 3. barb hole; 4. cavity; 5. explosive chamber; 6. threaded hole; 7. movable drill bit; 8. anchor bolt; 9. drill spring; 10. firing pin; 11. bayonet plug; 12. detonator shell; 13. delay charge; 14. positive explosive; 15. reinforcing charge; 16. energy-gathering hole; 17. fuse; 18. threaded column; 19. anchor cable connecting ring; 20. barb device; 21. bayonet pin; 22. top spring; 23. barb end stopper; 24. impact hole; 25. front stopper. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below.

[0022] Example 1: Figure 1As shown, the present invention provides a bullet-shaped barbed anchor head, which is used for rapid plugging of gaps in dams (weirs), and can also be used for plugging gaps in various weirs and ponds. The anchor head is driven into the soil below the water surface at the breach of the dam through a launching device, and the barbed device 20 is ejected by the impact of explosives inside the anchor head, thereby ensuring that the anchor head is not easily pulled out after being driven into the soil, and preventing the anchor head from losing its function due to being scoured by water flow, thereby improving the success rate of dike breach containment.

[0023] The launching device can be launched by physical and chemical means, such as a rocket launcher or other launching device.

[0024] like Figure 2 and Figure 3 As shown, the barbed anchor head includes an anchor head shell, an active drill bit 7, a main explosive and barbs, wherein the anchor head shell is in the shape of a bullet or a shell, the front end of which is equipped with an active drill bit 7, and the tail end is provided with an anchor cable connecting ring 19, through which the anchor cable is connected, and after the anchor head is fixed, an interception net is formed through the anchor cable or the containment material is directly thrown to the breach through the anchor cable to complete the containment of the breach. The anchor head shell is made of precipitation hardened stainless steel 301 series, and the main body is cylindrical as a whole.

[0025] The front end of the anchor head shell is set into a conical structure, and a drill hole 2 is set in the center of the conical structure. The movable drill bit 7 is inserted into the drill hole 2. The movable drill bit 7 is connected to the drill hole 2 through a drill spring 9. The drill spring 9 adopts a thrust spring, which can push the movable drill bit 7 outward in a natural state without the drill bit separating from the drill hole 2.

[0026] like Figure 2-4 As shown, a positioning pin hole 1 is also provided between the movable drill bit 7 and the drill hole 2. An anchor bolt 8 is inserted into the positioning pin hole 1 to fix the position of the movable drill bit 7 in the drill hole 2. The positioning pin hole 1 completely penetrates the drill hole 2 and extends to the movable drill bit 7.

[0027] The anchor bolt 8 is a wooden bolt, which is a cylindrical wooden stick with a length of 5.6 cm and a diameter of 1 cm, and the surface of the wooden bolt is polished and smooth. A breaking portion is provided on the anchor bolt 8, and the breaking portion is a circle of shallow grooves provided on the cylindrical wooden bolt, and the wooden bolt can be easily broken along the shallow grooves when necessary. When the anchor bolt 8 is inserted into the positioning pin hole 1 on the movable drill bit 7 and the drill hole 2, the breaking portion corresponds to the contact portion between the adjacent surfaces of the movable drill bit 7 and the drill hole 2.

[0028] The anchor cable connecting ring 19 is connected to the anchor head shell by a threaded structure. Specifically, a threaded hole 6 is set in the middle of the tail end of the anchor head shell, a threaded column 18 is set at the front end of the anchor cable connecting ring 19, and a 3 / 4 cylindrical ring is set at the rear end of the threaded column 18 as a connecting ring for connecting the anchor cable. The anchor cable connecting ring 19 is installed in the threaded hole 6 at the tail end of the anchor head shell through the threaded column 18. The anchor cable connecting ring 19 adopts an integrated steel structure to ensure that it cannot be broken by the anchor cable during containment. The size of the anchor cable connecting ring 19 is designed according to actual needs. In this embodiment, a 3 cm threaded column 18 and a 5 cm diameter cylindrical ring are used.

[0029] In the anchor head shell, multiple explosive chambers 5 are evenly arranged and fixed along the central axis of the cylindrical shell, multiple barb holes 3 are evenly fixed in a circumferential array around each explosive chamber 5, and impact holes 24 are arranged between the bottom of the barb holes 3 and the explosive chamber 5. After the main explosive in the explosive chamber 5 explodes, the impact force generated by the explosion of the explosive is transmitted to the barb holes 3 through the impact holes 24.

[0030] like Figure 2 and Figure 7 As shown, a barb device 20 is placed in the barb hole 3, and the barb device 20 includes a barb body, and a barb end stop 23 is provided at the tail end of the barb body, and the width of the barb end stop 23 is greater than the width of the impact hole 24. A front stop 25 is provided at the outer port position of the barb hole 3, and the front stop 25 can be an annular stop provided on the inner wall of the barb hole 3, and the width of the barb body is not greater than the width of the gap between the front stops 25. When impacted, the barb body can pass through the gap between the front stops 25 and protrude outside the anchor head shell. The size of the barb end stop 23 is greater than the gap between the front stops 25. When the barb body passes out from between the front stops 25, the front stops 25 can block the barb end stop 23, so that the tail end of the barb device 20 remains in the barb hole 3, and the connection between the barb device 20 and the anchor head shell is maintained.

[0031] The barb hole 3 adopts a backward tilted structure, the inner end of the barb hole 3 tilts toward the drill bit, and the outer end of the barb hole 3 tilts toward the tail end of the anchor head shell. 4-6 barb holes 3 are arranged along the cylinder of the anchor head shell at an angle of 60°.

[0032] The barb body is also provided with a plurality of bayonet pin 21 grooves, in which bayonet pins 21 are installed, and the end of bayonet pin 21 facing the outer end of barb hole 3 is hinged on barb body, and the end of bayonet pin 21 facing the inner end of barb hole 3 is a movable end, and a top spring 22 is installed between bayonet pin 21 and barb body, and the movable end of bayonet pin 21 is protruded to the outer side of barb body by top spring 22. When barb body pops outward, front stop 25 presses bayonet pin 21, so that the movable end of bayonet pin 21 compresses spring, so that bayonet pin 21 temporarily shrinks into bayonet pin 21 groove, and when barb body completely pops out barb hole 3, the movable end of bayonet pin 21 is lifted up and unfolded by spring, so as to prevent barb body from falling back into barb hole 3.

[0033] The bayonet 21 slots and bayonet 21 are arranged in three groups equidistantly along the barb body, with 2 to 3 in each group and a spacing of 2 cm. The spring material is carbon spring steel wire GB 4357 D group to ensure that the spring has sufficient strength.

[0034] The main explosive is filled in the explosive chamber 5, and a detonating device is provided on the side of the explosive chamber 5 facing the movable drill bit 7. A striker 10 is installed at the tail end of the movable drill bit 7, and a striker 10 hole is provided at the bottom of the drill hole 2. The striker 10 is connected to the detonating device of the adjacent movable drill bit 7 through the striker 10 hole. The adjacent explosive chambers 5 are connected in turn by fuses 17, that is, one end of the fuse 17 is connected to the explosive chamber 5 on the front side, and the other end is connected to the detonating device of the explosive chamber 5 on the rear side.

[0035] like Figure 5 and Figure 6 As shown, the detonating device includes a bayonet plug 11, a detonator shell 12, a delay charge 13, a positive explosive 14 and a reinforcing charge 15. The main explosive is filled in the explosive chamber 5, and the bayonet plug 11, the delay charge 13, the positive explosive 14 and the reinforcing charge 15 are arranged in sequence in the detonator shell 12. An energy-gathering hole 16 is arranged at the tail end of the detonator shell 12, and the reinforcing charge 15 is connected to the main explosive by an energy-gathering hole 16. The firing pin 10 and the fuse 17 are sleeved in the bayonet plug 11 to connect the delay charge, and the firing pin 10 and the fuse 17 are connected to the inside of the detonator shell 12 through the bayonet plug respectively. When the anchor head is launched and driven into the soil, the movable drill bit 7 breaks the anchor bolt 8 due to the resistance of the soil and moves into the drill hole 2, thereby driving the firing pin 10 to hit the detonator of the adjacent explosive chamber 5, and the delay charge 13, the positive detonator 14 and the reinforcing charge 15 in the detonator shell 12 of the detonator are ignited in sequence, and then the main explosive in the explosive chamber 5 is ignited through the energy-gathering hole 16. After the main explosive on the front side explodes, the connected fuse 17 is ignited, and the detonator of the rear explosive chamber 5 is ignited through the fuse 17, and then the main explosive in the rear explosive chamber 5 is ignited, and the impact force of the explosion of the main explosive ejects the corresponding barb device 20.

[0036] Specifically, the detonator used as the detonating device is arranged from front to back as follows: a bayonet plug 11 with a gradually decreasing cross-section, a delay charge 13, a positive explosive 14, a reinforcing charge 15, and an energy-gathering hole 16. The outside is wrapped by a detonator shell 12, and uses TNT metal salt delay charge 13, lead azide positive explosive 14, and nitro compound reinforcing charge 15.

[0037] Furthermore, the tip angle of the movable drill bit 7 is 60°, and the rear end of the movable drill bit 7 is connected to a spring and a firing pin 10. The diameter of the firing pin 10 is not greater than 2 mm and the length is not less than 40 mm. The ultimate compression degree of the drill bit spring 9 is to ensure that the firing pin 10 can contact the delay agent 13 used for detonation in the detonator. At the same time, when the drill bit is not in a working state, it is slightly offset forward, which is equal to the compression length of the drill bit spring 9 when it is working, to ensure that the front end inclined line of the anchor head shell is aligned in a working state.

[0038] In the anchor head shell, the explosive chamber 5 and the cavity 4 outside the barb hole 3 can be filled with sand and gravel to increase the anchor head counterweight. The sand and gravel filling should ensure that the soil itself is as heavy as possible. It is best to use fine sand with a particle size of less than 0.35 mm.

[0039] The steel material adopted by the present invention is precipitation hardening stainless steel 301 series, which has good forming performance and good weldability. The designed movable drill bit 7 angle is convenient for production and has a small angle, so it is easy to drive into the soil.

[0040] A threaded column 18 is provided at the front end of the steel anchor cable connecting ring 19 used in the present invention, which cooperates with the threaded hole 6 at the rear end of the steel shell and is detachable, thereby facilitating modularization. The wooden bolts used are polished to greatly improve their smoothness. Compared with steel, wood is lighter in weight, is easy to pull out when used, does not rust and has a low cost.

[0041] The delay charge 13 used in the present invention can prevent the firing pin 10 from instantly detonating the detonator when the steel movable drill bit 7 hits the ground, thereby causing the main explosive to explode and the anchor head to fail, thereby avoiding the situation where the barb device 20 is ejected before the anchor head enters the soil; the energy-gathering hole 16 used can enhance the detonation effect of the positive explosive 14 and save the positive explosive 14.

[0042] The barb device 20 used in the present invention can be extended outward in one direction. After being extended outward, it will not return to the barb hole 3 due to the action of the latch 21. At the same time, three latches 21 are provided to prevent the barb from losing its function due to the failure of the explosion shock wave to completely knock out the barb when there are stones in the external soil.

[0043] The present invention adopts sand and gravel with small particle size and small inter-particle pores, so the weight will be large. The filling can make full use of the internal space of the anchor head, increase the deadweight of the anchor head, save steel and reduce costs. The anchor head combines integration and modularization, and can be produced in blocks during production to increase production efficiency. It is easy to repair and replace parts when local parts are damaged, and it can also be recycled.

[0044] The present invention completely changes the current situation that water operations are required for traditional dike breach containment, reduces the danger, and does not cause excessive losses even if the anchor head fails to be launched.

[0045] The anchor head of the present invention can be applied to various soft soil foundations. Due to the presence of the barb device 20, the friction between the anchor head and the soil is increased, so that the anchor head is not easily pulled out after being driven into the soil.

[0046] The explosion-triggered barb device 20 used in the present invention can quickly trigger the barb device 20, thereby increasing the efficiency of containment.

[0047] The expected benefits and commercial value of the technical solution of the present invention after transformation are: The sand and gravel filling adopted in the present invention saves expensive steel. Sand and gravel materials are abundant and low in price, which reduces the manufacturing cost of the anchor head and can be recycled to further reduce the cost. The present invention can improve the containment efficiency and reduce the losses caused by the breach. The containment materials are connected in series with anchor cables, which can reduce the use of containment materials and reduce costs compared with traditional plugging methods.

[0048] The technical solution of the present invention fills the technical gap in the industry at home and abroad: the combination of precise blasting technology and anchor heads for use in dike breach containment has not been seen at home and abroad.

[0049] The invention overcomes the high risk of water operations and the problem that the containment materials may be washed away by a high water flow rate, and solves the problem of low efficiency of conventional containment methods.

[0050] Regarding blasting technology, there is a technical prejudice that blasting will cause harm. The blasting technology adopted in the present invention is a controlled blasting technology, which strictly controls the amount of explosives, uses wooden bolts to prevent accidents during storage, and strictly controls safety, thereby overcoming the technical prejudice existing in blasting technology.

[0051] Based on the technology of the present invention, a method for quickly and accurately blocking the breach in the dike is developed to prevent the breach from further expanding and causing the collapse of the entire dike, resulting in greater losses. The specific method of use is as follows: Step 1: Survey the breach location, determine the breach location, and launch the anchor using the anchor launching device; Step 2: After the anchor head is launched, it reaches the breach and contacts the ground below the water surface at the breach. During the process of driving into the ground, the steel movable drill bit 7 is squeezed with the ground and subjected to pressure, so it will quickly compress the spring and drive the striker 10 to move toward the detonator (detonator). When the spring is compressed to a certain limit, the striker 10 hits the detonator (detonator); Step 3: The firing pin 10 first strikes the delay charge 13, and the delay charge 13 burns. When the delay charge 13 burns to the end, the positive explosive 14 is detonated, and the positive explosive 14 ignites the reinforcing charge 15, and the main explosive is detonated under the support of the energy-gathering hole 16; Step 4: The main explosive explodes to generate an explosion shock wave that pushes the barbs in the first barb device 20 into the soil; Step 5: When the barb pierces the soil, the aperture at the exit is smaller than the width of the barb plus the bayonet pin 21, so the bayonet pin 21 is squeezed by the front buckle, compressing the bayonet pin 21 and the spring, and exiting from the exit when the width is smaller than the aperture. After exiting from the exit, the bayonet pin 21 is pushed because the spring wants to return to its original state, and the width is larger than the aperture again. After the barb pierces the soil, the barb is affected by gravity and tends to return to the hole. However, at this time, the spring acts, and the bayonet pin 21 pops out to expand the tissue barb back into the hole, realizing the unidirectional extension of the barb. Step 6: After the first section of explosives explodes, the fuse 17 is ignited, and the fuse 17 transmits the explosion to the next section of the detonator (detonator), which then detonates the detonator (detonator), and the detonator (detonator) then detonates the next section of the main explosive, thereby completing the fixing of the anchor head in the soil; Step 7: After the anchor head is fixed, throw the containment material to the breach through the anchor cable to complete the containment of the breach; Step 8: After the containment is completed, if you want to recycle and reuse the anchor head, you can manually return the barb to the hole, unscrew the rear bolt when filling the explosives again, and fill the explosives and detonators through the fire hole. If there are any damaged parts, they can be replaced, and the recycling is completed.

[0052] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A barbed anchor head for rapid plugging of dam breaches, characterized in that: The invention comprises an anchor head shell, the front end of the anchor head shell is conical, and the rear end of the anchor rod shell is provided with an anchor cable connecting ring (19); the front end of the anchor head shell is also provided with a drill hole (2), a movable drill bit (7) is installed in the drill hole (2), the rear end of the movable drill bit (7) is connected to the bottom of the drill hole (2) by a drill spring (9), and the movable drill bit (7) can be pushed up to compress the drill spring (9); a through positioning pin hole (1) is provided on the side wall of the drill hole (2), the positioning pin hole (1) extends to the movable drill bit (7), an anchor bolt (8) is inserted into the positioning pin hole (1), and the position of the movable drill bit (7) in the drill hole (2) is fixed by the anchor bolt (8); a plurality of explosive chambers (5) are provided in the anchor head shell, the plurality of explosive chambers (5) are evenly arranged along the central axis of the anchor head shell, and a plurality of barb holes (3) are evenly arranged on the outside of the explosive chambers (5), and the bottom of the barb holes (3) is passed through. The explosive chamber (5) is connected through the impact hole (24), the outer end of the barb hole (3) is inclined toward the rear end of the anchor head shell and penetrates the anchor head shell, and a front stopper (25) is arranged at the outer end of the barb hole (3); a barb device (20) is placed in the barb hole (3), the barb device (20) comprises a barb body, the width of the barb body is the same as the width between the front stopper (25), and a barb end stopper (23) is arranged at the rear end of the barb body, and the width of the barb end stopper (23) is greater than the width between the impact hole (24) and the front stopper (25); an initiation device is installed on the explosive chamber (5), adjacent explosive chambers (5) are connected in series through a fuse (17), a striker (10) is installed at the rear end of the movable drill bit (7), a striker (10) hole is arranged at the bottom of the drill bit hole (2), and the striker (10) passes through the striker (10) hole to connect the initiation device of the adjacent explosive chamber (5).

2. The barbed anchor head for rapid plugging of dam breaches according to claim 1, characterized in that: The detonating device comprises a bayonet plug (11), a detonator shell (12), a delay charge (13), a positive explosive (14) and a reinforcing charge (15). The main explosive is filled in the explosive chamber (5), and the bayonet plug (11), the delay charge (13), the positive explosive (14) and the reinforcing charge (15) are arranged in sequence in the detonator shell (12). An energy-gathering hole (16) is provided between the reinforcing charge (15) and the main explosive to communicate with each other. The firing pin (10) and the fuse (17) are sleeved in the bayonet plug (11) and connected to the delay charge.

3. The barbed anchor head for rapid plugging of dam breaches according to claim 1, characterized in that: The barb body is also provided with a plurality of bayonet slots, in which bayonet pins (21) are installed, and the end of the bayonet pin (21) facing the outer end of the barb hole (3) is hinged on the barb body, and the end of the bayonet pin (21) facing the inner end of the barb hole (3) is a movable end. A top spring (22) is installed between the bayonet pin (21) and the barb body, and the movable end of the bayonet pin (21) protrudes to the outside of the barb body through the top spring (22).

4. The barbed anchor head for rapid plugging of dam breaches according to claim 1, characterized in that: The anchor head shell is made of precipitation hardened stainless steel 301 series, and the main body is cylindrical as a whole.

5. The barbed anchor head for rapid plugging of dam breaches according to claim 1, characterized in that: The tip angle of the movable drill bit (7) is 60°. The rear end of the movable drill bit (7) is connected to a spring and a striker (10). The striker (10) has a diameter of no more than 2 mm and a length of no less than 40 mm. After the drill bit spring (9) is compressed, the striker (10) strikes the detonator to ignite the main explosive. After the drill bit spring (9) is compressed, the conical surface of the movable drill bit (7) is aligned with the conical inclined line at the front end of the anchor head shell.

6. The barbed anchor head for rapid plugging of dam breaches according to claim 1, characterized in that: The anchor bolt (8) is provided with a breaking portion, and after the anchor bolt (8) is inserted into the positioning pin hole (1), the breaking portion is located between the anchor head shell and the movable drill bit (7).

7. The barbed anchor head for rapid plugging of dam breaches according to claim 6, characterized in that: The anchor bolt (8) is a wooden bolt.

8. The barbed anchor head for rapid plugging of dam breaches according to claim 1, characterized in that: The anchor head shell is filled with sand and gravel to increase the weight of the anchor head. The sand and gravel are fine sand with a particle size of less than 0.35 mm.

9. The barbed anchor head for rapid plugging of dam breaches according to claim 2, characterized in that: The main explosive is TNT explosive.

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