Quick plugging device for dam breach

Abstract

The invention relates to a quick plugging device for a dam breach, and belongs to the technical field of flood control devices. Comprising a plugging cage, the plugging cage comprises a cylindrical steel reinforcement framework cage and a wire mesh cage which are coaxial, balloons are arranged in the wire mesh cage, and super absorbent resin materials are arranged in the balloons; one axial end of the plugging cage is fixedly connected with a fixed pile through an iron chain; and the tensioning and loosening device is fixedly arranged on the iron chain. During use, the balloons are inflated to fully expand the iron wire mesh cage, and the fixing piles are fixed on a dam which is more than 20 meters away from a dam breach; the blocking cage is put into river water from the upstream position of the river and floats to the dam breach position; when the dam breach is blocked, the balloon is broken, the super absorbent resin material absorbs water and expands to fill the wire mesh cage, the blocking cage forms a continuous retention wall structure through the iron chain, and blocking of the dam breach is achieved. The problems that an existing dam flood breach sealing technology is low in safety coefficient, high in plugging cost and large in plugging workload are solved.

Description

Technical Field

[0001] The invention relates to the technical field of flood control devices, and in particular to a rapid plugging device for dam breaches. Background Art

[0002] Affected by the monsoon climate and topographic factors, my country is prone to floods every summer, and the central and eastern regions of my country are prone to floods. When dealing with dam breaches, many areas use large trucks loaded with heavy objects such as earth and rocks for temporary blocking. However, this operation poses certain risks to the driver's personal safety. At the same time, after the driver abandons the vehicle, the position of the truck in the water flow is difficult to control, and the blocking effect is not good. In response to this situation, this project uses the water absorption characteristics of resin materials, steel bars, iron wires and balloons to produce a water-absorbent resin dam breach blocking device that is easy to store and transport, easy to operate, and has good use effect. Summary of the invention

[0003] In order to solve the problems of high manpower and material costs, long time required for sealing breaches, high labor intensity for sealing, and high safety risks for rescue workers in sealing technologies used for dam flood breaches, the present invention provides a rapid sealing device for dam breaches.

[0004] A rapid plugging device for dam breaches comprises a plugging cage, an iron chain 5, a tensioner and relaxer 4 and a fixed pile 3; The blocking cage includes a cylindrical steel frame cage 7 and a cylindrical wire mesh cage 8, the wire mesh cage 8 is fixedly arranged in the steel frame cage 7; a balloon 9 is arranged in the wire mesh cage 8, and a highly absorbent resin material 10 is arranged in the balloon 9; One end of the iron chain 5 is fixedly connected to one axial end of the steel frame cage 7, and the other end of the iron chain 5 is fixed to the fixed pile 3; The tensioner / relaxer 4 is fixed on the iron chain 5 .

[0005] When in use, the balloon 9 is inflated to fill the wire mesh cage 8, and the fixed pile 3 is fixedly placed on the dam more than 20 meters away from the dam breach; the blocking cage is dropped into the river water from the upstream of the river, and floats to the dam breach position with the direction of the water flow under the buoyancy of the balloon 9; the balloon 9 is broken, the blocking cage sinks and touches the bottom of the water, and the super absorbent resin material 10 absorbs water and expands to fill the inside of the wire mesh cage 8, so that one end of the blocking cage is at the bottom of the water, and the other end of the blocking cage forms a continuous retaining wall structure through the iron chain 5, thereby achieving the blocking of the dam breach.

[0006] The further technical solution is as follows: When the breach length is less than 3 meters and the height is less than 1 meter, the axial length of the blocking cage is 15 to 50 cm greater than the width of the breach, and the diameter of the blocking cage is 10 to 15 cm less than the width of the breach; When the breach length is less than 3 meters and the height is greater than 1 meter, the axial length of the blocking cage is 15 to 50 cm greater than the width of the breach of the dam, and the diameter of the blocking cage is 1 meter; When the breach length is greater than 3 meters, regardless of the height, the axial length of the blocking cage is 3 meters and the diameter of the blocking cage is 1 meter.

[0007] When the breach is less than 3 meters long and less than 1 meter high, only one plugging cage is needed to complete the plugging. When the breach length is greater than 3 meters or the height is greater than 1 meter, one or more blocking cages are placed in accordance with the breach area to complete the blocking. When multiple blocking cages are placed, they are placed in sequence until multiple blocking cages are stacked to complete the blocking.

[0008] The steel bar cage 7 comprises more than four steel bar rings connected axially by more than three reinforcing bars, and the steel bar rings at both ends of the axial direction are installed with cross reinforcing steel bars.

[0009] The highly water-absorbent resin material 10 is one of polyacrylate material, starch acrylate polymer material, starch-acrylonitrile graft copolymer material, and cross-linked acrylamide material.

[0010] The tensioner and relaxer 4 is a double-hook wire tightener with a pulling force greater than 1 ton.

[0011] The balloon 9 is punctured by a sharp object or shot with an air gun.

[0012] The beneficial technical effects of the present invention are embodied in the following aspects: (1) The use of the device of the present invention to seal the breach of the dam ensures the safety of the operator to the greatest extent. The operator can stand upstream away from the flood to fix and lower the device, and puncture the balloon with an air gun or a long sharp object at a distance from the breach to make the device work; the traditional method of driving a truck to sink into the breach and sealing with sandbags requires the operator to stand very close to the breach to operate, with a great risk of falling into the breach, which greatly threatens the life safety of the operator.

[0013] (2) The materials used in the present invention are cheap and readily available, and the operation does not require a large amount of manpower.

[0014] According to preliminary estimates (calculated based on a resin plugging cage with a length of 3m and a diameter of 80cm), the price per square meter of plugging is about 62.5 yuan. If a truck is used for plugging, ignoring the price of soil and rocks, taking a truck with a price of 75,000 yuan, a length of 13 meters, and a height of 2.5 meters as an example, the price per square meter of plugging is as high as 2,300 yuan. Compared with large trucks loaded with heavy objects such as soil and rocks for plugging, the present invention has a great price advantage.

[0015] (3) The cost of using the device of the present invention to seal the breach of the dam is more controllable than other methods. The traditional method, whether it is to use large trucks loaded with heavy objects such as earth and rocks for sealing or to use sand, gravel, and sandbags for sealing, will face the risk of the sealing objects being washed away. For floods with uncertain flow rates, the consequences of this risk are uncertain. However, there is no need to worry about being washed away by floods in the present invention, as the iron chains and fixed piles are sufficient to withstand a certain impact force. Compared with traditional methods, the present invention is more controllable and predictable, greatly reducing the uncertainty of the filling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the top view structure of the practical application of the invention.

[0017] Figure 2 It is a structural schematic diagram of the blocking cage.

[0018] Figure 3 Schematic diagram of the structure of the steel frame cage.

[0019] Figure 4 This is a schematic diagram of the structure of a wire mesh cage.

[0020] Figure 5 A schematic diagram of the balloon structure.

[0021] Figure 6 Schematic diagram of the structure of super absorbent resin material.

[0022] The serial numbers in the above picture are: dam 1, dam breach 2, fixed piles 3, tensioner relaxer 4, iron chain 5, steel skeleton cage 7, wire mesh cage 8, balloon 9, and super absorbent resin material 10. DETAILED DESCRIPTION

[0023] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings.

[0024] See also Figure 1 A rapid plugging device for dam breaches includes a resin plugging cage, an iron chain 5, a tensioner and relaxer 4, and a fixed pile 3.

[0025] See also Figure 2 The blocking cage includes a cylindrical steel frame cage 7 and a cylindrical wire mesh cage 8 , and the wire mesh cage 8 is coaxially fitted and fixedly installed in the steel frame cage 7 .

[0026] See also Figure 3 The steel frame cage 7 includes four steel rings axially connected by four bars, and cross reinforcing steel bars are installed in the steel rings at both ends of the axial direction.

[0027] See also Figure 4 The shape of the wire mesh cage 8 is the same as that of the steel frame cage 7.

[0028] The wire mesh cage 8 is provided with a balloon 9, and the balloon 9 is provided with a super absorbent resin material 10. The super absorbent resin material 10 is a polyacrylic acid salt material, see Figure 6 .

[0029] The axial length of the plugging cage is 15 to 50 cm greater than the width of the dam breach, and the diameter of the resin plugging cage is 10 to 15 cm smaller than the width of the dam breach.

[0030] See also Figure 1 One end of the iron chain 5 is fixedly connected to one axial end of the steel frame cage 7, and the other end of the iron chain 5 is fixed to the fixed pile 3. The tensioner 4 is fixedly installed on the iron chain 5, and the tensioner 4 is a double hook tensioner with a pulling force greater than 1 ton.

[0031] During use, the balloon 9 is first inflated to fill the entire wire mesh cage 8. The iron chain 5 is fixedly connected to one axial end of the blocking cage, and the other end of the iron chain 5 is fixedly connected to a fixed pile 3 on the dam more than 20 meters away from the dam breach and located upstream.

[0032] The blocking cage is dropped into the river water from the upstream of the river, and floats along the water flow direction to the breach of the dam under the buoyancy of the balloon 9; the balloon 9 is pierced with a sharp object, and the blocking cage sinks to the bottom of the water, and the super absorbent resin material 10 absorbs water and expands to fill the wire mesh cage 8, so that one end of the blocking cage is at the bottom of the water, and the other end of the blocking cage forms a continuous retaining wall structure through the iron chain 5, thereby sealing the breach of the dam.

[0033] It will be easily understood by those skilled in the art that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rapid plugging device for dam breach, characterized by: It comprises a blocking cage, an iron chain (5), a tensioner (4) and a fixing pile (3); The blocking cage comprises a cylindrical steel frame cage (7) and a cylindrical wire mesh cage (8), wherein the wire mesh cage (8) is fixedly arranged in the steel frame cage (7); a balloon (9) is arranged in the wire mesh cage (8), and a highly absorbent resin material (10) is arranged in the balloon (9); One end of the iron chain (5) is fixedly connected to one axial end of the steel frame cage (7), and the other end of the iron chain (5) is fixed to the fixed pile (3); The tensioner and relaxer (4) is fixedly mounted on the iron chain (5).

2. A rapid plugging device for dam breach according to claim 1, characterized in that: When the breach length is less than 3 meters and the height is less than 1 meter, the axial length of the blocking cage is 15 to 50 cm greater than the width of the breach, and the diameter of the blocking cage is 10 to 15 cm less than the width of the breach; When the breach length is less than 3 meters and the height is greater than 1 meter, the axial length of the blocking cage is 15 to 50 cm greater than the width of the breach of the dam, and the diameter of the blocking cage is 1 meter; When the breach length is greater than 3 meters, regardless of the height, the axial length of the blocking cage is 3 meters and the diameter of the blocking cage is 1 meter; When the breach is less than 3 meters long and less than 1 meter high, only one plugging cage is needed to complete the plugging. When the breach length is greater than 3 meters or the height is greater than 1 meter, one or more blocking cages are placed in accordance with the breach area to complete the blocking. When multiple blocking cages are placed, they are placed in sequence until multiple blocking cages are stacked to complete the blocking.

3. A rapid plugging device for dam breach according to claim 1, characterized in that: The steel bar skeleton cage (7) comprises more than four steel bar rings axially connected together by more than three reinforcing bars, and the steel bar rings at both ends of the axial direction are provided with cross reinforcing steel bars.

4. A rapid plugging device for dam breach according to claim 1, characterized in that: The highly water-absorbent resin material (10) is one of a polyacrylate material, a starch acrylate polymer material, a starch-acrylonitrile graft copolymer material, and a cross-linked acrylamide material.

5. A rapid plugging device for dam breach according to claim 1, characterized in that: The tensioner (4) is a double-hook tensioner with a tension force greater than 1 ton.

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