Flood-fighting river levee piping treatment method and piping treatment device
Through the combined structure of the outer cylinder and the inner cylinder, a surrounding well is formed and multiple filter layers are set up, which solves the problem of poor filtration effect in the existing technology, realizes effective control of pipe bursts, and prevents dam collapse.
Patent Information
- Application Number
- CN202510987681.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2025-09-12
AI Technical Summary
The existing technology for pipe burst control has poor filtration effect and is difficult to effectively block the bursting point, which may lead to the collapse of the dam.
The outer cylinder forms a surrounding well, and the inner cylinder is equipped with a diversion buffer plate and multiple filter layers, including coarse sand, gravel sand and pebble filter layers. The diversion buffer plate slows down the water flow rate and filters step by step, and the clean water is discharged from the outer cylinder.
Effectively reduce the impact of water flow, ensure the smooth laying of coarse sand, improve the filtration effect, prevent the gushing mouth from being crushed, ensure the smooth passage of water, and avoid dam collapse.
Smart Images
Figure CN120625550A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of river embankment flood control, and in particular to a method and device for controlling pipe bursts in a flood-resistant river embankment. Background Art
[0002] Piping is a common hazard of earthen dams and the cause of many breaches. Levees are constructed on a binary structure with an upper layer of fine sand or clay and a lower layer of coarser gravel. As river or lake water levels continue to rise, the pressure differential between the upper and lower levels of the levee increases. The hydraulic pressure causes the fine-grained sand and soil within the levee or foundation to be displaced and carried away by the current, forming a tubular channel. From the levee foot or even further away, from vulnerable areas such as the levee, ponds, rice paddies, artificial wells, humus layers, and in front of and behind houses, muddy water laden with mud and sand continuously surges out of the ground. The water swells up and down, forming a distinct sand ring. This phenomenon is known as piping. Piping is extremely dangerous. Due to the entrainment of sand and soil, the piping channel can become increasingly larger. If not addressed promptly, piping can develop rapidly. When large amounts of sand and soil are removed from the levee or foundation, a cavity is formed, causing the levee to collapse or even fail.
[0003] The most common approach to address piping is to fill the upstream side with a large amount of impermeable clay and perform reverse filtration at the downstream side, employing a "blocking from above and draining from below" approach. At the piping site, bags of impermeable clay are placed around the outflow to form a well. Using the principle of a communicating vessel, the water level in the well is raised, minimizing the difference in upstream and downstream water levels. This approach is known as a "water-retention basin." Simultaneously, filter material is placed at the outflow site within the well. This material intercepts sand and gravel in the water, allowing the seeping water to drain away. The filter material is layered upwards, gradually increasing in particle size from fine to coarse sand, gravel, and pebbles. This reverse filtration filters the sediment in the seeping water back into the sand and gravel layer, allowing the clear water to flow freely. However, for piping with larger outflows, the initial placement of fine-grained coarse sand into the well makes it difficult to seal the outflow, and the water is often toppled to the side by the outflowing water, resulting in poor filtration effectiveness. If bags of coarse sand are used, the bags cannot be stacked regularly, resulting in larger spaces between the bags and poor filtration effect. In addition, the gaps between the bags are very small in order to be strong. Piles of bags can easily block the gushing outlets, causing the underground pressure to increase and more gushing outlets to appear or breach. Summary of the Invention
[0004] The purpose of the present invention is to provide a method for controlling pipe bursts in flood-control river embankments to solve the technical problem of poor filtration effect in the prior art; at the same time, the purpose of the present invention is also to provide a pipe burst control device for realizing the above-mentioned method for controlling pipe bursts in flood-control river embankments.
[0005] To achieve the above-mentioned purpose, a method for controlling pipe bursts in a flood-control embankment of the present invention adopts the following technical solution: A method for controlling pipe bursts in a flood-control embankment of the present invention comprises the following steps:
[0006] 1) An outer cylinder with upper and lower openings is provided outside the fixed cover of the gushing mouth, so that the water gushing out of the gushing mouth enters the outer cylinder, and the outer cylinder forms a surrounding well;
[0007] 2) An inner cylinder with openings at both ends for filling with coarse sand is placed in the inner cavity of the outer cylinder. The lower end of the inner cylinder is buckled onto the outside of the gushing mouth, and a diversion buffer plate is provided at the lower part of the inner cylinder. The diversion buffer plate is a porous plate that slows down the flow of water by diverting the flow.
[0008] 3) Fill the inner cylinder with coarse sand to form a coarse sand filter layer;
[0009] 4) Gravel sand and pebbles are filled in sequence above the coarse sand filter layer in the outer cylinder. The gravel sand and pebbles form a gravel sand filter layer and a pebble filter layer respectively. The water gushing out of the gushing mouth passes through the diversion buffer plate, the coarse sand filter layer, the gravel sand filter layer and the pebble filter layer in sequence. The sand and gravel are intercepted, and the clean water in the upper layer of the outer cylinder overflows from the upper end of the outer cylinder or is discharged from the clean water outflow pipe arranged at the upper part of the outer cylinder.
[0010] In step 2), the outer cylinder is a modular structure, including at least two cylinder plates that can be assembled together.
[0011] In step 2), each cylinder plate is provided with a through hole extending vertically therethrough, and a fixing pin rod capable of being driven downward into the soil is installed in the through hole.
[0012] In step 3), the inner cylinder and the diverter buffer plate are detachably connected, and a lifting rod is provided on the inner cylinder or the diverter buffer plate.
[0013] A piping control device for implementing the above-mentioned flood control method for riverbank piping of the present invention adopts the following technical solution: a piping control device comprising:
[0014] The outer cylinder has openings at both the upper and lower ends. When in use, the lower end cover is buckled on the outside of the spout. A clean water outflow pipe is provided on the upper part of the outer cylinder.
[0015] The inner cylinder is placed inside the outer cylinder when in use. The lower end of the inner cylinder is open and the cover is buckled on the outside of the gushing mouth. The upper end of the inner cylinder is open for filling with coarse sand. The lower part of the inner cylinder is provided with a diversion buffer plate. The diversion buffer plate is a porous plate that slows down the flow rate of the water body by diversion. The size of the inner cylinder along the axial direction is smaller than the size of the outer cylinder along the axial direction, so that a filling cavity for filling with gravel, sand and pebbles is formed inside the outer cylinder above the inner cylinder.
[0016] A fixing cylinder is coaxially arranged at the lower end of the inner cylinder, and the fixing cylinder and the inner cylinder are fixedly connected by a plurality of connecting rods arranged at intervals along the circumference. The plurality of connecting rods form a diversion support structure supporting the diversion buffer plate. The diversion buffer plate has a center hole, and a lifting rod is installed in the fixing cylinder and the center hole. The lower part of the lifting rod has a threaded section installed in the fixing cylinder and the center hole and is equipped with at least two nuts to fix and lock the diversion buffer plate on the diversion support structure. The upper end of the lifting rod has a lifting ring.
[0017] The outer cylinder is a combined structure, and includes at least two cylinder plates that can be assembled together.
[0018] A groove is provided on one side wall surface of each cylinder plate, and a protrusion for inserting into the groove is provided on the other side wall surface.
[0019] Each of the cylinder plates is provided with a through hole which passes through the through hole, and a fixing pin rod which can be nailed downward into the soil is installed in the through hole.
[0020] A locking clamp is provided outside the outer cylinder.
[0021] The beneficial effects of the present invention are as follows: an outer cylinder is first fixed outside the gushing mouth, forming a surrounding well with the outer cylinder. An inner cylinder is then placed inside the outer cylinder, and the water surging out of the gushing mouth is diverted by a diversion buffer plate at the lower end of the inner cylinder to slow down the flow rate and impact force. Coarse sand is placed in the inner cylinder and can be well retained and laid in the inner cylinder to filter the surging water. Gravel, sand and pebbles are then filled in together to form a filter layer. Compared with the existing technology, the coarse sand layer can be laid stably above the gushing mouth, effectively filtering the water surging at the gushing mouth, and will not crush the gushing mouth, ensuring that the water surging out of the gushing mouth passes smoothly after being filtered. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural schematic diagram of a piping control device of the present invention;
[0023] Figure 2 yes Figure 1 Schematic diagram of the explosion structure of the piping control device;
[0024] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;
[0025] Figure 4 It is a schematic diagram of the structure of the filter layer inside the outer cylinder;
[0026] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle. DETAILED DESCRIPTION
[0027] To facilitate understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.
[0028] It should be noted that, unless otherwise defined, the technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0029] A flood control embankment piping control method of the present invention comprises the following steps:
[0030] 1) An outer cylinder with upper and lower openings is fixed outside the gushing mouth so that water gushing out of the gushing mouth enters the outer cylinder, and the outer cylinder forms a surrounding well.
[0031] In this step, the lower end of the outer cylinder is directly covered and buckled on the outside of the gushing mouth, and its lower end contacts the soil by gravity to form a surrounding well. The inner diameter of the outer cylinder is 1-5m, and the thickness is 5-10cm. For small pipe bursts, an outer cylinder of 1-3m can be selected, and an outer cylinder of 3-5m can be selected in a concentrated gushing area. In order to facilitate production, transportation, and assembly and disassembly, the outer cylinder is a modular structure, including at least two cylinder plates that can be assembled together, which can be easily assembled and disassembled for recycling. Each cylinder plate is provided with a through-hole that runs through the top and bottom, and a fixing pin rod that can be nailed down into the soil is installed in the through-hole, and is hammered into the underground soil through the fixing pin rod to achieve fixation of the outer cylinder.
[0032] 2) An inner cylinder with openings at both the upper and lower ends for filling with coarse sand is placed in the inner cavity of the outer cylinder. The lower end of the inner cylinder is buckled on the outside of the gushing mouth, and a diverter buffer plate is provided at the lower part of the inner cylinder. The diverter buffer plate is a porous plate to slow down the flow rate of the water. The water surging out of the gushing mouth is diverted after passing through the diverter buffer plate, and its flow rate and impact force are dispersed, reducing the impact of the water flow on the coarse sand subsequently added, and facilitating the smooth laying of the subsequent filling of coarse sand. The inner cylinder and the diverter buffer plate are detachably connected, and a lifting rod is provided on the inner cylinder or on the diverter buffer plate. It is not only convenient for production, transportation and disassembly, but also convenient for the assembled inner cylinder-diverter buffer plate-lifting rod to be placed into the outer cylinder as a whole through the lifting rod.
[0033] 3) Fill the inner cylinder with coarse sand to form a coarse sand filter layer. The particle size of the coarse sand is 1-2mm, which is used to initially filter particles in the water.
[0034] 4) Gravel and pebbles are sequentially added above the coarse sand filter layer in the outer cylinder. The gravel and pebbles form the gravel and sand filter layers, respectively. Water gushing out of the outlet passes through the coarse sand filter layer, the gravel and sand filter layer, and the pebble filter layer, trapping the sand and gravel. The clean water in the upper layer overflows from the upper end of the outer cylinder or is discharged through the clean water outflow pipe located there. The gravel and sand particle size is selected to be 5-20mm to enhance water permeability, and the pebble particle size is selected to be 40-80mm to stabilize the coarse sand and gravel filter layers below. The coarse sand filter layer, gravel and sand filter layer, and pebble filter layer, arranged from bottom to top, together form the anti-filtration layer.
[0035] A pipe burst control device capable of implementing the above-mentioned flood control method for riverbank pipe bursts, such as Figure 1-5 As shown, it includes an outer cylinder 2 and an inner cylinder 3. The specific structure of the outer cylinder and the inner cylinder is introduced in detail below: the upper and lower ends of the outer cylinder 2 are open, and the lower end cover is buckled on the outside of the outlet when in use, and a clean water outflow pipe 6 is provided on the upper part of the outer cylinder 2. The outer cylinder is made of metal, cement or concrete. The outer cylinder 2 is a modular structure, and the outer cylinder includes at least two cylinder plates 10 that can be assembled together. In this embodiment, the number of cylinder plates 10 is 3. A groove 14 is provided on one side wall of each cylinder plate 10, and a protrusion 13 for inserting into the groove is provided on the other side wall for easy assembly. Each cylinder plate is provided with a through hole that passes through from top to bottom, and a fixing pin rod 11 that can be nailed down into the soil is installed in the through hole. The outer cylinder is fixed by knocking down the fixing pin rod. In order to further ensure the stability of the outer cylinder, a locking clamp is provided on the outside of the outer cylinder.
[0036] The inner cylinder 3 is placed inside the outer cylinder 2 when in use. The lower end of the inner cylinder is open and the cover is buckled on the outside of the gushing mouth. The upper end of the inner cylinder is open for filling with coarse sand. The outer diameter of the inner cylinder and the inner diameter of the outer cylinder are matched and there is a gap between them, and the gap is small, so that the inner cylinder can be smoothly placed in the outer cylinder. A diverter buffer plate 4 is provided at the lower part of the inner cylinder. In this embodiment, the diverter buffer plate 4 is a porous plate to slow down the flow rate of the water body. The inner cylinder is made of metal and relies on its gravity to sit above the gushing mouth. The lower end of the inner cylinder is in contact with the soil around the gushing mouth, and the water gushing out from the gushing mouth will directly enter the inner cylinder. The size of the inner cylinder along the axial direction is smaller than the size of the outer cylinder along the axial direction, so that a filling cavity for filling with gravel, sand and pebbles is formed inside the outer cylinder above the inner cylinder.
[0037] A fixed cylinder 7 is coaxially arranged at the lower end of the inner cylinder, and the fixed cylinder 7 is fixedly connected to the inner cylinder 3 by a plurality of connecting rods 8 arranged at intervals along the circumference. The plurality of connecting rods form a diversion support structure that supports the diversion buffer plate. The diversion buffer plate 4 has a center hole, and a lifting rod 5 is installed in the fixed cylinder and the center hole. The lower part of the lifting rod has a threaded section that is installed in the fixed cylinder and the center hole and is equipped with at least two nuts 9 to fix and lock the diversion buffer plate on the diversion support structure. At least one nut is located at the lower end of the diversion support structure for cooperating with the upper and lower limit of the fixed cylinder, and the other nut is located above the diversion buffer plate for cooperating with the limit of the diversion buffer plate. The upper end of the lifting rod has a lifting ring 12. The diversion support structure can play a role of preliminary diversion, and can also fix the lifting rod and the diversion buffer plate, so that the inner cylinder, the diversion buffer plate and the lifting rod become a whole, which not only increases the weight of the whole and ensures that it is not blown upward by the water gushing out of the gushing mouth, but also can be hoisted as a whole, which is convenient for the operation of mechanical arms such as cranes.
[0038] During use, the outer cylinder is assembled so that the gushing mouth is located inside the outer cylinder. The assembled hoisting rod, diversion buffer plate and inner cylinder are then placed inside the outer cylinder. Under the action of gravity, the lower end cover of the inner cylinder is buckled on the outside of the gushing mouth, and the water gushing out from the gushing mouth directly enters the inner cylinder. Then coarse sand is poured into the inner cylinder, which can be filled with or higher than the inner cylinder to form a coarse sand filter layer 15. Then gravel sand and pebbles are poured in again to form a gravel sand filter layer 16 and a pebble filter layer 17 in sequence. The water gushing out from the gushing mouth will pass through the diversion support structure, diversion buffer plate, coarse sand filter layer, gravel sand filter layer and pebble filter layer in sequence. The particulate matter is intercepted, which prevents the sand and gravel in the river bank from continuing to rush out. The clean water after passing through the filter layer overflows from the upper end of the outer cylinder or is discharged from the clean water discharge pipe provided at the top. When a pipe burst is just discovered, in the process of transporting the above-mentioned device to the burst mouth, you can first take materials locally at the pipe burst location, fill bags with soil, and build a preliminary enclosure 1, such as Figure 1 As shown, the water level in the surrounding well is increased to reduce the pressure difference, and the above operation is performed after the treatment device is transported to the site.
[0039] In the foregoing description of this specification, unless otherwise expressly specified or limited, terms such as "fixed," "mounted," "connected," or "connected" should be understood broadly. For example, the term "connected" can refer to a fixed connection, a removable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediary; or the internal connection between two components or the interaction between two components. Therefore, unless otherwise expressly defined in this specification, those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0040] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.
[0041] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinal numbers are used for descriptive purposes only and should not be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, "plurality" means at least two, such as two, three or more, etc., unless otherwise clearly specified.
[0042] In other embodiments of the present invention, the number of cylinder plates can be selected according to actual needs, for example, two split-type plates, or four or more; on the premise that the outer cylinder can be stably placed at the outlet, only the fixing pin rod or only the locking clamp can be retained; the number of nuts on the lifting rod can also be selected according to needs; the lifting rod can also be set on the inner cylinder.
Claims
1. A flood control embankment piping control method, characterized in that: The following steps are involved: 1) An outer cylinder with upper and lower openings is provided outside the fixed cover of the gushing mouth, so that the water gushing out of the gushing mouth enters the outer cylinder, and the outer cylinder forms a surrounding well; 2) An inner cylinder with openings at both ends for filling with coarse sand is placed in the inner cavity of the outer cylinder. The lower end of the inner cylinder is buckled onto the outside of the gushing mouth, and a diversion buffer plate is provided at the lower part of the inner cylinder. The diversion buffer plate is a porous plate that slows down the flow of water by diverting the flow. 3) Fill the inner cylinder with coarse sand to form a coarse sand filter layer; 4) Gravel sand and pebbles are filled in sequence above the coarse sand filter layer in the outer cylinder. The gravel sand and pebbles form a gravel sand filter layer and a pebble filter layer respectively. The water gushing out of the gushing mouth passes through the diversion buffer plate, the coarse sand filter layer, the gravel sand filter layer and the pebble filter layer in sequence. The sand and gravel are intercepted, and the clean water in the upper layer of the outer cylinder overflows from the upper end of the outer cylinder or is discharged from the clean water outflow pipe arranged at the upper part of the outer cylinder.
2. The flood control embankment piping control method according to claim 1, characterized in that: In step 2), the outer cylinder is a modular structure, including at least two cylinder plates that can be assembled together.
3. The flood control embankment piping control method according to claim 2, characterized in that: In step 2), each cylinder plate is provided with a through hole extending vertically therethrough, and a fixing pin rod capable of being driven downward into the soil is installed in the through hole.
4. The flood control embankment piping control method according to claim 1, characterized in that: In step 3), the inner cylinder and the diverter buffer plate are detachably connected, and a lifting rod is provided on the inner cylinder or the diverter buffer plate.
5. A piping control device capable of implementing the flood control method for riverbank piping according to claim 1, characterized in that: include The outer cylinder has openings at both the upper and lower ends. When in use, the lower end cover is buckled on the outside of the spout. A clean water outflow pipe is provided on the upper part of the outer cylinder. The inner cylinder is placed inside the outer cylinder when in use. The lower end of the inner cylinder is open and the cover is buckled on the outside of the gushing mouth. The upper end of the inner cylinder is open for filling with coarse sand. The lower part of the inner cylinder is provided with a diversion buffer plate. The diversion buffer plate is a porous plate that slows down the flow rate of the water body by diversion. The size of the inner cylinder along the axial direction is smaller than the size of the outer cylinder along the axial direction, so that a filling cavity for filling with gravel, sand and pebbles is formed inside the outer cylinder above the inner cylinder.
6. The piping control device according to claim 5, characterized in that: A fixing cylinder is coaxially arranged at the lower end of the inner cylinder, and the fixing cylinder and the inner cylinder are fixedly connected by a plurality of connecting rods arranged at intervals along the circumference. The plurality of connecting rods form a diversion support structure supporting the diversion buffer plate. The diversion buffer plate has a center hole, and a lifting rod is installed in the fixing cylinder and the center hole. The lower part of the lifting rod has a threaded section installed in the fixing cylinder and the center hole and is equipped with at least two nuts to fix and lock the diversion buffer plate on the diversion support structure. The upper end of the lifting rod has a lifting ring.
7. The piping control device according to claim 5, characterized in that: The outer cylinder is a combined structure, and includes at least two cylinder plates that can be assembled together.
8. The piping control device according to claim 7, characterized in that: A groove is provided on one side wall surface of each cylinder plate, and a protrusion for inserting into the groove is provided on the other side wall surface.
9. The piping control device according to claim 7, characterized in that: Each of the cylinder plates is provided with a through hole which passes through the through hole, and a fixing pin rod which can be nailed downward into the soil is installed in the through hole.
10. The piping control device according to claim 7, characterized in that: A locking clamp is provided outside the outer cylinder.