Automatic burst type flood discharge blocking body of flood diversion opening door and design method and manufacturing method of automatic burst type flood discharge blocking body

Abstract

The invention relates to an automatic burst type flood discharge plugging body of a flood diversion opening door, and particularly provides the automatic burst type flood discharge plugging body of the flood diversion opening door and a design method and a manufacturing method of the automatic burst type flood discharge plugging body. The problems that an existing flood diversion opening door blocking body cannot achieve automatic grading opening according to the water level, accurate discharge regulation and control and safety and economical efficiency at the same time are solved. In order to achieve the purpose, according to the automatic burst type flood discharge blocking body of the flood diversion opening door, a control water level and a hole are formed in the blocking body, the position of the hole corresponds to the height of the control water level, and an easy-to-erode body is arranged in the hole to seal the hole. The hole corresponding to the control water level is formed in the plugging body, the hole is filled with the easy-to-erode body, the plugging body is kept in the closed state in the non-flood diversion period, when the flood level reaches the preset control water level, the easy-to-erode body can be automatically flushed by the flood to form an overflowing channel, and therefore the water level of the flood is controlled to be higher than the preset control water level. Therefore, the automatic burst flood discharge effect without external power or manual intervention is achieved.

Description

Technical Field

[0001] This invention relates to an automatic breach-type flood discharge sealing body for flood diversion gates, specifically providing an automatic breach-type flood discharge sealing body for flood diversion gates, its design method, and its manufacturing method. Background Technology

[0002] From a technological perspective, flood diversion projects, as a crucial component of flood control systems, divert excess floodwaters through diversion gates into flood storage areas or discharge channels to reduce flood pressure on main rivers and dikes. The sealing structures at the diversion gates need to remain stable and closed during non-flood periods, and be able to open at predetermined water levels to achieve tiered flood discharge when floods arrive. Currently, common methods for opening these sealing structures include blasting, manual breaching, and gate control. For example, blasting relies on pre-set explosives to destroy the structure, but suffers from difficulties in precisely controlling energy and the potential for irreversible damage to the main structure; manual breaching relies on manual labor, has a delayed response, and poses significant safety hazards in flood conditions; while gate-type structures offer a degree of controllability, they typically require complex opening and closing equipment, have high construction and maintenance costs, and are prone to corrosion and failure during long-term operation.

[0003] Furthermore, existing technologies generally struggle to balance safety, timely response, structural reliability, and multi-stage discharge control capabilities. On one hand, most solutions lack a tiered flood discharge mechanism that is automatically triggered by water levels, making it difficult to achieve precise control based on changes in flood levels. On the other hand, existing structures also have shortcomings in terms of construction complexity, operation and maintenance costs, and post-disaster recovery, making it difficult to meet the economic and sustainability requirements of modern flood diversion projects.

[0004] Therefore, there is an urgent need in this field for an automatic breach-type flood discharge sealing body for flood diversion gates, as well as its design and manufacturing methods, to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the existing flood diversion gate sealing body cannot simultaneously achieve automatic graded opening according to water level, precise control of discharge volume, and balance safety and economy.

[0006] In a first aspect, the present invention provides an automatic breaching flood discharge sealing body for a flood diversion gate, wherein the sealing body is provided with a water level control and a hole, the position of the hole is corresponding to the height of the water level control, and an easily eroded body is provided inside the hole to seal the hole. When the flood reaches the control level, the flood can damage the erosion-prone body, allowing the flood to pass through the hole.

[0007] In a specific embodiment of the above-mentioned automatic breach-type flood discharge sealing body for a flood diversion gate, multiple control water levels are arranged sequentially from low to high on the sealing body, and each control water level is provided with a hole.

[0008] In a specific embodiment of the above-mentioned automatic breach-type flood discharge sealing body for a flood diversion gate, each of the control water levels is provided with a plurality of holes to achieve a preset discharge volume at the control water level.

[0009] In a specific embodiment of the above-mentioned automatic breach-type flood discharge sealing body for a flood diversion gate, the diameter of the hole ranges from 30cm to 100cm; and / or The center-to-center distance between two adjacent holes at the same controlled water level shall not be less than twice the diameter of the hole.

[0010] In a specific embodiment of the above-mentioned automatic breach-type flood discharge sealing body for a flood diversion gate, the axial direction of the hole is consistent with the direction in which the floodwater passes through the hole.

[0011] In a second aspect, the present invention provides a design method for an automatic breach-type flood discharge sealing body for a flood diversion gate, wherein the sealing body is an automatic breach-type flood discharge sealing body for a flood diversion gate as described above, and the design method includes the following steps: S101. Based on the flood control standards of the flood diversion project, the capacity of the flood storage and detention area, and the bearing capacity of the embankment, determine the number, height, and corresponding discharge of the control water level. S102, determine the number and diameter of the holes according to the hydraulic model to ensure that when all the holes corresponding to the same control water level are opened, the flow capacity of the sealing body meets the discharge requirements of the corresponding level.

[0012] In a third aspect, the present invention provides a method for manufacturing an automatic breach-type flood discharge sealing body for a flood diversion gate, wherein the sealing body is the aforementioned automatic breach-type flood discharge sealing body for a flood diversion gate, and the manufacturing method includes the following steps: S201, the sealing body is formed by casting anti-erosion material at the flood diversion gate, and the sealing body, together with the side wall and the central partition wall, forms a closed water-blocking structure; S202, the hole is made at a predetermined position on the sealing body; S203, the cavity is filled with an easily eroded material to form the easily eroded body, thereby sealing the cavity.

[0013] By employing the above-mentioned technical solution, this invention creates holes on the sealing body corresponding to the controlled water level and fills the holes with easily eroded material, allowing the sealing body to remain closed during non-flood diversion periods. When the flood level reaches the preset control level, the floodwaters can automatically breach the easily eroded material to form a flow channel, thereby achieving an automatic breaching flood discharge effect without external power or human intervention. This not only improves the timeliness and safety of flood diversion response but also enables graded flood discharge control based on different water levels, reducing the risk of damage to the main structure. Furthermore, the structure is simple, with low construction and maintenance costs, and the easily eroded material can be refilled after the flood diversion to restore the sealing function, thus exhibiting good recoverability and reusability.

[0014] Furthermore, this invention sets multiple control water levels along the height direction on the sealing body and sets corresponding holes at each control water level, so that the sealing body can sequentially trigger the opening of holes at different heights as the flood water level rises, thereby realizing the graded release and gradual improvement of flood discharge capacity; this is conducive to achieving precise control of different flood volumes, avoiding the impact flood discharge problem caused by a single opening method, and improving the safety, stability and adaptability of the flood diversion process.

[0015] Furthermore, by setting the axial direction of the hole to be consistent with the flow direction of floodwater through the hole, the present invention enables water to flow smoothly along the axial direction of the hole, thereby effectively reducing the lateral scouring and turbulent impact of water flow on the sealing body, reducing the risk of local stress concentration and structural damage; thus, it is beneficial to improve the overall stability and durability of the sealing body, and improve the hydraulic efficiency and safety of the flood discharge process.

[0016] Furthermore, this invention comprehensively determines the control water level and corresponding discharge based on the flood control standards of the flood diversion project, the capacity of the flood storage and detention area, and the bearing capacity of the embankment. It also optimizes the design of the number and diameter of the holes by combining a hydraulic model, so that the holes corresponding to each control water level can meet the flow capacity requirements of the corresponding level after opening. This improves the scientificity and accuracy of the design, and is conducive to improving the reliability of flood diversion scheduling and the operation effect of the project.

[0017] Furthermore, this invention uses erosion-resistant materials to integrally cast a sealing body at the flood diversion gate, forming a closed water-blocking structure with the side walls and central partition walls. At the same time, holes are opened at preset positions and filled with easily eroded materials to form easily eroded bodies, simplifying the manufacturing process and making construction highly feasible. This ensures the water-blocking stability during non-flood diversion periods and facilitates the restoration of the sealing function after flood diversion, thus taking into account structural reliability, economy, and reusability. Attached Figure Description

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which: Figure 1This is a schematic diagram of the external structure of an automatic breach-type flood discharge sealing body for a flood diversion gate provided by the present invention; Figure 2 This is a schematic diagram of the internal structure of an automatic breach-type flood discharge sealing body for a flood diversion gate provided by the present invention. The left side of the figure is the side of the sealing body closer to the flood, and the right side is the side of the sealing body away from the flood.

[0019] List of reference numerals in the attached diagram: 1. Sealing body; 2. Easily eroded body; 3. Side wall; 4. Central partition wall. Detailed Implementation

[0020] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," "right," "inner," and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Flood diversion gates are used to divert excess floodwater into flood storage areas or flood discharge channels to prevent disasters caused by dike breaches. The sealing structure is the main body of the flood diversion gate; it remains closed during non-flood diversion periods and opens according to the flood volume during flood diversion periods.

[0024] To address the limitations of existing flood diversion gate sealing systems in simultaneously achieving automatic, graded opening based on water level, precise discharge control, and balancing safety and economy, this paper refers to... Figure 1 and Figure 2This embodiment discloses an automatic breach-type floodgate sealing body 1 for a flood diversion gate. The sealing body 1 is made of erosion-resistant material, such as C15 to C33 concrete, masonry, etc. The sealing body 1 includes a water level control system with holes at the control level. One end of the hole is located on the side of the sealing body 1 facing the flood, and the other end is located on the side of the sealing body 1 away from the flood. Floodwater can flow through the holes from upstream to downstream of the sealing body 1. The holes are filled with an easily eroded material 2 to seal them. The easily eroded material 2 is made of easily eroded material, such as fine sand. After settling and consolidation, the easily eroded material is porous and foamed, with a compressive strength not exceeding 1 MPa. When the floodwater reaches the height of the holes, the floodwater can disintegrate the easily eroded material, allowing the floodwater to flow through the holes to downstream of the sealing body 1. Furthermore, the fine sand will not cause siltation downstream.

[0025] Furthermore, multiple control water levels are set sequentially from low to high on the sealing body 1. Each control water level is equipped with a hole.

[0026] Furthermore, each control water level is equipped with multiple orifices to ensure that the preset discharge capacity is achieved at the control water level. The orifices within the same flood discharge zone have the same diameter.

[0027] Furthermore, the diameter of the holes ranges from 30cm to 100cm. The center-to-center distance between two adjacent holes at the same control water level is not less than twice the hole diameter.

[0028] Furthermore, the axial direction of the hole is aligned with the direction in which the floodwater passes through the hole, in order to reduce the lateral scouring of the sealing body 1 by the floodwater. Specifically, the center of the hole near the floodwater is higher than the center of the hole away from the floodwater.

[0029] This embodiment also discloses a design method for an automatic breach-type flood discharge sealing body 1 at a flood diversion gate, which includes the following steps: S101. Based on the flood control standards of the flood diversion project, the capacity of the flood storage and detention area, and the bearing capacity of the embankment, determine the number, height, and corresponding discharge of the control water level.

[0030] S102, determine the number and diameter of holes according to the hydraulic model to ensure that when all holes corresponding to the same control water level are opened, the flow capacity of the plug body 1 meets the discharge requirements of the corresponding level.

[0031] The manufacturing method of the sealing body 1 includes the following steps: S201, Construct sealing body 1. Specifically, sealing body 1 is cast with erosion-resistant material at the flood diversion gate. Sealing body 1, together with side wall 3 and central partition wall 4, forms a closed water-retaining structure to ensure water-retaining stability during non-flood diversion periods.

[0032] S202, holes are made at predetermined positions on the sealing body 1. Specifically, the shape, position, number, and size of the holes are determined according to the design method of the sealing body 1 described above.

[0033] S203, fill the cavity with an easily eroded material, allowing it to settle and solidify to form an easily eroded body 2, thereby sealing the cavity.

[0034] The working principle of the sealing body 1 is as follows: During the non-flood diversion period, the easily eroded material 2 seals the holes on the sealing body 1, thereby closing the flood diversion gate. When the flood level reaches the lowest control water level of the sealing body 1, the easily eroded material 2 in the hole corresponding to that control water level is destroyed and disintegrated by the flood, allowing the hole to form a flow channel. Floodwater can pass through the hole to achieve the effect of flood discharge. When the flood level reaches a higher control water level, the easily eroded material 2 in the corresponding hole is destroyed and disintegrated by the flood, increasing the flood discharge capacity. After the flood diversion period, the hole can be refilled with easily eroded material to form the easily eroded material 2, thus sealing the hole.

[0035] The specific structure of the sealing body 1 will be described below through an embodiment.

[0036] The sealing structure 1 is made of C20 concrete, with a thickness of 1.2m, a height of 6m, and a width of 10m. This sealing structure 1 has three control water levels. Specifically, the first control water level H1 = 32m, corresponding to a discharge capacity Q1 = 500m³ / s. Two 50cm diameter holes are installed at the first control water level, with a 3m interval between adjacent holes.

[0037] The second control water level is H2 = 33.5m, corresponding to a discharge capacity of Q2 = 1000m³ / s. Three orifices with a diameter of 60cm are installed at the second control water level, with a spacing of 2.5m between adjacent orifices.

[0038] The third control water level is H3=35m, corresponding to a discharge capacity of Q3=1500m³ / s. Four orifices with a diameter of 80cm are installed at the third control water level, with a spacing of 2m between adjacent orifices.

[0039] The aforementioned holes are filled with fine sand to form an easily eroded body 2.

[0040] During non-flood diversion periods, the easily eroded body 2 seals the openings on the sealing body 1, keeping the flood diversion gate closed. When the flood level reaches 32m, the easily eroded body 2 in the opening corresponding to the first control water level is destroyed and disintegrated by the flood, opening the opening to achieve a flood discharge of 500 m³ / s. When the flood level reaches 33.5m, the easily eroded body 2 in the opening corresponding to the second control water level is destroyed and disintegrated by the flood, opening the opening to achieve a flood discharge of 1000 m³ / s. When the flood level reaches 35m, the easily eroded body 2 in the opening corresponding to the third control water level is destroyed and disintegrated by the flood, opening the opening to achieve a flood discharge of 1500 m³ / s. After the flood diversion period, the openings can be refilled with easily eroded material to form an easily eroded body 2, sealing the openings.

[0041] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. An automatic breach-type flood discharge sealing body for a flood diversion gate, characterized in that, The sealing body is provided with a water level control and holes. The position of the holes corresponds to the height of the water level control. An easily eroded material is provided inside the holes to seal them. When the flood reaches the control level, the flood can damage the erosion-prone body, allowing the flood to pass through the hole.

2. The automatic breach-type flood discharge sealing body for a flood diversion gate according to claim 1, characterized in that, The sealing body has multiple control water levels arranged sequentially from low to high, and each control water level is provided with a hole.

3. The automatic breach-type flood discharge sealing body for a flood diversion gate according to claim 1, characterized in that, Each of the control water levels is provided with a plurality of holes to enable the preset discharge rate at the control water level.

4. The automatic breach-type flood discharge sealing body for a flood diversion gate according to claim 1, characterized in that, The diameter of the hole ranges from 30cm to 100cm; and / or The center-to-center distance between two adjacent holes at the same controlled water level shall not be less than twice the diameter of the hole.

5. The automatic breach-type flood discharge sealing body for a flood diversion gate according to claim 1, characterized in that, The axial direction of the hole is consistent with the direction in which the floodwater passes through the hole.

6. A design method for an automatic breach-type flood discharge sealing body at a flood diversion gate, characterized in that, The sealing body is an automatic breach-type flood discharge sealing body for a flood diversion gate as described in any one of claims 1-5, and the design method includes the following steps: S101. Based on the flood control standards of the flood diversion project, the capacity of the flood storage and detention area, and the bearing capacity of the embankment, determine the number, height, and corresponding discharge of the control water level. S102, determine the number and diameter of the holes according to the hydraulic model to ensure that when all the holes corresponding to the same control water level are opened, the flow capacity of the sealing body meets the discharge requirements of the corresponding level.

7. A method for manufacturing an automatic breach-type flood discharge sealing body for a flood diversion gate, characterized in that, The sealing body is an automatic breach-type flood discharge sealing body for a flood diversion gate as described in any one of claims 1-5, and the manufacturing method includes the following steps: S201, the sealing body is formed by casting anti-erosion material at the flood diversion gate, and the sealing body, together with the side wall and the central partition wall, forms a closed water-blocking structure; S202, the hole is made at a predetermined position on the sealing body; S203, the cavity is filled with an easily eroded material to form the easily eroded body, thereby sealing the cavity.

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