HEC-RAS-based river gate dam impact resistance device and use method

Abstract

The invention discloses a river channel gate dam anti-impact device based on HEC-RAS and a using method, and belongs to the technical field of river channel water flow treatment. The device comprises a water quality collection and treatment mechanism, a water flow impact resistance mechanism and a sludge treatment mechanism, the water quality collection and treatment mechanism comprises a water inlet analysis port, an analysis terminal, a bolt, a drainage plate and an HEC-RAS integrated system; the water flow impact resistance mechanism comprises a rubber plate, a rotating disc, a boosting rod, a rubber plate fixing shaft, a rotating disc fixing point, a rubber telescopic sealing joint, a first motor and a first motor fixing shaft; and the sludge treatment mechanism comprises a sludge discharge fan blade, a second motor and a second motor fixing shaft. The device body is installed on the two sides of the upstream of the gate dam, when upstream water flow passes through the water inlet analysis port, the HEC-RAS integrated system analyzes the upstream water flow, the water flow development direction is simulated and analyzed, and a water flow direction adjusting instruction is given to achieve the impact resistance effect. Meanwhile, a pollution discharge signal instruction can be given, and river bottom sludge can be discharged through moving water flow.

Description

Technical Field

[0001] The present invention relates to the technical field of river water flow treatment, and in particular to a river dam anti-impact device based on HEC-RAS and a use method thereof. Background Art

[0002] Water conservancy project construction refers to the construction, reconstruction, expansion, and reinforcement of various water conservancy projects. The functions of river dams include flood control, sand control, water quality improvement, and irrigation. Dams can resist floods and reduce the impact of flood disasters. At the same time, they can also control water flow, prevent silt and sand, improve water quality, and protect the ecological environment. HEC-RAS is a river hydraulic calculation program developed by the Engineering Hydrology Center of the United States. HEC-RAS currently supports one-dimensional / two-dimensional hydrodynamic models, one-dimensional moving bed sediment transport models, one-dimensional water quality models, and has the ability to couple hydraulic structures (dams, dikes, weirs, culverts, bridges, etc.). HEC-RAS is open to the public free of charge and maintains a stable development schedule. It has a wide range of applications in water conservancy design, dam break assessment, floodplain assessment, bridge wading design, pump station scheduling, etc. However, the existing anti-impact devices for dams and gates used in water conservancy construction rarely have an integrated setting that combines HEC-RAS. They usually have weak anti-impact capabilities, making it difficult to reduce the impact force of large water flows on dams and dikes, and difficult to improve the protection of dams. At the same time, they cannot achieve an integrated treatment process for water quality, water flow, and silt, and need further improvement. Summary of the invention

[0003] The object of the present invention is to provide a river dam impact resistance device based on HEC-RAS and a method of use to solve the deficiencies of the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The HEC-RAS-based river dam impact resistance device comprises a water quality collection and treatment mechanism, a water flow impact resistance mechanism and a sludge treatment mechanism; the water quality collection and treatment mechanism comprises an inlet analysis port, an analysis terminal, bolts, a water discharge plate and a HEC-RAS integrated system; the inlet analysis port is located at the upper, middle and lower positions of the water inlet end of the device body, and the inlet analysis port is provided with an analysis terminal, and the analysis terminal establishes a data communication connection with the HEC-RAS integrated system; three water discharge plates are arranged on the right side of the inlet analysis port, and the water discharge plates are fixed to the device body by bolts; the water flow impact resistance mechanism comprises a rubber plate, a rotating disk, a booster rod, a rubber plate fixed shaft, a rotating disk fixed point, a rubber telescopic sealing joint, a first motor and a first motor fixed shaft; the rubber plate is connected to the first motor by a rubber plate through a rubber plate. The rubber plate fixed shaft is movably installed at the front end of the device body, and five first motors are arranged at the rear of the rubber plate inside the device body, each motor is controlled in parallel, and establishes a signal connection with the HEC-RAS integrated system; the output end of the first motor is connected to the first motor fixed shaft, and the other end of the first motor fixed shaft is connected to the rotating disk, and a rotating disk fixed point is provided on the rotating disk, and the rotating disk fixed point is connected to the booster rod, and the other end of the booster rod is connected to the rubber plate, and the end of the rubber plate is elastically connected to the device body through a rubber telescopic sealing joint; the sludge treatment mechanism includes a mud discharge fan blade, a second motor and a second motor fixed shaft, the second motor is fixed at the bottom of the device body, and the output end of the second motor is connected to the mud discharge fan blade through the second motor fixed shaft, and the mud discharge fan blade is located outside the device body.

[0006] Preferably, the water inlet analysis ports at the upper, middle and lower locations provided on the device body are used to collect water quality at different water levels.

[0007] Preferably, the drain plate is a one-way flow structure on the device body.

[0008] Preferably, the rubber plate can be transformed into an "S" shape or a "C" shape around a rubber plate fixing axis for reducing the impact force on both sides of the dam.

[0009] Preferably, the rotating disk on the fixed shaft of the first motor pushes the rubber plate toward the center of the river channel through a booster rod on a fixed point of the rotating disk, so as to change the direction of the straight-flowing water flow.

[0010] Preferably, the second motor is controlled by the HEC-RAS integrated system, and the second motor drives the mud discharge blades to rotate through the second motor fixed shaft, so as to discharge the silt deposited at the bottom of the river channel and the dam through the moving water flow.

[0011] The present invention provides another technical solution: a method for using a river dam anti-impact device based on HEC-RAS, comprising the following steps:

[0012] S1: When the water in the river flows into the water inlet analysis port, the analysis terminal in the water inlet analysis port collects data, and the data is transmitted to the HEC-RAS integrated system for data analysis, and the direction of water flow development is analyzed through simulation;

[0013] S2: The HEC-RAS integrated system issues water flow anti-impact information and sends different rotation instructions to the five first motors controlled in parallel, thereby controlling the booster rods to extend and retract to different lengths, and adjusting the rubber sheet from the original straight line to an "S" shape or a "C" shape, so that the direct water flow directly impacting the dam changes direction and concentrates in the center of the river, reducing the impact force on both sides of the dam;

[0014] S3: When the analysis terminal collects data information, the HEC-RAS integrated system performs data analysis, and a sewage discharge signal is issued, the second motor drives the mud discharge blades to rotate through the second motor fixed shaft, and the mud deposited at the bottom of the river channel and dam is discharged through the moving water flow by the rotating force of the mud discharge blades.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The HEC-RAS-based river dam anti-impact device and use method of the present invention installs the device body on both sides of the upstream of the dam, and when the upstream water flows through the water inlet analysis port, the HEC-RAS integrated system analyzes it, and by simulating and analyzing the direction of water flow development, an instruction to adjust the water flow direction is issued to achieve an anti-impact effect. At the same time, combined with the HEC-RAS integrated system, the influence of hydraulics, sediment transport, channel roughness and related boundary condition change factors can be fully considered, and an instruction is issued, and the lower mud discharge fan blades rotate to discharge the riverbed silt through the moving water flow. Based on the HEC-RAS integrated system, water quality analysis can also be performed to report water body algae, dissolved oxygen, COD. Phosphate, organic phosphorus, ammonia nitrogen, ammonium nitrite, ammonium nitrate, and organic nitrogen content, and send relevant water quality reports to managers to help managers carry out further work on water pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the anti-impact device of the present invention;

[0018] Figure 2 is a side view of the anti-impact device of the present invention;

[0019] Figure 3 A top view of the anti-impact device of the present invention;

[0020] Figure 4 This is a water flow direction diagram of the anti-impact device of the present invention;

[0021] Figure 5 This is the anti-impact diagram of the anti-impact device of the present invention in the water flow direction;

[0022] Figure 6 A water flow direction diagram for detecting the anti-shock device of the present invention;

[0023] Figure 7 This is a working diagram of the river bottom mud cleaning of the impact resistance device of the present invention;

[0024] Figure 8 This is a layout diagram of the anti-impact device of the present invention in a non-working state;

[0025] Fig. 9 This is a river direction adjustment diagram of the anti-impact device of the present invention.

[0026] In the figure: 1. water inlet analysis port; 2. analysis terminal; 3. bolt; 4. drain plate; 5. mud discharge fan blade; 6. rubber plate; 7. HEC-RAS integrated system; 8. rotating disk; 9. booster rod; 10. rubber plate fixing shaft; 11. rotating disk fixing point; 12. rubber telescopic sealing joint; 13. first motor; 14. first motor fixing shaft; 15. second motor; 16. second motor fixing shaft. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-9 The embodiment of the present invention provides a river dam anti-impact device based on HEC-RAS, including a water quality collection and processing mechanism, a water flow anti-impact mechanism and a sludge processing mechanism; wherein the water quality collection and processing mechanism includes an inlet analysis port 1, an analysis terminal 2, a bolt 3, a water discharge plate 4 and a HEC-RAS integrated system 7; specifically, three inlet analysis ports 1 are arranged at the upper, middle and lower parts of the water quality collection part, and three analysis terminals 2 are arranged in each of the inlet analysis ports 1. The three inlet analysis ports 1 at the upper, middle and lower parts can ensure water quality collection at different water levels. Three water discharge plates 4 are arranged at the upper, middle and lower parts on the right side of the three inlet analysis ports 1. When the water flow in the river passes through the inlet analysis port 1, the analysis terminal 2 in the inlet analysis port 1 collects data, and the data is transmitted to the HEC-RAS integrated system 7 for data analysis. By simulating and analyzing the direction of water flow development, water flow anti-impact information is issued, and the water after data analysis flows into the river through the unidirectional water discharge plate 4.

[0029] The HEC-RAS integrated system 7 in the embodiment of the present invention adopts the existing program module for river hydraulic calculation, which can be used to calculate the water surface line of constant gradient flow, and can simulate a single river, a tree-like or ring-like river network system. The constant flow module can solve the water surface line of three flow states: slow flow, rapid flow and mixed flow. The basic equation of this module is the energy equation, which is solved iteratively using the direct step method. Its head loss along the way is determined according to the Manning formula, and the local head loss is determined based on the change value of the flow velocity head. In areas where the flow velocity changes dramatically, such as bridges, estuaries, etc., the water flow state is complex, and the energy loss is determined according to the momentum equation. The HEC-RAS integrated system 7 in the present embodiment can also be used to simulate the one-dimensional unsteady flow process of the river network. Water-related buildings such as bridges, culverts, pump stations, weirs, and spillways can be considered. The gate opening can be dynamically controlled to simulate the actual culvert regulation process. In addition, the regulation and storage function of the water storage area and the river channel can be simulated, as well as various complex hydraulic connections between multiple water storage areas, water storage areas, and river systems. This module can be used for river network flood evolution process simulation, reservoir discharge impact analysis, flood storage and regulation function analysis of flood storage areas, and flood dynamic management, and has a wide range of uses in river basin flood control planning. In addition, this block can be used in conjunction with other water quality models to simulate and predict water environment. The unsteady flow module adopts the UNET model, and the basic equations include the continuity equation and the momentum equation, which are solved using the four-point implicit finite difference method.

[0030] The sediment transport module in the HEC-RAS integrated system 7 is mainly used to simulate the scouring and silting changes of the longitudinal section of the river channel in a medium time scale (generally many years). This model fully considers the influence of hydraulics, sediment transport, channel roughness and related boundary condition changes, and provides a variety of methods to calculate the sediment transport rate. The HEC-RAS model can be used for reservoir sedimentation calculation, channel regulation project design, dredging and its impact on sedimentation, comparison of various embankment construction plans, estimation of the maximum possible scouring depth during a major flood, bridge platform scouring and channel sediment sedimentation analysis. The water quality analysis module can simulate water body temperature and some water quality (algae, dissolved oxygen, COD. Phosphate, organic phosphorus, ammonia nitrogen, ammonium nitrite, ammonium nitrate, organic nitrogen) and can be used for riverbank water quality analysis, pollutant migration law research, water body pollution capacity evaluation, water environment quality analysis and prediction, etc. It plays an important role in the fields of pollution source control and water environment protection, and helps managers to carry out further work on water pollution.

[0031] The water flow anti-impact mechanism in the embodiment of the present invention comprises a rubber plate 6, a rotating disk 8, a booster rod 9, a rubber plate fixed shaft 10, a rotating disk fixed point 11, a rubber telescopic sealing joint 12, a first motor 13 and a first motor fixed shaft 14; the rubber plate 6 is movably mounted at the front end of the device body through the rubber plate fixed shaft 10, and five first motors 13 are arranged at the rear of the rubber plate 6 inside the device body, each motor is controlled in parallel, and a signal connection is established with the HEC-RAS integrated system 7; the output end of the first motor 13 is connected to the first motor fixed shaft 14, and the other end of the first motor fixed shaft 14 is connected to the rotating disk 8, and the rotating disk 8 is provided with a rotating disk fixed point 11, and the rotating disk fixed point 11 is connected to the booster rod 9, and the other end of the booster rod 9 is connected to the rubber plate 6, and the end of the rubber plate 6 is elastically connected to the device body through the rubber telescopic sealing joint 12. The principle of the water flow anti-impact mechanism is: the device body is installed upstream of the dam, and the impact force of the water flow impacting the dam is reduced by adjusting the direction of the water flow, thereby reducing the risk of the dam being destroyed. When the HEC-RAS integrated system 7 performs data analysis, it simulates and analyzes the direction of water flow development and issues water flow impact resistance information. Five first motors 13 are set at the rear of the rubber plate 6 in the water flow impact resistance part. Each motor is controlled in parallel and can be rotated to different angles through different instructions of the HEC-RAS integrated system 7, thereby controlling the booster rod 9 to extend and retract to different lengths, and adjusting the rubber plate 6 from the original straight line to an "S" shape or a "C" shape, so that the direct rushing water flow of the gate and dam that directly impacts the gate and dam changes direction and concentrates in the center of the river channel, reducing the impact force on both sides of the gate and dam. Specifically, when the HEC-RAS integrated system 7 issues water flow impact resistance information, the rotating disk 8 on the fixed shaft 14 of the first motor pushes the rubber plate 6 to move toward the center of the river channel through the booster rod 9 on the fixed point 11 of the rotating disk, so that the direct rushing water flow of the gate and dam that directly impacts the gate and dam changes direction and concentrates in the center of the river channel, reducing the impact force on both sides of the gate and dam.

[0032] The sludge treatment mechanism in the embodiment of the present invention includes a sludge discharge blade 5, a second motor 15 and a second motor fixed shaft 16. The second motor 15 is fixed at the bottom of the device body. The output end of the second motor 15 is connected to the sludge discharge blade 5 through the second motor fixed shaft 16. The sludge discharge blade 5 is located outside the device body. When the analysis terminal 2 collects data information and the HEC-RAS integrated system 7 performs data analysis and issues a sewage discharge signal, the second motor 15 drives the sludge discharge blade 5 to rotate through the second motor fixed shaft 16, and the sludge deposited at the bottom of the river channel and the dam is discharged through the moving water flow by the rotation force of the sludge discharge blade 5.

[0033] In order to further better explain the embodiments of the present invention, a method for using a river dam anti-impact device based on HEC-RAS is also provided, comprising the following steps:

[0034] S1: Three water inlet analysis ports 1 are set at the upper, middle and lower parts of the water quality collection part. Three analysis terminals 2 are set in each of the water inlet analysis ports 1. The three water inlet analysis ports 1 can ensure water quality collection at different water levels. Three water discharge plates 4 are set at the upper, middle and lower sides of the three water inlet analysis ports 1. When the water in the river flows through the water inlet analysis ports 1, the analysis terminals 2 in the water inlet analysis ports 1 collect data, and the data is transmitted to the HEC-RAS integrated system 7 for data analysis. The water flow development direction is simulated and analyzed, and the water flow impact resistance information is issued. After data analysis, the water flows into the river through the one-way water discharge plate 4;

[0035] S2: When the HEC-RAS integrated system 7 performs data analysis, simulates and analyzes the direction of water flow development, and issues water flow anti-impact information, five first motors 13 are set at the rear of the rubber plate 6 in the water flow anti-impact part. Each motor is controlled in parallel and can be rotated to different angles through different instructions of the HEC-RAS integrated system 7, so that the rubber plate 6 is adjusted from the original straight line to an "S" shape or a "C" shape, so that the direct rushing water flow of the gate and dam that directly impacts the gate and dam changes direction and concentrates in the center of the river channel, reducing the impact force on both sides of the gate and dam. This part is for the HEC-RAS integrated system 7 to issue water flow anti-impact information. The first motor 13 drives the rotating disk 8 to rotate through the first motor fixed shaft 14, and the rotation of the rotating disk 8 drives the rotating disk fixed point 11 to rotate, so that the booster rod 9 on the rotating disk fixed point 11 can be extended and retracted to different lengths, pushing the rubber plate 6 to move toward the center of the river channel, so that the direct rushing water flow of the gate and dam that directly impacts the gate and dam changes direction and concentrates in the center of the river channel, reducing the impact force on both sides of the gate and dam;

[0036] S3: When the analysis terminal 2 collects data information, the HEC-RAS integrated system 7 performs data analysis and issues a sewage discharge signal, the second motor 15 drives the mud discharge blades 5 to rotate through the second motor fixed shaft 16, and the mud deposited at the bottom of the river channel and the dam is discharged through the moving water flow by the rotation force of the mud discharge blades 5.

[0037] In summary: the HEC-RAS-based river dam anti-impact device and method of use provided by the present invention installs the device body on both sides of the upstream of the dam, and when the upstream water flows through the water inlet analysis port 1, it is analyzed by the HEC-RAS integrated system 7, and the direction of water flow development is simulated and analyzed, and the water flow direction adjustment instruction is issued to achieve the anti-impact effect. At the same time, combined with the HEC-RAS integrated system 7, the influence of hydraulics, sediment transport, channel roughness and related boundary condition change factors can be fully considered, and the instruction is issued, and the lower mud discharge fan blade 5 rotates to remove the riverbed silt through the moving water flow. The HEC-RAS integrated system 7 can also perform water quality analysis, report water body algae, dissolved oxygen, COD. Phosphate, organic phosphorus, ammonia nitrogen, ammonium nitrite, ammonium nitrate, organic nitrogen content, send relevant water quality reports to management personnel, and help management personnel to carry out further work on water pollution.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. The river dam anti-impact device based on HEC-RAS is characterized by: The device comprises a water quality collection and treatment mechanism, a water flow anti-impact mechanism and a sludge treatment mechanism; the water quality collection and treatment mechanism comprises a water inlet analysis port (1), an analysis terminal (2), a bolt (3), a water discharge plate (4) and a HEC-RAS integrated system (7); the water inlet analysis port (1) is located at the upper, middle and lower positions of the water inlet end of the device body, and the water inlet analysis port (1) is provided with an analysis terminal (2), and the analysis terminal (2) establishes a data communication connection with the HEC-RAS integrated system (7); three water discharge plates (4) are provided at the upper, middle and lower positions on the right side of the water inlet analysis port (1), and the water discharge plates (4) are fixed to the device body by bolts (3); The water flow anti-impact mechanism comprises a rubber plate (6), a rotating disk (8), a booster rod (9), a rubber plate fixed shaft (10), a rotating disk fixed point (11), a rubber telescopic sealing joint (12), a first motor (13) and a first motor fixed shaft (14); the rubber plate (6) is movably mounted on the front end of the device body through the rubber plate fixed shaft (10); five first motors (13) are arranged at the rear of the rubber plate (6) inside the device body; each motor is controlled in parallel and establishes a signal connection with the HEC-RAS integrated system (7); the output end of the first motor (13) is connected to the first motor fixed shaft (14); the other end of the first motor fixed shaft (14) is connected to the rotating disk (8); a rotating disk fixed point (11) is arranged on the rotating disk (8); the rotating disk fixed point (11) is connected to the booster rod (9); the other end of the booster rod (9) is connected to the rubber plate (6); the end of the rubber plate (6) is elastically connected to the device body through the rubber telescopic sealing joint (12); The sludge treatment mechanism comprises a sludge discharge blade (5), a second motor (15) and a second motor fixed shaft (16); the second motor (15) is fixed at the bottom of the device body; the output end of the second motor (15) is connected to the sludge discharge blade (5) via the second motor fixed shaft (16); and the sludge discharge blade (5) is located outside the device body.

2. The HEC-RAS-based river dam impact resistance device according to claim 1, characterized in that: The water inlet analysis ports (1) arranged at the upper, middle and lower positions on the device body are used to collect water quality at different water levels.

3. The HEC-RAS-based river dam impact resistance device according to claim 1, characterized in that: The water drain plate (4) is a one-way flow structure on the device body.

4. The HEC-RAS-based river dam impact resistance device according to claim 1, characterized in that: The rubber plate (6) can be transformed into an "S" shape or a "C" shape around a rubber plate fixing shaft (10) for reducing the impact force on both sides of the dam.

5. The HEC-RAS-based river dam impact resistance device according to claim 1, characterized in that: The rotating disk (8) on the first motor fixed shaft (14) pushes the rubber plate (6) toward the center of the river channel through the booster rod (9) on the rotating disk fixed point (11), so as to change the direction of the straight water flow.

6. The HEC-RAS-based river dam impact resistance device according to claim 1, characterized in that: The second motor (15) is controlled by the HEC-RAS integrated system (7). The second motor (15) drives the mud discharge blade (5) to rotate through the second motor fixed shaft (16), so as to discharge the silt deposited at the bottom of the river channel and the dam through the moving water flow.

7. The method for using the HEC-RAS-based river dam impact resistance device according to claim 1, characterized in that: The following steps are involved: S1: When the water in the river flows into the water inlet analysis port (1), the analysis terminal (2) in the water inlet analysis port (1) collects data, and the data is transmitted to the HEC-RAS integrated system (7) for data analysis, and the direction of water flow development is analyzed through simulation; S2: The HEC-RAS integrated system (7) issues water flow anti-impact information and sends different rotation instructions to the five first motors (13) controlled in parallel, thereby controlling the booster rod (9) to extend and retract to different lengths, and adjusting the rubber plate (6) from the original straight line to an "S" shape or a "C" shape, so that the water flow directly impacting the dam changes direction and is concentrated in the center of the river channel, thereby reducing the impact force on both sides of the dam; S3: When the analysis terminal (2) collects data information and the HEC-RAS integrated system (7) performs data analysis and issues a sewage discharge signal, the second motor (15) drives the mud discharge blade (5) to rotate through the second motor fixed shaft (16), and the mud deposited at the bottom of the river channel and the dam is discharged through the moving water flow by the rotation force of the mud discharge blade (5).

Images