River lock and dam anti-impact device based on hec-ras and use method thereof

Abstract

The application discloses a riverway dam impact-resistant device based on HEC-RAS and a use method, and belongs to the technical field of riverway water flow treatment. The device comprises a water quality collecting and treating mechanism, a water flow impact-resistant mechanism and a sludge treating mechanism. The water quality collecting and treating mechanism comprises a water inlet analysis port, an analysis terminal, bolts, a water outlet plate and an HEC-RAS integrated system. The water flow impact-resistant mechanism comprises rubber plates, a rotating disc, a boost rod, rubber plate fixing shafts, rotating disc fixing points, rubber telescopic sealing joints, a first motor and a first motor fixing shaft. The sludge treating mechanism comprises sludge discharging fan blades, a second motor and a second motor fixing shaft. The device body is installed on both banks of the upstream of the dam, when the upstream water flow passes through the water inlet analysis port, is analyzed by the HEC-RAS integrated system, the water flow development direction is simulated and analyzed, and the water flow direction adjusting instruction is issued to achieve the impact-resistant effect. Meanwhile, the sewage discharging signal instruction can be issued, and the river bottom sludge can be discharged through the moving water flow.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of river flow treatment, in particular to a river lock and dam impact-resistant device based on HEC-RAS and a use method thereof. BACKGROUND

[0002] Water conservancy construction refers to the activities of new construction, reconstruction, expansion and reinforcement of various water conservancy projects, and the functions of river lock and dam include flood control, sediment control, water quality improvement and irrigation. The lock and dam can resist the attack of flood and reduce the impact of flood disaster, and can also control water flow, prevent silt and improve water quality, and protect the ecological environment. HEC-RAS is a river hydraulic calculation program. HEC-RAS currently supports one-dimensional / two-dimensional hydrodynamic model, one-dimensional movable bed sediment transport model, one-dimensional water quality model, and also has the ability to couple hydraulic structures (dam, dike, weir, culvert, bridge, etc.). HEC-RAS is free to the public, maintains stable development progress, and has wide application in water conservancy design, dam break assessment, floodplain assessment, bridge water design, pump station scheduling, etc. However, the existing lock and dam impact-resistant device for water conservancy construction has few integrated settings combined with HEC-RAS, and the anti-impact ability is usually not strong, it is difficult to reduce the impact force of large water flow on the dam, it is difficult to improve the protection of the dam, and at the same time, it cannot realize the integrated treatment process of water quality, water flow and silt, and needs to be further improved. SUMMARY

[0003] The present application relates to the technical field of river flow treatment, in particular to a river lock and dam impact-resistant device based on HEC-RAS and a use method thereof.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] The application discloses a river lock and dam impact resistance device based on HEC-RAS, which comprises a water quality collecting and processing mechanism, a water flow impact resistance mechanism and a sludge processing mechanism.

[0006] Preferably, the upper, middle and lower water inlet analysis ports arranged on the device body are used for collecting water quality at different water levels.

[0007] Preferably, the water outlet plates arranged on the device body are one-way flow structures.

[0008] Preferably, the rubber plate can be changed into an "S" shape or a "C" shape around the rubber plate fixing shaft to reduce the impact force on both sides of the lock and dam.

[0009] Preferably, the rotating disc on the first motor fixing shaft drives the rubber plate to move to the center of the river channel through the push rod on the rotating disc fixing point, so as to change the direction of the straight water flow.

[0010] Preferably, the second motor is controlled by the HEC-RAS integrated system, and the second motor drives the sludge discharge fan blade to rotate through the second motor fixing shaft, so that the sludge deposited at the bottom of the river channel and the lock and dam is discharged through the moving water flow.

[0011] The application provides another technical scheme: a use method of the river lock and dam impact resistance device based on HEC-RAS, which comprises the following steps:

[0012] S1: When the water flow 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 development direction of the water flow is simulated and analyzed;

[0013] S2: The water flow impact resistance information is issued by the HEC-RAS integrated system, and different rotation instructions are issued to the five parallel controlled first motors, so that the push rod is retracted to different lengths, and the rubber plate is adjusted from the original straight line form to the "S" shape and the "C" shape, so that the straight impact water flow directly impacting the dam changes direction and is concentrated 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 analyzes the data and issues a sewage discharge signal, the second motor rotates the mud discharge fan blade through the second motor fixed shaft, and the sediment deposited at the bottom of the river, dam is discharged through the movement of the water flow.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] The river dam impact resistance device and use method based on HEC-RAS of the present application installs the device main body on the upstream of the dam, when the upstream water flow passes through the water inlet analysis port, the HEC-RAS integrated system analyzes the development direction of the water flow, issues a water flow direction adjusting instruction to achieve the impact resistance effect. At the same time, the HEC-RAS integrated system can fully consider the influence of the change factors of hydraulics, sediment transport, channel roughness and related boundary conditions, issue instructions, and the lower mud discharge fan blade rotates to discharge the river bottom silt through the movement of the water flow. Based on the HEC-RAS integrated system, water quality analysis can also be performed, and the content of algae, dissolved oxygen, COD, phosphate, organic phosphorus, ammonia nitrogen, nitrite, nitrate, and organic nitrogen in the water body is reported to the management personnel, helping the management personnel to further work according to the water pollution. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the impact resistance device of the present application;

[0018] Figure 2 It is a side view of the impact resistance device of the present application;

[0019] Figure 3 It is a top view of the impact resistance device of the present application;

[0020] Figure 4 It is a water flow direction diagram of the impact resistance device of the present application;

[0021] Figure 5 It is a water flow direction impact resistance diagram of the impact resistance device of the present application;

[0022] Figure 6 The water flow direction detection diagram of the impact resistance device of the application;

[0023] Figure 7 The river bottom silt cleaning work diagram of the impact resistance device of the application;

[0024] Figure 8 The non-working state layout diagram of the impact resistance device of the application;

[0025] Figure 9 The river flow direction adjustment diagram of the impact resistance device of the application.

[0026] In the figure: 1, water inlet analysis port; 2, analysis terminal; 3, bolt; 4, water discharge plate; 5, silt fan blade; 6, rubber plate; 7, HEC-RAS integrated system; 8, rotating disc; 9, boost rod; 10, rubber plate fixing shaft; 11, rotating disc 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 technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0028] Please refer to Figures 1-9 The embodiment of the application provides a river channel gate dam impact resistance device based on HEC-RAS, which comprises a water quality collection and treatment mechanism, a water flow impact resistance mechanism and a silt 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 an HEC-RAS integrated system 7. Specifically, three water inlet analysis ports 1 are arranged at the upper, middle and lower positions of the water quality collection part, and three analysis terminals 2 are arranged in each water inlet analysis port 1. The three water inlet analysis ports 1 at the upper, middle and lower positions can ensure water quality collection at different water levels. Three water discharge plates 4 are arranged at the right side of the three water inlet analysis ports 1. When the water flow in the river channel passes through 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. The development direction of the water flow is simulated and analyzed, and the water flow impact resistance information is issued. The water after data analysis flows into the river through the one-way water discharge plate 4.

[0029] The HEC-RAS integrated system 7 in the embodiment of the present application adopts an existing program module for river hydraulic calculation, and can be used to calculate constant gradually changing flow water surface line, and simulate single river, tree-shaped or ring-shaped river network system. The constant flow module can solve water surface line of three flow states of slow flow, rapid flow and mixed flow. The basic equation of the module is energy equation, and direct step method is used for iterative solution. The head loss along the way is determined according to the Manning formula, and the local head loss is determined based on the flow velocity head change value. In the area where the flow velocity changes sharply, such as bridge, river mouth and the like, the flow state is complex, and the energy loss is determined according to the momentum equation. The HEC-RAS integrated system 7 in the embodiment can also be used to simulate one-dimensional unsteady flow process of river network, can consider bridge, culvert, gate, weir, spillway and other water-related buildings, can dynamically control gate opening, simulate actual culvert regulation process, and can also simulate the regulation and storage effect of storage area and river channel, and various complex hydraulic connections between multiple storage areas and between storage area and river system. The module can be used for river network flood evolution process simulation, reservoir discharge influence analysis, flood storage area flood regulation effect analysis and flood dynamic management, and has wide application in flood control planning of a basin. In addition, the module can also be used in combination with other water quality models to simulate and predict water environment. The unsteady flow module adopts UNET model, and the basic equations include continuity equation and momentum equation, and four-point implicit finite difference method is used for solution.

[0030] The sediment transport module in the HEC-RAS integrated system 7 is mainly used to simulate the erosion and deposition changes of the river longitudinal profile in the medium time scale (generally for many years). The model fully considers the influence of hydraulics, sediment transport, channel roughness and related boundary condition changes, and provides various methods to calculate the sediment transport rate. The HEC-RAS model can be used for reservoir siltation calculation, waterway regulation engineering design, dredging and its influence on siltation, comparison of various dike construction schemes, estimation of the maximum possible scour depth during a large flood, bridge pier scour and channel sedimentation analysis, etc. The water quality analysis module can simulate water temperature and part of water quality (algae, dissolved oxygen, COD, phosphate, organic phosphorus, ammonia nitrogen, nitrite salt, nitrate salt and organic nitrogen), and can be used for river bank water quality analysis, pollutant migration rule research, water body pollution carrying capacity evaluation, water environment quality analysis and prediction, etc. It plays an important role in the field of pollution source treatment and water environment protection, and helps management personnel to further work on water quality pollution.

[0031] The water flow impact resisting mechanism in the embodiment of the present application comprises a rubber plate 6, a rotating disc 8, a boost rod 9, a rubber plate fixing shaft 10, a rotating disc fixing point 11, a rubber telescopic sealing joint 12, a first motor 13 and a first motor fixing shaft 14; the rubber plate 6 is movably installed at the front end of the device main body through the rubber plate fixing shaft 10, five first motors 13 are arranged at the rear part of the rubber plate 6 in the device main body, each motor is controlled in parallel, and signal connection is established with the HEC-RAS integrated system 7; the output end of the first motor 13 is connected with the first motor fixing shaft 14, the other end of the first motor fixing shaft 14 is connected with the rotating disc 8, the rotating disc 8 is provided with the rotating disc fixing point 11, the rotating disc fixing point 11 is connected with the boost rod 9, the other end of the boost rod 9 is connected with the rubber plate 6, and the end part of the rubber plate 6 is elastically connected with the device main body through the rubber telescopic sealing joint 12. The principle of the water flow impact resisting mechanism is as follows: the device main body is installed on the upstream of the dam, the water flow direction is adjusted, the impact force of the water flow impacting the dam is reduced, and thus the risk of dam destruction is reduced. When the HEC-RAS integrated system 7 performs data analysis, the water flow impact resisting information is issued by simulating and analyzing the water flow development direction. Five first motors 13 are arranged at the rear part of the rubber plate 6 in the water flow impact resisting part, each motor is controlled in parallel, different angles can be rotated by different instructions of the HEC-RAS integrated system 7, different lengths of the boost rod 9 are extended and retracted, the rubber plate 6 is adjusted from the original linear form to the "S" shape and the "C" shape, the straight water flow directly impacting the dam is changed in direction and concentrated in the river central part, and the impact force on both sides of the dam is reduced. Specifically, when the HEC-RAS integrated system 7 issues the water flow impact resisting information, the rotating disc 8 on the first motor fixing shaft 14 drives the rubber plate 6 to move to the river central part through the boost rod 9 on the rotating disc fixing point 11, the straight water flow directly impacting the dam is changed in direction and concentrated in the river central part, and the impact force on both sides of the dam is reduced.

[0032] The sludge treatment mechanism in the embodiment of the present application comprises a sludge discharge fan blade 5, a second motor 15 and a second motor fixing shaft 16; the second motor 15 is fixed at the bottom of the device main body, the output end of the second motor 15 is connected with the sludge discharge fan blade 5 through the second motor fixing shaft 16, and the sludge discharge fan blade 5 is located outside the device main body; when the data analysis terminal 2 collects data information, the HEC-RAS integrated system 7 performs data analysis and issues a sludge discharge signal, the second motor 15 drives the sludge discharge fan blade 5 to rotate through the second motor fixing shaft 16, and the sludge deposited at the bottom of the river and the dam is discharged through the water flow by the rotating force of the sludge discharge fan blade 5.

[0033] In order to further better explain the embodiment of the present application, a use method of the river dam impact resisting device based on HEC-RAS is also provided, which comprises the following steps:

[0034] S1: three water inlet analysis ports 1 are arranged at upper, middle and lower positions of the water quality collecting part, three analysis terminals 2 are arranged in the water inlet analysis port 1, the upper, middle and lower three water inlet analysis ports 1 can ensure water quality collection at different water levels. Three water outlet plates 4 are arranged at the right side of the three water inlet analysis ports 1, when the water flow in the river passes through the water inlet analysis port 1, the analysis terminal 2 in the water inlet analysis port 1 collects data, the data is transmitted to the HEC-RAS integrated system 7 for data analysis, the development direction of the water flow is simulated and analyzed, the water flow impact resistance information is issued, and the water after data analysis flows into the river through the one-way water outlet plate 4;

[0035] S2: when the HEC-RAS integrated system 7 analyzes data, simulates and analyzes the development direction of the water flow, and issues the water flow impact resistance information, five first motors 13 are arranged at the rear of the rubber plate 6 in the water flow impact resistance part, each motor is controlled in parallel, can rotate at different angles through different instructions of the HEC-RAS integrated system 7, adjusts the rubber plate 6 from the original straight line form to the "S" shape and the "C" shape, so that the straight impact water flow directly impacting the gate dam changes direction and concentrates in the central river, reducing the impact force on both sides of the gate dam. This part is the water flow impact resistance information issued by the HEC-RAS integrated system 7, the first motor 13 drives the rotating disc 8 to rotate through the first motor fixed shaft 14, the rotating disc 8 drives the rotating disc fixed point 11 to rotate, so that the boost rod 9 on the rotating disc fixed point 11 extends to different lengths, pushes the rubber plate 6 to move to the central river, so that the straight impact water flow directly impacting the gate dam changes direction and concentrates in the central river, reducing the impact force on both sides of the gate dam;

[0036] S3: when the analysis terminal 2 collects data information, the HEC-RAS integrated system 7 analyzes data, and issues the sewage discharge signal, the second motor 15 drives the mud discharge fan blade 5 to rotate through the second motor fixed shaft 16, and the mud deposited at the bottom of the river and the gate dam is discharged through the rotating force of the mud discharge fan blade 5.

[0037] In summary: the river gate dam impact resistance device and use method based on HEC-RAS provided by the application, the device body is installed on both sides of the gate dam upstream, when the upstream water flow passes through the water inlet analysis port 1, the HEC-RAS integrated system 7 analyzes, simulates and analyzes the development direction of the water flow, and issues the water flow direction adjustment instruction to achieve the impact resistance effect. At the same time, the HEC-RAS integrated system 7 can fully consider the influence of the factors such as hydraulics, sediment transport, channel roughness and related boundary condition changes, issue instructions, and the lower mud discharge fan blade 5 rotates to discharge the river bottom mud through the moving water flow. The HEC-RAS integrated system 7 can also analyze water quality, report the content of algae, dissolved oxygen, COD, phosphate, organic phosphorus, ammonia nitrogen, nitrite, nitrate, and organic nitrogen in water, and send relevant water quality reports to the management personnel, helping the management personnel to further work according to the water pollution.

[0038] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. The HEC-RAS-based river dam anti-impact device is characterized by: The device comprises a water quality collection and processing mechanism, a water flow anti-impact mechanism and a sludge processing mechanism; the water quality collection and processing mechanism comprises a water inlet analysis port (1), an analysis terminal (2), a bolt (3), a drain 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 drain plates (4) are provided on the right side of the water inlet analysis port (1), and the drain 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), the rotating disk fixed point (11) is provided 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), and 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 fan blade (5), a second motor (15) and a second motor fixed shaft (16), wherein the second motor (15) is fixed to the bottom of the device body, and the output end of the second motor (15) is connected to the sludge discharge fan blade (5) via the second motor fixed shaft (16), and the sludge discharge fan blade (5) is located outside the device body; The rubber plate (6) can be transformed into an "S" shape or a "C" shape around the rubber plate fixed shaft (10) for reducing the impact force on both sides of the dam; 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) to change the direction of the straight-flow water flow; the second motor (15) is controlled by the HEC-RAS integrated system (7), and the second motor (15) drives the mud discharge fan blade (5) to rotate through the second motor fixed shaft (16), so that the silt deposited at the bottom of the river channel and the dam is discharged through the moving water flow.

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 anti-impact device according to claim 1, characterized in that: The drain plate (4) is a one-way flow structure on the device body.

4. The method for using the HEC-RAS-based river dam anti-impact 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 transmits the data to the HEC-RAS integrated system (7) for data analysis, and analyzes the direction of water flow through simulation; S2: The HEC-RAS integrated system (7) issues water flow anti-impact information, and issues different rotation instructions to the five parallel-controlled first motors (13), thereby controlling the booster rod (9) to extend and retract to different lengths, and adjusting the rubber plate (6) from the original straight shape to an "S" shape or a "C" shape, so that the direct water flow directly impacting the dam changes direction and is concentrated in the center of the river channel, 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 fan (5) to rotate through the second motor fixed shaft (16), and the silt deposited at the bottom of the river channel and the dam is discharged through the moving water flow.

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