A system for constructing a gap dam

Abstract

The invention discloses a system for constructing a gap dam, and relates to the technical field of debris flow prevention and control, comprising a gap dam and a water spillway, which is opened in the middle of the gap dam, an overflow port is opened on the top of the gap dam, a layer of gabions is fixedly installed outside the entrance of the water spillway, a second layer of gabions is fixedly installed inside the first layer of gabions, a gap that can be filled with stones is provided between the first layer of gabions and the second layer of gabions, a partition is fixedly installed inside the entrance of the water spillway, the outside of the partition extends out of the water spillway and is arranged close to the second layer of gabions, by arranging the first layer of gabions and the second layer of gabions, large solid materials of the debris flow are effectively intercepted, and by arranging a water wheel shaft and a water wheel blade in the water spillway, small materials such as water flow can be promoted to quickly pass through the water spillway, so as to reduce the impact force and volatility of the water flow and make the water flow more stable.

Description

Technical Field

[0001] The invention relates to the technical field of debris flow prevention and control, and in particular to a construction system of a gap dam. Background Art

[0002] Debris flow is a serious natural disaster with strong impact and destructive power, often resulting in casualties, property losses and ecological damage. Therefore, it is crucial to take effective measures to prevent and control debris flows. A silt-stopping dam is an important engineering measure for debris flow prevention and control. Its main function is to intercept debris flows and allow solid matter in the debris flows to accumulate in front of the dam, thereby reducing the flow and energy of the debris flows and reducing the degree of damage caused by the debris flows. Among them is a concrete retaining dam, in which one or several rows of silt-stopping holes are opened in the lower layer of the concrete retaining dam, and a drift-stopping overflow trough is opened on the surface of the concrete retaining dam.

[0003] In the prior art, due to the complexity of the terrain, there is a wide U-shaped valley terrain. The terrain characteristics of the wide U-shaped valley make the flow of water in the valley more complicated, the water flow speed and direction vary greatly, and the water flow stability is poor, which poses a challenge to the water flow stability of the spillway. Since the construction of the silt-stopping earth dam has changed the original water flow form and hydraulic conditions, the flow velocity, direction and energy distribution of the water flow have changed under the obstruction of the dam body, all of which will lead to water flow instability. Summary of the invention

[0004] The object of the present invention is to provide a system for constructing a slit dam to solve the problem of unstable water flow during siltation.

[0005] The present invention is achieved through the following technical solutions: A system for constructing a gap dam, comprising a gap dam, and further comprising: A drain port is provided in the middle of the slit dam, an overflow port is provided at the top of the slit dam, a layer of gabions is fixedly installed outside the drain port entrance, a second layer of gabions is fixedly installed inside the first layer of gabions, a gap that can be filled with stones is provided between the first layer of gabions and the second layer of gabions, a partition is fixedly installed inside the drain port entrance, the drain port is extended outside the partition and is arranged close to the second layer of gabions, a water wheel shaft is rotatably installed on the partition, and water wheel blades are fixedly installed outside the water wheel shaft to promote water flow and improve water flow stability.

[0006] Furthermore, the outermost ends of the top and bottom of the partition are fixedly installed with fixing frames, and the fixing frames are fixedly installed on the tops of the first-layer gabion and the second-layer gabion to provide support and improve stability.

[0007] Furthermore, a side bracket is fixedly installed on the top of the side of the partition, and the side bracket is externally fixedly installed on the top of the first-layer gabion and the second-layer gabion to increase fixity and improve stability.

[0008] Furthermore, the acute angle formed by the side bracket and the partition is set at sixty degrees, providing a multi-angle support effect.

[0009] Furthermore, an auxiliary mechanism is also provided on the water wheel blade, and the auxiliary mechanism includes a sliding column, and the sliding column penetrates and is slidably installed on the water wheel blade. The water wheel blade is arc-shaped and concave, and the concave shape facilitates the aggregation of water flow.

[0010] Furthermore, a first concave disc is fixedly mounted on the top of the slide column, and a second concave disc is fixedly mounted on the bottom of the slide column. The concave design facilitates the aggregation of water flow and improves the driving force of the water flow.

[0011] Furthermore, the radius of the first concave disk is twice that of the second concave disk, so that the thrust of the water flow convergence on the first concave disk is greater than the thrust of the water flow convergence on the second concave disk.

[0012] Furthermore, an arc rod is fixedly installed on the outside of the sliding column, and the curvature of the arc rod is the same as the curvature of the inner surface of the water wheel blade, so that it is easy to fit the inner concave surface of the water wheel blade and to break up the deposited materials.

[0013] Furthermore, a notch is provided on the side of the water wheel blade, a limit rod is fixedly mounted on the slide column, and the limit rod is arranged outside the water wheel blade. The notch is arranged to facilitate the discharge of small particles and other substances.

[0014] Furthermore, a stopper is slidably installed on the slot, a connecting block is fixedly installed outside the stopper, the connecting block is fixedly installed on the top of the limiting rod, the limiting rod slides on the side outer wall of the water wheel blade, and the slot is closed due to the movement of the stopper, which facilitates the aggregation effect of the concave water flow in the water wheel blade.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention can effectively intercept large solid materials of debris flow by providing a first layer of gabions and a second layer of gabions. At the same time, a water wheel shaft and a water wheel blade are provided in the water discharge port, which can promote small materials such as water flow to quickly pass through the water discharge port, thereby achieving the effect of improving work efficiency, and can also play a certain role in regulating the water flow at the water discharge port, while reducing the impact force and volatility of the water flow, making the water flow more stable, reducing the scouring and damage to the downstream river and water conservancy facilities, and ensuring the working efficiency of the gap dam; 2. In the present invention, when the water flow contacts the water wheel blades at the lower part of the water wheel shaft, the first concave disc will be subjected to the thrust of the water flow aggregation and drive the arc rod to gradually fit the concave surface of the water wheel blades. The movement of the sliding column will drive the limit rod to move downward, and the limit rod will drive the connecting block to move downward. The connecting block drives the stopper to move downward to close the notch, so that the notch is closed. The closing of the notch will increase the aggregation range of the water wheel blades, so that the aggregation force of the water flow is improved, and then the push of the water flow is improved, which is convenient for the water wheel blades to start and rotate faster. 3. In the present invention, when the water wheel blade rotates to the upper part of the water wheel shaft, the water flow will generate a driving force on the second concave disc, and the second concave disc will drive the sliding column to move in the direction of the water wheel blade, and the sliding column will drive the limit rod to move accordingly, and the limit rod will drive the connecting block to move accordingly, and the connecting block will drive the stopper to move accordingly to open the notch, and the opening of the notch can allow the water flow and small particles on the concave surface of the water wheel blade to leave the concave surface of the water wheel blade, thereby discharging the small particles deposited on the concave surface of the water wheel blade due to the aggregation of the water flow; 4. In the present invention, the movement of the slide column will also drive the No. 1 concave circular disk to leave the concave surface of the water wheel blade and move outward. The No. 1 concave circular disk will also push out the small particles deposited on the concave surface of the water wheel blade. At the same time, the slide column will also drive the arc rod to follow the movement. The outward movement of the arc rod can break up the small particles deposited on the concave surface of the water wheel blade, promote the discharge of the small particles, and prevent the small particles from being attached to the concave surface of the water wheel blade for a long time due to the aggregation of water flow, thereby affecting the subsequent water flow aggregation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings: Figure 1 It is a schematic diagram of the external structure of the gap dam of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the gap dam; Figure 3 This is a schematic diagram of the external partial structure of a layer of gabion; Figure 4 This is a schematic diagram of the partial internal structure of the second-layer gabion from above; Figure 5 It is a schematic diagram of the external local structure of the partition; Figure 6 It is a schematic diagram of the external partial structure of the water wheel shaft; Figure 7 It is a schematic diagram of the external partial structure of the water wheel blade; Figure 8 This is a schematic diagram of the local structure at the bottom of the water turbine blade.

[0017] The reference numerals represent: 1-gap dam, 3-overflow, 4-drainage outlet, 5-first-layer gabion, 6-second-layer gabion, 7-partition, 8-water wheel shaft, 9-water wheel blade, 10-fixed frame, 11-side bracket, 12-sliding column, 13-No. 1 concave disc, 14-No. 2 concave disc, 15-arc rod, 16-slot, 17-limit rod, 18-block, 19-connecting block. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0019] like Figures 1 to 8 As shown, the present invention includes a gap dam 1, and also includes: The drain port 4 is provided in the middle of the gap dam 1, and an overflow port 3 is provided at the top of the gap dam 1. A layer of gabions 5 is fixedly installed outside the entrance of the drain port 4, and a second layer of gabions 6 is fixedly installed inside the first layer of gabions 5. A gap that can be filled with stones is provided between the first layer of gabions 5 and the second layer of gabions 6. A partition plate 7 is fixedly installed inside the entrance of the drain port 4, and the outside of the partition plate 7 extends out of the drain port 4 and is arranged close to the second layer of gabions 6. A water wheel shaft 8 is rotatably installed on the partition plate 7, and a water wheel blade 9 is fixedly installed outside the water wheel shaft 8; The outermost ends of the top and bottom of the partition 7 are fixedly installed with fixing frames 10, and the fixing frames 10 are fixedly installed on the top of the first-layer gabion 5 and the second-layer gabion 6. The top of the side of the partition 7 is fixedly installed with a side bracket 11, and the acute angle formed by the side bracket 11 and the partition 7 is set to be sixty degrees. The side bracket 11 is externally fixedly installed on the top of the first-layer gabion 5 and the second-layer gabion 6. By providing the partition 7, the fixing frame 10 and the side bracket 11, better support can be provided to the first-layer gabion 5 and the second-layer gabion 6, thereby improving stability to better cope with the impact of mudslides.

[0020] In the above technical scheme, when the regular flow of water, mountain torrents and small debris flows in the ditch act on the stop silt dam, it is the dam body of the concrete gap dam 1 that bears the force and erosion, making full use of the high durability of concrete compared to earth-rock dams to withstand the long-term ordinary erosion in the ditch. At this time, the fine particles in the running water, mountain torrents and small debris flows will enter the drainage channel through the gap dam 1 through the discharge port 4 closely connected to the lower part of the dam body of the concrete gap dam 1, and then be discharged into the main river along the drainage channel. When the debris flow contacts the front of the gap dam 1, the debris will be discharged into the main river. The flow will first contact a layer of gabions 5, and the large solid materials of the debris flow will be intercepted by the first layer of gabions 5 and the second layer of gabions 6, while the small material fine particles will enter the drain port 4 with the flowing water through the first layer of gabions 5 and the second layer of gabions 6. The flowing water and other small materials entering the drain port 4 will drive the water wheel blades 9 to rotate with the flow of the flowing water. When the water wheel blades 9 start to rotate, it will promote the water flow and other small materials to pass through the drain port 4 more quickly without staying too much, preventing the blockage caused by staying for a long time, making the "drainage" process faster and more efficient. Although the water wheel blades 9 need the driving force of the water flow when they start to rotate, when the water wheel blades 9 start to rotate, the required water flow driving force will be reduced, and at the same time, it will promote the flow of water flow, thereby achieving the effect of improving work efficiency, and can also play a certain role in regulating the water flow at the drain port 4, making the water flow more stable, reducing the impact force and volatility of the water flow, thereby reducing the scouring and damage to the downstream river and water conservancy facilities, and arranging a water wheel in the drain port 4 can make the water flow produce A certain vortex and disturbance can be created to prevent the sediment from settling in advance, and reduce the siltation and pollution of the downstream river channel by the sediment. Finally, by setting a layer of gabions 5 and a second layer of gabions 6, the large solid matter of the debris flow can be effectively intercepted. At the same time, a water wheel shaft 8 and a water wheel blade 9 are arranged in the spillway 4, which can promote the rapid passage of small objects such as water flow through the spillway 4, while reducing the impact force and volatility of the water flow, making the water flow more stable, reducing the scouring and damage to the downstream river channel and water conservancy facilities, and ensuring the working efficiency of the gap dam 1.

[0021] like Figure 6 , Figure 7 and Figure 8As shown, in the present invention, an auxiliary mechanism is also provided on the water wheel blade 9, and the auxiliary mechanism includes a sliding column 12, and the sliding column 12 penetrates and is slidably installed on the water wheel blade 9. The water wheel blade 9 is arc-shaped and concave, which is convenient for the aggregation of water flow and improves the driving force when the water flow contacts. A first concave disc 13 is fixedly installed on the top of the sliding column 12, and a second concave disc 14 is fixedly installed on the bottom of the sliding column 12. The concave design is convenient for the aggregation of water flow and improves the driving force of water flow. The radius of the first concave disc 13 is the radius of the second concave disc 14. 4, an arc rod 15 is fixedly installed on the outside of the sliding column 12, the curvature of the arc rod 15 is the same as the curvature of the inner surface of the water wheel blade 9, a notch 16 is opened on the side of the water wheel blade 9, a limit rod 17 is fixedly installed on the sliding column 12, the limit rod 17 is arranged on the outside of the water wheel blade 9, a stopper 18 is slidably installed on the notch 16, a connecting block 19 is fixedly installed on the outside of the stopper 18, and the connecting block 19 is fixedly installed on the top of the limit rod 17, and the limit rod 17 slides on the side outer wall of the water wheel blade 9.

[0022] In the above technical solution, when the water flow contacts the water wheel blade 9 at the lower part of the water wheel shaft 8, the water flow will gather at the concave part of the water wheel blade 9, thereby aggregating thrust. At the same time, part of the water flow will also gather at the first concave disc 13, thereby generating thrust on the concave surface of the first concave disc 13, so that the first concave disc 13 slides toward the concave surface of the water wheel blade 9. Figure 7In the process, the movement of the sliding column 12 will drive the limiting rod 17 to move downward, and the limiting rod 17 will drive the connecting block 19 to move downward, and the connecting block 19 drives the stopper 18 to move downward to close the notch 16, so that the notch 16 is closed. At this time, the water flow gathers on the concave surface of the water wheel blade 9 to generate thrust, and then drives the water wheel blade 9 to rotate counterclockwise with the water wheel shaft 8 as the center. After the rotation, the flow of water can be promoted, and at the same time, the impact force and volatility of the water flow are reduced, making the water flow more stable, reducing the scouring and damage to the downstream river and water conservancy facilities, and ensuring the gap The working efficiency of the dam 1 is improved, and when the water wheel blade 9 rotates to the upper part of the water wheel shaft 8, due to the action force and reaction force, in the upper part of the water wheel shaft 8, the second concave disc 14 pushes the water flow back due to the counterclockwise movement of the water wheel shaft 8. At this time, the water flow will generate a driving force on the second concave disc 14, and the second concave disc 14 will drive the sliding column 12 to move in the direction of the water wheel blade 9, and the sliding column 12 will drive the limiting rod 17 to move, and the limiting rod 17 will drive the connecting block 19 to move, and the connecting block 19 will drive the stopper 18 to move and open the notch 16. The opening of the notch 16 can allow the water flow and small particles on the concave surface of the water wheel blade 9 to leave the concave surface of the water wheel blade 9, The small particles deposited on the concave surface of the water wheel blade 9 due to the aggregation of water flow can be discharged, which is convenient for subsequent aggregation and pushing. The movement of the slide column 12 will also drive the No. 1 concave disc 13 to leave the concave surface of the water wheel blade 9 and move outward. The No. 1 concave disc 13 will also push out the small particles deposited on the concave surface of the water wheel blade 9. At the same time, the slide column 12 will also drive the arc rod 15 to move with it. The outward movement of the arc rod 15 can break up the small particles deposited on the concave surface of the water wheel blade 9, promote the discharge of small particles, and prevent them from being attached to the concave surface of the water wheel blade 9 for a long time due to the aggregation of water flow, thereby affecting the subsequent water flow aggregation effect. When the water wheel blade 9 rotates to the lower half of the water wheel shaft 8, it will enter In the cycle of entering aggregation and discharging, finally, by providing a No. 1 concave disc 13 and a No. 2 concave disc 14, a notch 16 and a limit rod 17, when the water flows through the water wheel blade 9 at the lower part of the water wheel shaft 8, the closing of the No. 1 concave disc 13 and the notch 16 can improve the aggregation force of the water flow, thereby improving the propulsion of the water flow, and facilitating faster starting and rotation of the water wheel blade 9. When the water flows through the upper part of the water wheel shaft 8, the No. 1 concave disc 13 is pushed out by the No. 2 concave disc 14, and the notch 16 is opened at the same time to facilitate the discharge of deposited small particles and other substances, so as to facilitate subsequent re-aggregation and prevent small particles from being deposited on the concave surface of the water wheel blade 9 for a long time and affecting the subsequent work efficiency.

[0023] In summary, by providing a first layer of gabions 5 and a second layer of gabions 6, large solid materials of debris flows can be effectively intercepted. At the same time, a water wheel shaft 8 and a water wheel blade 9 are provided in the drain port 4, which can promote small materials such as water flow to pass through the drain port 4 quickly, while reducing the impact force and volatility of the water flow, making the water flow more stable. By providing a No. 1 concave disc 13 and a No. 2 concave disc 14, when the water flows through the water wheel blade 9 at the lower part of the water wheel shaft 8, the No. 1 concave disc 13 and the slot 16 are closed, which can improve the aggregation force of the water flow, thereby improving the propulsion of the water flow, and at the same time, it has the effect of discharging small particles and other materials, preventing small particles from being deposited on the concave surface of the water wheel blade 9 for a long time and affecting the subsequent work efficiency.

[0024] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A system for constructing a gap dam, comprising a gap dam (1), characterized in that: Also includes: A drain port (4) is provided in the middle of a slit dam (1), an overflow port (3) is provided at the top of the slit dam (1), a layer of gabions (5) is fixedly installed outside the inlet of the drain port (4), a second layer of gabions (6) is fixedly installed inside the first layer of gabions (5), a gap that can be filled with stones is provided between the first layer of gabions (5) and the second layer of gabions (6), a partition (7) is fixedly installed inside the inlet of the drain port (4), the partition (7) extends outside the drain port (4) and is arranged close to the second layer of gabions (6), a water wheel shaft (8) is rotatably installed on the partition (7), and a water wheel blade (9) is fixedly installed outside the water wheel shaft (8).

2. A system for constructing a gap dam according to claim 1, characterized in that: The outermost ends of the top and bottom of the partition (7) are fixedly mounted with fixing frames (10), and the fixing frames (10) are fixedly mounted on the tops of the first-layer gabion (5) and the second-layer gabion (6).

3. A system for constructing a gap dam according to claim 2, characterized in that: A side bracket (11) is fixedly mounted on the top of the side of the partition (7), and the side bracket (11) is externally fixedly mounted on the top of the first-layer gabion (5) and the second-layer gabion (6).

4. A system for constructing a gap dam according to claim 3, characterized in that: The acute angle formed by the side bracket (11) and the partition (7) is set at sixty degrees.

5. A system for constructing a gap dam according to claim 4, characterized in that: The water wheel blade (9) is also provided with an auxiliary mechanism, the auxiliary mechanism comprising a sliding column (12), the sliding column (12) penetrates and is slidably mounted on the water wheel blade (9), and the water wheel blade (9) is in an arc-shaped inward concave shape.

6. A system for constructing a gap dam according to claim 5, characterized in that: A first concave disc (13) is fixedly mounted on the top of the sliding column (12), and a second concave disc (14) is fixedly mounted on the bottom of the sliding column (12).

7. A system for constructing a gap dam according to claim 6, characterized in that: The radius of the first concave circular disk (13) is twice that of the second concave circular disk (14).

8. A system for constructing a gap dam according to claim 7, characterized in that: An arc-shaped rod (15) is fixedly mounted on the outside of the sliding column (12), and the arc of the arc-shaped rod (15) is the same as the arc of the inner surface of the water wheel blade (9).

9. A system for constructing a gap dam according to claim 8, characterized in that: A notch (16) is provided on the side of the water wheel blade (9), a limit rod (17) is fixedly mounted on the slide column (12), and the limit rod (17) is arranged outside the water wheel blade (9).

10. A system for constructing a gap dam according to claim 9, characterized in that: A stopper (18) is slidably mounted on the notch (16), a connecting block (19) is fixedly mounted outside the stopper (18), the connecting block (19) is fixedly mounted on the top of a limiting rod (17), and the limiting rod (17) slides in contact with the side outer wall of the water wheel blade (9).

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