Turning riverway water flow energy dissipation and direction adjustment structure
By designing four-row decompression structures and steering embankments in the turning river channel, adjusting the flow direction and reducing the water flow energy, the problem of easy instability of the concave bank embankments in the turning river channel is solved, improving the safety of the embankments and increasing the landscape effect.
Patent Information
- Application Number
- CN202421348275.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-13
AI Technical Summary
The embankment near the concave banks of the curved river channel is prone to instability and damage. The existing reinforcement measures cannot effectively reduce the energy of the water flow and adjust the flow direction, resulting in insufficient safety of the embankment.
A turning river water flow energy dissipation direction adjustment structure including four rows of decompression structures is designed. Through the decompression pier and the semicircular annular decompression pool, a lateral and forward water outlet is formed. Combined with the steering embankment and the filling structure, the water flow direction is adjusted and the water flow energy is reduced.
Effectively reduce the energy of water flow, reduce the erosion of water flow on embankments and river channels, improve the flood safety of concave banks of curved river channels, and increase the landscape effect of artificial water flow.
Smart Images
Figure CN222685435U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a hydraulic structure, in particular to a water flow energy dissipation and direction adjustment structure for a turning river. Background Art
[0002] my country has many rivers, and dikes are an important part of the country's river flood control system. Once a dike fails, it will cause huge losses to people's lives and property. In addition to dangerous situations such as overtopping and seepage damage, dikes often suffer from dike foot hollowing and collapse near the concave bank downstream of the turning river. Therefore, the safety of dikes in turning rivers is extremely important.
[0003] The reinforcement of the embankment of the turning river is usually carried out by reinforcing the embankment foot or dredging the river. However, practice shows that simply reinforcing the embankment foot cannot reduce the energy of the river flow, and the accumulated scouring of the water flow still endangers the safety of the embankment; dredging the river cannot change the deep river brought by the new flood to turn back to the foot of the concave bank of the turning river, and the embankment near the concave bank of the turning river is still prone to instability and damage. Summary of the invention
[0004] The technical problem to be solved by the utility model is to provide a water flow energy dissipation and direction adjustment structure for a turning river channel, so as to reduce water flow energy, adjust water flow direction and improve flood discharge safety of concave bank embankments of the turning river channel.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0006] A water flow energy dissipation and direction adjustment structure for a curved river channel, comprising a first force dissipation structure, a second force dissipation structure, a third force dissipation structure and a fourth force dissipation structure, wherein the first force dissipation structure, the second force dissipation structure, the third force dissipation structure and the fourth force dissipation structure are arranged in a row from upstream to downstream;
[0007] The first force dissipation structure includes first force dissipation piers, which are arranged at intervals and form first water outlets;
[0008] The second force dissipation structure and the third force dissipation structure are both composed of a plurality of semicircular energy dissipation pools connected in series in sequence; and the semicircular energy dissipation pool of the second force dissipation structure and the semicircular energy dissipation pool of the third force dissipation structure are arranged in a staggered manner;
[0009] The fourth energy dissipation structure includes second energy dissipation piers, which are arranged at intervals to form a second water outlet, and an energy dissipation pool is formed between the second energy dissipation piers and the third energy dissipation structure.
[0010] The semicircular energy dissipation pool of the second energy dissipation structure is provided with first side piers on both sides of the upper end and a water diversion pier in the middle, and a lateral water outlet is formed between the first side pier and the water diversion pier.
[0011] The top elevation of the first side pier and the water diversion pier is 0.5m lower than the elevation of the first water outlet; the elevation of the lateral outlet is 0.1m lower than the elevation of the water diversion pier; the elevation of the bottom plate of the first energy dissipation pool of the semicircular energy dissipation pool is 1.0m lower than the elevation of the first water outlet.
[0012] Second side piers are arranged on both sides of the upper end of the semicircular energy dissipation pool of the third energy dissipation structure, and a forward water outlet is formed between adjacent second side piers.
[0013] The top elevation of the second side pier is 0.5m lower than that of the water diversion pier, the elevation of the positive outlet is 0.1m lower than that of the second side pier, and the elevation of the bottom plate of the second energy dissipation pool of the semicircular energy dissipation pool is 0.5m lower than that of the bottom plate of the first energy dissipation pool.
[0014] The bottom elevation of the energy dissipation pool is 0.5m lower than the bottom elevation of the third energy dissipation structure; the elevation of the second water outlet is 0.4m higher than the elevation of the energy dissipation pool; and the top elevation of the second energy dissipation pier is 0.5m higher than the elevation of the second water outlet.
[0015] A single-side turning dike is arranged on one side of the first force dissipation structure, the second force dissipation structure, the third force dissipation structure and the fourth force dissipation structure and located outside the turning river channel.
[0016] The single-sided turning dike starts from the bank of the second energy dissipation structure and ends at the downstream side of the fourth energy dissipation structure. The turning dike consists of an upstream arc section and a downstream arc section. The upstream arc section is located at the first outer circle of the semicircular energy dissipation pool of the second energy dissipation structure, and the downstream arc section is an arc-shaped column convex toward the riverbed passing through the first outer circle of the second energy dissipation structure and the second outer circle of the third energy dissipation structure.
[0017] A filling structure is provided between the second energy dissipation structure, the third energy dissipation structure and the turning dike, and the filling structure and the top surface of the semicircular energy dissipation pool on the second energy dissipation structure and the third energy dissipation structure close to the turning dike form a downwardly inclined slope.
[0018] The utility model provides a water flow energy dissipation and direction adjustment structure for a turning river channel, which has the following technical effects:
[0019] 1) The water flow energy dissipation and diversion structure is located between the embankment protection feet on both sides of the bend river on the upstream side. The four rows of energy dissipation structures of the water flow energy dissipation and diversion structure can effectively reduce the water flow energy and reduce the scouring of the downstream river channel and the embankment slope foot. By raising the water level in the energy dissipation pool of the second, third and fourth energy dissipation structures, the direct scouring and wear of the bottom plate of the structure itself by the water flow can be reduced.
[0020] 2) Through the elevation changes of the side walls of the energy dissipation pools in the second, third and fourth energy dissipation structures and the bank turning dikes, the water flow in the river channel is turned back to the channel, reducing the scouring of the water flow on the slope foot of the downstream dike at the turn.
[0021] 3) The second and third energy dissipation structures are staggered. Water flows out from the lateral outlet of the second energy dissipation structure first, and then from the forward outlet of the third energy dissipation structure, which can increase the artificial water flow landscape effect. Both the first and second energy dissipation piers can be stepped on by people, which is convenient for water-friendly experience.
[0022] 4) The first and fourth energy dissipation structures are energy dissipation piers, and the second and third energy dissipation structures are energy dissipation pools. The benefits are: the water level is raised by the energy dissipation pools of the second, third and fourth energy dissipation structures, and the water flows on the water cushion, which can reduce the direct scouring of the bottom plate by the water flow and reduce wear. The last row is equipped with energy dissipation piers because there are many and scattered water outlets, which is not easy to cause excessive scouring of the river behind the piers. If the last row is equipped with an energy dissipation pool structure, because there may not be a water cushion behind it, the water flow at the outlet of the energy dissipation pool is more concentrated, the energy is slightly larger, and it is easy to scour the river behind the pool. When it is scoured to a certain depth, the structure is easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0024] Figure 1 It is an overall schematic diagram of the utility model.
[0025] Figure 2 for Figure 1 A partial enlarged schematic diagram of the mid-water flow energy dissipation and redirection structure.
[0026] In the figure: embankment protection foot 1, horseway 2, upper embankment 3, embankment top traffic channel 4, upstream river channel 6, downstream river channel 5, water flow energy dissipation and direction adjustment structure 7, single-sided turning embankment 76, turning embankment downstream side step 77, first force dissipation structure 71, first force dissipation pier 711, first water outlet 712, second force dissipation structure 72, first side pier 721, water diversion pier 722, lateral water outlet 723, first energy dissipation pool bottom plate 724, first outer circle 725, third force dissipation structure 73, second side pier 731, forward water outlet 732, second energy dissipation pool bottom plate 733, second outer circle 734, fourth force dissipation structure 74, second force dissipation pier 741, second water outlet 742, energy dissipation pool 743, filling structure 75. DETAILED DESCRIPTION
[0027] like Figure 1-2 As shown, a water flow energy dissipation and direction adjustment structure for a curved river channel comprises embankment protection feet 1 on both sides, a bridleway 2, an upper embankment 3, a embankment top traffic road 4, an upstream river channel 6, a downstream river channel 5 and a water flow energy dissipation and direction adjustment structure 7. The water flow energy dissipation and direction adjustment structure 7 is located between the embankment protection feet 1 on both sides of the curved river channel near the upstream side.
[0028] The water flow energy dissipation and direction adjustment structure 7 includes a first force dissipation structure 71, a second force dissipation structure 72, a third force dissipation structure 73 and a fourth force dissipation structure 74. The first force dissipation structure 71, the second force dissipation structure 72, the third force dissipation structure 73 and the fourth force dissipation structure 74 are arranged in a row from upstream to downstream for dissipating water flow in the river. The water flow energy dissipation and direction adjustment structure 7 also includes a single-sided turning dike 76 and a filling structure 75 between the single-sided turning dike 76 and the second force dissipation structure 72 and the third force dissipation structure 73. The single-sided turning dike 76 is used to change the direction of water flow in the river.
[0029] like Figure 2 As shown, specifically, the first force dissipation structure 71 includes a first force dissipation pier 711 and a first water outlet 712 . The first force dissipation pier 711 is 1 m long, 0.5 m wide and 0.5 m high. The first water outlet 712 is 1 m long, 0.5 m wide and 0.5 m shorter than the first force dissipation pier 711 .
[0030] like Figure 2 As shown, the second energy dissipation structure 72 is composed of a plurality of semicircular energy dissipation pools connected in series in sequence. Each semicircular energy dissipation pool includes a first side pier 721, a water diversion pier 722, a lateral outlet 723 and a first energy dissipation pool bottom plate 724. The top elevation of the first side pier 721 and the water diversion pier 722 of the semicircular energy dissipation pool is 0.5m lower than the elevation of the first water outlet 712 of the first energy dissipation structure 71, the water diversion pier 722 is 0.5m wide, and the elevation of the lateral outlet 723 is 0.1m lower than the elevation of the water diversion pier 722. The elevation of the first energy dissipation pool bottom plate 724 is 1.0m lower than the elevation of the first water outlet 712 of the first energy dissipation structure 71. The semicircular energy dissipation pool near the turning dike 76 on the second energy dissipation structure 72 does not have a lateral outlet 723, and the semicircular energy dissipation pool near the turning dike 76 on the second energy dissipation structure 72 starts from the water diversion pier 722 of the semicircular energy dissipation pool, and the upper end of the pool body gradually rises to the elevation of the first energy dissipation pier 711 of the first energy dissipation structure 71.
[0031] like Figure 2 As shown, the third energy dissipation structure 73 is composed of a plurality of semicircular energy dissipation pools connected in series. Each semicircular energy dissipation pool of the third energy dissipation structure 73 comprises a second side pier 731 , a forward water outlet 732 and a second energy dissipation pool bottom plate 733 .
[0032] The top elevation of the second side pier 731 of the semicircular energy dissipation pool is 0.5m lower than the elevation of the water diversion pier 722 of the second energy dissipation structure 72, the elevation of the forward water outlet 732 is 0.1m lower than the elevation of the second side pier 731, and the elevation of the second energy dissipation pool bottom plate 733 is 0.5m lower than the elevation of the first energy dissipation pool bottom plate 724 of the second energy dissipation structure 72. The width of the forward water outlet 732 of the semicircular energy dissipation pool near the turning dike 76 on the third energy dissipation structure 73 is half the width of the forward water outlet of the semicircular energy dissipation pool on the riverbed, and the top elevation of the semicircular energy dissipation pool near the turning dike 76 on the third energy dissipation structure 73 gradually rises to the elevation of the water diversion pier 722 of the second energy dissipation structure 72.
[0033] like Figure 2 As shown, the fourth force dissipation structure 74 includes a second force dissipation pier 741, a second water outlet 742, and a stilling pool 743 between the fourth force dissipation structure 74 and the third force dissipation structure 73, and the bottom elevation of the stilling pool 743 is 0.5m lower than the bottom elevation of the third force dissipation structure 73. The second water outlet 742 is 1m long and 0.5m wide, and the elevation of the second water outlet 742 is 0.4m higher than the elevation of the stilling pool 743. The second force dissipation pier 741 is 1m long and 0.5m wide, and the top elevation of the second force dissipation pier 741 is 0.5m higher than the elevation of the second water outlet 742.
[0034] like Figure 2 As shown, the water flow energy dissipation and direction adjustment structure 7 also includes a turning dike 76. The turning dike 76 starts from the bank of the second energy dissipation structure 72 and ends at the downstream side of the fourth energy dissipation structure 74. It is composed of an upstream arc section and a downstream arc section. The upstream arc section is located at the first outer circle 725 of the semicircular energy dissipation pool of the second energy dissipation structure 72, and the downstream arc section is an arc column convex to the riverbed passing through the first outer circle 725 of the second energy dissipation structure 72 and the second outer circle 734 of the third energy dissipation structure 73.
[0035] like Figure 2 As shown, the water flow energy dissipation and direction adjustment structure 7 further includes a step 77 on the downstream side of the turning dike. The step 77 on the downstream side of the turning dike is used to connect the second energy dissipation pier 741 of the fourth energy dissipation structure 74 with the dike bridleway 2.
Claims
1. A water flow energy dissipation and direction adjustment structure for a turning river, characterized in that: It is arranged between the protection feet of the embankments on both sides of the bend river channel on the upstream side, and includes a first force dissipation structure (71), a second force dissipation structure (72), a third force dissipation structure (73) and a fourth force dissipation structure (74). The first force dissipation structure (71), the second force dissipation structure (72), the third force dissipation structure (73) and the fourth force dissipation structure (74) are arranged in a row from upstream to downstream; The first force dissipation structure (71) comprises first force dissipation piers (711), the first force dissipation piers (711) are arranged at intervals and form first water outlets (712); The second force dissipation structure (72) and the third force dissipation structure (73) are both composed of a plurality of semicircular energy dissipation pools connected in series in sequence; and the semicircular energy dissipation pool of the second force dissipation structure (72) and the semicircular energy dissipation pool of the third force dissipation structure (73) are arranged in a staggered manner; The fourth force dissipation structure (74) comprises second force dissipation piers (741), the second force dissipation piers (741) are arranged at intervals to form a second water outlet (742), and a force dissipation pool (743) is formed between the second force dissipation piers (741) and the third force dissipation structure (73).
2. The energy dissipation and direction adjustment structure for water flow in a curved river according to claim 1, characterized in that: The semicircular energy dissipation pool of the second energy dissipation structure (72) is provided with first side piers (721) on both sides of the upper end and a water diversion pier (722) in the middle, and a lateral water outlet (723) is formed between the first side pier (721) and the water diversion pier (722).
3. The energy dissipation and direction adjustment structure for water flow in a curved river according to claim 2, characterized in that: The top elevations of the first side pier (721) and the water diversion pier (722) are 0.5 m lower than the elevation of the first water outlet (712); the elevation of the lateral water outlet (723) is 0.1 m lower than the elevation of the water diversion pier (722); and the elevation of the first energy dissipation pool bottom plate (724) of the semicircular energy dissipation pool is 1.0 m lower than the elevation of the first water outlet (712).
4. The energy dissipation and direction adjustment structure for water flow in a curved river according to claim 3, characterized in that: Second side piers (731) are provided on both sides of the upper end of the semicircular energy dissipation pool of the third energy dissipation structure (73), and forward water outlets (732) are formed between adjacent second side piers (731).
5. The energy dissipation and direction adjustment structure for water flow in a curved river according to claim 4, characterized in that: The top elevation of the second side pier (731) is 0.5 m lower than the elevation of the water diversion pier (722), the elevation of the forward water outlet (732) is 0.1 m lower than the elevation of the second side pier (731), and the elevation of the second energy dissipation pool bottom plate (733) of the semicircular energy dissipation pool is 0.5 m lower than the elevation of the first energy dissipation pool bottom plate (724).
6. The energy dissipation and direction adjustment structure for water flow in a curved river according to claim 1, characterized in that: The bottom elevation of the energy dissipation pool (743) is 0.5 m lower than the bottom elevation of the third energy dissipation structure (73); the elevation of the second water outlet (742) is 0.4 m higher than the elevation of the energy dissipation pool (743); and the top elevation of the second energy dissipation pier (741) is 0.5 m higher than the elevation of the second water outlet (742).
7. The energy dissipation and direction adjustment structure for water flow in a curved river according to claim 1, characterized in that: A single-side turning dike (76) is provided on one side of the first force dissipation structure (71), the second force dissipation structure (72), the third force dissipation structure (73) and the fourth force dissipation structure (74) and is located outside the turning river channel.
8. The energy dissipation and direction adjustment structure for water flow in a curved river according to claim 7, characterized in that: The single-sided turning dike (76) starts from the bank of the second energy dissipation structure (72) and ends at the downstream side of the fourth energy dissipation structure (74). The turning dike (76) is composed of an upstream arc section and a downstream arc section. The upstream arc section is located at the first outer circle (725) of the semicircular ring energy dissipation pool of the second energy dissipation structure (72), and the downstream arc section is an arc column convex toward the riverbed passing through the first outer circle (725) of the second energy dissipation structure (72) and the second outer circle (734) of the third energy dissipation structure (73).
9. The energy dissipation and direction adjustment structure for water flow in a curved river according to claim 8, characterized in that: A filling structure (75) is provided between the second energy dissipation structure (72), the third energy dissipation structure (73) and the turning bank (76); the filling structure (75) and the top surface of the semicircular energy dissipation pool on the second energy dissipation structure (72) and the third energy dissipation structure (73) close to the turning bank (76) form a downwardly inclined slope.