CN114197299B - Pier with subregion vortex that disappears and scour protection assembled guard ring - Google Patents
Pier with subregion vortex that disappears and scour protection assembled guard ring Download PDFInfo
- Publication number
- CN114197299B CN114197299B CN202210016151.0A CN202210016151A CN114197299B CN 114197299 B CN114197299 B CN 114197299B CN 202210016151 A CN202210016151 A CN 202210016151A CN 114197299 B CN114197299 B CN 114197299B
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- vortex
- eliminating
- vortex eliminating
- groove body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 110
- 230000036961 partial effect Effects 0.000 claims abstract description 19
- 230000008030 elimination Effects 0.000 claims abstract description 18
- 238000003379 elimination reaction Methods 0.000 claims abstract description 18
- 230000003313 weakening effect Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 45
- 230000009467 reduction Effects 0.000 claims description 17
- 238000005192 partition Methods 0.000 abstract description 8
- 238000009991 scouring Methods 0.000 abstract description 7
- 230000002452 interceptive effect Effects 0.000 abstract description 4
- 230000002829 reductive effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001603 reducing effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
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- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000005406 washing Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention relates to a pier with partition vortex elimination and an anti-scouring assembled guard ring, which comprises the following components: the bridge pier is arranged in water; the pre-pier vortex eliminating groove body is arranged on the water facing side of the pier and is provided with a first cavity and a first opening, the first opening is used for enabling partial simulated vortex water flow formed by the lower submerged water flow to enter the first cavity, and the pre-pier vortex eliminating groove body is used for weakening the transverse axis vortex and the lower submerged water flow strength of the water facing side of the pier; the two pier-side vortex eliminating groove bodies are arranged on two opposite sides of the pier-front vortex eliminating groove body, the pier-side vortex eliminating groove bodies are communicated with the pier-front vortex eliminating groove body, and the pier-side vortex eliminating groove bodies are used for consuming and interfering partial pressure shrinkage flow direction of the pier parts; the post-pier vortex eliminating plate is arranged on the back water side of the pier, two ends of the post-pier vortex eliminating plate are respectively connected with the two pier-side vortex eliminating groove bodies, and the post-pier vortex eliminating plate is used for weakening the vertical axis vortex strength of the back water side of the pier.
Description
Technical Field
The invention relates to the technical field of local scour protection of bridge foundations, in particular to a bridge pier with partition vortex elimination and an anti-scour assembled guard ring.
Background
At present, after a bridge is built in a natural river, a nearby water flow structure of the natural river moves severely in three dimensions, and the natural river is mainly represented by a complex vortex structure, which is one of main reasons for local scouring of piers. The local flushing at the pier periphery is mainly caused by a plurality of simulated eddies formed by the underwater flow before the pier, and the downstream movement of the eddies at the pier side due to the pier front is jointly caused by the acceleration of the water flow caused by the lateral compression of the water flow and the falling wake vortex formed by the boundary separation at the pier side after the pier. The front and side of the pier can be seen to be mainly horizontal axis vortex, and the rear is mainly vertical axis vortex.
In the related art, the pier scouring protection mainly comprises an active protection and a passive protection, the passive protection is usually protected by adopting a riprap, and the riprap protection has stricter requirements on the grain diameter of the riprap, such as edge collapse and integral collapse caused by seepage and turbulent flow due to improper treatment, so that the later maintenance amount is larger. For active protection, a mode of folding and decelerating is often adopted, for example, foundation expansion, guard ring and slotting are mainly utilized to weaken the submerged flow strength before the pier so as to achieve the purpose of reducing local scouring.
However, the mechanism of erosion is different for different regions of the pier periphery, and the local erosion of the pier periphery is not reduced to the maximum extent.
Disclosure of Invention
The embodiment of the invention provides a pier with partitioned vortex elimination and an anti-scour assembled guard ring, which are used for solving the problem that local scour of the pier periphery cannot be maximally reduced in the related art.
In a first aspect, there is provided a pier having zoned vortex reduction, comprising: the bridge pier is arranged in water; the pre-pier vortex eliminating groove body is arranged on the water facing side of the pier, a first cavity is formed in the pre-pier vortex eliminating groove body, a first vortex eliminating hole is formed in the top of the pre-pier vortex eliminating groove body and communicated with the first cavity, a first opening is formed in the pre-pier vortex eliminating groove body, and the first opening is used for enabling partial pseudo-sequence vortex water flow formed by the underwater flow to enter the first cavity; the two pier-side vortex eliminating groove bodies are arranged on two opposite sides of the pier-side vortex eliminating groove body, the pier-side vortex eliminating groove body is connected with the pier-side vortex eliminating groove body, the pier-side vortex eliminating groove body is provided with a second cavity, the second cavity is communicated with the first cavity, the top of the pier-side vortex eliminating groove body is provided with a second vortex eliminating hole, and the second vortex eliminating hole is communicated with the second cavity; the post-pier vortex eliminating plate is arranged on the back water side of the pier, two ends of the post-pier vortex eliminating plate are respectively connected with two post-pier side vortex eliminating groove bodies, and the post-pier vortex eliminating plate is used for weakening vertical axis vortexes on the back water side of the pier.
In some embodiments, a second opening is formed in the top of the pier-side vortex reduction groove body, and the second opening is communicated with the second cavity.
In some embodiments, the first opening is disposed at a side of the pre-pier vortex reduction groove body away from the pier, and the first vortex reduction hole is disposed between the pier and the first opening; the second opening is arranged on one side, close to the pier, of the pier-side vortex eliminating groove body, and the second opening is positioned between the pier and the second vortex eliminating hole, wherein the distance between the first vortex eliminating hole and the pier is smaller than the distance between the second vortex eliminating hole and the pier.
In some embodiments, the pre-pier vortex reduction groove body comprises: the side, close to the bridge pier, of the first bottom plate is attached to the side wall of the bridge pier; the first sealing plates are arranged above the first bottom plate at intervals along the height direction of the bridge pier, one side, close to the bridge pier, of each first sealing plate is attached to the side wall of the bridge pier, and a plurality of first vortex eliminating holes are formed in the first sealing plates at intervals; at least two first curb plates, first curb plate with pier lateral wall laminating, first curb plate is connected first bottom plate with first shrouding, and two first curb plate is located respectively the edge of the opposite both sides of first shrouding, wherein, two first curb plate first bottom plate with first shrouding encloses into first cavity.
In some embodiments, the first bottom plate extends towards a direction away from the bridge pier, and is bent upwards to form a first baffle, and a first gap between the first baffle and the first sealing plate is the first opening.
In some embodiments, the pier-side vortex breaker body comprises: the side, close to the bridge pier, of the second bottom plate is attached to the side wall of the bridge pier, and the second bottom plate is connected with the pre-pier vortex eliminating groove body; the second sealing plates are arranged above the second bottom plate at intervals along the height direction of the bridge pier, and a plurality of second vortex eliminating holes are arranged at intervals on the second sealing plates; the second baffle is arranged between the second bottom plate and the second sealing plate, and is connected with one end, away from the pier, of the second sealing plate and one end, away from the pier, of the second bottom plate, wherein the second bottom plate, the second sealing plate and the second baffle enclose a second cavity.
In some embodiments, a second side plate is disposed on a side of the pier-side vortex-eliminating groove body away from the pier-front vortex-eliminating groove body, and the second side plate is connected with the second sealing plate and the second bottom plate, wherein a third opening is disposed between the second side plate and the pier, and the third opening is used for allowing water in the second cavity to flow downstream.
In some embodiments, the pier-side vortex-eliminating groove body is connected with the pre-pier vortex-eliminating groove body and the post-pier vortex-eliminating plate respectively through a connecting piece, and the pier-side vortex-eliminating groove body, the pre-pier vortex-eliminating groove body and the post-pier vortex-eliminating plate can move relatively.
In some embodiments, the post-pier vortex breaker comprises: the third bottom plate is connected with the pier-side vortex eliminating groove body, and one side, close to the pier, of the third bottom plate is attached to the side wall of the pier; the vortex eliminating plate is vertically fixed on the third bottom plate, and is connected with the pier, and a second gap is reserved between the vortex eliminating plate and the pier side vortex eliminating groove body.
In a second aspect, an anti-scour modular retainer is provided comprising: the pre-pier vortex eliminating groove body is used for being arranged on the water facing side of a pier, a first cavity is formed in the pre-pier vortex eliminating groove body, a first vortex eliminating hole is formed in the top of the pre-pier vortex eliminating groove body and communicated with the first cavity, a first opening is formed in the pre-pier vortex eliminating groove body, and the first opening is used for enabling partial pseudo-sequence vortex water flow formed by the underwater flow to enter the first cavity; the two pier-side vortex eliminating groove bodies are arranged on two opposite sides of the pier-side vortex eliminating groove body, the pier-side vortex eliminating groove body is connected with the pier-side vortex eliminating groove body, the pier-side vortex eliminating groove body is provided with a second cavity, the second cavity is communicated with the first cavity, the top of the pier-side vortex eliminating groove body is provided with a second vortex eliminating hole, and the second vortex eliminating hole is communicated with the second cavity; the post-pier vortex eliminating plate is used for being installed on the back water side of the bridge pier, two ends of the post-pier vortex eliminating plate are connected with two post-pier side vortex eliminating groove bodies respectively, and the post-pier vortex eliminating plate is used for weakening vertical axis vortexes on the back water side of the bridge pier.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a pier with partition vortex elimination and an anti-scour assembly type guard ring, wherein a pre-pier vortex elimination groove body is arranged on the water facing side around the pier, and can be used for partial sequencing vortex water flow formed by submerged water flow to enter, and is mainly used for weakening the submerged water flow strength and transverse axis vortex of the water facing side of the pier, so that the purpose of weakening the surrounding vortex strength of the pier and reducing scour is achieved; two sides of the pier-side vortex eliminating groove body are respectively provided with a pier-side vortex eliminating groove body, and the pier-side vortex eliminating groove body is used for consuming and interfering the partial pressure shrinkage flow direction of the pier; the back water side of the pier can be provided with a post-pier vortex eliminating plate, the post-pier vortex eliminating plate can inhibit water flow vortex shedding and cutting frequency of a post-pier vortex eliminating area from entering so as to weaken the vertical axis vortex strength of the back water side of the pier, and therefore the device can realize regional vortex eliminating on different areas of the pier and can maximally reduce local scouring of the periphery of the pier.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a first view angle of a pier with partition vortex reduction according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a second view angle of a pier with partition vortex reduction according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a pre-pier vortex reduction groove body according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a pier-side vortex-eliminating groove body according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a post-pier vortex-eliminating plate according to an embodiment of the present invention.
In the figure:
1. bridge piers; 2. a vortex eliminating groove body before the pier; 21. a first cavity; 22. a first vortex eliminating hole; 23. a first opening; 24. a first base plate; 25. a first sealing plate; 26. a first side plate; 27. a first baffle; 3. pier side vortex eliminating groove body; 31. a second cavity; 32. a second vortex eliminating hole; 33. a second opening; 34. a second base plate; 35. a second sealing plate; 36. a second baffle; 37. a second side plate; 4. vortex eliminating plate after pier; 41. a third base plate; 42. vortex eliminating plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a pier with partition vortex elimination and an anti-scour assembled guard ring, which can solve the problem that the partial scour of the pier periphery cannot be reduced to the maximum degree in the related art.
Referring to fig. 1 to fig. 4, a pier with zoned vortex reduction according to an embodiment of the present invention may include: the bridge pier 1, the bridge pier 1 can be arranged in water, in this embodiment, the bridge pier 1 can be of a cylindrical structure, the diameter of the bridge pier 1 can be D, the radius can be R, and in other embodiments, the bridge pier 1 can be of a square column structure; the pre-pier vortex eliminating groove body 2, the pre-pier vortex eliminating groove body 2 can be arranged on the water facing side of the pier 1, the pre-pier vortex eliminating groove body 2 can be provided with a first cavity 21, the top of the pre-pier vortex eliminating groove body 2 can be provided with a first vortex eliminating hole 22, in the embodiment, the radius of the first vortex eliminating hole 22 can be 0.1R, in other embodiments, the radius of the first vortex eliminating hole 22 can be of other sizes, the first vortex eliminating hole 22 can be communicated with the first cavity 21, the pre-pier vortex eliminating groove body 2 can be provided with a first opening 23, and the first opening 23 can be used for partial fitting vortex water flow formed by down-diving water flow to enter the first cavity 21; the two pier-side vortex-eliminating groove bodies 3, the two pier-side vortex-eliminating groove bodies 3 can be arranged on two opposite sides of the pier-front vortex-eliminating groove body 2, the two pier-side vortex-eliminating groove bodies 3 and the pier-front vortex-eliminating groove body 2 are all arranged along the circumferential direction of the pier 1, the two pier-side vortex-eliminating groove bodies 3 and the pier-front vortex-eliminating groove body 2 are attached to the side wall of the pier 1, the pier-side vortex-eliminating groove body 3 can be connected with the pier-front vortex-eliminating groove body 2, the pier-side vortex-eliminating groove body 3 can be provided with a second cavity 31, the second cavity 31 can be communicated with the first cavity 21, the top of the pier-side vortex-eliminating groove body 3 can be provided with a second vortex-eliminating hole 32, and the second vortex-eliminating hole 32 can be communicated with the second cavity 31; the post-pier vortex eliminating plate 4, the post-pier vortex eliminating plate 4 can be arranged on the back water side of the bridge pier 1, two ends of the post-pier vortex eliminating plate 4 can be respectively connected with the two post-pier vortex eliminating groove bodies 3, the post-pier vortex eliminating plate 4 can be connected with the bridge pier 1, and the post-pier vortex eliminating plate 4 can weaken vertical axis vortex on the back water side of the bridge pier 1; when the bridge foundation encounters water impact, the water flow can form lower submerged flow on the water facing side of the bridge pier 1, partial vortex water formed by the lower submerged flow can flow into the first cavity 21 through the first opening 23, partial water flow in the first cavity 21 can be extruded upwards through the first vortex eliminating holes 22 to form upwards flowing extrusion water flow, the upwards flowing extrusion water flow collides with the downwards flowing lower submerged flow, the strength of the lower submerged flow can be weakened, the lower submerged flow is the reason for generating vortex, the strength of the lower submerged flow is weakened, the transverse shaft vortex strength of the water facing side of the bridge pier 1 can be weakened, the purpose of weakening the vortex strength around the bridge pier to reduce flushing is achieved, meanwhile, another partial water flow in the first cavity 21 can flow into the second cavity 31 along with sand and stone, namely flows downwards, the partial water flow in the second cavity 31 can be extruded upwards through the second vortex eliminating holes 32 to form upwards flowing water flow, the upwards flowing extrusion water flow can consume and interfere with the action of partial compressed water flow on one side of the bridge pier, the edge of the bridge pier 1 can be effectively prevented, the vortex strength of the lower side of the bridge pier 1 can be weakened, the vortex strength can be reduced by the vortex board 1 is reduced, and the vortex strength can be reduced by the vortex board 1 to the side of the bridge, and the vortex is reduced, and the vortex strength can flow in the area of the bridge 1 is reduced.
Referring to fig. 1 and 2, in some embodiments, the top of the pier side vortex breaker body 3 may be provided with a second opening 33, the second opening 33 may be in communication with the second cavity 31, and the second opening 33 may facilitate water flow inside the second cavity 31 and outside the second cavity 31.
Referring to fig. 1 to 4, in some embodiments, the first opening 23 may be disposed on a side of the pre-pier vortex reduction groove body 2 away from the pier 1, and the first vortex reduction hole 22 may be disposed between the pier 1 and the first opening 23, in this embodiment, a vertical distance between the first vortex reduction hole 22 and an axis of the pier 1 is 1.5R, and in other embodiments, a vertical distance between the first vortex reduction hole 22 and an axis of the pier 1 may be other lengths; the second opening 33 may be disposed on one side of the pier-side vortex-eliminating groove body 3 near the pier 1, and the second opening 33 may be located between the pier 1 and the second vortex-eliminating hole 32, where the distance between the first vortex-eliminating hole 22 and the pier 1 is smaller than the distance between the second vortex-eliminating hole 32 and the pier 1, in this embodiment, the vertical distance between the second vortex-eliminating hole 32 and the axis of the pier 1 is 2.5R, in other embodiments, the vertical distance between the second vortex-eliminating hole 32 and the axis of the pier 1 may be other lengths, and the vortex-eliminating effect may be further increased.
Referring to fig. 3, in some embodiments, the pre-pier vortex breaker body 2 may include: the side of the first bottom plate 24, which is close to the bridge pier 1, can be attached to the side wall of the bridge pier 1, in this embodiment, the shape of the first bottom plate 24 is a sector plate, and in other embodiments, the shape of the first bottom plate 24 can be other shapes; the first sealing plates 25 may be disposed above the first bottom plate 24 at intervals along the height direction of the bridge pier 1, and one side of the first sealing plates 25 close to the bridge pier 1 may be attached to the side wall of the bridge pier 1, in this embodiment, the shape of the first sealing plates 25 may be fan-shaped, in other embodiments, the shape of the first sealing plates 25 may be other shapes same as that of the first bottom plate 24, the first sealing plates 25 may be provided with a plurality of first vortex-eliminating holes 22 at intervals, in this embodiment, the first sealing plates 25 may be provided with five first vortex-eliminating holes 22 at equal deflection angle intervals, the deflection angle may be 15 °, in other embodiments, the first sealing plates 25 may be provided with other numbers of first vortex-eliminating holes 22 at intervals; the first side plates 26 can be attached to the side wall of the bridge pier 1, the first side plates 26 can be connected with the first bottom plate 24 and the first sealing plate 25, and the two first side plates 26 can be located at the edges of two opposite sides of the first sealing plate 25 respectively, wherein the two first side plates 26, the first bottom plate 24 and the first sealing plate 25 can enclose a first cavity 21, in the embodiment, the thickness of the plate can be 0.05R, the vortex eliminating effect of the structure is good, the structure can be manufactured by adopting steel, plastic or other composite materials, the manufacturing cost is controllable, and the structure has higher economic benefit.
Referring to fig. 3, in some embodiments, the first bottom plate 24 may extend in a direction away from the bridge pier 1, and may be bent upward to form a first baffle plate 27, where a first gap between the first baffle plate 27 and the first sealing plate 25 is the first opening 23, and the above structure may make the first opening 23 face the flow direction of the submerged water flow, and the first baffle plate 27 may limit the flow direction of the water flow, so that more submerged water flow may flow into the first cavity 21, and the vortex reducing effect is increased.
Referring to fig. 1 and 4, in some embodiments, the pier-side vortex breaker body 3 may include: the side of the second bottom plate 34, which is close to the pier 1, can be attached to the side wall of the pier 1, in this embodiment, the shape of the second bottom plate 34 can be a sector, in other embodiments, the shape of the second bottom plate 34 can be other shapes, and the second bottom plate 34 can be connected with the vortex eliminating groove body 2 before the pier; the second sealing plates 35, the second sealing plates 35 may be arranged above the second bottom plate 34 at intervals along the height direction of the bridge pier 1, the second sealing plates 35 may be provided with a plurality of second vortex eliminating holes 32 at intervals, in this embodiment, the second sealing plates 35 may be provided with five second vortex eliminating holes at intervals with equal deflection angles, the deflection angles may be 15 °, and in other embodiments, the second sealing plates 35 may be provided with other numbers of second vortex eliminating holes 32 at intervals; the second baffle 36, the second baffle 36 may be disposed between the second bottom plate 34 and the second sealing plate 35, and the second baffle 36 may connect an end of the second sealing plate 35 away from the pier 1 with an end of the second bottom plate 34 away from the pier 1, where the second bottom plate 34, the second sealing plate 35 and the second baffle 36 may enclose a second cavity 31, and the above structure may play a role in consuming and interfering with a part of the compressed water flow direction of the pier 1 along one side of the longitudinal bridge.
Referring to fig. 4, in some embodiments, a second side plate 37 may be disposed on a side of the pier-side vortex-eliminating groove body 3 away from the pier-front vortex-eliminating groove body 2, the second side plate 37 may connect the second sealing plate 35 with the second bottom plate 34, the second side plate 37 may limit the flow direction of the water flow, the water flow flowing into the second cavity 31 from the first cavity 21 may be intercepted by the second side plate 37, so that as much of the water flow in the second cavity 31 as possible is extruded from the second vortex-eliminating hole 32 to form an upward extruded water flow, and the submerged water flow is further weakened, so that the lateral shaft vortex is further weakened, wherein a third opening is provided between the second side plate 37 and the pier 1, and the third opening may allow the water flow in the second cavity 31 to flow downstream.
Referring to fig. 1 and 2, in some embodiments, the pier-side vortex-eliminating groove body 3 may be connected to the pre-pier vortex-eliminating groove body 2 and the post-pier vortex-eliminating plate 4 by a connecting member, in this embodiment, the connecting member may be a bolt, in other embodiments, the connecting member may be a screw, a nut, or other parts, and the pier-side vortex-eliminating groove body 3, the pre-pier vortex-eliminating groove body 2, and the post-pier vortex-eliminating plate 4 may be relatively movable, in this embodiment, the hole diameter of the bolt hole is slightly larger than the diameter of the bolt, in other embodiments, other structures may be used to enable the pier-side vortex-eliminating groove body 3, the pre-pier vortex-eliminating groove body 2, and the post-pier vortex-eliminating plate 4 to relatively move, and when edge flushing occurs around the pier 1, the pier-side vortex-eliminating groove body 3, the pre-pier vortex-eliminating groove body 2, and the post-pier vortex-eliminating plate 4 may change in the terrain to further reduce flushing around the pier 1.
Referring to fig. 5, in some embodiments, post-pier vortex breaker 4 may comprise: the shape of the third bottom plate 41 may be a sector in the embodiment, in other embodiments, the third bottom plate 41 may be other shapes, the third bottom plate 41 may be connected with the pier-side vortex-eliminating groove body 3, and one side of the third bottom plate 41 close to the pier 1 may be attached to the side wall of the pier 1; the vortex eliminating plate 42, the vortex eliminating plate 42 can be vertically fixed on the third bottom plate 41, in this embodiment, the vortex eliminating plate 42 can be vertically fixed on the middle position of the third bottom plate 41, in other embodiments, the vortex eliminating plate 42 can be vertically fixed on other positions on the third bottom plate 41, the vortex eliminating plate 42 can be connected with the pier 1, a second gap can be formed between the vortex eliminating plate 42 and the pier side vortex eliminating groove body 3, water flow can flow through the second gap to carry sand and stone, sand and stone accumulation can be avoided, water flow in the second cavity 31 can flow to the vortex eliminating plate 42 through the second gap, when vertical vortex on the back water side of the pier 1 encounters the vortex eliminating plate 42, the vortex eliminating plate 42 can affect mutual cutting of alternate vortex, and further vortex generation and strength are affected, so that the vortex absorbing and rolling effect of the vortex on sediment after the pier back water side of the pier 1 can be reduced.
Referring to fig. 1 and 2, an anti-scour modular retainer according to an embodiment of the present invention may include: the pre-pier vortex eliminating groove body 2, the pre-pier vortex eliminating groove body 2 can be used for being installed on the water facing side of the bridge pier 1, the pre-pier vortex eliminating groove body 2 can be provided with a first cavity 21, the top of the pre-pier vortex eliminating groove body 2 can be provided with a first vortex eliminating hole 22, the first vortex eliminating hole 22 can be communicated with the first cavity 21, the pre-pier vortex eliminating groove body 2 can be provided with a first opening 23, the first opening 23 can be used for partial pseudo-sequence vortex water flow formed by the undersea water flow to enter the first cavity 21, and the pre-pier vortex eliminating groove body 2 can weaken the transverse axis vortex of the water facing side of the bridge pier 1; the two pier-side vortex-eliminating groove bodies 3, the two pier-side vortex-eliminating groove bodies 3 can be arranged on two opposite sides of the pier-front vortex-eliminating groove body 2, the two pier-side vortex-eliminating groove bodies 3 and the pier-front vortex-eliminating groove body 2 are arranged along the circumferential direction of the bridge pier 1, the two pier-side vortex-eliminating groove bodies 3 and the pier-front vortex-eliminating groove body 2 are attached to the side wall of the bridge pier 1, the pier-side vortex-eliminating groove body 3 can be connected with the pier-front vortex-eliminating groove body 2, the pier-side vortex-eliminating groove body 3 can be provided with a second cavity 31, the second cavity 31 can be communicated with the first cavity 21, the top of the pier-side vortex-eliminating groove body 3 can be provided with a second vortex-eliminating hole 32, the second vortex-eliminating hole 32 can be communicated with the second cavity 31, and the pier-side vortex-eliminating groove body 3 can consume and interfere with the flow direction of partial compressed water flow on one side of the bridge pier 1 along the longitudinal bridge direction; the post-pier vortex elimination plate 4, the post-pier vortex elimination plate 4 can be used for being installed on the back water side of the pier 1, two ends of the post-pier vortex elimination plate 4 can be connected with the two post-pier side vortex elimination groove bodies 3 respectively, the post-pier vortex elimination plate 4 can be connected with the pier 1, the post-pier vortex elimination plate 4 can weaken vertical axis vortexes of the back water side of the pier 1, and therefore the anti-scouring assembled retainer can conduct regional vortex elimination on different areas of the pier 1, and local scouring of the periphery of the pier can be reduced to the greatest extent.
In some embodiments, the anti-scour assembled retainer may be disposed at or slightly below a general scour line, where the general scour line position is determined according to a calculation formula of a general scour depth hp and a section envelope at the bridge site of the river reach, where the calculation formula of the general scour depth hp is as follows:
wherein:b is the width of the bridge pier 1, H is the water depth, Q is the flow of water flow, L is the width of the designed section under the bridge, H 1 Designing the maximum water depth of the section under the bridge, h a The average water depth on the designed section below the bridge is calculated, d is the average particle diameter of sediment, the unit is mm, E is a parameter, when the average value rho of the maximum sand content of the flood observation period (3 months) is less than 1.0 (the unit is kg/m < 3 >, the same applies below), 0.46 is taken, when rho is between 1.0 and 10.0, 0.66 is taken, and when rho is greater than 10.0, 0.86 is taken.
The bridge pier with partition vortex elimination and anti-scour assembly type guard ring provided by the embodiment of the invention has the principle that:
because the pier 1 can be arranged in water, the pre-pier vortex eliminating groove body 2 can be arranged on the water facing side of the pier 1, the pre-pier vortex eliminating groove body 2 can be provided with a first cavity 21, the top of the pre-pier vortex eliminating groove body 2 can be provided with a first vortex eliminating hole 22, the first vortex eliminating hole 22 can be communicated with the first cavity 21, the pre-pier vortex eliminating groove body 2 can be provided with a first opening 23, the first opening 23 can allow partial pseudo-sequence vortex water flow formed by the undersea water flow to enter the first cavity 21, and the pre-pier vortex eliminating groove body 2 can weaken the transverse axis vortex of the water facing side of the pier 1; the two pier-side vortex-eliminating groove bodies 3 can be arranged on two opposite sides of the pier-front vortex-eliminating groove body 2, the pier-side vortex-eliminating groove body 3 can be connected with the pier-front vortex-eliminating groove body 2, the pier-side vortex-eliminating groove body 3 can be provided with a second cavity 31, the second cavity 31 can be communicated with the first cavity 21, the top of the pier-side vortex-eliminating groove body 3 can be provided with a second vortex-eliminating hole 32, and the second vortex-eliminating hole 32 can be communicated with the second cavity 31; the back water side of the bridge pier 1 can be provided with a post-pier vortex eliminating plate 4, two ends of the post-pier vortex eliminating plate 4 can be respectively connected with the two post-pier vortex eliminating groove bodies 3, the post-pier vortex eliminating plate 4 can weaken vertical axis vortex of the back water side of the bridge pier 1, when a bridge foundation encounters water impact, water flow can form lower submerged flow on the water facing side of the bridge pier 1, partial simulated sequence vortex water flow formed by the lower submerged flow can flow into the first cavity 21 through the first opening 23, a part of water flow in the first cavity 21 can be extruded upwards through the first vortex eliminating hole 22 to form upward flowing extrusion water flow, the upward flowing extrusion water flow collides with the downward flowing lower submerged flow mutually, the strength of the lower submerged flow is weakened, the transverse axis vortex strength of the water facing side of the bridge pier 1 can be weakened, the other part of water flow in the first cavity 21 can carry sand and stone along flowing into the second cavity 31, part of water flow in the second cavity 31 can be extruded upwards through the second vortex eliminating holes 32 to form upward flowing water flow, the upward flowing water flow can play a role in consuming and interfering with the flow direction of part of compressed water flow on one side of the bridge pier 1 along the longitudinal bridge, the edge of the bridge pier 1 can be effectively prevented from being washed by water flow, the other part of water flow in the second cavity 31 and the compressed water flow on one side of the bridge pier 1 along the longitudinal bridge can flow downstream or carry sand and stone flow downstream, the water flow flows to the area where the vortex eliminating plate 4 behind the bridge pier is located, the vortex eliminating plate 4 behind the bridge pier can weaken vertical axis vortex on the back water side of the bridge pier 1, therefore, the device can partition vortex eliminating areas of different areas of the bridge pier 1 and maximally reduce the local washing around the bridge pier.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present invention, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. Pier with subregion vortex that disappears, its characterized in that includes:
a bridge pier (1) which is provided in water;
the pre-pier vortex eliminating groove body (2) is arranged on the water facing side of the bridge pier (1), the pre-pier vortex eliminating groove body (2) is provided with a first cavity (21), the top of the pre-pier vortex eliminating groove body (2) is provided with a first vortex eliminating hole (22), the first vortex eliminating hole (22) is communicated with the first cavity (21), the pre-pier vortex eliminating groove body (2) is provided with a first opening (23), and the first opening (23) is used for enabling partial pseudo-sequence vortex water flow formed by the undersea water flow to enter the first cavity (21);
the two pier-side vortex eliminating groove bodies (3), the two pier-side vortex eliminating groove bodies (3) are arranged on two opposite sides of the pier-front vortex eliminating groove body (2), the pier-side vortex eliminating groove bodies (3) are connected with the pier-front vortex eliminating groove body (2), the pier-side vortex eliminating groove bodies (3) are provided with second cavities (31), the second cavities (31) are communicated with the first cavities (21), second vortex eliminating holes (32) are formed in the tops of the pier-side vortex eliminating groove bodies (3), and the second vortex eliminating holes (32) are communicated with the second cavities (31);
the post-pier vortex eliminating plate (4) is arranged on the back water side of the bridge pier (1), two ends of the post-pier vortex eliminating plate (4) are respectively connected with the two post-pier vortex eliminating groove bodies (3), and the post-pier vortex eliminating plate (4) is used for weakening vertical axis vortexes on the back water side of the bridge pier (1);
a second opening (33) is formed in the top of the pier-side vortex eliminating groove body (3), and the second opening (33) is communicated with the second cavity;
the post-pier vortex eliminating plate (4) comprises:
a third bottom plate (41) connected with the pier-side vortex-eliminating groove body (3), wherein one side of the third bottom plate (41) close to the pier (1) is attached to the side wall of the pier (1);
the vortex eliminating plate (42) is vertically fixed on the third bottom plate (41), the vortex eliminating plate (42) is connected with the pier (1), and a second gap is reserved between the vortex eliminating plate (42) and the pier side vortex eliminating groove body (3).
2. The pier with zoned vortex elimination of claim 1, wherein:
the first opening (23) is arranged on one side, far away from the bridge pier (1), of the pre-pier vortex eliminating groove body (2), and the first vortex eliminating hole (22) is arranged between the bridge pier (1) and the first opening (23);
the second opening (33) is arranged on one side of the pier-side vortex eliminating groove body (3) close to the pier (1), the second opening (33) is positioned between the pier (1) and the second vortex eliminating hole (32),
wherein, the distance between the first vortex eliminating hole (22) and the pier (1) is smaller than the distance between the second vortex eliminating hole (32) and the pier (1).
3. Pier with zoned vortex reduction according to claim 2, characterized in that the pre-pier vortex reduction channel body (2) comprises:
a first bottom plate (24), one side of which is close to the bridge pier (1) is attached to the side wall of the bridge pier (1);
the first sealing plates (25) are arranged above the first bottom plate (24) at intervals along the height direction of the bridge pier (1), one side, close to the bridge pier (1), of each first sealing plate (25) is attached to the side wall of the bridge pier (1), and a plurality of first vortex eliminating holes (22) are formed in the first sealing plates (25) at intervals;
at least two first side plates (26), wherein the first side plates (26) are attached to the side walls of the bridge pier (1), the first side plates (26) are connected with the first bottom plate (24) and the first sealing plate (25), the two first side plates (26) are respectively positioned at the edges of two opposite sides of the first sealing plate (25),
the two first side plates (26), the first bottom plate (24) and the first sealing plate (25) enclose the first cavity (21).
4. The pier with zoned vortex elimination of claim 3, wherein:
the first bottom plate (24) extends towards the direction away from the bridge pier (1) and is bent upwards to form a first baffle (27), and a first gap between the first baffle (27) and the first sealing plate (25) is the first opening (23).
5. Pier with zoned vortex reduction according to claim 1, characterized in that the pier-side vortex reduction channel body (3) comprises:
the second bottom plate (34) is attached to the side wall of the bridge pier (1) at one side close to the bridge pier (1), and the second bottom plate (34) is connected with the pre-pier vortex eliminating groove body (2);
the second sealing plates (35) are arranged above the second bottom plate (34) at intervals along the height direction of the bridge pier (1), and a plurality of second vortex eliminating holes (32) are formed in the second sealing plates (35) at intervals;
a second baffle (36) arranged between the second bottom plate (34) and the second sealing plate (35), wherein the second baffle (36) connects one end of the second sealing plate (35) far away from the bridge pier (1) with one end of the second bottom plate (34) far away from the bridge pier (1),
wherein the second bottom plate (34), the second sealing plate (35) and the second baffle (36) enclose the second cavity (31).
6. The pier with zoned vortex elimination of claim 5, wherein:
a second side plate (37) is arranged on one side of the pier-side vortex eliminating groove body (3) away from the pier-front vortex eliminating groove body (2), the second side plate (37) is connected with the second sealing plate (35) and the second bottom plate (34),
wherein a third opening is arranged between the second side plate (37) and the bridge pier (1), and the third opening is used for enabling water flow in the second cavity (31) to flow downwards.
7. The pier with zoned vortex elimination of claim 1, wherein:
the pier side vortex eliminating groove body (3) is respectively connected with the pier front vortex eliminating groove body (2) and the pier rear vortex eliminating plate (4) through connecting pieces, and the pier side vortex eliminating groove body (3) the pier front vortex eliminating groove body (2) and the pier rear vortex eliminating plate (4) can move relatively.
8. An anti-scour modular retainer, comprising:
the pre-pier vortex eliminating groove body (2) is used for being installed on the water facing side of the bridge pier (1), the pre-pier vortex eliminating groove body (2) is provided with a first cavity (21), the top of the pre-pier vortex eliminating groove body (2) is provided with a first vortex eliminating hole (22), the first vortex eliminating hole (22) is communicated with the first cavity (21), the pre-pier vortex eliminating groove body (2) is provided with a first opening (23), and the first opening (23) is used for enabling partial pseudo-sequence vortex water flow formed by the underwater flow to enter the first cavity (21);
the two pier-side vortex eliminating groove bodies (3), the two pier-side vortex eliminating groove bodies (3) are arranged on two opposite sides of the pier-front vortex eliminating groove body (2), the pier-side vortex eliminating groove bodies (3) are connected with the pier-front vortex eliminating groove body (2), the pier-side vortex eliminating groove bodies (3) are provided with second cavities (31), the second cavities (31) are communicated with the first cavities (21), second vortex eliminating holes (32) are formed in the tops of the pier-side vortex eliminating groove bodies (3), and the second vortex eliminating holes (32) are communicated with the second cavities (31);
the post-pier vortex eliminating plate (4) is used for being installed on the back water side of the bridge pier (1), two ends of the post-pier vortex eliminating plate (4) are respectively connected with the two post-pier vortex eliminating groove bodies (3), and the post-pier vortex eliminating plate (4) is used for weakening vertical axis vortex of the back water side of the bridge pier (1);
a second opening (33) is formed in the top of the pier-side vortex eliminating groove body (3), and the second opening (33) is communicated with the second cavity;
the post-pier vortex eliminating plate (4) comprises:
a third bottom plate (41) connected with the pier-side vortex-eliminating groove body (3), wherein one side of the third bottom plate (41) close to the pier (1) is attached to the side wall of the pier (1);
the vortex eliminating plate (42) is vertically fixed on the third bottom plate (41), the vortex eliminating plate (42) is connected with the pier (1), and a second gap is reserved between the vortex eliminating plate (42) and the pier side vortex eliminating groove body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210016151.0A CN114197299B (en) | 2022-01-07 | 2022-01-07 | Pier with subregion vortex that disappears and scour protection assembled guard ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210016151.0A CN114197299B (en) | 2022-01-07 | 2022-01-07 | Pier with subregion vortex that disappears and scour protection assembled guard ring |
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| Publication Number | Publication Date |
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| CN114197299A CN114197299A (en) | 2022-03-18 |
| CN114197299B true CN114197299B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210016151.0A Active CN114197299B (en) | 2022-01-07 | 2022-01-07 | Pier with subregion vortex that disappears and scour protection assembled guard ring |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114635391B (en) * | 2022-03-29 | 2024-02-20 | 长沙理工大学 | Pier protector and pier protection system |
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| CN112482424A (en) * | 2020-11-10 | 2021-03-12 | 中铁大桥勘测设计院集团有限公司 | Assembled pier foundation |
| CN213358300U (en) * | 2020-05-19 | 2021-06-04 | 浙江水利水电学院 | Dismantlement formula pier scour prevention elastic separation plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8348553B2 (en) * | 2010-06-01 | 2013-01-08 | Applied University Research, Inc. | Bridge pier and abutment scour preventing apparatus with vortex generators |
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| KR100743478B1 (en) * | 2006-12-08 | 2007-07-30 | 동남이엔씨(주) | Structure for preventing scouring of river |
| WO2009113817A2 (en) * | 2008-03-14 | 2009-09-17 | Jo Deok-Rae | Scour preventive apparatus for pier foundation |
| CN101970760A (en) * | 2008-03-14 | 2011-02-09 | 赵德来 | Scour preventive apparatus for pier foundation |
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| CN114197299A (en) | 2022-03-18 |
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