A kind of pier scouring area assembled protection module structure

Abstract

The utility model belongs to bridge pier scour protection technical field especially, it is a kind of bridge pier scour area assembled protection module structure, including protection module main part, the outside of protection module main part is provided with splicing fixed component, bottom is provided with anti-impact reinforcement component, inside is provided with positioning adaptation component;Splicing fixed component is detachably connected with protection module main part, and protection module main part realizes quick assembly by splicing fixed component;Splicing lug and the splicing groove adaptation of concrete base plate, cooperation fixed bolt can be adjacent module firm connection, need not field pouring;Waterproof adhesive tape fills splicing gap, prevents water seepage;Positioning scale is convenient for accurate alignment module during construction, reduces splicing error.Compared with traditional cast-in-place or riprap protection, the structure can be prefabricated in factory, only needs to splice installation on site, greatly shortens construction period, reduces the influence of water flow, terrain on construction, adapts complex construction environment such as deep water, torrent.

Description

Technical Field

[0001] This utility model relates to the field of bridge pier scour protection technology, and in particular to a prefabricated protection module structure for bridge pier scour zones. Background Technology

[0002] As a critical load-bearing structure of a bridge, the stability of the surrounding riverbed directly determines the bridge's safety. Long-term scouring of the pier base and surrounding riverbed by water flow can easily lead to riverbed erosion, sediment loss, and the formation of scour pits. This can expose the pier foundation, reduce its load-bearing capacity, and in severe cases, cause pier tilting or even bridge collapse. Traditional riverbed scour prevention measures have many shortcomings and cannot meet the needs of long-term, efficient protection. Therefore, there is an urgent need to design a specialized prefabricated protective module structure for the pier scour zone. The scour zone of a bridge pier is the riverbed downstream of the pier's upstream side. Next to the pier, the eddy current shears the riverbed, carrying away soil – this is the so-called scour. Traditional protection methods often employ riprap protection, sludge removal, or cast-in-place concrete protection. Riprap protection requires manual or mechanical throwing of stones into the scour zone; the stones are of uneven size and lack a fixed splicing structure, making them easily dispersed by the water flow, and the protection area is difficult to control precisely. Traditional protection structures also have poor fit with the riverbed and pier: gaps exist between the riprap and the riverbed, allowing water to easily seep in and continue scouring the underlying sediment. Cast-in-place concrete lacks a flexible adaptable structure to the pier's outer wall; temperature changes or slight pier displacement can easily cause cracks, allowing water to scour the inner riverbed through these cracks. Therefore, we propose a prefabricated modular protection structure for the pier scour zone. Utility Model Content

[0003] The purpose of this utility model is to provide a prefabricated protective module structure for the scour zone of bridge piers, which solves the existing problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A prefabricated protective module structure for bridge pier scour zones includes a main body of the protective module. The outer side of the main body of the protective module is provided with a splicing and fixing component, the bottom is provided with an anti-scour reinforcement component, and the inner side is provided with a positioning and fitting component. The splicing and fixing component is detachably connected to the main body of the protective module, the anti-scour reinforcement component is fixedly connected to the main body of the protective module, and the positioning and fitting component is integrally formed with the main body of the protective module, so as to achieve scour protection of the riverbed around the bridge pier.

[0005] Preferably, the main body of the protective module includes a concrete substrate, an impact-resistant and wear-resistant layer, and drainage holes. The impact-resistant and wear-resistant layer is fixedly attached to the top of the concrete substrate. The drainage holes are evenly distributed on the concrete substrate and the impact-resistant and wear-resistant layer, extending to the bottom of the concrete substrate. The edges of the concrete substrate are provided with splicing grooves.

[0006] Preferably, the splicing and fixing assembly includes a splicing protrusion, a fixing bolt, and a waterproof adhesive strip. The splicing protrusion is adapted to the splicing groove and is fixedly installed on the edge of the adjacent concrete substrate. The fixing bolt passes through the splicing protrusion and the concrete substrate. The waterproof adhesive strip is attached to the inner side of the splicing groove. An anti-corrosion gasket is sleeved on the outer side of the fixing bolt.

[0007] Preferably, the impact-resistant reinforcement component includes anchor piles, reinforcing ribs, and anti-slip protrusions. The anchor piles are fixedly installed at the four bottom corners of the concrete substrate and extend vertically downwards. The reinforcing ribs are embedded inside the concrete substrate and extend to the splicing groove at both ends. The anti-slip protrusions are evenly distributed at the bottom of the concrete substrate and located between the anchor piles.

[0008] Preferably, the positioning adapter component includes a bridge pier adaptable arc surface, a buffer pad layer, and positioning scale. The bridge pier adaptable arc surface is formed on the inner edge of the concrete substrate and adapts to the curvature of the outer wall of the bridge pier. The buffer pad layer is fixedly attached to the inner side of the bridge pier adaptable arc surface. The positioning scale is marked on the top edge of the concrete substrate, near the splicing groove.

[0009] Preferably, the impact-resistant and wear-resistant layer is made of silicon carbide composite material, and a steel mesh is embedded inside the concrete substrate. The steel mesh is cross-connected with the reinforcing ribs, and a filter grid is provided inside the drainage hole.

[0010] Preferably, the top of the splicing protrusion is provided with a bolt hole, the fixing bolt is threaded into the bolt hole, the waterproof strip is made of aging-resistant rubber, and the anti-corrosion gasket is made of galvanized metal.

[0011] Preferably, the bottom of the anchor pile is provided with a spike, which is integrally formed with the anchor pile, and the outer side of the reinforcing rib is wrapped with an anti-corrosion coating, which is tightly adhered to the concrete substrate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a prefabricated protective module structure for bridge pier scour zones. The main body of the protective module is quickly assembled through splicing and fixing components: the splicing protrusions are adapted to the splicing grooves of the concrete substrate, and the adjacent modules can be firmly connected with fixing bolts, eliminating the need for on-site pouring; waterproof strips fill the splicing gaps to prevent water seepage; positioning scales facilitate precise alignment of modules during construction, reducing splicing errors. Compared with traditional cast-in-place or riprap protection, this structure can be prefabricated in the factory, requiring only splicing and installation on site, significantly shortening the construction cycle, reducing the impact of water flow and terrain on construction, and adapting to complex construction environments such as deep water and rapid currents. After splicing, the two devices can form a 45-degree angle, which can divert water flow and prevent water from scouring the bridge pier. Multiple buffer drainage holes are opened above the device to prevent displacement and damage to the device due to excessive water pressure. This utility model discloses a prefabricated protective module structure for bridge pier scour zones. The anchor piles of the scour-resistant reinforcement component have spikes at their bottom, allowing them to penetrate deep into the riverbed silt layer, enhancing the module's fixation to the riverbed and preventing it from being pushed away by the water flow. Reinforcing ribs and steel mesh inside the concrete substrate are cross-connected, increasing the overall strength of the module and preventing cracking due to water flow impact. Anti-slip protrusions at the bottom increase friction with the riverbed, further enhancing stability. The top scour-resistant and wear-resistant silicon carbide composite material can withstand long-term water scour and silt abrasion, extending the protection life. The synergistic effect of these multiple reinforcement structures significantly improves protective stability and effectively prevents riverbed erosion. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of a prefabricated protective module structure for the scour zone of a bridge pier proposed in this utility model. Figure 2 This is a partial three-dimensional structural diagram of a prefabricated protective module structure for the scour zone of a bridge pier proposed in this utility model. Figure 3 This is a partial three-dimensional structural diagram of the main body of the protective module proposed in this utility model; Figure 4 This is a partial three-dimensional structural diagram of the impact-resistant reinforcement component proposed in this utility model.

[0015] In the diagram: 1. Main body of the protective module; 11. Concrete substrate; 12. Impact-resistant and wear-resistant layer; 13. Drainage hole; 14. Splicing groove; 15. Steel mesh; 16. Filter grid; 2. Splicing and fixing components; 21. Splicing protrusion; 22. Fixing bolt; 23. Waterproof strip; 24. Anti-corrosion gasket; 25. Bolt hole; 3. Impact-resistant reinforcement components; 31. Anchor pile; 32. Reinforcing rib; 33. Anti-slip protrusion; 34. Spike; 35. Anti-corrosion coating; 4. Positioning and fitting components; 41. Pier fitting curved surface; 42. Buffer pad; 43. Positioning scale; 5. Pier main body. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] refer to Figure 1-4 A prefabricated protective module structure for bridge pier scour zones includes a protective module body 1. The outer side of the protective module body 1 is provided with a splicing and fixing component 2, the bottom with an anti-scour reinforcement component 3, and the inner side with a positioning and fitting component 4. The splicing and fixing component 2 is detachably connected to the protective module body 1, the anti-scour reinforcement component 3 is fixedly connected to the protective module body 1, and the positioning and fitting component 4 is integrally formed with the protective module body 1, working together to achieve scour protection of the riverbed surrounding the bridge pier. The protective module body 1 can be quickly assembled through the splicing and fixing component 2: the splicing protrusion 21 fits into the splicing groove 14 of the concrete substrate 11, and with the help of fixing bolts 22, adjacent modules can be firmly connected without on-site pouring; waterproof strips 23 fill the splicing gaps to prevent water seepage; and positioning scales 43 facilitate precise alignment of the modules during construction, reducing splicing errors. Compared to traditional cast-in-place or riprap protection, this structure can be prefabricated in a factory and only requires splicing and installation on site, significantly shortening the construction cycle and reducing the impact of water flow and terrain on construction. It is suitable for complex construction environments such as deep water and rapid currents. In this embodiment, the main body 1 of the protection module includes a concrete substrate 11, an impact-resistant and wear-resistant layer 12, and drainage holes 13. The impact-resistant and wear-resistant layer 12 is fixedly attached to the top of the concrete substrate 11. The drainage holes 13 are evenly opened on the concrete substrate 11 and the impact-resistant and wear-resistant layer 12, penetrating to the bottom of the concrete substrate 11. The edge of the concrete substrate 11 is provided with a splicing groove 14. After splicing, the two devices can form a 45-degree angle, which can divert the water flow and prevent the water flow from scouring the bridge pier. Multiple buffer drainage holes are opened above the device to prevent the device from being displaced and damaged due to excessive water pressure.

[0018] In this embodiment, the splicing and fixing component 2 includes a splicing protrusion 21, a fixing bolt 22, and a waterproof adhesive strip 23. The splicing protrusion 21 is adapted to the splicing groove 14 and is fixedly installed on the edge of the adjacent concrete substrate 11. The fixing bolt 22 passes through the splicing protrusion 21 and the concrete substrate 11. The waterproof adhesive strip 23 is attached to the inner side of the splicing groove 14. An anti-corrosion gasket 24 is sleeved on the outer side of the fixing bolt 22. The anchor pile 31 of the erosion-resistant reinforcement component 3 has a spike 34 at the bottom, which can penetrate into the riverbed silt layer to enhance the fixing force between the module and the riverbed and prevent the module from being pushed away by the water flow. The reinforcing ribs 32 inside the concrete substrate 11 are cross-connected with the steel mesh 15 to improve the overall strength of the module and avoid cracking caused by water flow impact. The anti-slip protrusions 33 at the bottom increase the friction with the riverbed and further enhance the stability. The erosion-resistant and wear-resistant layer 12 at the top is made of silicon carbide composite material, which can resist long-term water flow erosion and silt wear and extend the protection life. The synergistic effect of multiple reinforcement structures significantly improves the protection stability and effectively prevents riverbed erosion. In this embodiment, the erosion-resistant reinforcement component 3 includes anchor piles 31, reinforcing ribs 32, and anti-slip protrusions 33. The anchor piles 31 are fixedly installed at the four bottom corners of the concrete substrate 11 and extend vertically downward. The reinforcing ribs 32 are embedded inside the concrete substrate 11 and extend to the splicing groove 14 at both ends. The anti-slip protrusions 33 are evenly distributed at the bottom of the concrete substrate 11 and are located between the anchor piles 31.

[0019] In this embodiment, the positioning adapter component 4 includes a pier-adapting curved surface 41, a buffer pad 42, and positioning scale 43. The pier-adapting curved surface 41 is formed on the inner edge of the concrete substrate 11 and matches the curvature of the outer wall of the pier. The buffer pad 42 is fixedly attached to the inner side of the pier-adapting curved surface 41. The positioning scale 43 is engraved on the top edge of the concrete substrate 11, near the splicing groove 14. The pier-adapting curved surface 41 of the positioning adapter component 4 has the same curvature as the outer wall of the pier, which can fit tightly against the pier and prevent water from seeping in from the gap between the module and the pier. The buffer pad 42 has a flexible... The concrete substrate 11 has a planar structure that can adapt to slight displacement or temperature deformation of the protective device, preventing cracks between modules; the planar structure of the concrete substrate 11 can adapt to riverbeds with different slopes, and can cover undulating terrain by adjusting the laying angle of the modules, without the need for customized irregular components; compared with the fitting defects of traditional protection, it eliminates dead angles of scouring; in this embodiment, the impact-resistant and wear-resistant layer 12 is made of silicon carbide composite material, and a steel mesh 15 is also embedded inside the concrete substrate 11. The steel mesh 15 is cross-connected with the reinforcing ribs 32, and a filter grid 16 is provided on the inner side of the drainage hole 13.

[0020] In this embodiment, the top of the splicing protrusion 21 is provided with bolt holes 25, and the fixing bolts 22 are threaded into the bolt holes 25. The waterproof strip 23 is made of aging-resistant rubber, and the anti-corrosion gasket 24 is made of galvanized metal. The pier adaptation arc surface 41 of the positioning adapter component 4 is consistent with the arc of the outer wall of the pier, which can fit tightly to the pier and prevent water from seeping in from the gaps between the modules. The buffer pad 42 is flexible to prevent cracks from forming between the modules. The planar structure of the concrete substrate 11 can adapt to riverbeds with different slopes. By adjusting the laying angle of the modules, undulating terrain can be covered without the need for customized irregular components. Compared with the fitting defects of traditional protection, it eliminates dead angles of scouring. In this embodiment, the bottom of the anchor pile 31 is provided with a spike 34, which is integrally formed with the anchor pile 31. The outer side of the reinforcing rib 32 is wrapped with an anti-corrosion coating 35, which is tightly attached to the concrete substrate 11.

[0021] Specifically, the protective module body 1 is quickly assembled using splicing and fixing components 2: splicing protrusions 21 fit into the splicing grooves 14 of the concrete substrate 11, and adjacent modules can be firmly connected with fixing bolts 22, eliminating the need for on-site pouring; waterproof strips 23 fill the splicing gaps to prevent water seepage; positioning scales 43 facilitate precise alignment of modules during construction, reducing splicing errors. Compared to traditional cast-in-place or riprap protection, this structure can be prefabricated in the factory, requiring only splicing and installation on-site, significantly shortening the construction cycle, reducing the impact of water flow and terrain on construction, and adapting to complex construction environments such as deep water and rapid currents. After splicing, the two devices can form a 45-degree angle, which can divert water flow and prevent water from scouring the bridge piers. Multiple buffer drainage holes are provided above the device to prevent displacement and damage due to excessive water pressure. The anchor piles 31 of the erosion-resistant reinforcement component 3 have spikes 34 at their bottom, which can penetrate deep into the riverbed silt layer to enhance the fixing force between the module and the riverbed and prevent the module from being pushed away by the water flow. The reinforcing ribs 32 inside the concrete base plate 11 are cross-connected with the steel mesh 15 to improve the overall strength of the module and avoid cracking caused by water flow impact. The anti-slip protrusions 33 at the bottom increase the friction with the riverbed and further enhance stability. The erosion-resistant and wear-resistant layer 12 at the top is made of silicon carbide composite material, which can resist long-term erosion by water flow and silt wear, and extend the service life of the protection. The synergistic effect of multiple reinforcement structures greatly improves the protection stability and effectively prevents the riverbed from eroding. The pier-adapting curved surface 41 of the positioning and fitting component 4 matches the curvature of the pier's outer wall, allowing for a tight fit and preventing water from seeping in through the gap between the module and the pier. The buffer layer 42 is flexible, adapting to slight displacement or temperature deformation of the pier and preventing cracks from forming between the module and the pier. The planar structure of the concrete substrate 11 can adapt to riverbeds with different slopes, and undulating terrain can be covered by adjusting the module's laying angle, eliminating the need for custom-made irregular components. Compared to the fitting defects of traditional protection, this structure achieves a tight connection between the pier, module, and riverbed, eliminating dead zones from scouring. The drainage hole 13 of the main body 1 of the protective module penetrates the concrete substrate 11 and the erosion-resistant and wear-resistant layer 12, guiding water flow for normal infiltration and preventing water accumulation or water pressure differential at the top of the protective layer, thus protecting the module structure. The filter grid 16 inside the drainage hole 13 can block sediment from entering the hole, preventing blockage and ensuring long-term unobstructed drainage. This function not only ensures the protective effect but also maintains the original permeability of the riverbed, preventing the protective structure from affecting the groundwater cycle and riverbed ecology. The detachable design of the splicing and fixing component 2 enables partial replacement of the module: if a module is damaged, it can be replaced simply by removing the corresponding fixing bolt 22, without the need for complete removal; the anti-corrosion gasket 24 on the outside of the fixing bolt 22 and the anti-corrosion coating 35 on the outside of the reinforcing rib 32 can reduce rust and reduce the frequency of component replacement; the modules can be standardized during prefabrication, spare modules are easy to store, and there is no need to wait for customization during maintenance, which greatly reduces maintenance costs and time; The standardized design of the main body 1 of the protection module can be adapted to bridge piers of different diameters; by adjusting the number of module splices and the arc size, there is no need to design separately for specific bridge piers; modules of the same specifications can be reused in different river sections, with strong versatility; factory prefabrication has high production efficiency and lower cost than traditional on-site construction; no special deep-water equipment is required during construction, only conventional hoisting and splicing tools are needed, further reducing the overall investment in the project and adapting to bridge protection projects of different scales.

[0022] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] The above provides a detailed description of the prefabricated protective module structure for bridge pier scour zones provided by this utility model. Specific embodiments have been used to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A pier scour area fabricated protection module structure, characterized by, Include: The outer side of the protection module body (1) is provided with splicing and fixing assembly (2), the protection module body (1) is used for protecting pier body (5), the bottom is provided with anti-impact reinforcement assembly (3), the inner side is provided with positioning and adapting assembly (4);The splicing and fixing assembly (2) is detachably connected with the protection module body (1), the anti-impact reinforcement assembly (3) is fixedly connected with the protection module body (1), the positioning and adapting assembly (4) is integrally formed with the protection module body (1), and the riverbed around the pier is realized by cooperation Impact protection.

2. A pier scour area modular protection module structure according to claim 1, characterized in that, The protection module body (1) includes concrete base plate (11), impact-resistant wear-resistant layer (12) and drainage hole (13), the impact-resistant wear-resistant layer (12) is fixedly attached to the top of the concrete base plate (11), the drainage hole (13) is evenly provided on the concrete base plate (11) and the impact-resistant wear-resistant layer (12), and penetrates to the bottom of the concrete base plate (11), the edge of the concrete base plate (11) is provided with splicing groove (14).

3. The pier scour area modular armor structure of claim 1, wherein, The splicing and fixing assembly (2) includes splicing protrusion (21), fixing bolt (22) and waterproof rubber strip (23), the splicing protrusion (21) is matched with the splicing groove (14), and is fixedly installed on the edge of the adjacent concrete base plate (11), the fixing bolt (22) penetrates the splicing protrusion (21) and the concrete base plate (11), and the waterproof rubber strip (23) is attached to the inner side of the splicing groove (14), the outer side of the fixing bolt (22) is provided with corrosion-resistant gasket (24).

4. The pier scour area modular armor structure of claim 1, wherein, The anti-impact reinforcement assembly (3) includes anchor pile (31), reinforcing rib (32) and anti-skid protrusion (33), the anchor pile (31) is fixedly installed at the bottom of the concrete base plate (11) four corners, vertically extends downward, the reinforcing rib (32) is embedded in the concrete base plate (11), and the both ends extend to the splicing groove (14), the anti-skid protrusion (33) is evenly distributed on the bottom of the concrete base plate (11), and located between the anchor pile (31).

5. The pier scour assembly module structure of claim 1, wherein, The positioning and adapting assembly (4) includes pier adapting camber (41), buffer pad (42) and positioning scale (43), the pier adapting camber (41) is provided on the inner side edge of the concrete base plate (11), and is matched with the outer wall camber of the pier, the buffer pad (42) is fixedly attached to the inner side of the pier adapting camber (41), and the positioning scale (43) is drawn on the top edge of the concrete base plate (11), close to the splicing groove (14).

6. The pier scour assembly module structure of claim 2, wherein, The material of the impact-resistant wear-resistant layer (12) is silicon carbide composite material, the inside of the concrete base plate (11) is further embedded with reinforcing mesh (15), and the reinforcing mesh (15) is cross-connected with the reinforcing rib (32), the inner side of the drainage hole (13) is provided with filter grid (16).

7. The pier scour area fabricated armor module structure of claim 3, wherein, The top of the splicing protrusion (21) is provided with bolt hole (25), the fixing bolt (22) is threadedly connected with the bolt hole (25), the material of the waterproof rubber strip (23) is aging-resistant rubber, and the corrosion-resistant gasket (24) is galvanized metal material.

8. The pier scour assembly module structure of claim 4, wherein, The bottom of the anchor pile (31) is provided with a sharp part (34) which is integrally formed with the anchor pile (31), and the outer side of the reinforcing rib (32) is wrapped with a corrosion-resistant coating (35) which is tightly attached to the concrete base plate (11).

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