Self-sinking type integrally-assembled bridge foundation scouring protection ring

Abstract

The utility model provides a self-sinking type integrally-assembled bridge foundation scouring protection ring which is used for being installed on a bridge pier column on a riverbed surface and comprises a main protection plate and a side protection ring, a first connecting groove is formed in the end of the main protection plate, a second connecting groove is formed in the side protection ring, and the first connecting groove and the second connecting groove are matched to form a cavity for containing the bridge pier column. The shape of the cavity is matched with the section of the bridge pier column, a first connecting assembly connected with the side protection ring is arranged on the main protection plate, and the main protection plate and the side protection ring are detachably connected through the first connecting assembly. The protection ring is installed in an assembled mode, on one hand, the installation position of the protection ring on a riverbed does not affect navigation, on the other hand, punching or slotting in water and fixing of the protection ring are not needed, the installation process is not affected by water flow, the installation difficulty of the protection ring is effectively reduced, and the installation efficiency of the protection ring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge foundation protection, in particular to a self-sinking integrally assembled bridge foundation scour protection ring. Background Art

[0002] Bridge collapses caused by floods are a major cause of bridge collapse, with scouring being a key factor. Scour erodes the riverbed and reduces the depth of bridge foundations, affecting the bearing capacity and stability of the bridge substructure.

[0003] To reduce the impact of scour on bridge damage, various scour protection measures have been adopted both domestically and internationally. Among them, retaining rings reduce the velocity and flow of the downward jet from the pile bottom by changing the water flow field, thereby reducing the depth of scour.

[0004] For example, the Chinese invention patent with patent number CN202210230472.0 provides a method and device for local protection of river bridge foundations. The device diverts water with a higher flow rate on the surface of the river through a pipe to a place close to the riverbed, and flows out in a direction perpendicular to the direction of the river water flow at the bottom of the bridge pier, interfering with the downward flow in front of the pier that causes local scouring in front of the bridge pier caused by the moving water flow of the river, thereby destroying the water flow structure of the downward flow in front of the pier, and weakening the intensity of the downward flow in front of the pier and the horseshoe-shaped vortex, thereby achieving the effect of preventing the bridge foundation from being scoured.

[0005] However, most of the existing bridge foundation scour protection devices are installed after drilling holes in the foundation. This method is easily affected by water flow when installed under the water surface, making installation more difficult. Therefore, a self-sinking integrally assembled bridge foundation scour protection ring is proposed to solve the above-mentioned technical problems. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the utility model proposes a self-sinking integrally assembled bridge foundation scour protection ring to solve the technical problem that most of the existing bridge foundation scour protection devices proposed in the above background technology are installed after drilling holes in the foundation. This method is easily affected by water flow when installed under the water surface, making installation more difficult.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-sinking integrally assembled bridge foundation scour protection ring, which is used to be installed on a bridge pier column on a riverbed, comprising:

[0008] A main guard plate, the end of which is provided with a first connecting groove;

[0009] The side retaining ring is provided with a second connecting groove, wherein the first connecting groove and the second connecting groove cooperate to form a cavity for accommodating the pier column, and the shape of the cavity is adapted to the cross-section of the pier column; and

[0010] The first connecting component is arranged on the main guard plate and connected to the side guard ring so as to detachably connect the main guard plate and the side guard ring.

[0011] In a preferred embodiment, the first connecting component includes:

[0012] a first main splicing rib, provided at an end portion of the main guard plate;

[0013] A second main splicing rib is provided at the end of the side guard ring; and

[0014] Connecting bolts are connected to the first main splicing rib and the second main splicing rib.

[0015] In a preferred embodiment, a first connecting groove is provided at both ends of the main guard plate, and two groups of side guard rings are provided, and the two groups of side guard rings are respectively provided at both ends of the main guard plate, and the second connecting grooves on the two groups of side guard rings respectively cooperate with the two groups of the first connecting grooves to form a cavity for accommodating the bridge pier column.

[0016] In a preferred embodiment, the main guard plate includes a first guard plate and a second guard plate that are arranged opposite to each other, and the first guard plate and the second guard plate are connected by a second connecting assembly.

[0017] In a preferred embodiment, the second connecting assembly includes two groups of auxiliary splicing ribs, which are respectively arranged on the first guard plate and the second guard plate, and the two groups of auxiliary splicing ribs abut against each other, and the two groups of auxiliary splicing ribs are connected by connecting bolts.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The main guard plate and side guard rings in this protective ring are factory-assembled. After being transported to the bridge site by car, they still need to be transported to the water surface where the bridge is located by boat. A small hoist on the boat lifts the main guard plate and side guard ring around the pier column, aligning the first and second connecting grooves with the outer surface of the pier column. Finally, the main guard plate and side guard rings are secured using the first connecting assembly, quickly completing the installation of the protective ring. After installation, the main guard plate and side guard rings form a single unit and sink underwater until they contact the riverbed, effectively protecting the bridge foundation and riverbed. Installation of this protective ring can reduce the maximum scour pit depth by over 40% and the vertical near-bottom flow velocity on the water-facing surface of the pier column by over 50%. Its modular installation ensures that its installation location on the riverbed does not affect navigation. Furthermore, it eliminates the need for drilling or slotting in the water or securing the guard ring, making the installation process unaffected by currents. This effectively reduces installation difficulty and improves installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a self-sinking integrally assembled bridge foundation scour protection ring provided by the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a self-sinking integrally assembled bridge foundation scour protection ring after disassembly;

[0023] Figure 3 This is a schematic diagram of the installation structure of a self-sinking integrally assembled bridge foundation scour protection ring of the utility model;

[0024] Figure 4 for Figure 3 Top view of .

[0025] Reference numerals:

[0026] 1. Riverbed surface; 2. Bridge pier column; 3. Main guard plate; 31. First guard plate; 32. Second guard plate; 4. Secondary splicing rib; 5. First main splicing rib; 6. First connecting groove; 7. Side guard ring; 8. Second main splicing rib; 9. Second connecting groove; 10. Connecting bolts. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technicians in this field can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0028] Example:

[0029] like Figures 1 to 4 As shown, the present invention provides a self-sinking, integrally assembled bridge foundation scour protection ring for installation on a pier column 2 on a riverbed surface 1. The ring comprises a main guard plate 3 and a side guard ring 7. A first connecting groove 6 is provided at the end of the main guard plate 3, and a second connecting groove 9 is provided on the side guard ring 7. The first connecting groove 6 and the second connecting groove 9 cooperate to form a cavity for accommodating the pier column 2, and the shape of the cavity is adapted to the cross-section of the pier column 2. The main guard plate 3 is also provided with a first connecting assembly connected to the side guard ring 7. The main guard plate 3 and the side guard ring 7 are detachably connected by the first connecting assembly. The first connecting assembly includes a first main splicing rib 5 provided at the end of the main guard plate 3 and a second main splicing rib 8 provided at the end of the side guard ring 7. The first main splicing rib 5 and the second main splicing rib 8 are connected by connecting bolts 10.

[0030] The main guard plate 3 and the side guard ring 7 in the protective ring are both processed and manufactured in the factory and transported to the river surface by means of transportation for assembly. During the assembly process, the main guard plate 3 and the side guard ring 7 are hoisted to the river surface by a hoisting tool, so that the pier column 2 is set in the cavity formed by the first connecting groove 6 and the second connecting groove 9, and the first connecting groove 6 and the second connecting groove 9 are in contact with the pier column 2. Finally, the first main splicing rib 5 and the second main splicing rib 8 are connected and fixed by connecting bolts 10.

[0031] like Figure 1 、 2 As shown in Figures 4 and 5, it can be understood that in some embodiments, a first connecting groove 6 is provided at both ends of the main guard plate 3, and two groups of side guard rings 7 are provided. The two groups of side guard rings 7 are respectively arranged at both ends of the main guard plate 3, and the second connecting grooves 9 on the two groups of side guard rings 7 respectively cooperate with the two groups of first connecting grooves 6 to form a cavity for accommodating the pier column 2.

[0032] The two groups of bridge pier columns 2 can be respectively inserted into the two groups of cavities so that the device can also protect the foundations of the two groups of bridge pier columns 2. In addition, it can be understood that in some embodiments, multiple groups of main guard plates 3 can be assembled and side guard rings 7 can be connected at both ends to protect the foundations of multiple groups of bridge pier columns 2. Through the specific structure of the guard ring, the appropriate number of main guard plates 3 can be selected for assembly according to actual needs, thereby improving the applicability of the guard ring.

[0033] like Figure 2 As shown, in this embodiment, the main guard plate 3 includes a first guard plate 31 and a second guard plate 32 arranged opposite each other, and the first guard plate 31 and the second guard plate 32 are connected by a second connecting assembly. The second connecting assembly includes two sets of secondary splicing ribs 4, which are respectively provided on the first guard plate 31 and the second guard plate 32, and the two sets of secondary splicing ribs 4 abut against each other. The two sets of secondary splicing ribs 4 are connected by connecting bolts 10.

[0034] The main guard plate 3 can be configured as a detachable first guard plate 31 and a second guard plate 32, so that the first guard plate 31 and the second guard plate 32 can be placed into the space between the two groups of pier columns 2 from both sides of the pier column 2, and then the positions of the first guard plate 31 and the second guard plate 32 are fixed by connecting bolts 10 to avoid interference between the two groups of pier columns 2 and the installation of the main guard plate 3, further improving the convenience of the installation of the protective ring and reducing the limitations of the installation of the protective ring.

[0035] Specific usage and beneficial effects of this utility model:

[0036] The main guard plate 3 and side guard rings 7 of the protective ring are assembled and processed in the factory. After being transported to the bridge site by car, they still need to be transported to the water surface where the bridge is located by boat. Using a small lifting device on the boat, the main guard plate 3 and side guard rings 7 are hoisted around the pier column 2, and the first connecting groove 6 and the second connecting groove 9 are aligned with the outer surface of the pier column 2. Finally, the main guard plate 3 and side guard rings 7 are fixed together using the first connecting assembly, quickly completing the installation of the protective ring. After installation, the main guard plate 3 and the side guard ring 7 form a whole and sink into the water until they contact the riverbed surface 1, which can effectively protect the riverbed of the bridge foundation. After installing the guard ring, the maximum scour pit depth can be reduced by more than 40%, and the vertical near-bottom flow velocity of the water-facing surface of the pier column 2 can be reduced by more than 50%. It adopts an assembled installation method. On the one hand, its installation position on the riverbed will not affect navigation. On the other hand, there is no need to drill holes or grooves in the water and fix the guard ring. The installation process will not be affected by the water flow, which effectively reduces the installation difficulty and improves the installation efficiency of the guard ring.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments. It is obvious to those skilled in the art that modifications or improvements can be made based on the present invention. Therefore, such modifications or improvements made without departing from the spirit of the present invention are within the scope of protection claimed by the present invention.

Claims

1. A self-sinking integrally assembled bridge foundation scour protection ring, used for installation on a bridge pier column (2) on a riverbed surface (1), characterized in that: Includes: A main guard plate (3) is provided with a first connecting groove (6) at an end thereof; The side retaining ring (7) is provided with a second connecting groove (9), the first connecting groove (6) and the second connecting groove (9) cooperate to form a cavity for accommodating the pier column (2), and the shape of the cavity is adapted to the cross section of the pier column (2); and A first connecting component is provided on the main guard plate (3) and is connected to the side guard ring (7) so as to detachably connect the main guard plate (3) and the side guard ring (7).

2. The self-sinking integrally assembled bridge foundation scour protection ring according to claim 1 is characterized in that: The first connecting component includes: A first main splicing rib (5) is provided at an end portion of the main guard plate (3); A second main splicing rib (8) is provided at the end of the side guard ring (7); and A connecting bolt (10) is connected to the first main splicing rib (5) and the second main splicing rib (8).

3. The self-sinking integrally assembled bridge foundation scour protection ring according to claim 1 is characterized by: Both ends of the main guard plate (3) are provided with a first connecting groove (6), and two groups of side guard rings (7) are provided. The two groups of side guard rings (7) are respectively provided at the two ends of the main guard plate (3), and the second connecting grooves (9) on the two groups of side guard rings (7) respectively cooperate with the two groups of the first connecting grooves (6) to form a cavity for accommodating the bridge pier column (2).

4. The self-sinking integrally assembled bridge foundation scour protection ring according to claim 1 is characterized by: The main guard plate (3) comprises a first guard plate (31) and a second guard plate (32) which are arranged opposite to each other, and the first guard plate (31) and the second guard plate (32) are connected via a second connecting assembly.

5. The self-sinking integrally assembled bridge foundation scour protection ring according to claim 4 is characterized by: The second connecting assembly comprises two groups of auxiliary splicing ribs (4), the two groups of auxiliary splicing ribs (4) being respectively arranged on the first guard plate (31) and the second guard plate (32), and the two groups of auxiliary splicing ribs (4) being in contact with each other, and the two groups of auxiliary splicing ribs (4) being connected by connecting bolts (10).

Images