Bridge pier protection device in river channel

Abstract

The utility model discloses a kind of river bridge pier protection devices in the field of civil engineering technology, including several piers, the outside of several piers is provided with bridge pier protection structure, the bridge pier protection structure includes casing, the casing is sleeved in the outside of pier, the outer surface of the casing is asymmetrically connected with several protrusions along water flow direction.The utility model is by being provided with several asymmetric protrusions, so that casing rotates around pier under the action of water flow, avoid pier when flood occurs intercept too many driftwood, branch and cause the adverse situation of water-blocking area increase, stress fold growth.

Description

Technical Field

[0001] This utility model relates to the technical field of civil engineering, and in particular to a protective device for bridge piers in river channels. Background Technology

[0002] With the rapid development of China's economy, highway construction will also enter a period of rapid growth, and the number of bridges built will increase accordingly. Bridges, as an important component of road transportation, are mostly built to cross natural rivers, ditches, or man-made obstacles. In the construction of road bridges, bridge piers are important components that require protection, as they provide excellent support for the entire bridge structure.

[0003] Currently, extreme weather events are frequent in my country, with torrential rains and flash floods occurring often. Especially in mountainous areas, floods are rampant, and the wood and branches carried by the flash floods are easily intercepted by bridge piers and accumulate in front of the piers, causing the horizontal pressure on the bridge piers to increase exponentially, seriously threatening the safety of the bridges. Utility Model Content

[0004] In order to improve the problem mentioned above that when existing bridge piers encounter floods, wood and branches are easily intercepted by the piers and accumulate in front of the piers, causing the horizontal pressure on the bridge piers to increase exponentially and seriously threatening the safety of the bridge, this utility model provides a protective device for bridge piers in river channels.

[0005] This utility model provides a protective device for bridge piers in river channels, adopting the following technical solution:

[0006] A bridge pier protection device in a river channel includes several piers, and a bridge pier protection structure is provided on the outer side of each of the piers. The bridge pier protection structure includes a protective sleeve, which is sleeved on the outer side of the pier. Several protrusions are asymmetrically connected on the outer surface of the protective sleeve along the direction of water flow.

[0007] By adopting the above technical solution, after the pier is constructed, the protective casing is placed from the top of the pier to the outside of the pier, and the bridge construction continues. After the bridge construction is completed, when the pier encounters flood, the protective casing rotates around the pier under the action of water flow, which can play the role of dispersing and clearing floating wood and branches in front of the pier, preventing the accumulation of floating wood and branches in front of the pier, which would cause the pier to be subjected to excessive water pressure.

[0008] Optionally, the protective sleeve includes an inner layer, which is a closed, hollow cavity.

[0009] By adopting the above technical solution, it is ensured that a portion of the casing is always exposed above the water surface during the rise and fall of floodwaters, so that floating debris such as driftwood and branches can be cleared in a timely manner.

[0010] Optionally, the casing further includes an outer layer, the interior of which is filled with a non-Newtonian fluid, namely a starch solution.

[0011] By adopting the above technical solution, the impact resistance of the casing is improved by utilizing the characteristic that non-Newtonian fluids harden under impact, making the casing less prone to damage and failure in flood turbulence.

[0012] Optionally, the outer wall of the casing is coated with a surfactant.

[0013] By adopting the above technical solution, the friction between the surface of the protective cylinder and the water flow is effectively reduced, thereby further reducing the water flow resistance of the protective cylinder.

[0014] Optionally, the inner wall of the casing is rotatably connected with a number of inner wall pulleys from top to bottom, and the bottom of the casing is rotatably connected with a number of bottom pulleys.

[0015] By adopting the above technical solution, it is ensured that the casing rotates more smoothly along the pier.

[0016] Optionally, the casing may be made of high-strength plastic.

[0017] By adopting the above technical solutions, the casing has high strength and wear resistance, and can withstand greater external pressure without deformation or cracking, thereby extending the service life of the casing.

[0018] Optionally, the cross-section of the protrusion is triangular.

[0019] By adopting the above technical solution, the casing can be rotated along the pier more quickly.

[0020] In summary, this utility model has at least one of the following beneficial effects:

[0021] By setting several asymmetrical protrusions, the casing rotates around the pier under the action of water flow, thus avoiding the unfavorable situation where the pier intercepts too much driftwood and branches during floods, which would increase the water-blocking area and multiply the stress.

[0022] By designing the inner layer as a cavity structure, it is ensured that a portion of the casing remains above the water surface during flood ebb and flow, allowing floating debris such as driftwood and branches to be cleared away promptly.

[0023] By filling the outer layer with a non-Newtonian fluid, the impact resistance of the casing is improved by utilizing the characteristic that non-Newtonian fluid hardens upon impact, making the casing less prone to damage and failure in turbulent floods.

[0024] By applying surfactants to the outer wall of the casing, the friction between the casing surface and the water flow is effectively reduced, further reducing the water flow resistance of the casing. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a top view schematic diagram of the protective sleeve structure of this utility model;

[0028] Figure 3 This is a cross-sectional view of the protective sleeve of this utility model;

[0029] Figure 4 This is a front view structural diagram of the protective sleeve of this utility model.

[0030] In the diagram: 1. Pier; 2. Bridge pier protective structure; 201. Casing; 2011. Inner layer; 2012. Outer layer; 20121. Non-Newtonian fluid; 2013. Surfactant; 202. Protrusion; 203. Inner wall pulley; 204. Bottom pulley. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail below.

[0032] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a bridge pier protection device in a river channel, comprising several piers 1, with a bridge pier protection structure 2 installed on the outer side of each pier 1. The bridge pier protection structure 2 includes a protective casing 201, which includes an inner layer 2011, which is a closed, hollow cavity. This ensures that during flood ebb and flow, a portion of the protective casing 201 remains above the water surface, allowing floating debris such as driftwood and branches to be promptly cleared.

[0033] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 and Figure 3 The casing 201 also includes an outer layer 2012, the interior of which is filled with a non-Newtonian fluid 20121, which is a starch solution. The non-Newtonian fluid 20121 hardens upon impact, thereby improving the impact resistance of the casing 201 and making it less prone to damage and failure in turbulent floods.

[0034] Please refer to the attached diagram in the instruction manual. Figure 2 and Figure 4 The outer wall of the casing 201 is coated with surfactant 2013. This effectively reduces the friction between the surface of the casing 201 and the water flow, further reducing the water flow resistance of the casing 201.

[0035] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 and Figure 3 The casing 201 is fitted onto the outside of the pier 1. The inner wall of the casing 201 is rotatably connected to several inner wall pulleys 203 from top to bottom, and the bottom of the casing 201 is rotatably connected to several bottom pulleys 204. This ensures that the casing 201 rotates more smoothly along the pier 1.

[0036] Please refer to the attached diagram in the instruction manual. Figure 2 and Figure 3 The casing 201 is made of high-strength plastic. This gives the casing 201 high strength and wear resistance, enabling it to withstand greater external pressure without deformation or breakage, thereby extending the service life of the casing 201.

[0037] Please refer to the attached diagram in the instruction manual. Figure 2 and Figure 4 The outer surface of the casing 201 has several protrusions 202 asymmetrically connected along the water flow direction, and the cross-section of the protrusions 202 is a triangular structure. This allows the casing 201 to rotate along the pier 1 more quickly.

[0038] Working principle: In use, an annular casing 201 with asymmetrical protrusions 202 on its outer surface along the water flow direction is made. The casing 201 has two layers: the inner layer 2011 is a closed hollow cavity, and the outer layer 2012 is filled with a non-Newtonian fluid, such as starch solution. At the same time, a surfactant 2013 is applied to the outer wall of the casing 201. After the pier 1 is constructed, the casing 201 is placed over the outside of the pier 1 from above, and the bridge construction continues. After the bridge construction is completed, when the pier 1 is flooded, the casing 201 rotates around the pier 1 under the action of the water flow, which can play the role of dispersing and clearing floating wood and branches in front of the pier, preventing the accumulation of floating wood and branches in front of the pier, which would cause the pier to be subjected to excessive water pressure. The inner wall pulley 203 and the bottom pulley 204 work together to make the casing 201 rotate around the pier 1 more smoothly.

[0039] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A bridge pier protection device in a river, characterized by: It includes several piers (1), and a bridge pier protection structure (2) is provided on the outside of each of the several piers (1). The bridge pier protection structure (2) includes a protective sleeve (201). The protective sleeve (201) is sleeved on the outside of the pier (1). The outer surface of the protective sleeve (201) is asymmetrically connected with several protrusions (202) along the direction of water flow.

2. The bridge pier protection device in a river according to claim 1, characterized in that: The protective sleeve (201) includes an inner layer (2011), which is a closed hollow cavity.

3. The protective device for bridge piers in a river channel according to claim 1, characterized in that: The casing (201) also includes an outer layer (2012), the interior of which is filled with a non-Newtonian fluid (20121), which is a starch solution.

4. The protective device for bridge piers in a river channel according to claim 1, characterized in that: The outer wall of the casing (201) is coated with a surfactant (2013).

5. A protective device for bridge piers in a river channel according to claim 1, characterized in that: The inner wall of the protective sleeve (201) is rotatably connected with a number of inner wall pulleys (203) from top to bottom, and the bottom of the protective sleeve (201) is rotatably connected with a number of bottom pulleys (204).

6. A protective device for bridge piers in a river channel according to claim 1, characterized in that: The casing (201) is made of high-strength plastic.

7. A protective device for bridge piers in a river channel according to claim 1, characterized in that: The cross-section of the protrusion (202) is triangular.

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