Railway bridge pier protection mechanism and construction installation method

Abstract

This invention discloses a protective mechanism for railway bridge piers and its construction and installation method. Connecting rubber blocks are symmetrically distributed on the outer side of an inner cylinder, and a protective outer cylinder is fixed to the outside of the connecting rubber blocks. A cylinder cover is provided above the protective outer cylinder, and a floating adjustment mechanism is provided on the outside of the protective outer cylinder. A fixed outer ring is symmetrically arranged on the outside of the floating adjustment mechanism, and a guide T-groove is opened on the outer side of the fixed outer ring. A sliding hard rubber ring is provided in the guide T-groove, and an outer rubber ring is provided outside the sliding hard rubber ring. Anti-collision rubber blocks are symmetrically distributed outside the outer rubber ring. This invention, by attaching an inner cylinder to the pier surface in conjunction with a corrosion-resistant epoxy coating, can effectively prevent the pier surface from being eroded by seawater or other water currents. Simultaneously, the multi-stage buffering of multiple sets of rubber blocks can effectively prevent damage to the pier caused by ship collisions. The movable outer rubber ring can buffer and guide the impact force of a ship during a collision, avoiding damage to the pier from a head-on collision.

Description

Technical Field

[0001] This invention relates to the field of bridge pier protection technology, and in particular to a railway bridge pier protection mechanism and its construction and installation method. Background Technology

[0002] In recent years, with the rapid development of urban and rural construction, the existing highway and railway transportation facilities can no longer meet the transportation requirements. Therefore, many new highway and railway bridges have been built. Highway and railway bridges refer to the elevated structures that allow highways and railways to cross rivers, valleys or other obstacles and have the capacity to bear loads. In some areas that need to cross rivers, streams and seas, the protection against erosion of bridge piers has become a problem.

[0003] Currently, the protection of piers for some railway bridges spanning rivers, lakes, and even seas is limited to extending their service life by altering the properties of the poured concrete. However, erosion still occurs, and occasional collisions with passing vessels can lead to serious accidents. Traditional protection methods involve wrapping the pier surface with a layer of anti-collision pads, but this is ineffective, as impacts still damage the piers, affecting their safety and causing serious damage to vessels. Therefore, this invention proposes a railway bridge pier protection mechanism and its construction and installation method to address the problems existing in the prior art. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a railway bridge pier protection mechanism and its construction and installation method. This mechanism and method, by attaching an inner cylinder to the pier surface in conjunction with a corrosion-resistant epoxy coating, effectively prevents the pier surface from being eroded by seawater or other water currents, thus effectively protecting the pier and extending its service life. Simultaneously, the multi-stage buffering effect of multiple sets of rubber blocks effectively prevents damage to the pier from ship collisions. Furthermore, the movable outer rubber ring, during a ship collision, can both buffer and guide the impact force, deflecting it and preventing head-on collisions that could damage the pier. This effectively protects both the pier and the safe navigation of the ship.

[0005] To achieve the objectives of this invention, the following technical solution is provided: a railway bridge pier protection mechanism and its construction and installation method, comprising an inner fitting cylinder, a protective outer cylinder, connecting rubber blocks, a cylinder cover, a floating adjustment mechanism, and an anti-collision guide mechanism. Connecting rubber blocks are symmetrically distributed and bonded to the outer side of the inner fitting cylinder. A protective outer cylinder is fixedly bonded to the outside of the connecting rubber blocks. A cylinder cover is fixedly welded to the top of the protective outer cylinder. A floating adjustment mechanism is provided on the outside of the protective outer cylinder. The anti-collision guide mechanism includes a fixed outer ring, a guide T-groove, a sliding hard rubber ring, an outer rubber ring, and anti-collision rubber blocks. A fixed outer ring is symmetrically fixedly welded to the outside of the floating adjustment mechanism. A guide T-groove is recessed inward on the outer side of the fixed outer ring. A sliding hard rubber ring is movably disposed within the guide T-groove. Two sets of sliding hard rubber rings are symmetrically welded to the upper and lower sides of the fixed outer ring. The sliding hard rubber rings are correspondingly disposed with the fixed outer ring. An outer rubber ring is fixedly disposed on the outside of the sliding hard rubber ring. The outer rubber ring is fixedly connected to both the upper and lower sets of sliding hard rubber rings. Anti-collision rubber blocks are symmetrically distributed on the outside of the outer rubber ring.

[0006] Further improvements are made in that: the floating adjustment mechanism includes a vertical guide groove, a lifting outer cover, a buffer rubber block, and an embedded float. The outer protective cylinder has vertical guide grooves symmetrically distributed on its outer side. The vertical guide grooves are inwardly grooved structures. The outer protective cylinder has a lifting outer cover that is movably installed on its outer side. The inner side of the lifting outer cover is provided with a buffer rubber block between it and the vertical guide groove. The lower side of the lifting outer cover has an open-shaped embedded float, and multiple sets of embedded floats are arranged.

[0007] Further improvements include: the buffer block is fixedly bonded to the inner side of the lifting cover and slidably adapted to the vertical guide groove, which can prevent the lifting cover from rotating and colliding with the protective outer cylinder; the fixed outer ring is symmetrically fixedly welded to the outer side of the lifting cover.

[0008] A further improvement is that a ball groove is provided on the inner side wall of the guide T-groove, and rolling steel balls are distributed in the ball groove. The rolling steel balls are set out to protrude from the ball groove. The rolling steel balls are adapted to the sliding hard rubber ring to avoid wear caused by sliding friction of the sliding hard rubber ring. A water leakage hole is provided through the fixed outer ring at the lower inner side of the guide T-groove.

[0009] Further improvements include: the outer surface of the inner cylinder is coated with a corrosion-resistant epoxy coating; the top of the cylinder cover is open and a sealing adapter ring is fixedly installed on the upper inner side of the opening; the sealing adapter ring is sealed and fitted to the outer surface of the inner cylinder; a limiting ring is fixedly welded to the upper side of the inner cylinder; a reinforcing rib is welded between the lower part of the limiting ring and the inner cylinder; and the cylinder cover overlaps the limiting ring.

[0010] A method for constructing and installing a protective mechanism for railway bridge piers includes the following steps:

[0011] Step 1: Install the inner cylinder. After the bridge pier is cast and formed, attach the inner cylinder to its surface. Then, use cement grout to seal the bottom of the inner cylinder and the bottom of the bridge pier and wait for it to form. Then, weld the limiting ring on the inner cylinder and spray a corrosion-resistant epoxy coating on its outer surface.

[0012] Step 2: Install the outer protective cylinder. After the coating on the outer surface of the inner cylinder has cured, fix the connecting rubber blocks symmetrically at equal intervals on its surface. Then, put the outer protective cylinder on the outside of the inner cylinder and weld the cylinder cover to the outer protective cylinder as a whole, so that the cylinder cover overlaps on the limiting ring for support.

[0013] Step 3: Install the floating adjustment mechanism. Place the lifting cover on the outside of the protective outer cylinder. According to the position of the vertical guide groove, place buffer rubber blocks on the inner side of the lifting cover and fill the embedded float into the opening on the lower side of the lifting cover.

[0014] Step 4: Install the anti-collision guide mechanism. Insert the sliding hard rubber ring into the front side of the fixed outer ring, then fit the fixed outer ring onto the outside of the lifting cover and weld it in place. Finally, fix the outer rubber ring with the anti-collision rubber block on the outside of the sliding hard rubber ring to complete the construction.

[0015] Further improvements are made as follows: In step one, the pouring and sealing process involves first setting up a barrier larger than the inner cylinder at the bottom of the pier, then attaching the inner cylinder to the surface of the pier and ensuring that the bottom end is flush with the bottom surface of the barrier. Cement slurry is then poured into the barrier and allowed to cure. After the cement slurry has cured, it is cured for 3-5 days. Finally, a corrosion-resistant epoxy coating is sprayed onto the outer surface of the inner cylinder.

[0016] A further improvement is made in the following steps: In step two, when laying the connecting blocks, corrosion-resistant epoxy adhesive is used to bond the connecting blocks to the outer surface of the inner cylinder. After the adhesive has solidified, corrosion-resistant epoxy adhesive is applied to the outer surface of the connecting blocks. Then, the protective outer cylinder is fitted onto the outer side of the connecting blocks and supported at the lower end by multiple sets of hydraulic jacks while waiting for the adhesive to solidify. During the waiting period, the cylinder cover is placed on the upper end of the protective outer cylinder and welded to it. After the corrosion-resistant epoxy adhesive has solidified, the hydraulic jacks can be removed.

[0017] A further improvement is that the buffer rubber block in step three and the inner side of the lifting outer cover, as well as the sliding hard rubber ring and the inner side of the outer rubber ring in step four, are bonded with corrosion-resistant epoxy adhesive.

[0018] The beneficial effects of this invention are as follows: By attaching an inner cylinder to the surface of the bridge pier in conjunction with a corrosion-resistant epoxy coating, this invention can effectively prevent the surface of the bridge pier from being eroded by seawater and other water currents, effectively protecting the bridge pier and extending its service life. At the same time, the multi-level buffering with multiple sets of rubber blocks can effectively prevent damage to the bridge pier caused by ship collisions. The movable outer rubber ring can buffer the impact of a ship while sliding and guiding the impact force to the opposite direction, avoiding damage to the bridge pier caused by a head-on collision with the ship, effectively protecting the bridge pier and the safe navigation of the ship. Attached Figure Description

[0019] Figure 1 This is the front view of Embodiment 1 of the present invention.

[0020] Figure 2 This is a front sectional view of Embodiment 1 of the present invention.

[0021] Figure 3 Appendix to Embodiment 1 of the present invention Figure 2 Enlarged view of point A in the image.

[0022] Figure 4 This is a flowchart of the construction and installation method in Embodiment 2 of the present invention.

[0023] The components include: 1. Inner cylinder fitting; 2. Outer cylinder protection; 3. Connecting rubber block; 4. Cylinder cover; 5. Fixing outer ring; 6. Guide T-groove; 7. Sliding hard rubber ring; 8. Outer rubber ring; 9. Anti-collision rubber block; 10. Vertical guide groove; 11. Lifting outer cover; 12. Buffer rubber block; 13. Embedded float; 14. Ball groove; 15. Rolling steel ball; 16. Drain hole; 17. Corrosion-resistant epoxy coating; 18. Sealing adapter rubber ring; 19. Limiting retaining ring. Detailed Implementation

[0024] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0025] Example 1

[0026] according to Figure 1 , Figure 2 and Figure 3As shown, this embodiment provides a railway bridge pier protection mechanism, including an inner cylinder 1, a protective outer cylinder 2, connecting rubber blocks 3, a cylinder cover 4, a floating adjustment mechanism, and an anti-collision guide mechanism. Connecting rubber blocks 3 are symmetrically distributed and bonded to the outer side of the inner cylinder 1. The protective outer cylinder 2 is fixedly bonded to the outside of the connecting rubber blocks 3. The cylinder cover 4 is fixedly welded to the top of the protective outer cylinder 2. A floating adjustment mechanism is provided on the outside of the protective outer cylinder 2. The anti-collision guide mechanism includes a fixed outer ring 5, a guide T-groove 6, a sliding hard rubber ring 7, an outer rubber ring 8, and an anti-collision guide mechanism. The impact block 9 has a fixed outer ring 5 symmetrically welded to the outside of the floating adjustment mechanism. The outer side of the fixed outer ring 5 is recessed inward and has a guide T-groove 6. A sliding hard rubber ring 7 is movably installed in the guide T-groove 6. Two sets of sliding hard rubber rings are symmetrically welded to the upper and lower parts of the fixed outer ring. The sliding hard rubber rings are correspondingly installed to the fixed outer ring. An outer rubber ring 8 is fixedly installed on the outside of the sliding hard rubber ring 7. The outer rubber ring and the two sets of sliding hard rubber rings are fixedly connected. Anti-collision rubber blocks 9 are symmetrically distributed on the outside of the outer rubber ring 8, which can deflect and guide the impact force while buffering the impact.

[0027] The floating adjustment mechanism includes a vertical guide groove 10, a lifting outer cover 11, a buffer rubber block 12, and an embedded float 13. The vertical guide groove 10 is symmetrically distributed on the outer side of the protective outer cylinder 2. The vertical guide groove is an inwardly grooved structure. The lifting outer cover 11 is movably installed on the outer side of the protective outer cylinder 2. The buffer rubber block 12 is installed between the inner side of the lifting outer cover 11 and the vertical guide groove 10. An embedded float 13 is embedded in the lower opening of the lifting outer cover 11. Multiple sets of embedded floats are arranged, which can adaptively adjust the position of the anti-collision guide mechanism according to the water level to ensure that it is at a reasonable height when colliding with the ship.

[0028] The buffer block 12 is fixedly bonded to the inner side of the lifting cover 11 and slides with the vertical guide groove 10, which can prevent the lifting cover from rotating and colliding with the protective outer cylinder. The fixed outer ring 5 is symmetrically fixedly welded to the outer side of the lifting cover 11.

[0029] A ball groove 14 is provided on the inner wall of the guide T-groove 6. Rolling steel balls 15 are distributed in the ball groove 14. The rolling steel balls protrude from the ball groove and are adapted to the sliding hard rubber ring 7 to avoid wear caused by sliding friction of the sliding hard rubber ring. A water leakage hole 16 is provided through the fixed outer ring 5 at the lower inner side of the guide T-groove 6 to prevent water from accumulating in the guide T-groove.

[0030] The ball grooves can also be arranged in two sets, one above the other, to prevent the sliding hard rubber ring from tilting under force and rubbing against the inner side of the guide T groove. Drainage holes can also be provided on the sliding hard rubber ring to effectively prevent water from accumulating in the upper groove of the T-shaped sliding hard rubber ring.

[0031] The outer side of the inner cylinder 1 is coated with a corrosion-resistant epoxy coating 17. The top of the cylinder cover 4 is open and a sealing adapter ring 18 is fixedly installed on the upper side of the opening. The sealing adapter ring 18 is sealed and fitted to the outer side of the inner cylinder 1. A limit ring 19 is fixedly welded to the upper side of the inner cylinder 1. A reinforcing rib is welded between the lower part of the limit ring and the inner cylinder. The cylinder cover 4 overlaps the limit ring 19.

[0032] When the railway bridge pier protection mechanism of the present invention is installed, as the water level rises and falls, the floating adjustment mechanism can ensure that the anti-collision guide mechanism is always at a reasonable collision height. When a ship collision occurs, the outer anti-collision rubber block first buffers, then the inner buffer rubber block is subjected to force buffering, and finally the connecting rubber block is subjected to force compression buffering. The triple buffering effectively avoids the damage to the pier caused by the ship collision. After the ship collision, the sliding hard rubber ring is subjected to force and slides inside the guide T-groove, driving the outer rubber ring to slide, tilting and guiding the impact force of the ship to dissipate the force, avoiding direct collision that would cause serious damage to the hull and pier.

[0033] Example 2

[0034] according to Figure 4 As shown in the figure, this embodiment provides a construction and installation method for a railway bridge pier protection mechanism, including the following steps:

[0035] Step 1: Install the inner cylinder. After the bridge pier is cast and formed, attach the inner cylinder to its surface. Then, use cement grout to seal the bottom of the inner cylinder and the bottom of the bridge pier and wait for it to form. Then, weld the limiting ring on the inner cylinder and spray a corrosion-resistant epoxy coating on its outer surface.

[0036] The specific process of pouring and sealing involves first setting up a barrier larger than the inner cylinder at the bottom of the bridge pier, then attaching the inner cylinder to the surface of the bridge pier and ensuring that the bottom end is flush with the bottom surface of the barrier. Cement slurry is then poured into the barrier and allowed to cure. After the cement slurry has cured, it is cured for 3-5 days. Finally, a corrosion-resistant epoxy coating is sprayed onto the outer surface of the inner cylinder.

[0037] Step 2: Install the outer protective cylinder. After the coating on the outer surface of the inner cylinder has cured, fix the connecting rubber blocks symmetrically at equal intervals on its surface. Then, put the outer protective cylinder on the outside of the inner cylinder and weld the cylinder cover to the outer protective cylinder as a whole, so that the cylinder cover overlaps on the limiting ring for support.

[0038] When laying the connecting blocks, use corrosion-resistant epoxy adhesive to bond the connecting blocks to the outer surface of the inner cylinder. After the adhesive has cured, apply corrosion-resistant epoxy adhesive to the outer surface of the connecting blocks. Then, fit the protective outer cylinder onto the outside of the connecting blocks and use multiple sets of hydraulic jacks to support the lower end while waiting for the adhesive to cure. During the waiting period, place the cylinder cover on the upper end of the protective outer cylinder and weld it to it. After the corrosion-resistant epoxy adhesive has cured, remove the hydraulic jacks.

[0039] Step 3: Install the floating adjustment mechanism. Place the lifting cover on the outside of the protective outer cylinder. According to the position of the vertical guide groove, place buffer rubber blocks on the inner side of the lifting cover and fill the embedded float into the opening on the lower side of the lifting cover. The buffer rubber blocks are bonded to the inner side of the lifting cover with corrosion-resistant epoxy adhesive.

[0040] Step 4: Install the anti-collision guide mechanism. Insert the front side of the fixed outer ring into the sliding hard rubber ring, then fit the fixed outer ring onto the outside of the lifting cover and weld it in place. Finally, fix the outer rubber ring with the anti-collision rubber block on the outside of the sliding hard rubber ring to complete the construction. The sliding hard rubber ring and the inner side of the outer rubber ring are bonded together with corrosion-resistant epoxy adhesive.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A railway bridge pier protection mechanism, characterized by: The device includes an inner fitting cylinder (1), a protective outer cylinder (2), connecting rubber blocks (3), a cylinder cover (4), a floating adjustment mechanism, and an anti-collision guide mechanism. The connecting rubber blocks (3) are symmetrically distributed on the outer side of the inner fitting cylinder (1). The protective outer cylinder (2) is fixed to the outside of the connecting rubber blocks (3). The cylinder cover (4) is provided above the protective outer cylinder (2). The floating adjustment mechanism is provided on the outside of the protective outer cylinder (2). The floating adjustment mechanism includes a vertical guide groove (10), a lifting cover (11), and a buffer. The protective outer cylinder (2) has vertical guide grooves (10) symmetrically distributed on its outer side. The protective outer cylinder (2) has a lifting cover (11) on its outer side. The lifting cover (11) has a buffer rubber block (12) between its inner side and the vertical guide groove (10). The lifting cover (11) has an open lower side with an embedded float (13). The buffer rubber block (12) is fixedly connected to the inner side of the lifting cover (11) and slides with the vertical guide groove (10). The anti-collision guiding mechanism includes a fixed outer ring (5), a guide T-groove (6), a sliding hard rubber ring (7), an outer rubber ring (8), and anti-collision rubber blocks (9). The fixed outer ring (5) is symmetrically arranged on the outer side of the lifting cover (11). The outer side of the fixed outer ring (5) is provided with a guide T-groove (6). The guide T-groove (6) is provided in the guide T-groove (6). The sliding hard rubber ring (7) is provided on the outer side of the sliding hard rubber ring (7). The outer rubber ring (8) is provided on the outer side of the outer rubber ring (8). Anti-collision rubber blocks (9) are symmetrically distributed on the outer side of the outer rubber ring (8). The inner wall of the guide T-groove (6) is provided with a ball groove (14), and rolling steel balls (15) are distributed in the ball groove (14). The rolling steel balls (15) are adapted to the sliding hard rubber ring (7) and a water leakage hole (16) is provided through the fixed outer ring (5) on the lower inner side of the guide T-groove (6).

2. A railway bridge pier protection mechanism according to claim 1, characterized in that: The outer side of the inner tube (1) is provided with a corrosion-resistant epoxy coating (17). The top of the tube cover (4) is open and a sealing adapter ring (18) is provided on the upper side of the opening. The sealing adapter ring (18) is sealed and fitted to the outer side of the inner tube (1). The upper side of the inner tube (1) is provided with a limiting ring (19), and the top of the tube cover (4) overlaps on the upper side of the limiting ring (19).

3. A construction and installation method for a railway bridge pier protection mechanism according to any one of claims 1-2, characterized in that, Includes the following steps: Step 1: Install the inner cylinder. After the bridge pier is cast and formed, attach the inner cylinder to its surface. Then, use cement grout to seal the bottom of the inner cylinder and the bottom of the bridge pier and wait for it to form. Then, weld the limiting ring on the inner cylinder and spray a corrosion-resistant epoxy coating on its outer surface. Step 2: Install the outer protective cylinder. After the coating on the outer surface of the inner cylinder has cured, fix the connecting rubber blocks symmetrically at equal intervals on its surface. Then, put the outer protective cylinder on the outside of the inner cylinder and weld the cylinder cover to the outer protective cylinder as a whole, so that the cylinder cover overlaps on the limiting ring for support. Step 3: Install the floating adjustment mechanism. Place the lifting cover on the outside of the protective outer cylinder. According to the position of the vertical guide groove, place buffer rubber blocks on the inner side of the lifting cover and fill the embedded float into the opening on the lower side of the lifting cover. Step 4: Install the anti-collision guide mechanism. Insert the sliding hard rubber ring into the front side of the fixed outer ring, then fit the fixed outer ring onto the outside of the lifting cover and weld it in place. Finally, fix the outer rubber ring with the anti-collision rubber block on the outside of the sliding hard rubber ring to complete the construction.

4. The construction and installation method of a railway bridge pier protection mechanism according to claim 3, characterized in that: In step one, the sealing process involves first setting up a barrier larger than the inner cylinder at the bottom of the pier, then attaching the inner cylinder to the pier surface, ensuring that the bottom is flush with the bottom of the barrier. Cement slurry is then poured into the barrier and allowed to cure. After the cement slurry has cured, the inner cylinder is cured for 3-5 days, and then a corrosion-resistant epoxy coating is sprayed onto the outer surface of the inner cylinder.

5. The construction and installation method of a railway bridge pier protection mechanism according to claim 3, characterized in that: In step two, when laying the connecting blocks, use corrosion-resistant epoxy adhesive to bond the connecting blocks to the outer surface of the inner cylinder. After the adhesive has solidified, apply corrosion-resistant epoxy adhesive to the outer surface of the connecting blocks. Then, fit the protective outer cylinder onto the outside of the connecting blocks and use multiple sets of hydraulic jacks to support the lower end while waiting for the adhesive to solidify. During the waiting period, place the cylinder cover on the upper end of the protective outer cylinder and weld it to it. After the corrosion-resistant epoxy adhesive has solidified, remove the hydraulic jacks.

6. The construction and installation method of a railway bridge pier protection mechanism according to claim 3, characterized in that: In step three, the buffer rubber block and the inner side of the lifting outer cover are bonded together with corrosion-resistant epoxy adhesive, as are the sliding hard rubber ring and the inner side of the outer rubber ring in step four.

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