Bridge pier pile protection device with underwater blasting impact resisting function

Abstract

The utility model relates to an underwater anti-blasting-impact pier pile protection device, and belongs to the technical field of bridge structure protection.The pier pile protection device comprises a baffle and a plurality of supporting rods, a bearing platform and a pier pile are arranged in the baffle, the supporting rods are arranged between the baffle and the bearing platform, and the two ends of each supporting rod are connected to the bearing platform and the baffle correspondingly; the baffle is of a cylindrical structure and is formed by sequentially bonding a polyurea coating, a first layer of steel plate, an anti-impact tile, gradient foamed aluminum, a stainless steel honeycomb plate layer and a second layer of steel plate from outside to inside. According to the pier pile protection device with the underwater blasting impact resisting effect, when water flow is resisted, the circular structures of the baffles can reduce the stress concentration phenomenon, the borne force can be evenly transmitted to all positions of the inner bearing platform, meanwhile, the streamline cylinders can effectively reduce the resistance of the water flow and wind power, and the service life of the pier pile protection device is prolonged. A porous elastic structure is arranged in the baffle, so that the influence of blasting vibration on the pier can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of bridge structure protection, and in particular to a bridge pier pile protection device capable of resisting underwater blasting impact. Background Art

[0002] With the increasing use of blasting in various engineering projects, it is becoming increasingly important to protect existing facilities and existing construction sites from blasting impacts. Blasting is particularly important in the construction of cross-river and cross-sea bridges. The shock waves from underwater blasting exert a tremendous impact on the piers. If the piers are not properly protected, the impact caused by the blasting may cause cracks in the piers, leading to instability, compromising construction quality and potentially resulting in casualties among construction workers. Therefore, how to effectively reduce the impact of underwater blasting on the piers has become a pressing issue. Utility Model Content

[0003] Based on this, it is necessary to provide a bridge pier pile protection device that is resistant to underwater blasting impact, so as to solve the technical problem of the impact on the bridge pier pile caused by underwater blasting in the prior art.

[0004] To achieve the above-mentioned objectives, the present application provides a bridge pier pile protection device capable of resisting underwater blasting impact, the bridge pier pile protection device comprising:

[0005] The baffle is a cylindrical structure, which encloses a protective space. A cap is provided in the protective space, and a pier pile is provided on the cap. The baffle is formed by bonding a polyurea coating, a first layer of steel plate, an impact-resistant tile, a gradient foam aluminum, a stainless steel honeycomb plate layer, and a second layer of steel plate in sequence from the outside to the inside; and

[0006] A plurality of support rods are arranged between the baffle and the pedestal, the plurality of support rods are evenly distributed along the circumferential edge of the pedestal, and two ends of the support rods are respectively connected to the pedestal and the baffle.

[0007] Optionally, the cross section of the cap is rectangular, and the cap, the pier piles and the baffle are coaxially arranged.

[0008] Optionally, the corner of the platform abuts against the inner surface of the baffle.

[0009] Optionally, the top surface of the support platform and the top surface of the baffle are at the same horizontal height, and the bottom surface of the support platform and the bottom surface of the baffle are at the same horizontal height.

[0010] Optionally, the materials of the first steel plate and the second steel plate are both low yield strength steel.

[0011] Optionally, the polyurea coating has a thickness of 4 mm to 6 mm.

[0012] Optionally, the material of the impact-resistant tile is rubber.

[0013] Optionally, four support rods are provided, and the four support rods are respectively provided on four side surfaces of the platform.

[0014] Optionally, the support rod is made of low yield strength steel.

[0015] Optionally, the support rod and the baffle are welded together, and the support rod and the base are connected together by a bolt structure.

[0016] The beneficial effects of the underwater blast-resistant pier pile protection device provided by the present application are as follows: compared with the prior art, the pier pile protection device of the present application includes a baffle and multiple support rods, a pedestal and pier piles are arranged inside the baffle, multiple support rods are arranged between the baffle and the pedestal, and the two ends of the support rods are respectively connected to the pedestal and the baffle, and the baffle has a cylindrical structure. When resisting water flow, the circular structure of the baffle can reduce stress concentration and evenly transfer the force to various parts of the internal pedestal. At the same time, the streamlined cylinder can effectively reduce the resistance of water flow and wind force; the baffle is composed of a polyurea coating, a first layer of steel plate, an impact-resistant tile, a gradient foam aluminum, a stainless steel honeycomb plate layer and a second layer of steel plate bonded in sequence from the outside to the inside, and adopts a porous elastic structure, which can reduce the impact of blasting vibration on the pier. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic diagram of the top view of the pier pile protection device provided in an embodiment of the present application;

[0019] Figure 2 A schematic structural diagram of a baffle of a pier pile protection device provided in an embodiment of the present application;

[0020] Figure 3 A schematic structural diagram of the anti-impact tile of the baffle of the pier pile protection device provided in an embodiment of the present application;

[0021] Figure 4 Schematic diagram of the connection relationship between the second layer of steel plate, support rods and capping platform of the pier pile protection device provided in an embodiment of the present application.

[0022] Description of reference numerals:

[0023] 1. Baffle; 110, polyurea coating; 120, first layer of steel plate; 130, impact-resistant tile; 140, gradient foam aluminum; 150, stainless steel honeycomb panel layer; 160, second layer of steel plate; 2. Support rod; 3. Cap; 4. Pier pile. DETAILED DESCRIPTION

[0024] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0027] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0028] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0030] The embodiment of the present application provides a bridge pier pile protection device that is resistant to underwater blasting impact. Figures 1 to 4 The pier pile protection device includes a baffle 1 and multiple support rods 2. The baffle 1 is a cylindrical structure. The baffle 1 encloses a protection space. A pedestal 3 is provided in the protection space, and a pier pile 4 is provided on the pedestal 3. The baffle 1 is made of a polyurea coating 110, a first layer of steel plate 120, an impact-resistant tile 130, a gradient foam aluminum 140, a stainless steel honeycomb panel layer 150 and a second layer of steel plate 160 bonded in sequence from the outside to the inside; multiple support rods 2 are provided between the baffle 1 and the pedestal 3, and the multiple support rods 2 are evenly distributed along the circumferential edge of the pedestal 3. The two ends of the support rods 2 are respectively connected to the pedestal 3 and the baffle 1.

[0031] Specifically, the polyurea coating 110 is an emerging pollution-free, solvent-free green coating with strong corrosion resistance, strong mechanical strength, and strong deformation resistance.

[0032] Specifically, the impact-resistant tile 130 is a flexible covering layer used for structural explosion protection. It was developed based on the anechoic tiles of submarines. 80% of the volume of the impact-resistant tile 130 is a cavity. Based on the principle of impedance mismatch between steel, air and water, it isolates most of the energy of underwater shock waves, forcing the energy to not directly act on the surface of the bridge pier, thereby playing a role in protecting the bridge pier.

[0033] Specifically, the gradient foam aluminum 140 has the characteristics of being lightweight, having strong buffering and energy absorption, being corrosion-resistant, and being easy to process. It is a porous energy-absorbing structure that can reduce the impact of blasting vibration on bridge piers.

[0034] Specifically, the stainless steel honeycomb panel layer 150 can effectively absorb energy, has strong deformation resistance, and has good corrosion resistance.

[0035] In the embodiment of the present application, the pier pile protection device includes a baffle 1 and a plurality of support rods 2. A pedestal 3 and a pier pile 4 are provided in the baffle 1. The plurality of support rods 2 are provided between the baffle 1 and the pedestal 3. The two ends of the support rods 2 are respectively connected to the pedestal 3 and the baffle 1. The baffle 1 has a cylindrical structure. When resisting water flow, the circular structure of the baffle 1 can reduce the stress concentration phenomenon and evenly transfer the force received to various parts of the internal pedestal 3. At the same time, the streamlined cylinder can effectively reduce the resistance of water flow and wind force. The baffle 1 is composed of a polyurea coating 110, a first layer of steel plate 120, an impact-resistant tile 130, a gradient foam aluminum 140, a stainless steel honeycomb panel layer 150 and a second layer of steel plate 160 bonded in sequence from the outside to the inside. It adopts a porous elastic structure, which can reduce the impact of blasting vibration on the pier.

[0036] Preferably, the brand of glue used for bonding between the layers of the baffle 1 is Huaqi, model number is QIS-5705.

[0037] In one embodiment, see Figure 1 The cross section of the pedestal 3 is rectangular, and the pedestal 3, the pier pile 4 and the baffle 1 are coaxially arranged, so that the stress transferred between the pedestal 3 and the baffle 1 is relatively uniform.

[0038] In one embodiment, see Figure 1 The corner of the support platform 3 abuts against the inner surface of the baffle 1, increasing the stress transfer area between the support platform 3 and the baffle 1.

[0039] In one embodiment, the top surface of the support platform 3 and the top surface of the baffle 1 are at the same level, and the bottom surface of the support platform 3 and the bottom surface of the baffle 1 are at the same level.

[0040] In one embodiment, the materials of the first layer of steel plate 120 and the second layer of steel plate 160 are both low yield strength steel, and the yield strength of the first layer of steel plate 120 and the second layer of steel plate 160 are both less than 176 MPa. The first layer of steel plate 120 and the second layer of steel plate 160 have excellent deep drawing performance and deep drawing performance, and excellent seismic resistance.

[0041] In one embodiment, the polyurea coating 110 has a thickness of 4 mm to 6 mm.

[0042] In one embodiment, the material of the impact-resistant shoe 130 is rubber, preferably EPDM rubber, which is a synthetic rubber with excellent impact resistance.

[0043] In one embodiment, see Figure 1There are four support rods 2, and the four support rods 2 are respectively arranged on the four sides of the platform 3.

[0044] In one embodiment, the support rod 2 is made of low-yield strength steel, so that the support rod 2 has excellent deep drawing performance and deep drawing performance, and excellent anti-seismic performance.

[0045] In one embodiment, the support rod 2 is welded to the baffle 1 to enhance the structural stability; the support rod 2 is connected to the base 3 by a bolt structure, which is convenient for installation and disassembly, and convenient for later replacement and maintenance.

[0046] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A bridge pier pile protection device for underwater blasting resistance, characterized in that: include: The baffle is a cylindrical structure, the baffle encloses a protective space, a cap is provided in the protective space, and a pier pile is provided on the cap. The baffle is formed from the outside to the inside by bonding a polyurea coating, a first layer of steel plate, an impact-resistant tile, a gradient foam aluminum, a stainless steel honeycomb plate layer, and a second layer of steel plate in sequence; and A plurality of support rods are arranged between the baffle and the support platform, the plurality of support rods are evenly distributed along the circumferential edge of the support platform, and the two ends of the support rods are respectively connected to the support platform and the baffle.

2. The underwater blast-resistant bridge pier pile protection device according to claim 1 is characterized in that: The cross section of the cap is rectangular, and the cap, the pier pile and the baffle are coaxially arranged.

3. The underwater blast-resistant bridge pier pile protection device according to claim 2, characterized in that: The corner of the support platform abuts against the inner surface of the baffle.

4. The underwater blast-resistant bridge pier pile protection device according to claim 1 is characterized in that: The top surface of the support platform and the top surface of the baffle are at the same horizontal height, and the bottom surface of the support platform and the bottom surface of the baffle are at the same horizontal height.

5. The underwater blast-resistant bridge pier pile protection device according to any one of claims 1 to 4, characterized in that: The materials of the first steel plate and the second steel plate are both low yield strength steel.

6. The underwater blast-resistant bridge pier pile protection device according to any one of claims 1 to 4, characterized in that: The thickness of the polyurea coating is 4 mm to 6 mm.

7. The underwater blast-resistant bridge pier pile protection device according to any one of claims 1 to 4, characterized in that: The material of the impact-resistant tile is rubber.

8. The underwater blast-resistant bridge pier pile protection device according to any one of claims 2 to 4, characterized in that: There are four support rods, which are respectively arranged on the four side surfaces of the support platform.

9. The underwater blast-resistant bridge pier pile protection device according to any one of claims 1 to 4, characterized in that: The support rod is made of low yield strength steel.

10. The underwater blast-resistant bridge pier pile protection device according to any one of claims 1 to 4, characterized in that: The support rod and the baffle are welded together, and the support rod and the support platform are connected together through a bolt structure.

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