Assembly type abutment structure suitable for complex terrain

Abstract

This utility model relates to the field of prefabricated bridge abutment technology, specifically to a prefabricated bridge abutment structure suitable for complex terrain. It includes a bridge abutment body, with a bridge abutment foundation on the bottom surface of the abutment body. Installation grooves are formed at the four corners of the top of the bridge abutment foundation, and pile foundations are installed inside the installation grooves. Fixing grooves are formed on the outer walls of the pile foundations, and fixing components are installed inside the fixing grooves. Embedded components are installed below the pile foundations. A base plate is fixedly installed at the center of the bottom surface of the bridge abutment foundation. Four sets of adjustment grooves are symmetrically formed on the bottom surface of the base plate, and four sets of compensation mechanisms are installed below the base plate. This utility model, through the establishment of compensation mechanisms, can provide support between the bridge abutment foundation and steep slopes or side slopes, thus adapting to different terrains. In complex terrains such as steep slopes and uneven soil strata, it can effectively prevent structural tilting or instability caused by the terrain.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated bridge abutment technology, specifically to a prefabricated bridge abutment structure suitable for complex terrain. Background Technology

[0002] In the bridge construction industry, bridge abutments are key structures connecting bridges and embankments. Their design and construction quality directly affect the overall safety and service life of bridges. In recent years, as transportation infrastructure construction has continued to extend to complex terrain areas such as mountains, canyons, and plateaus, traditional bridge abutment structures and construction methods have faced many challenges, and innovative technologies are urgently needed to meet engineering requirements.

[0003] Among related technologies, prefabricated bridge abutment technology has been widely used in bridge construction in conventional terrain. Its construction mode of prefabricating bridge abutment components in the factory and assembling them on site effectively shortens the construction period and reduces environmental pollution caused by wet operations on site.

[0004] However, existing prefabricated bridge abutment technology has many limitations when facing complex terrain. In terms of structural design, traditional prefabricated bridge abutments are mostly standardized, fixed-size components, which are difficult to match irregular terrain contours. Under complex foundation conditions, existing adjustment technology is difficult to achieve precise and efficient adaptation and adjustment. Secondly, the connection method of traditional prefabricated bridge abutments has the risk of connection failure in environments such as steep slopes.

[0005] Therefore, a prefabricated bridge abutment structure suitable for complex terrain is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a prefabricated bridge abutment structure suitable for complex terrain. The bridge abutment foundation, through modular design, can precisely match complex terrain. The combination of adjustable pile foundations and wedge blocks enables the bridge abutment to adapt to slope changes. In complex terrains such as steep slopes and uneven soil strata, it effectively avoids structural tilting or instability caused by terrain.

[0007] To achieve the above objectives, the present invention provides the following technical solution: including a bridge abutment body, a bridge abutment foundation is provided on the bottom surface of the bridge abutment body, an installation groove is provided at each of the four corners of the top of the bridge abutment foundation, a pile foundation is provided inside the installation groove, a fixing groove is provided on the outer wall of the pile foundation, a fixing component is provided inside the fixing groove, an embedded component is provided below the pile foundation, and a base plate is fixedly provided in the center of the bottom surface of the bridge abutment foundation.

[0008] The base plate has four sets of adjustment slots symmetrically opened on its bottom surface. Four sets of compensation mechanisms are set below the base plate. The compensation mechanism includes adjustment slots, moving blocks, wedge blocks, and locking parts. The moving blocks are all located inside the adjustment slots. The bottom surface of the moving blocks and the wedge blocks are fixedly connected. Several locking parts are set on one outer wall of the wedge blocks.

[0009] Preferably, a limiting block is provided at the top of the pile foundation, a concave-convex locking block is provided on the outer wall of the pile foundation, and a locking block that fits the outer wall of the pile foundation is provided on the inner wall of the installation groove.

[0010] Preferably, the shape of the fixing groove is set as four I-shaped structures stacked from high to low, the fixing member is set as an I-shaped structure that matches the fixing groove, and a limit block is provided on one side of the outer wall of the fixing member.

[0011] Preferably, the embedded part has a cavity inside, and the inner wall of the embedded part has a locking block that fits with the outer wall of the pile foundation. The bottom surface of the embedded part is conical.

[0012] Preferably, hydraulic jacks are provided on the outside of the compensation mechanism, and the compensation mechanism is located below the adjustment groove.

[0013] Preferably, the inner wall of the adjusting groove is arc-shaped, the moving block is cylindrical, and the adjusting groove and the moving block mesh with each other.

[0014] Preferably, one side of the outer wall of the wedge block is set as an inclined surface, the locking member is fixedly set on the inclined surface of the wedge block, the other side of the outer wall of the locking member is set as a cone, and the locking member and the adjusting groove are parallel to each other in spatial position.

[0015] Compared with the prior art, this utility model provides a prefabricated bridge abutment structure suitable for complex terrain, which has the following advantages:

[0016] 1. By establishing fixed grooves and fasteners, the modular design of the bridge abutment foundation allows for easy adjustment of the pile foundation assembly depth, enabling the bridge abutment to adapt to slope changes under complex terrain conditions.

[0017] 2. By establishing a compensation mechanism, it can provide support between the bridge abutment foundation and the steep slope or side slope, thus adapting to different terrains. In complex terrains such as steep slopes and uneven rock and soil layers, it can effectively avoid structural tilting or instability caused by the terrain. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the prefabricated bridge abutment structure applicable to complex terrain according to this utility model;

[0019] Figure 2 This is a front structural diagram of the prefabricated bridge abutment structure of this utility model applicable to complex terrain.

[0020] Figure 3 This is a perspective view of the prefabricated bridge abutment structure pile foundation applicable to complex terrain according to this utility model;

[0021] Figure 4 This is an enlarged view of the prefabricated bridge abutment structure compensation mechanism applicable to complex terrain according to this utility model;

[0022] Figure 5 This is an enlarged view of the prefabricated bridge abutment structure installation groove applicable to complex terrain according to this utility model.

[0023] In the diagram: 1. Abutment body; 2. Abutment foundation; 21. Installation groove; 3. Pile foundation; 31. Fixing groove; 32. Fastener; 33. Embedded part; 4. Base plate; 41. Adjustment groove; 5. Compensation mechanism; 51. Moving block; 52. Wedge block; 53. Locking part. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example:

[0026] Please see Figure 1 - Figure 5 The prefabricated bridge abutment structure suitable for complex terrain in this embodiment includes a bridge abutment body 1, a bridge abutment foundation 2 is provided on the bottom surface of the bridge abutment body 1, an installation groove 21 is provided at each of the four corners of the top of the bridge abutment foundation 2, a pile foundation 3 is provided inside the installation groove 21, a fixing groove 31 is provided on the outer wall of the pile foundation 3, a fixing component 32 is provided inside the fixing groove 31, an embedded component 33 is provided below the pile foundation 3, and a base plate 4 is fixedly provided in the center of the bottom surface of the bridge abutment foundation 2.

[0027] The bottom surface of the base plate 4 is symmetrically provided with four sets of adjustment grooves 41. Four sets of compensation mechanisms 5 are provided below the base plate 4. The compensation mechanism 5 includes adjustment grooves 41, moving blocks 51, wedge blocks 52, and locking elements 53. The moving blocks 51 are all located inside the adjustment grooves 41. The bottom surface of the moving blocks 51 and the wedge blocks 52 are fixedly connected. Several locking elements 53 are provided on one outer wall of the wedge blocks 52.

[0028] Among them, the top of the pile foundation 3 is provided with a limiting block, the outer wall of the pile foundation 3 is provided with a concave and convex locking block, and the inner wall of the installation groove 21 is provided with a locking block that fits with the outer wall of the pile foundation 3; by setting up the pile foundation 3 and the installation groove 21, the pile foundation 3 can be easily assembled with the bridge abutment foundation 2, and the locking groove on the outer wall of the pile foundation 3 and the locking groove of the installation groove 21 can achieve a stable and anti-slip effect by interlocking with each other.

[0029] The fixing groove 31 is designed to be four I-shaped structures stacked from high to low, and the fixing member 32 is designed to be an I-shaped structure that matches the fixing groove 31. A limit block is provided on one side of the outer wall of the fixing member 32. By setting up the fixing groove 31 and the fixing member 32, the assembly depth of the pile foundation 3 can be easily adjusted. Under complex terrain conditions, the construction personnel can adjust the assembly depth of the pile foundation 3 relative to the bridge abutment foundation 2 according to the actual situation.

[0030] The embedded part 33 has a cavity inside, and the inner wall of the embedded part 33 is provided with a locking block that fits with the outer wall of the pile foundation 3. The bottom surface of the embedded part 33 is set as a cone. The establishment of the embedded part 33 makes it easier to position the pile foundation 3 and is applicable to a wider range of terrains. Before assembly, the embedded part 33 is buried in a pit according to the terrain conditions, which makes the positioning of the bridge abutment foundation 2 more accurate.

[0031] Hydraulic jacks are installed on the outside of the compensation mechanism 5, and the compensation mechanism 5 is located below the adjustment groove 41. With the establishment of the compensation mechanism 5, when there is a steep slope or side slope below the bridge abutment foundation 2, the hydraulic jacks can be used to move the compensation mechanism 5 to provide support between the bridge abutment foundation 2 and the steep slope or side slope, thus adapting to different terrains.

[0032] The inner wall of the adjusting groove 41 is set in an arc shape, and the moving block 51 is set in a cylindrical shape. The adjusting groove 41 and the moving block 51 mesh with each other. By setting the adjusting groove 41, it is easy to use with the moving block 51, so that the wedge block 52 can achieve the effect of linear movement without detaching from the base plate 4.

[0033] One side of the outer wall of the wedge block 52 is set as an inclined surface, and the locking member 53 is fixedly set on the inclined surface of the wedge block 52. The other side of the outer wall of the locking member 53 is set as a cone. The locking member 53 and the adjusting groove 41 are parallel to each other in spatial position. With the setting of the locking member 53, when the hydraulic jack pushes the wedge block 52, the wedge block 52 can move along the adjusting groove 41. When the inclined surface of the wedge block 52 gradually moves to the steep slope, the locking member 53 is subjected to force and inserts into the gap of the stratum, thereby fixing the wedge block 52 and making the supporting force of the compensation mechanism 5 more stable. In complex terrains such as steep slopes and uneven rock and soil strata, it can effectively avoid structural tilting or instability caused by the terrain.

[0034] The working principle of the above embodiments is as follows:

[0035] During use, before assembly, pits are first dug according to the terrain conditions to embed the pre-embedded parts 33, which facilitates more accurate positioning of the bridge abutment foundation 2. Then, after placing the bridge abutment body 1 and bridge abutment foundation 2 using hoisting equipment, the pile foundation 3 is embedded along the installation groove 21, assembling the pile foundation 3 with the bridge abutment foundation 2. The interlocking of the grooves on the outer wall of the pile foundation 3 and the grooves in the installation groove 21 achieves a stable and anti-slip effect. Construction personnel adjust the assembly depth of the pile foundation 3 relative to the bridge abutment foundation 2 according to the actual terrain conditions, and then fix the fastener 32 at the corresponding height. In the groove 31, the assembly depth of the pile foundation 3 can be easily adjusted. After the pile foundation 3 is fixed, the various compensation mechanisms 5 can be adjusted according to the actual situation such as steep slopes or side slopes below the bridge abutment foundation 2. The wedge block 52 is pushed by a hydraulic jack and moves along the adjustment groove 41. When the inclined surface of the wedge block 52 gradually moves to the steep slope, the locking part 53 is subjected to force and inserted into the gap of the stratum, thereby fixing the wedge block 52 and making the support force of the compensation mechanism 5 more stable. At the same time, it provides support force between the bridge abutment foundation 2 and the steep slope or side slope, thus adapting to different terrains.

[0036] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated bridge abutment structure suitable for complex terrain, characterized in that: The bridge abutment includes a bridge abutment body, a bridge abutment foundation is provided on the bottom surface of the bridge abutment body, an installation groove is provided at each of the four corners of the top of the bridge abutment foundation, a pile foundation is provided inside the installation groove, a fixing groove is provided on the outer wall of the pile foundation, a fixing component is provided inside the fixing groove, an embedded component is provided below the pile foundation, and a base plate is fixedly provided in the center of the bottom surface of the bridge abutment foundation. The base plate has four sets of adjustment slots symmetrically arranged on its bottom surface. Four sets of compensation mechanisms are arranged below the base plate. Each compensation mechanism includes the adjustment slot, a moving block, a wedge block, and a locking element. The moving blocks are all located inside the adjustment slots. The bottom surface of the moving blocks and the wedge blocks are fixedly connected. Several locking elements are arranged on one outer wall of the wedge block.

2. The prefabricated bridge abutment structure suitable for complex terrain according to claim 1, characterized in that: The top of the pile foundation is provided with a limiting block, the outer wall of the pile foundation is provided with a concave-convex locking block, and the inner wall of the mounting groove is provided with a locking block that fits with the outer wall of the pile foundation.

3. The prefabricated bridge abutment structure suitable for complex terrain according to claim 1, characterized in that: The shape of the fixing groove is set as four H-shaped structures stacked from high to low, and the fixing member is set as an H-shaped structure that matches the fixing groove. A limit block is provided on one side of the outer wall of the fixing member.

4. The prefabricated bridge abutment structure suitable for complex terrain according to claim 1, characterized in that: The embedded part has a cavity inside, and the inner wall of the embedded part has a locking block that fits with the outer wall of the pile foundation. The bottom surface of the embedded part is conical.

5. The prefabricated bridge abutment structure suitable for complex terrain according to claim 1, characterized in that: A hydraulic jack is provided on the outside of the compensation mechanism, and the compensation mechanism is located below the adjustment groove.

6. The prefabricated bridge abutment structure suitable for complex terrain according to claim 1, characterized in that: The inner wall of the adjusting groove is arc-shaped, the moving block is cylindrical, and the adjusting groove and the moving block mesh with each other.

7. The prefabricated bridge abutment structure suitable for complex terrain according to claim 1, characterized in that: One side of the wedge block has an outer wall that is inclined, and the locking member is fixedly mounted on the inclined surface of the wedge block. The other side of the locking member has an outer wall that is tapered, and the locking member and the adjusting groove are parallel to each other in space.

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