Precast assembled roadside abutment and retaining wall structures and their construction methods

Abstract

This invention discloses a prefabricated assembled roadside abutment and retaining wall structure and its construction method, relating to the field of road construction technology. The prefabricated assembled roadside abutment and retaining wall structure includes: a bridge abutment foundation having a first main reinforcement extending vertically, the upper end of which is connected to a sleeve; and a prefabricated retaining wall component having a second main reinforcement extending vertically, the second main reinforcement extending beyond the bottom surface of the prefabricated retaining wall component and inserted into the sleeve of the bridge abutment foundation, the sleeve and the second main reinforcement being connected by grouting. This application can solve the problems of difficult construction organization, large land occupation, increased bridge span, and increased project investment associated with technical solutions that separately design and construct bridge abutments and roadside retaining wall structures for bridges crossing existing roads.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, and in particular to a prefabricated assembled roadside abutment and retaining wall structure and its construction method. Background Technology

[0002] Currently, the construction of expressways is progressing rapidly. Expressways often need to cross existing roads of various grades, such as expressways, national highways, and provincial highways. When crossing existing roads, large-span bridge structures are usually used to cross the road in one span. Therefore, it is necessary to set up bridge pier foundations on both sides of the road being constructed. In some cases, there are various pipelines and other restrictive factors on both sides of the road, which causes the bridge foundations to be close to the edge of the existing road in order to avoid various restrictive factors. Therefore, it is necessary to ensure the safety of the existing road while setting up retaining walls to support and protect the existing road. Summary of the Invention

[0003] The applicant found that current bridge abutment foundations and roadside retaining walls across existing roads are generally designed and implemented separately, without affecting each other, considering that different structures participate in the load-bearing process. However, bridge abutment foundation design needs to consider the impact of abutment excavation on the roadside retaining walls during later construction, taking into account the construction sequence of the retaining walls and abutments, and conducting detailed construction organization design. Furthermore, existing roads require closed management, and construction occupies significant land resources. Current technical solutions necessitate increasing the bridge span, leading to increased project investment and wasting more space, resources, and capital compared to integrated design and construction. This contradicts the current green and economical concept, therefore, optimization is needed in all aspects.

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a prefabricated assembled roadside abutment and retaining wall structure and its construction method, which can solve the problems of difficult construction organization, large land occupation, increased bridge span and increased project investment required by the technical solution of designing and constructing the bridge abutment and roadside retaining wall structure separately when the bridge crosses the existing road.

[0005] The specific technical solution of this invention is as follows:

[0006] A prefabricated roadside abutment and retaining wall structure, the prefabricated roadside abutment and retaining wall structure comprising:

[0007] A bridge abutment foundation has a first main reinforcement extending in a vertical direction, and the upper end of the first main reinforcement is connected to a sleeve.

[0008] A precast retaining wall component has a second main reinforcement extending vertically, the second main reinforcement extending out of the bottom surface of the precast retaining wall component and inserted into the sleeve of the bridge abutment foundation, the sleeve and the second main reinforcement being connected by grouting.

[0009] Preferably, the bridge abutment foundation is made of concrete, and the sleeve is cast in the concrete of the bridge abutment foundation, with the upper end face of the sleeve being lower than the top surface of the bridge abutment foundation.

[0010] Preferably, the top surface of the bridge abutment foundation is roughened, the bottom surface of the precast retaining wall component is roughened, and the top surface of the bridge abutment foundation and the bottom surface of the precast retaining wall component are connected by grouting.

[0011] Preferably, the prefabricated roadside abutment and retaining wall structure further includes:

[0012] A grouting pipe with one end connected to the inside of the sleeve, and the other end of the grouting pipe extending out of the top surface of the bridge abutment foundation; a grout outlet pipe with one end connected to the inside of the sleeve, and the other end of the grout outlet pipe extending out of the top surface of the bridge abutment foundation.

[0013] Preferably, one end of the grouting pipe is connected to the lower end of the sleeve, and one end of the grout outlet pipe is connected to the upper end of the sleeve.

[0014] Preferably, there are multiple first main reinforcement bars, which are arranged along the extension direction of the precast retaining wall component; there are multiple second main reinforcement bars, and the positions of the multiple second main reinforcement bars correspond to the positions of the multiple first main reinforcement bars.

[0015] A construction method for a prefabricated roadside abutment and retaining wall structure, the construction method comprising:

[0016] Temporary support was provided for the existing road that was being crossed;

[0017] The steel bars in the bridge abutment foundation are tied together, wherein the steel bars include a first main bar extending in a vertical direction, and a sleeve is connected to the upper end of the first main bar.

[0018] After the steel bars and sleeves in the bridge abutment foundation are all connected, concrete is poured into the bridge abutment.

[0019] After the concrete reaches the required strength, the precast retaining wall component is installed in conjunction with the sleeve on the bridge abutment foundation. The precast retaining wall component has a second main reinforcement extending vertically, which extends out of the bottom surface of the precast retaining wall component. The second main reinforcement extending out of the bottom surface of the precast retaining wall component is inserted into the sleeve of the bridge abutment foundation by means of hoisting construction.

[0020] After the second main reinforcement bar is inserted into the sleeve of the bridge abutment foundation, the sleeve is filled with grouting material.

[0021] Once the grouting material inside the sleeve reaches the required strength, the temporary supports of the existing road are removed.

[0022] Preferably, after the concrete reaches the required strength, the top surface of the bridge abutment foundation is roughened, the bottom surface of the precast retaining wall component is roughened, and then the second main reinforcement extending from the bottom surface of the precast retaining wall component is inserted into the sleeve of the bridge abutment foundation.

[0023] Preferably, after the second main reinforcement bar is inserted into the sleeve of the bridge abutment foundation, grouting is applied between the top surface of the bridge abutment foundation and the bottom surface of the precast retaining wall component to connect them.

[0024] Preferably, the construction method for the prefabricated assembled roadside abutment and retaining wall structure further includes:

[0025] Before pouring concrete for the bridge abutment, connect one end of the sleeve to the grouting pipe and connect the sleeve to one end of the grout outlet pipe.

[0026] In the step of pouring concrete for the bridge abutment, one end of the grouting pipe extends out of the top surface of the bridge abutment foundation, and the other end of the grout outlet pipe extends out of the top surface of the bridge abutment foundation.

[0027] In the step of filling the sleeve with grouting material, high-pressure cement grout is injected into the grouting pipe, and the grouting pipe is sealed after the cement grout flows out from the grout outlet pipe.

[0028] The technical solution of the present invention has the following significant beneficial effects:

[0029] 1. Precast retaining wall components can be prefabricated in factories or prefabrication plants, resulting in high construction precision and improved component quality;

[0030] 2. Prefabricated assembly construction can minimize on-site construction work by workers, increase on-site safety, and thus improve the professionalism of the entire construction process;

[0031] 3. The precast retaining wall components are directly installed with the sleeves on the bridge abutment foundation by hoisting, which eliminates the process of erecting and casting precast retaining wall components on site, thus effectively shortening the construction period;

[0032] 4. This application can optimize the problems of separate design and construction of bridge abutments and roadside retaining wall structures that cross existing roads, which increases the difficulty of construction organization, occupies more land resources, increases bridge span, and increases project investment. On the basis of optimizing space, resources, and investment, it meets functional requirements.

[0033] Specific embodiments of the invention are disclosed in detail below with reference to the description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0034] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0035] Figure 1 This is a schematic diagram illustrating the integrated installation of the retaining wall structure and the bridge abutment foundation when a bridge crosses an existing road, according to an embodiment of the present invention.

[0036] Figure 2 This is a cross-sectional schematic diagram of the prefabricated assembled roadside abutment and retaining wall structure in an embodiment of the present invention.

[0037] The reference numerals in the above figures are as follows:

[0038] 1. Bridge abutment foundation; 11. First main reinforcement; 12. Sleeve; 13. Abutment main reinforcement; 2. Precast retaining wall component; 21. Second main reinforcement; 3. Grouting pipe; 4. Grout outlet pipe; 100. Existing road; 200. Pipeline; 300. Bridge pile foundation. Detailed Implementation

[0039] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] Figure 1 This is a schematic diagram illustrating the integrated installation of the retaining wall structure and the bridge abutment foundation when a bridge crosses an existing road, as described in an embodiment of the present invention. Figure 1 As shown, a specific scenario is as follows: For example, when using a large-span bridge structure to cross a road in a single span, bridge abutment foundations 1 need to be set up on both sides of the constructed road. Various pipelines 200 and other restrictive factors often exist on both sides of some roads. Figure 1 As shown, the bridge abutment foundation 1 is located close to the edge of the existing road to avoid various limiting factors. The bridge abutment foundation 1 has a bridge pile foundation connected to it. Therefore, the design of the bridge abutment foundation 1 must consider the impact of the abutment excavation on the roadside retaining wall components during later construction.

[0042] To address the challenges of separate design and construction of bridge abutments and roadside retaining wall structures for bridges spanning existing roads—namely, the high difficulty in construction organization, significant land occupation, increased bridge span, and higher project investment—this application proposes a prefabricated, assembled roadside abutment and retaining wall structure. Figure 2 This is a cross-sectional schematic diagram of the prefabricated assembled roadside abutment and retaining wall structure in an embodiment of the present invention, as shown below. Figure 1 and Figure 2 As shown, the prefabricated roadside abutment and retaining wall structure may include: a bridge abutment foundation 1, which has a first main reinforcement 11 extending in a vertical direction, and the upper end of the first main reinforcement 11 is connected to a sleeve 12; a prefabricated retaining wall component 2, which has a second main reinforcement 21 extending in a vertical direction, the second main reinforcement 21 extending out of the bottom surface of the prefabricated retaining wall component 2 and inserted into the sleeve 12 of the bridge abutment foundation 1, and the sleeve 12 and the second main reinforcement 21 are connected by grouting.

[0043] like Figure 2 As shown, the bridge abutment foundation 1 extends horizontally. The bridge abutment foundation 1 contains reinforcing bars that meet the strength requirements of the bridge abutment foundation 1. The binding of these reinforcing bars can be determined according to actual conditions and design parameters, and is not limited in this application. For example, the aforementioned reinforcing bars may include the main reinforcing bars 13, which can extend horizontally. Among these reinforcing bars are first main reinforcing bars 11 extending vertically, which are used to connect with the second main reinforcing bars 21 in the precast retaining wall component 2. To ensure a firm, convenient, efficient, and quick connection between the first main reinforcing bars 11 and the second main reinforcing bars 21, a sleeve 12 can be connected to the upper end of the first main reinforcing bar 11. This sleeve 12 is a grouting sleeve 12. The sleeve 12 and the second main reinforcing bar 21 are connected by grouting, thereby achieving the connection between the first main reinforcing bars 11 and the second main reinforcing bars 21.

[0044] The bridge abutment foundation 1 can be made of concrete. The sleeve 12 is cast in the concrete of the bridge abutment foundation 1. The upper end of the sleeve 12 is lower than the top surface of the bridge abutment foundation 1, so as to ensure that the precast retaining wall component 2 can be directly installed on the top surface of the bridge abutment foundation 1.

[0045] In order to improve the connection strength after the bridge abutment foundation 1 and the precast retaining wall component 2 are installed in an integrated manner, there can be multiple first main reinforcement bars 11, and the multiple first main reinforcement bars 11 are arranged along the extension direction of the precast retaining wall component 2.

[0046] like Figure 2As shown, the precast retaining wall component 2 can be prefabricated in the factory. When it needs to be integrated with the bridge abutment foundation 1, the precast retaining wall component 2 is transported to the completed bridge abutment foundation 1. The precast retaining wall component 2 contains reinforcing bars that meet the strength requirements of the precast retaining wall component 2. The binding of these reinforcing bars can be determined according to the actual situation and design parameters, and no limitations are made in this application. Among them, the reinforcing bars include a second main bar 21 extending in the vertical direction, which extends out of the bottom surface of the precast retaining wall component 2. After the bridge abutment foundation 1 and the precast retaining wall component 2 are integrated and installed together, the second main bar 21 is inserted into the sleeve 12 of the bridge abutment foundation 1, and the sleeve 12 and the second main bar 21 are connected by grouting. The length of the second main bar 21 inserted into the sleeve 12 of the bridge abutment foundation 1 needs to meet the specification requirements to ensure the connection strength between the first main bar 11 and the second main bar 21.

[0047] Similarly, the precast retaining wall component 2 can extend horizontally. There can be multiple second main reinforcement bars 21, and the positions of the multiple second main reinforcement bars 21 correspond to the positions of the multiple first main reinforcement bars 11, that is, the multiple second main reinforcement bars 21 are arranged horizontally.

[0048] To ensure a more robust and stronger connection between the bridge abutment foundation 1 and the precast retaining wall component 2 after their integrated installation, the top surface of the bridge abutment foundation 1 and the bottom surface of the precast retaining wall component 2 are roughened. The top surface of the bridge abutment foundation 1 and the bottom surface of the precast retaining wall component 2 are connected by grouting.

[0049] To enable grouting of the sleeve 12, the prefabricated roadside abutment and retaining wall structure may include: a grouting pipe 3 with one end connected to the inside of the sleeve 12, and the other end of the grouting pipe 3 extending out of the top surface of the bridge abutment foundation 1; and a grout outlet pipe 4 with one end connected to the inside of the sleeve 12, and the other end of the grout outlet pipe 4 extending out of the top surface of the bridge abutment foundation 1. Furthermore, one end of the grouting pipe 3 is connected to the lower end of the sleeve 12, and one end of the grout outlet pipe 4 is connected to the upper end of the sleeve. This ensures that during grouting of the sleeve 12, cement grout can fill the sleeve 12 sequentially from bottom to top, completely displacing any air inside the sleeve 12. When grouting of the sleeve 12 is required, high-pressure cement grout can be injected into the grouting pipe 3, and the grout outlet pipe 4 can be sealed after it flows out. Generally, one end of the grouting pipe 3 is connected to one end inside the sleeve 12, and one end of the grout outlet pipe 4 is connected to the other end inside the sleeve 12. In this way, the cement grout injected into the grouting pipe 3 can fill all the empty space inside the sleeve 12 before flowing out from the grout outlet pipe 4, ensuring sufficient grouting inside the sleeve 12, thereby improving the connection strength between the first main reinforcement 11 and the second main reinforcement 21. For example, one end of the grouting pipe 3 is connected to the lower end of the sleeve 12, and one end of the grout outlet pipe 4 is connected to the upper end of the sleeve 12.

[0050] This application also proposes a construction method for a prefabricated roadside abutment and retaining wall structure, which may include the following steps:

[0051] Temporary support was provided for the existing road that was being crossed.

[0052] The steel bars in the bridge abutment foundation 1 are tied together, including a first main bar 11 extending in the vertical direction, and a sleeve 12 is connected to the upper end of the first main bar 11.

[0053] As a feasible option, before pouring concrete for the bridge abutment, one end of the sleeve 12 is connected to the grouting pipe 3, and one end of the sleeve 12 is connected to the grout outlet pipe 4, so that grouting can be performed on the sleeve 12 later through the grouting pipe 3 and the grout outlet pipe 4.

[0054] After the steel bars and sleeves 12 in the bridge abutment foundation 1 are connected, concrete is poured for the bridge abutment. During the concrete pouring process, the other end of the grouting pipe 3 extends out of the top surface of the bridge abutment foundation 1, and the other end of the grout outlet pipe 4 extends out of the top surface of the bridge abutment foundation 1. This ensures that after the concrete has solidified, grout can be injected into the sleeves 12 through the other end of the grouting pipe 3, and air in the sleeves 12 can be discharged through the grout outlet pipe 4.

[0055] After the concrete reaches the required strength, the precast retaining wall component 2 is installed in conjunction with the sleeve 12 on the bridge abutment foundation 1. The precast retaining wall component 2 has a second main reinforcement 21 extending vertically, protruding from the bottom surface of the precast retaining wall component 2. The second main reinforcement 21 can be inserted into the sleeve 12 of the bridge abutment foundation 1 through hoisting. Alternatively, after the concrete reaches the required strength, the top surface of the bridge abutment foundation 1 and the bottom surface of the precast retaining wall component 2 are roughened. Then, the second main reinforcement 21 protruding from the bottom surface of the precast retaining wall component 2 is inserted into the sleeve 12 of the bridge abutment foundation 1. After the second main reinforcement 21 is inserted into the sleeve 12 of the bridge abutment foundation 1, grout is applied between the top surface of the bridge abutment foundation 1 and the bottom surface of the precast retaining wall component 2 to connect them.

[0056] After the second main reinforcement 21 is inserted into the sleeve 12 of the bridge abutment foundation 1, the sleeve 12 is filled with grouting material. Specifically, high-pressure cement grout can be injected into the grouting pipe 3, and after the cement grout flows out from the grout outlet pipe 4, the grout outlet pipe 4 is sealed, so that the sleeve 12 remains full of cement grout.

[0057] Once the grouting material inside sleeve 12 has reached the required strength, the temporary supports of the existing road will be removed.

[0058] This application also considers the bridge abutment setting, integrating the precast retaining wall component 2 with the bridge abutment foundation 1. This not only protects the existing road but also does not affect the setting of the bridge abutment foundation 1. Furthermore, the use of precast assembly construction methods for the precast retaining wall component 2 reduces the construction period and the time required for controlling the existing road. In addition, the precast assembled roadside abutment and retaining wall structure and its construction method in this application effectively utilize existing space, simultaneously meet different functional requirements, and reduce the time required for controlling and closing the existing road, achieving two goals at once and demonstrating strong practical effectiveness.

[0059] The prefabricated assembled roadside abutment and retaining wall structure and its construction method in this application have the following advantages: 1. The prefabricated retaining wall component 2 can be prefabricated in a factory or prefabrication plant, resulting in high construction precision and improved component quality; 2. Prefabricated assembly construction can minimize on-site construction by workers, increase on-site safety, and thus improve the professionalism of the entire construction process; 3. By hoisting the prefabricated retaining wall component 2 directly to the sleeve 12 on the bridge abutment foundation 1, the process of on-site formwork erection and casting of the prefabricated retaining wall component 2 is eliminated, thus effectively shortening the construction period; 4. This application can optimize the problems of separate design and construction of bridge abutments and roadside retaining wall structures crossing existing roads, which increases the difficulty of construction organization, occupies more land resources, increases bridge span, and increases project investment. It meets functional requirements while optimizing space, resources, and investment.

[0060] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0061] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A construction method for a prefabricated assembled roadside abutment and retaining wall structure, characterized in that, The prefabricated roadside abutment and retaining wall structure includes: A bridge abutment foundation has a first main reinforcement extending in a vertical direction, the upper end of the first main reinforcement being connected to a sleeve, the bridge abutment foundation being cast in concrete, the sleeve being cast in the concrete of the bridge abutment foundation, and the upper end face of the sleeve being lower than the top surface of the bridge abutment foundation. A precast retaining wall component has a second main reinforcement extending vertically. The second main reinforcement extends out of the bottom surface of the precast retaining wall component and is inserted into the sleeve of the bridge abutment foundation. The sleeve and the second main reinforcement are connected by grouting. The top surface of the bridge abutment foundation and the bottom surface of the precast retaining wall component are connected by grouting. A grouting pipe with one end connected to the inside of the sleeve, and the other end of the grouting pipe extending out of the top surface of the bridge abutment foundation; a grout outlet pipe with one end connected to the inside of the sleeve, and the other end of the grout outlet pipe extending out of the top surface of the bridge abutment foundation. The construction method for the prefabricated assembled roadside abutment and retaining wall structure includes: Temporary support was provided for the existing road that was being crossed; The steel bars in the bridge abutment foundation are tied together, wherein the steel bars include a first main bar extending in a vertical direction, and a sleeve is connected to the upper end of the first main bar. Before pouring concrete for the bridge abutment, connect one end of the sleeve to the grouting pipe and connect the sleeve to the grout outlet pipe. After the steel bars and sleeves in the bridge abutment foundation are connected, concrete is poured into the bridge abutment, including: the other end of the grouting pipe extends out of the top surface of the bridge abutment foundation, and the other end of the grout outlet pipe extends out of the top surface of the bridge abutment foundation. After the concrete reaches the required strength, the precast retaining wall component is installed in conjunction with the sleeve on the bridge abutment foundation. The precast retaining wall component has a second main reinforcement extending vertically, which extends out of the bottom surface of the precast retaining wall component. The second main reinforcement extending out of the bottom surface of the precast retaining wall component is inserted into the sleeve of the bridge abutment foundation by means of hoisting construction. After the second main reinforcement is inserted into the sleeve of the bridge abutment foundation, the sleeve is filled with grouting material, including: injecting high-pressure cement grout into the grouting pipe, and sealing the grouting pipe after the cement grout flows out from the grout outlet pipe; Once the grouting material inside the sleeve reaches the required strength, the temporary supports of the existing road are removed.

2. The construction method for the prefabricated assembled roadside abutment and retaining wall structure according to claim 1, characterized in that, The top surface of the bridge abutment foundation is roughened, and the bottom surface of the precast retaining wall component is roughened.

3. The construction method for the prefabricated assembled roadside abutment and retaining wall structure according to claim 1, characterized in that, One end of the grouting pipe is connected to the lower end of the sleeve, and one end of the grout outlet pipe is connected to the upper end of the sleeve.

4. The construction method of the prefabricated assembled roadside abutment and retaining wall structure according to claim 1, characterized in that, There are multiple first main reinforcement bars, which are arranged along the extension direction of the precast retaining wall component; there are multiple second main reinforcement bars, and the positions of the multiple second main reinforcement bars correspond to the positions of the multiple first main reinforcement bars.

5. The construction method of the prefabricated assembled roadside abutment and retaining wall structure according to claim 1, characterized in that, After the concrete reaches the required strength, the top surface of the bridge abutment foundation is roughened, and the bottom surface of the precast retaining wall component is roughened. Then, the second main reinforcement extending from the bottom surface of the precast retaining wall component is inserted into the sleeve of the bridge abutment foundation.

6. The construction method for the prefabricated assembled roadside abutment and retaining wall structure according to claim 5, characterized in that, After the second main reinforcement bar is inserted into the sleeve of the bridge abutment foundation, grout is applied between the top surface of the bridge abutment foundation and the bottom surface of the precast retaining wall component to connect them.

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