Rapidly installed steel retaining wall adjacent to railway operating line

Abstract

The application relates to the technical field of pile foundation construction, in particular to a quick installation steel wall adjacent to a railway operating line. When the steel wall is used, the steel wall is used instead of a traditional reinforced concrete wall at a place where a pile hole needs to be excavated, specifically, a plurality of arc-shaped templates are spliced to form a wall module for standby, then the pile hole is excavated manually, the manual pile hole excavation has a smaller disturbance influence on the railway operating line, and along with the pile hole excavation, the wall module is gradually lowered, the wall module can first play a good supporting role on the pile hole, in addition, after the pile hole is excavated, a steel reinforcement cage is lowered in the steel wall, and concrete is poured to form a pile foundation, and the steel wall is not removed in the later period but is permanently fixed in the pile foundation, the pile foundation provided with the steel wall has a certain strength after pouring, the maintenance time can be reduced, and the construction period can be shortened.

Description

Technical Field

[0001] This application relates to the field of pile foundation construction technology, and in particular to a quick-installation steel retaining wall near an operational railway line. Background Technology

[0002] Traditional reinforced concrete retaining wall construction involves multiple steps, including excavation, rebar tying, formwork erection, concrete pouring, and curing. Each cycle from excavation to curing is lengthy, and low temperatures severely impact the strength development and construction quality of the concrete retaining wall, making normal construction impossible in winter. In other words, traditional reinforced concrete retaining walls suffer from complex construction, long cycle times, limited winter construction, and extended curing periods, making it difficult to meet the overall project schedule and the construction time window requirements of operating railway lines and adjacent operating lines. Furthermore, when constructing near operating lines, not only is the construction space limited, but the significant disturbance caused by large rotary drilling rigs and other construction equipment to the railway lines makes it unsuitable to use large construction equipment in areas near operating railway lines, further restricting the construction cycle.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0004] The purpose of this application is to provide a quick-installation steel retaining wall near an operational railway line to solve or alleviate the problems existing in the prior art.

[0005] To achieve the above objectives, this application provides the following technical solution: A quick-installation steel retaining wall adjacent to an operational railway line is disclosed. The steel retaining wall comprises multiple cylindrical retaining wall modules arranged vertically. Each retaining wall module is composed of multiple arc-shaped templates spliced ​​together. In the same ring of retaining wall modules, two adjacent arc-shaped templates are connected by bolts. The top of each retaining wall module is provided with multiple male connectors, and the bottom of each retaining wall module is provided with multiple female connectors. The male connectors are used to insert into and lock into the female connectors. The male connector assembly includes at least a male head and a locking mechanism. The upper part of the male head is a frustum portion and the lower part is a cylindrical portion, and the maximum axial dimension of the upper frustum portion is greater than the axial dimension of the cylindrical portion. The female head assembly includes at least one set of locking blocks and supports, wherein the locking blocks are movably installed in the supports, and the end of the locking blocks facing the male head is an inclined surface; As the pile hole is excavated, multiple retaining wall modules are connected one by one and lowered gradually. When two retaining wall modules are connected to each other, the male head component on one retaining wall module is inserted into the female head component of the other retaining wall module, so that the locking block is locked on the male head and triggers the locking mechanism to achieve mutual locking of the two retaining wall modules.

[0006] As described above, for the rapid installation of steel retaining walls adjacent to railway operating lines, preferably, protruding plates are provided at both the top and bottom of the curved template.

[0007] As described above, for the rapid installation of steel retaining wall near the railway operating line, preferably, a male head component is provided on the outer convex plate at the top of the arc-shaped template; an outer convex plate is provided at the bottom of the arc-shaped template, and two female head components are provided on the outer convex plate at the bottom of the arc-shaped template, that is, each male head component is provided with two female head components.

[0008] As described above, in the rapid installation of steel retaining wall near the railway operating line, preferably, a guide hole is provided in the support of the female head assembly, the locking block is guided in the guide hole, and a first spring is provided between the locking block and the support, with the first spring located in the guide hole.

[0009] As described above, the quick-installation steel retaining wall adjacent to the railway operating line preferably has an inner cavity provided in the conical part of the male head, and the locking mechanism includes two locking tongues, with the two locking tongues guided in the inner cavity.

[0010] As described above, in the quick-installation steel retaining wall adjacent to the railway operating line, preferably, a second spring is provided between the two locking tongues, which pushes the two locking tongues out from the inner cavity of the cone part, so that the locking tongues are locked above the support.

[0011] As described above, the quick-installation steel retaining wall near the railway operating line preferably has a through hole provided in the inner cavity near each locking tongue position, and a locking pin is guided in each through hole. When the locking pin is inserted into the inner cavity, it is used to lock the end of the locking tongue to restrict the movement of the locking tongue. When the locking pin is pulled out of the inner cavity, it is used to unlock the locking tongue, so that the locking tongue is pushed out of the inner cavity under the action of the second spring.

[0012] As described above, in the rapid installation of steel retaining wall adjacent to railway operating lines, preferably, the locking pin is connected to a lever via a connecting rod, one end of the connecting rod is hinged to the locking pin, the other end is hinged to the lever, and the lever is rotatably disposed in the male head.

[0013] As described above, in the rapid installation of steel retaining wall near the railway operating line, preferably, when the male head assembly is not inserted into the female head assembly, the lever extends out of the male head; when the male head assembly is inserted into the female head assembly and the locking block is locked below the cone portion, the locking block pushes the lever to rotate, and the lever pulls the locking pin to move through the connecting rod, so that the locking lock is withdrawn from the inner cavity to release the locking of the locking tongue.

[0014] In the aforementioned quick-installation steel retaining wall adjacent to an operating railway line, preferably, a clearance groove is provided inside the male head, and the lever, connecting rod, and locking pin are all located in the clearance groove of the male head.

[0015] Compared with the closest prior art, the technical solution of this application has the following beneficial effects: When using this steel retaining wall, it replaces the traditional reinforced concrete retaining wall in areas where pile holes need to be excavated. Specifically, multiple sections of arc-shaped templates are first assembled into retaining wall modules for later use. Then, pile holes are excavated manually, which minimizes disturbance to the railway operating line. As the pile holes are excavated, the retaining wall modules are gradually lowered. The retaining wall modules provide good support for the pile holes. After the pile holes are excavated, a reinforcing cage is placed inside the steel retaining wall, and concrete is poured to form the pile foundation. The steel retaining wall is not removed later but is permanently fixed in the pile foundation. The pile foundation with the steel retaining wall has a certain strength after pouring, which reduces curing time and helps to shorten the construction period.

[0016] As the excavation depth of the pile hole increases, multiple retaining wall modules are connected one by one to provide better support for the gradually deepening pile hole. When two retaining wall modules are connected, the male head component on one retaining wall module is inserted into the female head component of the other retaining wall module, so that the locking block passes over the truncated cone and is locked below the truncated cone, forming a primary lock. At the same time, the locking block will trigger the locking mechanism to form a secondary lock. That is, the male head component and the female head component in this application are firmly fixed together through double locking, which is conducive to the safe and effective use of the steel retaining wall and ensures the safety of pile hole excavation. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein: Figure 1 A cross-sectional view of a retaining wall module provided according to some embodiments of this application; Figure 2 A top view of a retaining wall module provided according to some embodiments of this application; Figure 3 This is a partially enlarged view of a limiting mechanism provided according to some embodiments of this application; Figure 4 This is a schematic diagram showing the interlocking of two wall-mounted modules according to some embodiments of this application; Figure 5 This is an enlarged schematic diagram showing the mutual insertion of a male connector assembly and a female connector assembly according to some embodiments of this application.

[0018] Explanation of reference numerals in the attached figures: 1. Wall protection module; 2. Conical part; 3. Column part; 4. Male head; 5. Limiting mechanism; 6. Third spring; 7. Overlapping rib; 8. Locking block; 9. First spring; 10. Support; 11. First clamping body; 12. Second clamping body; 13. Pull rope; 14. Locking tongue; 15. Second spring; 16. Locking pin; 17. Connecting rod; 18. Pulley. Detailed Implementation

[0019] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of interpretation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature represented or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0020] In the following description, the terms "first / second / third" are used merely to distinguish similar objects and do not represent a specific order of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0021] 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 disclosure belongs. The terminology used herein is for the purpose of describing embodiments of this disclosure only and is not intended to limit this disclosure.

[0022] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; direct connections or indirect connections through intermediate components; wired connections, radio connections, or wireless communication signal connections. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0023] The present application will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present application can be combined with each other.

[0024] According to specific embodiments of this application, such as Figure 1-5 As shown, this application provides a quick-installation steel retaining wall near an operating railway line. The steel retaining wall includes multiple cylindrical retaining wall modules 1 arranged vertically. Each retaining wall module 1 is composed of multiple arc-shaped templates spliced ​​together. In the same ring of retaining wall modules 1, two adjacent arc-shaped templates are connected by bolts. In this embodiment, each arc-shaped template has a flange on its edge, and multiple connecting holes are provided on the flange. In the same ring of retaining wall modules 1, the flanges of adjacent arc-shaped templates are locked by bolt and nut assemblies to connect multiple arc-shaped templates into a stable retaining wall module.

[0025] The top of the protective wall module 1 is provided with multiple male connectors, and the bottom of the protective wall module 1 is provided with multiple female connectors at corresponding positions. The male connectors are used to be inserted into and locked in the female connectors.

[0026] The male connector assembly includes at least a male head 4 and a locking mechanism. The upper part of the male head 4 is a frustum 2 and the lower part is a column 3, and the maximum axial dimension of the upper frustum 2 is greater than the axial dimension of the column 3.

[0027] The female head assembly includes at least one set of locking blocks 8 and a support 10. The locking blocks 8 are movably installed in the support 10, and the end of the locking blocks 8 facing the male head 4 is a slope.

[0028] As the pile hole is excavated, multiple retaining wall modules 1 are connected one by one and lowered gradually. When two retaining wall modules 1 are connected to each other, the male head component on one retaining wall module 1 is inserted into the female head component of the other retaining wall module 1, so that the locking block 8 is locked on the male head 4 and the locking mechanism is triggered to achieve mutual locking of the two retaining wall modules 1.

[0029] When using this steel retaining wall, it replaces the traditional reinforced concrete retaining wall in areas where pile holes need to be excavated. Specifically, multiple sections of arc-shaped templates are first spliced ​​together to form retaining wall module 1 for later use. Then, the pile holes are excavated manually, which has less impact on the railway operating line. As the pile holes are excavated, retaining wall module 1 is gradually lowered. Retaining wall module 1 can provide good support for the pile holes. In addition, after the pile holes are excavated, a steel cage is placed inside the steel retaining wall and concrete is poured to form the pile foundation. The steel retaining wall is not removed later but is permanently fixed in the pile foundation. The pile foundation with the steel retaining wall has a certain strength after pouring, which can reduce the curing time and shorten the construction period.

[0030] As the excavation depth of the pile hole increases, multiple retaining wall modules 1 are connected one by one to provide better support for the gradually deepening pile hole. When two retaining wall modules 1 are connected to each other, the male head component on one retaining wall module 1 is inserted into the female head component of the other retaining wall module 1, so that the locking block 8 passes over the truncated cone part 2 and is locked below the truncated cone part 2, forming a primary lock. At the same time, the locking block 8 will trigger the locking mechanism to form a secondary lock. That is, the male head component and the female head component in this application are firmly fixed together through double locking, which is conducive to the safe and effective use of the steel retaining wall and ensures the safety of pile hole excavation.

[0031] In this embodiment, each protective wall module 1 is composed of four arc-shaped templates spliced ​​together. In other embodiments, the protective wall module 1 may also be composed of two or three arc-shaped modules spliced ​​together. No specific limitation is made here.

[0032] A convex plate is provided at the top of the arc-shaped template, and a male head component is provided on the convex plate at the top of the arc-shaped template; a convex plate is provided at the bottom of the arc-shaped template, and two female head components are provided on the convex plate at the bottom of the arc-shaped template, that is, each male head component is provided with two female head components; in this embodiment, a ring of protective wall modules 1 includes four arc-shaped templates. In the same ring of protective wall modules 1, convex plates are provided on two arc-shaped templates that are arranged opposite each other, that is, a male head component is provided on the convex plate at the top of the arc-shaped template, and two female head components are provided on the convex plate at the bottom of the arc-shaped template. When two adjacent rings of protective wall modules 1 are connected to each other, the male head components and female head components located on both sides of the protective wall module 1 are connected to each other; by providing convex plates at the top and bottom of the protective wall module 1, and placing the male head components and female head components on the convex plates, the male head components and female head components are prevented from encroaching on the internal space of the protective wall module 1. The cross-sectional area of ​​the manually excavated hole is consistent with the cross-sectional area of ​​the protective wall module 1.

[0033] A guide hole is provided in the support 10 of the female head assembly, and the locking block 8 is guided and disposed in the guide hole. A first spring 9 is provided between the locking block 8 and the support 10, and the first spring 9 is located in the guide hole.

[0034] In this embodiment, a male connector is inserted between two female connectors. During this process, the inclined surface of the locking block 8 first moves along the frustum portion 2, at which time the locking block 8 compresses the first spring 9. After the locking block 8 passes the frustum portion 2, under the elastic force of the first spring 9, the locking block 8 is locked below the frustum portion 2, thereby achieving the initial locking of the male connector and the female connector.

[0035] An inner cavity is provided in the frustum portion 2 of the male head 4, and the locking mechanism includes two locking tongues 14, which are guided and disposed in the inner cavity.

[0036] A second spring 15 is provided between the two locking tongues 14. The two locking tongues 14 are pushed out of the inner cavity of the cone portion 2 by the second spring 15, so that the locking tongues 14 are locked above the support 10.

[0037] In this embodiment, the two locking tongues 14 are arranged facing away from each other, and both locking tongues 14 move in the horizontal direction. The locking block 8 also moves in the horizontal direction. When the male head assembly is not inserted into the female head assembly, the locking tongues 14 are limited in the inner cavity of the frustum portion 2. When the male head assembly is inserted into the female head assembly, the locking tongues 14 are unlocked. At this time, the elastic force of the second spring 15 pushes the two locking tongues 14 out of the inner cavity of the frustum portion 2, so that each locking tongue 14 is locked on the support 10 of a female head assembly, thereby forming a second-level lock between the male head assembly and the female head assembly. Through the two-level lock, the male head assembly and the female head assembly are more firmly fixed together, ensuring a more secure and reliable connection between two adjacent protective wall modules 1.

[0038] A through hole is provided near each latch 14 in the inner cavity, and a locking pin 16 is guided in each through hole. When the locking pin 16 is inserted into the inner cavity, it is used to lock the end of the latch 14 to restrict the movement of the latch 14. When the locking pin 16 is pulled out of the inner cavity, it is used to unlock the latch 14, so that the latch 14 is pushed out of the inner cavity under the action of the second spring 15. In this embodiment, when the male connector is not inserted into the female connector, the locking pin 16 limits the latch 14; when the male connector is inserted into the female connector, the locking pin 16 is withdrawn from the inner cavity, releasing the lock on the latch 14. At this time, the latch 14 pops out and locks in the holder.

[0039] The locking pin 16 is connected to the lever 18 via the connecting rod 17. One end of the connecting rod 17 is hinged to the locking pin 16, and the other end is hinged to the lever 18. The lever 18 is rotatably disposed in the male head 4. When the male head assembly is not inserted into the female head assembly, the lever 18 extends out of the male head 4. When the male head assembly is inserted into the female head assembly, and the locking block 8 is locked below the truncated cone portion 2, the locking block 8 pushes the lever 18 to rotate. The lever 18 pulls the locking pin 16 to move via the connecting rod 17, causing the locking lock to retract from the inner cavity and release the locking of the bolt 14.

[0040] In this embodiment, by rotating the toggle block 18, the toggle block 18 drives the connecting rod 17 to swing, and the connecting rod 17 drives the locking pin 16 to move along the through hole guide, so that the locking pin 16 can be withdrawn from the inner cavity and release the locking of the latch 14. At this time, the latch 14 can be ejected outward under the action of the second spring 15 and locked on the card seat.

[0041] Among them, the lever 18 is a triangular block structure. One corner of the triangular lever 18 is hinged to the connecting rod 17, and the other corner is rotatably set on the male head 4.

[0042] The male head 4 is provided with a clearance groove, and the toggle block 18, the connecting rod 17 and the locking pin 16 are all located in the clearance groove of the male head 4.

[0043] In this embodiment, the male head 4 is divided into two parts along the plane passing through its axis. The two parts can be fixedly connected to each other by multiple bolts. The positioning groove and the inner cavity are both located between the two parts of the male head 4. Setting the male head 4 as two parts of a split structure makes it easier to install structures such as the locking tongue 14, locking pin 16, connecting rod 17, and toggle block 18 inside the male head 4.

[0044] Multiple lap joints 7 are also rotatably installed in the wall protection module 1. The lap joints 7 are rotatably set on the bottom edge of the wall protection module 1 near the bottom. A limit mechanism 5 is provided on the upper part of the wall protection module 1, and the upper part of the lap joints 7 is temporarily locked in the limit mechanism 5.

[0045] In this embodiment, each wall protection module 1 is provided with two lap joints 7, and the lap joints 7 are staggered with the male connector component.

[0046] A third spring 6 is provided between the upper part of the lap joint 7 and the wall protection module 1. The third spring 6 is located below the limiting mechanism 5. After the limiting mechanism 5 temporarily locks the upper part of the lap joint 7, the third spring 6 pushes the lap joint 7 into the wall protection module 1.

[0047] The limiting mechanism 5 includes a first clamping body 11 and a second clamping body 12. A torsion spring is provided between the first clamping body 11 and the second clamping body 12. A pull rope 13 is provided at the open end of the first clamping body 11 and the second clamping body 12. The first clamping body 11 is fixed inside the protective wall module 1. When two adjacent protective wall modules 1 are fixed to each other, the upper part of the lap joint 7 is temporarily limited in the closed end of the first clamping body 11 and the second clamping body 12, and the bottom of the upper lap joint 7 is connected to the pull rope 13.

[0048] After fixing two adjacent wall protection modules 1 together with the male and female connectors, the upper part of the lap joint 7 is temporarily limited within the closed end of the first clamp 11 and the second clamp 12, and the bottom of the upper lap joint 7 is connected to the pull rope 13.

[0049] The steel retaining wall is constructed in conjunction with manual excavation. Specifically, a scaffold is first set up at the location of the hole to be excavated. Then, the pile hole is excavated manually, and the assembled retaining wall module 1 is installed on the scaffold. The first retaining wall module 1 is lowered into the pile hole through the scaffold. Then, the second retaining arm module is assembled on the first retaining wall module 1 through the scaffold. Then, the pile hole is excavated downwards manually, and the assembled retaining wall module 1 is lowered down through the scaffold. That is, in the early stage of pile hole excavation, the retaining wall module 1 is assembled from top to bottom, and the retaining wall module 1 is lowered by its own weight under the action of the scaffold.

[0050] As the excavation depth of the pile hole increases, the friction between the retaining wall module 1 in the pile hole and the surrounding soil offsets its own weight. As the manual excavation deepens, the arc-shaped templates are hoisted one by one to the bottom of the pile hole using a scaffold, and the arc-shaped templates are installed on the bottom retaining wall module 1 from bottom to top until the pile hole is excavated to the design elevation.

[0051] After the pile hole excavation is completed and all retaining wall modules 1 are connected as one unit and installed in place, the reinforcing cage is lowered into the retaining wall module 1. Then, the limiting mechanism 5 of the uppermost retaining wall template is released. By pressing the open ends of the first clamp 11 and the second clamp 12, the closed ends of the first clamp 11 and the second clamp 12 are opened, thereby releasing the upper part of the lap bar 7. At this time, under the pushing action of the third spring 6, the lap bar 7 rotates into the retaining wall module 1 and contacts the reinforcing cage, so that the lap bar 7 overlaps the reinforcing cage. At the same time, the bottom of the lap bar 7 rotates outward, so that the bottom of the lap bar 7 pulls the pull rope 13, thereby unlocking the next level limiting mechanism 5, so that all the lap bars 7 in the inner wall template are released and contact the reinforcing cage.

[0052] Then concrete is poured into the retaining wall module 1 to integrate the steel cage, lap bar 7 and retaining wall module 1 into a single structure. The lap bar 7 establishes a connection between the steel cage and retaining wall module 1, which helps to strengthen the overall structural strength of the pile foundation after pouring.

[0053] In addition, grouting can be performed simultaneously into the gap between the retaining wall module 1 and the manually excavated hole to ensure a tighter fit between the overall steel retaining wall and the hole wall, so that the formed steel retaining wall is firmly fixed in the hole. In other embodiments, at least one perforation can be set on each arc-shaped template. When concrete is poured into the retaining wall module 1, the concrete can enter the gap between the retaining wall module 1 and the manually excavated hole through the perforation on the arc-shaped template, thereby ensuring a tight fit between the retaining wall module 1 and the hole wall.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A quick-installation steel retaining wall near an operational railway line, characterized in that, The steel retaining wall includes multiple cylindrical retaining wall modules arranged vertically. Each retaining wall module is composed of multiple arc-shaped templates spliced ​​together. In the same ring of retaining wall modules, two adjacent arc-shaped templates are connected by bolts. The top of the retaining wall module is provided with multiple male head components, and the bottom of the retaining wall module is provided with multiple female head components at corresponding positions. The male head components are used to be inserted into and locked in the female head components. The male connector assembly includes at least a male head and a locking mechanism. The upper part of the male head is a frustum portion and the lower part is a cylindrical portion, and the maximum axial dimension of the upper frustum portion is greater than the axial dimension of the cylindrical portion. The female head assembly includes at least one set of locking blocks and supports, wherein the locking blocks are movably installed in the supports, and the end of the locking blocks facing the male head is an inclined surface; As the pile hole is excavated, multiple retaining wall modules are connected one by one and lowered gradually. When two retaining wall modules are connected to each other, the male head component on one retaining wall module is inserted into the female head component of the other retaining wall module, so that the locking block is locked on the male head and triggers the locking mechanism to achieve mutual locking of the two retaining wall modules.

2. The quick-installation steel retaining wall adjacent to an operating railway line according to claim 1, characterized in that, Outer protruding plates are provided at both the top and bottom of the curved template.

3. The quick-installation steel retaining wall adjacent to an operating railway line according to claim 2, characterized in that, A male head component is provided on the outer convex plate at the top of the arc-shaped template; an outer convex plate is provided at the bottom of the arc-shaped template, and two female head components are provided on the outer convex plate at the bottom of the arc-shaped template, that is, each male head component is provided with two female head components.

4. The quick-installation steel retaining wall adjacent to an operating railway line according to claim 3, characterized in that, A guide hole is provided in the support of the female head assembly, the locking block is guided in the guide hole, and a first spring is provided between the locking block and the support, with the first spring located in the guide hole.

5. The quick-installation steel retaining wall adjacent to an operating railway line according to claim 4, characterized in that, An inner cavity is provided within the conical portion of the male head, and the locking mechanism includes two locking tongues, with the two locking tongues guided within the inner cavity.

6. The quick-installation steel retaining wall adjacent to an operating railway line according to claim 5, characterized in that, A second spring is provided between the two locking tongues. The second spring pushes the two locking tongues out of the inner cavity of the cone-shaped part, so that the locking tongues are locked above the support.

7. The quick-installation steel retaining wall adjacent to an operating railway line according to claim 6, characterized in that, A through hole is provided near each latch position in the inner cavity, and a locking pin is guided in each through hole. When the locking pin is inserted into the inner cavity, it is used to lock the end of the latch to restrict the movement of the latch. When the locking pin is pulled out of the inner cavity, it is used to unlock the latch, so that the latch is pushed out of the inner cavity under the action of the second spring.

8. The quick-installation steel retaining wall adjacent to an operating railway line according to claim 7, characterized in that, The locking pin is connected to a lever via a connecting rod. One end of the connecting rod is hinged to the locking pin, and the other end is hinged to the lever. The lever is rotatably mounted in the male head.

9. The quick-installation steel retaining wall adjacent to an operating railway line according to claim 8, characterized in that, When the male connector is not inserted into the female connector, the lever extends out of the male connector; when the male connector is inserted into the female connector and the locking block is engaged below the truncated cone, the locking block pushes the lever to rotate, and the lever pulls the locking pin through the connecting rod to move, causing the locking lock to retract from the inner cavity and release the locking of the bolt.

10. The quick-installation steel retaining wall adjacent to an operating railway line according to claim 9, characterized in that, The male head is provided with a clearance groove, and the toggle block, connecting rod and locking pin are all located in the clearance groove of the male head.

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