Corrugated steel cylinder concrete electromagnetic shielding pipe and connector structure thereof

Abstract

The utility model discloses a corrugated steel cylinder concrete electromagnetic shielding pipe and a connector structure, and relates to the field of concrete pipe connectors, the connector structure comprises a socket connector and a socket connector, the socket connector comprises a socket reinforcement cage used for being connected to the end of a corrugated steel cylinder and a socket steel ring connected with the socket reinforcement cage, the spigot steel ring axially extends in the direction far away from the corrugated steel cylinder; as shown in the figure, the bellmouth joint comprises a bellmouth reinforcement cage used for being connected to the end of another corrugated steel cylinder and a bellmouth steel ring connected with the bellmouth reinforcement cage, and the bellmouth steel ring axially extends in the direction away from the corrugated steel cylinder and is connected with the spigot steel ring. According to the corrugated steel cylinder, the steel ring and the corrugated pipe are connected through the steel reinforcement cage in an indirect connection mode, so that a spot welding mode can be adopted during welding, the problem that the corrugated pipe is welded through easily due to direct welding of the steel ring and the corrugated pipe is solved, meanwhile, local reinforcement is carried out on a connecting joint, and the axial rigidity of the corrugated steel cylinder is improved; the joint strength of the two steel pipes is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pipe interfaces, in particular to a corrugated steel cylinder concrete electromagnetic shielding pipe and an interface structure thereof. Background Art

[0002] The corrugated steel cylinder concrete electromagnetic shielding pipe refers to a concrete power jacking pipe that uses a corrugated steel cylinder to replace the outer steel cage annular steel bars on the basis of a reinforced concrete pipe. For example, the Chinese patent with the publication number CN115956007U discloses a corrugated steel frame concrete jacking pipe, which is a composite pipe composed of a corrugated steel cylinder, an inner steel cage, an outer distributed steel bar and concrete. Among them, the inner steel cage and the corrugated steel cylinder are in an inside-outside relationship, and are connected by supporting steel bars. The corrugated steel cylinder is formed by rolling a corrugated steel plate, and distributed steel bars are welded to the outside of the corrugated steel cylinder along the longitudinal direction. It fully and comprehensively exerts the tensile strength of steel, the out-of-plane stiffness of corrugated steel, the sealing of the steel cylinder, the compressive and corrosion resistance of concrete, and has the characteristics of high sealing, high strength and high impermeability.

[0003] Existing steel cylinder concrete pipes are generally connected by a structure of a socket steel ring and a spigot steel ring. Since the joint of the pipe is a weak part, in order to evenly transmit the jacking force at the joint position during the jacking process, it is necessary to ensure that the connection has a certain strength. At present, a common method is to set a special socket steel ring and a spigot steel ring at both ends of the steel cylinder concrete pipe. The two are used in combination to achieve the connection between steel cylinder concrete pipes. The specific connection method is to connect the socket steel ring and the spigot steel ring to the steel cylinder by welding.

[0004] However, for corrugated steel cylinder concrete electromagnetic shielding tubes, the thickness of the corrugated steel cylinder is generally small, which is not conducive to direct welding connection with the socket steel ring and the plug steel ring. At the same time, the axial stiffness of the corrugated steel cylinder is small, which will cause the construction speed to decrease or the jacking failure during the jacking process, delaying the construction progress and increasing the construction cost. Utility Model Content

[0005] In view of the defects existing in the prior art, the purpose of the utility model is to provide a corrugated steel cylinder concrete electromagnetic shielding pipe and its interface structure to solve the problem of low strength of the connection joints of the corrugated steel cylinder concrete electromagnetic shielding pipe in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] On the one hand, the present application provides a corrugated steel cylinder concrete electromagnetic shielding pipe interface structure, comprising:

[0008] A spigot joint, comprising a spigot steel cage for connecting to the end of a corrugated steel cylinder and a spigot steel ring connected to the spigot steel cage, wherein the spigot steel ring extends axially in a direction away from the corrugated steel cylinder;

[0009] The socket joint comprises a socket steel cage for connecting to the end of another corrugated steel cylinder and a socket steel ring connected to the socket steel cage. The socket steel ring extends axially away from the corrugated steel cylinder and is connected to the socket steel ring.

[0010] In some optional embodiments, the socket steel ring is sleeved outside the plug steel ring and welded to the plug steel ring.

[0011] In some optional embodiments, an annular U-shaped groove is provided on the side wall of the above-mentioned plug steel ring close to the above-mentioned socket steel ring, and a sealing ring is provided in the above-mentioned U-shaped groove.

[0012] In some optional embodiments, the sealing ring is a solid rubber ring with a circular cross-section, and the size of the sealing ring is adapted to the U-shaped groove, so as to fill the gap between the U-shaped groove and the socket steel ring when the socket steel ring is connected to the plug steel ring.

[0013] In some optional embodiments, a plurality of rivets are provided on the side of the socket steel ring close to the pipe core concrete layer and the side of the socket steel ring close to the protective concrete layer for anchoring the socket steel ring and the socket steel ring to the concrete.

[0014] In some optional embodiments, the welding length between the above-mentioned socket steel cage and the above-mentioned socket steel ring, and the above-mentioned socket steel cage and the above-mentioned socket steel ring is greater than or equal to 120 mm, and the axial welding length between the above-mentioned socket steel cage and the above-mentioned corrugated steel cylinder, and the above-mentioned socket steel cage and the above-mentioned corrugated steel cylinder is greater than or equal to 300 mm and less than or equal to 500 mm.

[0015] In some optional embodiments, the above-mentioned spigot steel cage and the above-mentioned socket steel cage are both used to connect with the corrugated pipe of the corrugated steel cylinder by spot welding.

[0016] In some optional embodiments, the axial length of the above-mentioned spigot steel cage and the above-mentioned socket steel cage for connection with the above-mentioned corrugated steel cylinder is greater than or equal to 300 mm.

[0017] In some optional embodiments, the minimum yield strength of the above-mentioned spigot steel ring and the above-mentioned socket steel ring is 205 MPa.

[0018] In some optional embodiments, the above-mentioned plug steel cage and the above-mentioned socket steel cage both include longitudinal steel bars and annular steel bars. The longitudinal steel bars are arranged at intervals circumferentially, and the annular steel bars are arranged at intervals axially and connected to the above-mentioned longitudinal steel bars. The distance between two adjacent annular steel bars is less than or equal to 50 mm and greater than or equal to 32 mm.

[0019] On the other hand, the present application also provides a corrugated steel tube concrete electromagnetic shielding pipe, including any of the above-mentioned interface structures.

[0020] Compared with the prior art, the advantages of the utility model are:

[0021] By adopting an indirect connection method, the steel ring and the corrugated pipe are connected by using a steel cage, so that spot welding can be used during welding, avoiding the problem of corrugated pipe welding penetration due to surface contact when the steel ring and the corrugated pipe are directly welded; by directly welding the steel cage composed of longitudinal steel bars and annular steel bars to the socket steel ring or the spigot steel ring, a socket joint and a spigot joint are formed. Before pouring concrete, the socket joint and the spigot joint are directly installed on both ends of the corrugated pipe, and spot welding is used for fixing and positioning. Not only is the processing procedure simple, but the connection joint is also locally strengthened, thereby improving the axial stiffness of the corrugated steel cylinder and the joint strength of the two steel pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 creative work.

[0023] Figure 1 It is a schematic diagram of the connection section of a corrugated steel cylinder concrete electromagnetic shielding pipe of the utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the middle socket connector;

[0025] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the center socket joint.

[0026] In the figure: 1. socket joint; 11. socket steel cage; 111. U-shaped groove; 12. socket steel ring; 2. socket joint; 21. socket steel cage; 22. socket steel ring; 3. corrugated steel cylinder; 31. corrugated pipe; 32. core concrete layer; 33. protective concrete layer; 4. rivet; 5. sealing ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] The following is a further detailed description of an embodiment of an interface structure of a corrugated steel cylinder concrete electromagnetic shielding pipe of the utility model in conjunction with the accompanying drawings.

[0029] like Figure 1 As shown, the present application provides a corrugated steel cylinder concrete electromagnetic shielding pipe interface structure, including a socket joint 1 and a socket joint 2, the socket joint 1 and the socket joint 2 are respectively used to connect to the ends of two corrugated steel cylinders 3 to be connected, so that the two corrugated steel cylinders 3 are connected through the socket joint 1 and the socket joint 2.

[0030] Specifically, Figure 2 As shown, the spigot joint 1 comprises a spigot steel cage 11 for connecting to the end of a corrugated steel cylinder 3 and a spigot steel ring 12 connected to the spigot steel cage 11, and the spigot steel ring 12 extends axially in a direction away from the corrugated steel cylinder 3; Figure 3 As shown, the socket joint 2 includes a socket steel cage 21 for connecting to the end of another corrugated steel cylinder 3 and a socket steel ring 22 connected to the above-mentioned socket steel cage 21. The above-mentioned socket steel ring 22 extends axially in a direction away from the above-mentioned corrugated steel cylinder 3 and is connected to the above-mentioned socket steel ring 12.

[0031] It can be understood that the spigot steel cage 11 and the socket steel cage 21 are both sleeved outside the corrugated tube 31 of the corrugated steel tube 3 and welded to the corrugated tube 31. Compared with the prior art in which the spigot steel ring and the socket steel ring are directly welded at the end of the corrugated tube 31, the present application adopts an indirect connection method, using a steel cage to connect the steel ring and the corrugated tube 31, so that spot welding can be used during welding, avoiding the problem of the corrugated tube 31 being easily welded through due to surface contact when the steel ring and the corrugated tube 31 are directly welded; by directly welding the steel cage composed of longitudinal steel bars and annular steel bars to the socket steel ring 22 or the spigot steel ring 12, a socket joint 2 and a spigot joint 1 are formed, and before pouring concrete, the socket joint 2 and the spigot joint 1 are directly installed at both ends of the corrugated tube 31, and spot welding is used for fixing and positioning.

[0032] It should be noted that, in this example, the socket steel ring 22 and the spigot steel ring 12 are coaxial with the corrugated steel cylinder 3, so that the two corrugated steel cylinders 3 can be coaxially connected when connected. Of course, in other embodiments, the socket steel ring 22 and the spigot steel ring 12 can also be specifically configured according to the connection requirements of the corrugated steel cylinder 3.

[0033] Therefore, the socket steel ring 22 is connected to the outer wall of one corrugated pipe 31 through the socket steel cage 21, and the plug steel ring 12 is connected to the inner wall of another corrugated pipe 31 through the plug steel cage 11. The side of the socket steel ring 22 away from the connection with the socket steel cage 21 is cast with a protective concrete layer 33, and there is a gap with the protective concrete layer 33 of the other corrugated steel cylinder, and the side close to the axis of the corrugated pipe 31 is cast with the core concrete layer 32 of the corrugated steel cylinder 3; the side of the plug steel ring 12 close to the axis of the corrugated pipe 31 is cast with the core concrete layer 32 of the corrugated steel cylinder 3, and there is a gap with the core concrete layer 32 of the other corrugated steel cylinder 3.

[0034] In some optional embodiments, the socket steel ring 22 is sleeved outside the plug steel ring 12 and welded to the plug steel ring 12 .

[0035] That is to say, the diameter of the socket steel ring 22 is larger than the diameter of the plug steel ring 12, and the two steel rings are connected by plug-fitting and welding.

[0036] In this example, the socket steel ring 22 is made of a steel plate or a steel plate strip composed of multiple steel plates. After the ring is formed by welding, the socket steel ring is expanded into a full circle with an expansion force exceeding the elastic limit strength of the steel plate to obtain the precise size determined by the design. The spigot steel ring 12 is made of a special-shaped steel plate strip that meets the requirements. After the ring is formed by welding, the spigot steel ring is expanded into a full circle with an expansion force exceeding the elastic limit strength of the steel plate to obtain the precise size determined by the design.

[0037] The working surfaces of the socket steel ring 22 and the spigot steel ring 12 for welding should be polished smooth and ensure fit, and there should be no defects such as cracks, slag inclusions, pores, etc. on the weld surface.

[0038] In some optional embodiments, an annular U-shaped groove 111 is provided on the side wall of the above-mentioned plug steel ring 12 close to the above-mentioned socket steel ring 22 , and a sealing ring 5 is provided in the above-mentioned U-shaped groove 111 .

[0039] It is understandable that the socket steel ring 22 and the plug steel ring 12 cannot ensure complete welding sealing during welding. In order to improve the sealing performance of the welding surface, a sealing ring 5 is provided at the connection between the socket steel ring 22 and the plug steel ring 12.

[0040] Furthermore, the sealing ring 5 is a solid rubber ring with a circular cross-section, and the size of the sealing ring 5 is adapted to the U-shaped groove 111, so as to fill the gap between the U-shaped groove 111 and the socket steel ring 22 when the socket steel ring 22 is connected to the plug steel ring 12.

[0041] It can be understood that the rubber ring is a material with elastic restoring force. After being placed in the U-shaped groove 111, when the socket steel ring 22 is connected to the plug steel ring 12, the welding surface of the socket steel ring 22 closes the opening of the U-shaped groove 111, and the sealing ring 5 completely fills the sealing space, so that the socket steel ring 22 and the plug steel ring 12 are further sealed by the solid rubber ring.

[0042] Optionally, the solid rubber ring can be spliced ​​with two sealing strips, and the circumferential distance between the two splicing points should be greater than or equal to 600 mm to reduce the probability of more leakage points.

[0043] In some optional embodiments, a plurality of rivets 4 are provided on the side of the socket steel ring 12 close to the pipe core concrete layer 32 and on the side of the socket steel ring 22 close to the protective concrete layer 33 for anchoring the socket steel ring 12 and the socket steel ring 22 to the concrete.

[0044] It can be understood that after the socket joint 2 and the spigot joint 1 are connected to the corrugated pipe 31, concrete is poured. In order to better anchor the spigot steel ring 12 and the socket steel ring 22 to the concrete, rivets 4 are provided to provide anchoring force. Preferably, the rivets 4 are provided in multiple groups along the circumferential direction, and each group includes multiple rivets arranged at intervals along the axial direction.

[0045] In some optional embodiments, the welding length between the above-mentioned socket steel cage 11 and the above-mentioned socket steel ring 12, and the above-mentioned socket steel cage 21 and the above-mentioned socket steel ring 22 is greater than or equal to 120 mm, and the axial welding length between the above-mentioned socket steel cage 11 and the above-mentioned corrugated steel cylinder 3, and the above-mentioned socket steel cage 21 and the above-mentioned corrugated steel cylinder 3 is greater than or equal to 300 mm and less than or equal to 500 mm.

[0046] It can be understood that the steel cage is welded by a plurality of longitudinal steel bars and a plurality of circumferential steel bars, and the welding length between the longitudinal steel bars and the steel ring should not be too long, otherwise it will lead to an increase in workload. At the same time, considering that the maximum wave pitch of the corrugated pipe 31 is 60mm, in order to ensure the welding strength and avoid local welding damage at the joint, the axial welding length of the longitudinal steel bars and the corrugated pipe 31 should cover two wave pitches, so the welding length of the above-mentioned socket steel cage 11 and the above-mentioned socket steel ring 12, and the above-mentioned socket steel cage 21 and the above-mentioned socket steel ring 22 is greater than or equal to 120mm.

[0047] Since the corrugated steel tube has an "accordion effect" in the axial direction and has low rigidity, it is necessary to locally strengthen the connection between the joint and the corrugated steel tube in the axial direction. Part of the axial force of the joint can rely on the bonding effect between the surface of the longitudinal force-bearing steel bar and the concrete. Refer to the requirements of the "Concrete Structure Design Code" GB50010-2010 for the anchorage length of the longitudinal steel bar. The anchorage length varies according to the diameter of the longitudinal steel bar. For ordinary ribbed steel bars, the anchorage length is: l = α (f y / f t )d, calculated with ribbed ordinary steel bars with a diameter of 10mm, the anchorage length of the longitudinal steel bars is 267mm. After rounding, the minimum length of the longitudinal steel bars is recommended to be 300mm. The longitudinal steel bars are only partially reinforced at the joints. Considering the cost, the longitudinal steel bars should not be too long. It is recommended that the upper limit value be 500mm, which is more reasonable.

[0048] Therefore, preferably, the axial length of the above-mentioned spigot steel cage 11 and the above-mentioned socket steel cage 21 for connection with the above-mentioned corrugated steel cylinder 3 is greater than or equal to 300 mm.

[0049] In some optional embodiments, the above-mentioned spigot steel cage 11 and the above-mentioned socket steel cage 21 are both used to connect with the bellows 31 of the corrugated steel cylinder 3 by spot welding.

[0050] Optionally, the steel cages are all made of threaded steel parts, and the minimum yield strength of the annular reinforcement and the longitudinal reinforcement is greater than or equal to 335 MPa.

[0051] In some optional embodiments, the minimum yield strength of the above-mentioned spigot steel ring 12 and the above-mentioned socket steel ring 22 is 205 MPa.

[0052] In some optional embodiments, the distance between two adjacent circumferential steel bars is less than or equal to 50 mm.

[0053] It is understandable that according to the specification "Steel Cylinder Concrete Pipe for Jacking Construction Method" JCT 2092-2011, the net spacing of the annular reinforcement shall not be greater than 100mm and not less than 32mm, and the minimum reinforcement diameter shall not be less than 5mm. The annular reinforcement at both ends of the corrugated steel cylinder should be densely processed, so it is stipulated here that the spacing of the annular reinforcement shall not be greater than 50mm and not less than 32mm.

[0054] On the other hand, the present application also provides a corrugated steel tube concrete electromagnetic shielding pipe, including any of the above-mentioned interface structures.

[0055] It can be understood that the corrugated steel cylinder concrete electromagnetic shielding tube in the embodiment of the present application is connected to the socket joint 1 and the socket joint 2 at the two ends respectively, so that the corrugated steel cylinder concrete electromagnetic shielding tube can be connected in sequence.

[0056] During processing and manufacturing, the steel cage composed of longitudinal steel bars and annular steel bars is directly welded to the socket steel ring 22 or the plug steel ring 12 to form a socket joint 2 and a plug joint 1. Before pouring concrete, the socket joint 2 and the plug joint 1 are directly installed on the two ends of the corrugated pipe 31 and fixed and positioned by spot welding. Then, the core concrete layer 32 and the protective concrete layer 33 are poured to form a corrugated steel cylinder concrete electromagnetic shielding pipe. The processing procedure is simple, and at the same time, the connecting joints are locally strengthened, which improves the axial stiffness of the corrugated steel cylinder and the joint strength of the two steel pipes.

[0057] The working principle of the embodiment of the present application is: the longitudinal steel bars and the annular steel bars are welded into a socket steel cage 21 and a plug steel cage 11, and the socket steel ring 22 is welded to the socket steel cage 21, and the plug steel cage 11 is welded to the socket steel ring 12 to form a socket joint 2 and a plug joint 1. Before pouring concrete, the socket joint 2 and the plug joint 1 are directly installed at both ends of the corrugated pipe 31, the socket steel ring 22 is connected to the outer wall of one corrugated pipe 31 through the socket steel cage 21, and the plug steel ring 12 is connected to the inner wall of another corrugated pipe 31 through the plug steel cage 11, and the steel cage and the corrugated pipe 31 are fixed and positioned by spot welding. When the two corrugated steel cylinders 3 are connected, the socket steel ring 22 is sleeved on the outside of the plug steel ring 12 and welded, the welding surface of the socket steel ring 22 closes the opening of the U-shaped groove 111, and the sealing ring 5 completely fills the sealing space, so that the socket steel ring 22 and the plug steel ring 12 are further sealed by the solid rubber ring.

[0058] The present invention discloses a corrugated steel tube concrete electromagnetic shielding pipe interface structure, which uses an indirect connection method to connect the steel ring and the corrugated pipe 31 using a steel cage, so that spot welding can be used during welding, thereby avoiding the problem of the corrugated pipe 31 being easily welded through due to surface contact when the steel ring and the corrugated pipe 31 are directly welded; the steel cage composed of longitudinal steel bars and annular steel bars is directly welded to the socket steel ring 22 or the spigot steel ring 12 to form a socket joint 2 and a spigot joint 1, and before pouring concrete, the socket is directly The joint 2 and the socket joint 1 are installed at both ends of the corrugated pipe 31 and can be fixed and positioned by spot welding. Not only is the processing procedure simple, but the connection joint is locally strengthened, and the axial stiffness of the corrugated steel tube is improved, and the joint strength of the two steel pipes is improved; by arranging a sealing ring 5 at the connection between the socket steel ring 22 and the socket steel ring 12, the sealing performance of the welding surface of the socket steel ring 22 and the socket steel ring 12 is better; by arranging a rivet 4, the above-mentioned socket steel ring 12 and the above-mentioned socket steel ring 22 are anchored to the concrete.

[0059] In the description of the present application, it should be noted that the terms "upper", "lower", etc. 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0060] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0061] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A corrugated steel cylinder concrete electromagnetic shielding pipe interface structure, characterized in that: include: A spigot joint (1) comprises a spigot steel cage (11) for connecting to the end of a corrugated steel cylinder (3) and a spigot steel ring (12) connected to the spigot steel cage (11), wherein the spigot steel ring (12) extends axially in a direction away from the corrugated steel cylinder (3); A socket joint (2) comprises a socket steel cage (21) for connecting to the end of another corrugated steel cylinder (3) and a socket steel ring (22) connected to the socket steel cage (21); the socket steel ring (22) extends axially in a direction away from the corrugated steel cylinder (3) and is connected to the socket steel ring (12).

2. The electromagnetic shielding pipe interface structure of the corrugated steel cylinder concrete according to claim 1, characterized in that: The socket steel ring (22) is sleeved outside the socket steel ring (12) and is welded to the socket steel ring (12).

3. The electromagnetic shielding pipe interface structure of the corrugated steel cylinder concrete according to claim 2, characterized in that: An annular U-shaped groove (111) is provided on the side wall of the spigot steel ring (12) close to the socket steel ring (22), and a sealing ring (5) is provided in the U-shaped groove (111).

4. The electromagnetic shielding pipe interface structure of the corrugated steel cylinder concrete according to claim 3, characterized in that: The sealing ring (5) is a solid rubber ring with a circular cross-section, and the size of the sealing ring (5) is adapted to the U-shaped groove (111), so as to fill the gap between the U-shaped groove (111) and the socket steel ring (22) when the socket steel ring (22) is connected to the plug steel ring (12).

5. The electromagnetic shielding pipe interface structure of the corrugated steel cylinder concrete according to claim 1, characterized in that: A plurality of rivets (4) are provided on one side of the spigot steel ring (12) close to the pipe core concrete layer (32) and on one side of the socket steel ring (22) close to the protective concrete layer (33) for anchoring the spigot steel ring (12) and the socket steel ring (22) to the concrete.

6. The electromagnetic shielding pipe interface structure of the corrugated steel cylinder concrete according to claim 1, characterized in that: The welding length between the socket steel cage (11) and the socket steel ring (12), and between the socket steel cage (21) and the socket steel ring (22) is greater than or equal to 120 mm, and the axial welding length between the socket steel cage (11) and the corrugated steel cylinder (3), and between the socket steel cage (21) and the corrugated steel cylinder (3) is greater than or equal to 300 mm and less than or equal to 500 mm.

7. The electromagnetic shielding pipe interface structure of the corrugated steel cylinder concrete according to claim 1, characterized in that: The axial length of the socket steel cage (11) and the socket steel cage (21) for connection with the corrugated steel cylinder (3) is greater than or equal to 300 mm.

8. The electromagnetic shielding pipe interface structure of the corrugated steel cylinder concrete according to claim 1, characterized in that: The minimum yield strength of the spigot steel ring (12) and the socket steel ring (22) is 205 MPa.

9. The electromagnetic shielding pipe interface structure of the corrugated steel cylinder concrete according to claim 1, characterized in that: The spigot steel cage (11) and the socket steel cage (21) both include longitudinal steel bars and annular steel bars. The longitudinal steel bars are arranged at intervals in the circumferential direction, and the annular steel bars are arranged at intervals in the axial direction and connected to the longitudinal steel bars. The spacing between two adjacent annular steel bars is less than or equal to 50 mm and greater than or equal to 32 mm.

10. A corrugated steel cylinder concrete electromagnetic shielding pipe, characterized in that: Comprising an interface structure as described in any one of claims 1-9.

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