Tunneling tunnel gap hydraulic reclamation joint

Abstract

The utility model provides a tunneling tunnel gap hydraulic reclamation connector, and belongs to the field of tunnel backfill construction.The tunneling tunnel gap hydraulic reclamation connector comprises a conveying pipeline, an inner pipe, a rotating device, an outer pipe, a longitudinal driving device and a supporting device.The conveying pipeline is used for conveying filler to a gap between a pipe piece and a tunnel; the conveying pipeline penetrates through the inner pipe and is rotationally connected with the inner pipe; the rotating device is connected with the conveying pipeline and used for driving the conveying pipeline to rotate relative to the inner pipe; the inner pipe is sleeved with the outer pipe, and the outer pipe is in sliding connection with the inner pipe. The longitudinal driving device is arranged between the inner pipe and the outer pipe and used for driving the inner pipe to move in the axial direction of the outer pipe. The supporting device is arranged on the outer side wall of the outer pipe and used for fixing the outer pipe into the reserved hole, the conveying pipeline can be driven to rotate in the horizontal direction and slide in the vertical direction through the rotating device and the longitudinal driving device, and then the gap between the pipe piece and the tunnel can be filled with bezoar stones more sufficiently; therefore, the stability of the shield segment is ensured.

Description

Technical Field

[0001] This application relates to the technical field of tunnel backfilling construction, and specifically relates to a tunneling tunnel gap blowing joint. Background Art

[0002] The shield method refers to the construction technology of using a shield machine for tunnel excavation. While the tunnel is being excavated, a support segment is constructed as the "shield" of the tunnel, hence it is called "shield". Shield construction mainly includes four processes: shield machine excavation, precast segment assembly, pea gravel backfilling, and grouting. After the segment assembly is completed, there is a gap between the segment and the inner wall of the tunneling tunnel. To prevent the segment from deforming, it is necessary to spray and fill pea gravel into the gap, and pour cement slurry into the gaps between the pea gravels to form a stable support and avoid problems such as subsequent deformation, dislocation, and leakage of the segment.

[0003] For pea gravel spraying, a pea gravel pump is required. When the pea gravel pump is working, compressed air is connected, and it can transport the pea gravel through the pipeline to the nozzle to fill the gap between the segment and the tunnel. In actual on-site applications, since the pea gravel nozzle is fixedly installed and the spraying direction cannot be controlled, it is easy to cause problems such as incomplete filling, and the quality of pea gravel spraying cannot be ensured, leaving potential safety hazards. Utility Model Content

[0004] In view of the technical problems in the background art, this application provides a tunneling tunnel gap blowing joint. This tunneling tunnel gap blowing joint can achieve the technical effects of improving the efficiency and quality of pea gravel spraying operations by driving the conveying pipeline to rotate horizontally and slide vertically through a rotating device and a longitudinal driving device.

[0005] An embodiment of this application provides a tunneling tunnel gap blowing joint, which is used to extend into the gap between the segment and the tunnel through a reserved hole on the segment, and includes:

[0006] A conveying pipeline, which is used to transport the filling material to the gap between the segment and the tunnel;

[0007] An inner pipe, the conveying pipeline passes through the inner pipe and is rotationally connected to the inner pipe;

[0008] A rotating device, which is connected to the conveying pipeline and is used to drive the conveying pipeline to rotate relative to the inner pipe;

[0009] An outer pipe, the outer pipe is sleeved on the inner pipe, and the outer pipe is slidably connected to the inner pipe;

[0010] A longitudinal driving device, which is arranged between the inner pipe and the outer pipe and is used to drive the inner pipe to move along the axial direction of the outer pipe;

[0011] A support device, which is arranged on the outer side wall of the outer pipe and is used to fix the outer pipe in the reserved hole.

[0012] In the technical solution of the embodiment of the present application, the tunneling tunnel gap grouting joint is fixed in the reserved hole through the support device to ensure the stability of the tunneling tunnel gap grouting joint during the filling process. Secondly, during the process of filling the gap between the segment and the tunnel with pea gravel through the tunneling tunnel gap grouting joint by the pea gravel pumping pipeline, the rotating device and the longitudinal driving device can drive the conveying pipeline to rotate horizontally and slide vertically, so as to more fully fill the gap between the segment and the tunnel with pea gravel to ensure the stability of the shield segment.

[0013] In some embodiments, the longitudinal driving device includes a rack, a gear and a first driving motor. The rack is arranged on the outer side wall of the inner pipe and is arranged along the axial direction of the inner pipe. A groove is provided on the inner side wall of the outer pipe. The gear is arranged in the groove and meshes with the rack. The first driving motor is connected to the gear and is used to drive the gear to rotate.

[0014] In this embodiment, the first driving motor drives the gear to rotate to adjust the length of the conveying pipeline extending into the gap between the segment and the tunnel, so as to change the height when the conveying pipeline sprays pea gravel, and then can more evenly fill the gap between the segment and the tunnel with pea gravel.

[0015] In some embodiments, at least two groups of longitudinal driving devices are provided, and the longitudinal driving devices are evenly arranged between the outer pipe and the inner pipe with the axis of the inner pipe as the center.

[0016] In this embodiment, by arranging multiple groups of longitudinal driving devices between the outer pipe and the inner pipe, not only makes the inner pipe slide up and down more smoothly when driving the conveying pipeline, but also further increases the stability of the inner pipe during the sliding process.

[0017] In some embodiments, it further includes balls and chutes. The outer side wall of the conveying pipeline and the inner side wall of the inner pipe are both correspondingly provided with the chutes. The balls are arranged between the conveying pipeline and the inner pipe and are placed in the chutes.

[0018] In this embodiment, by arranging balls between the inner pipe and the conveying pipeline, the smoothness of the conveying pipeline during rotation is further increased.

[0019] In some embodiments, it further includes a guide plate. One end of the conveying pipeline is a connection end for connecting an external pipeline, and the other end is a discharge end extending into the gap between the segment and the tunnel. The guide plate is arranged at the discharge end and is used to form a discharge port facing the side of the conveying pipeline at the discharge end of the conveying pipeline.

[0020] In this embodiment, the spraying direction of the pea gravel is controlled by the guide plate, so that the pea gravel is ejected to the side of the conveying pipeline under the action of the guide plate, and then the pea gravel can be more evenly filled into the gap between the segment and the tunnel.

[0021] In some embodiments, a pipeline connection device is further included. The pipeline connection device is arranged at the connection end of the conveying pipeline and is used to connect an external pipeline to the conveying end of the conveying pipeline.

[0022] In this embodiment, by arranging a pipeline connection device adapted to the pea gravel pumping pipeline at the connection end of the conveying pipeline, it is convenient to more conveniently connect the tunneling tunnel gap backfill joint to the pea gravel pumping pipeline.

[0023] In some embodiments, an image acquisition device is further included. The image acquisition device is arranged at one end of the conveying pipeline that extends into the gap between the segment and the tunnel and is used to acquire image data in the gap between the segment and the tunnel.

[0024] In this embodiment, image data in the gap between the segment and the tunnel is acquired by the image acquisition device, and then the movement and rotation of the tunneling tunnel gap backfill joint are adjusted according to the image data analysis of the pea gravel filling and the surrounding rock wall conditions, and the backfill parameters are optimized, so as to ensure the pea gravel backfill effect.

[0025] In some embodiments, a protective cover is further included. The protective cover is made of a transparent material, and the image acquisition device is placed inside the protective cover.

[0026] In this embodiment, the protective cover can effectively prevent impacts from substances such as pea gravel, and thus ensure the safety of the image acquisition device during use.

[0027] In some embodiments, a lighting device is further included. The lighting device is arranged inside the protective cover.

[0028] In this embodiment, the brightness in the gap between the segment and the tunnel is increased by the lighting device, and thus the clarity of the image data acquired by the image acquisition device is increased.

[0029] In some embodiments, the support device includes:

[0030] A housing, which is fixedly arranged on the outer pipe. The housing is provided with a cavity, and a through hole communicating with the cavity is provided on the side of the housing away from the outer pipe;

[0031] A hydraulic telescopic rod, which is arranged in the cavity, and the telescopic end of the hydraulic telescopic rod can extend out of the housing through the through hole;

[0032] A hydraulic pump is provided inside the cavity and is connected to the hydraulic telescopic rod.

[0033] In this embodiment, the hydraulic pump controls the hydraulic telescopic rod, enabling the telescopic end of the hydraulic telescopic rod to extend out of the housing through the through hole and abut against the hole wall of the reserved hole, thereby firmly fixing the tunneling gap backfill joint in the reserved hole.

[0034] The above description is only an overview of the technical solution of the present application. In order to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. Moreover, in order to make the above and other purposes, features, and advantages of the present application more obvious and understandable, the following specifically describes the specific embodiments of the present application. Brief Description of the Drawings

[0035] In order to more clearly illustrate the technical solution of the present application, the drawings used in the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 Schematic diagram of the usage state of the tunneling gap backfill joint provided for the embodiment of the present application;

[0037] Figure 2 Schematic diagram of the structure of the tunneling gap backfill joint in the embodiment of the present application;

[0038] Figure 3 For Figure 2 Partial enlarged view of part A in

[0039] Figure 4 For Figure 2 Partial enlarged view of part B in

[0040] Figure 5 Schematic diagram of the structure of the support device in the embodiment of the present application.

[0041] Explanation of the reference numerals in the drawings:

[0042] 1, segment; 2, reserved hole; 3, gap; 4, pea gravel pumping pipeline; 5, conveying pipeline;

[0043] 6, inner pipe; 7, rotating device; 8, outer pipe; 9, longitudinal driving device; 91, rack;

[0044] 92, gear; 10, support device; 11, ball; 12, guide plate; 13, pipeline connection device;

[0045] 14, image acquisition device; 15, protective cover; 101, housing; 102, hydraulic telescopic rod

[0046] 103. Hydraulic pump. Specific implementation manner

[0047] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, and therefore are only examples and cannot be used to limit the protection scope of the present application.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above accompanying drawings are intended to cover non-exclusive inclusion.

[0049] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0050] Referring to "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of this application. The phrase appearing in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0051] In the description of the embodiments of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0052] In the description of the embodiments of this application, the term "a plurality" refers to more than two (including two). Similarly, "a plurality of groups" refers to more than two groups (including two groups), and "a plurality of pieces" refers to more than two pieces (including two pieces).

[0053] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of 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. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0054] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "coupling", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0055] The shield method refers to the construction technology of using a shield machine for tunnel excavation. While the tunnel is being excavated, a support segment 1 is constructed as the "shield" of the tunnel, hence the name "shield". Shield construction mainly includes four major processes: shield machine tunneling, precast segment 1 assembly, pea gravel backfilling, and grouting. After the segment 1 is assembled, there is a gap between the segment 1 and the inner wall of the excavated tunnel. To prevent the segment 1 from deforming in the future, it is necessary to spray and fill pea gravel into the gap, and pour cement slurry into the voids between the pea gravels to form a stable support and avoid problems such as subsequent deformation, dislocation, and leakage of the segment 1.

[0056] Pea gravel spraying requires the use of a pea gravel pump. When the pea gravel pump works, compressed air is connected, and it can transport pea gravel through a pipeline to a nozzle to fill the gap 3 between the segment 1 and the tunnel. In actual on-site applications, since the pea gravel nozzle is fixedly installed and its spraying direction cannot be controlled, it is easy to cause problems such as incomplete filling, and the quality of pea gravel spraying cannot be ensured, leaving potential safety hazards.

[0057] To solve the technical problems that the existing pea gravel nozzle is fixedly installed, its spraying direction cannot be controlled, it is easy to cause problems such as incomplete filling, the quality of pea gravel spraying cannot be ensured, and potential safety hazards are left, the present application provides a filling joint for the gap of an excavated tunnel. Among them, the conveying pipeline 5 is driven by a rotating device 7 and a longitudinal driving device 9 to achieve horizontal rotation and vertical sliding, so as to achieve the technical effect of improving the efficiency and quality of pea gravel spraying operations.

[0058] Please refer to Figure 2 ,Figure 2 This is a schematic structural diagram of the tunneling gap grouting joint in the embodiments of the present application. The tunneling gap grouting joint is used to extend into the gap 3 between the segment 1 and the tunnel through the reserved hole 2 on the segment 1, and includes a conveying pipeline 5, an inner pipe 6, a rotating device 7, an outer pipe 8, a longitudinal driving device 9 and a supporting device 10. Among them, the conveying pipeline 5 is used to convey pea gravel to the gap 3 between the segment 1 and the tunnel; the conveying pipeline 5 passes through the inner pipe 6 and is rotationally connected to the inner pipe 6; the rotating device 7 is connected to the conveying pipeline 5 and is used to drive the conveying pipeline 5 to rotate relative to the inner pipe 6; the outer pipe 8 is sleeved on the inner pipe 6, and the outer pipe 8 is slidably connected to the inner pipe 6; the longitudinal driving device 9 is arranged between the inner pipe 6 and the outer pipe 8 and is used to drive the inner pipe 6 to move along the axial direction of the outer pipe 8; the supporting device 10 is arranged on the outer side wall of the outer pipe 8 and is used to fix the outer pipe 8 in the reserved hole 2.

[0059] Specifically, please refer to Figure 1 , Figure 1 This is a schematic diagram of the usage state of the tunneling gap grouting joint provided by the embodiments of the present application. During the use process, the tunneling gap grouting joint is connected to the pea gravel pumping pipeline 4, the tunneling gap grouting joint is extended into the gap 3 between the segment 1 and the tunnel through the reserved hole 2 on the shield segment 1, and the tunneling gap grouting joint is fixed in the reserved hole 2 through the supporting device 10 to ensure the stability of the tunneling gap grouting joint during the filling process. Secondly, during the process of filling the gap 3 between the segment 1 and the tunnel through the tunneling gap grouting joint by the pea gravel pumping pipeline 4, the rotating device 7 and the longitudinal driving device 9 can drive the conveying pipeline 5 to realize horizontal rotation and vertical sliding, so as to be able to fill the pea gravel in the gap 3 between the segment 1 and the tunnel more fully, thereby ensuring the stability of the shield segment 1.

[0060] Furthermore, please refer to Figure 3 , Figure 3 This is a partial enlarged view of part A in the embodiments of the present application Figure 2 In the embodiments of the present application, the longitudinal driving device 9 includes a rack 91, a gear 92 and a first driving motor. The rack 91 is arranged on the outer side wall of the inner pipe 6 and is arranged along the axial direction of the inner pipe 6. A groove is provided on the inner side wall of the outer pipe 8, the gear 92 is arranged in the groove and meshes with the rack 91, and the first driving motor is connected to the gear 92 and is used to drive the gear 92 to rotate.

[0061] During the use process, the first driving motor is used to drive the gear 92 to rotate, adjust the length of the conveying pipeline 5 extending into the gap 3 between the segment 1 and the tunnel, so as to change the height when the conveying pipeline 5 sprays pea gravel, and thus be able to fill the pea gravel in the gap 3 between the segment 1 and the tunnel more evenly.

[0062] Further, in the embodiment of the present application, there are at least two sets of longitudinal driving devices 9, and the longitudinal driving devices 9 are evenly arranged between the outer tube 8 and the inner tube 6 with the axis of the inner tube 6 as the center. By arranging multiple sets of longitudinal driving devices 9 between the outer tube 8 and the inner tube 6, not only does the inner tube 6 slide up and down more smoothly when driving the conveying pipeline 5, but also the stability of the inner tube 6 during the sliding process is further increased.

[0063] Further, in the embodiment of the present application, it further includes balls 11 and sliding grooves. Sliding grooves are correspondingly arranged on the outer side wall of the conveying pipeline 5 and the inner side wall of the inner tube 6. The balls 11 are arranged between the conveying pipeline 5 and the inner tube 6 and are placed in the sliding grooves, thereby forming a rotating bearing structure among the conveying pipeline 5, the inner tube 6, and the balls 11, further increasing the smoothness of the conveying pipeline 5 during rotation.

[0064] Further, in the embodiment of the present application, it further includes a guiding plate 12. One end of the conveying pipeline 5 is a connection end for connecting to an external pipeline, and the other end is a discharging end extending into the gap 3 between the segment 1 and the tunnel. The guiding plate 12 is arranged at the discharging end and is used to form a discharging port facing the side of the conveying pipeline 5 at the discharging end of the conveying pipeline 5. During use, after the dolomite pumping pipeline 4 conveys dolomite to the tunneling tunnel gap filling joint, the dolomite is conveyed from the connection end of the conveying pipeline 5 into the conveying pipeline 5 and sprayed from the discharging end of the conveying pipeline 5 into the gap 3 between the segment 1 and the tunnel. During this process, the spraying direction of the dolomite is controlled by the guiding plate 12, so that the dolomite is ejected to the side of the conveying pipeline 5 under the action of the guiding plate 12, and thus the dolomite can be filled more evenly in the gap 3 between the segment 1 and the tunnel.

[0065] Further, in the embodiment of the present application, it further includes a pipeline connection device 13. The pipeline connection device 13 is arranged at the connection end of the conveying pipeline 5. By arranging a pipeline connection device 13 adapted to the dolomite pumping pipeline 4 at the connection end of the conveying pipeline 5, it is convenient to connect the tunneling tunnel gap filling joint to the dolomite pumping pipeline 4 more conveniently.

[0066] In this embodiment, the pipeline connection device 13 can be a screw / nut joint or a clamping joint. During actual use, the corresponding pipeline connection device 13 can be selected according to requirements.

[0067] Further, please refer to Figure 4 , Figure 4 in the embodiment of the present application Figure 2Partial enlarged view of part B. In the embodiment of the present application, it further includes an image acquisition device 14. The image acquisition device 14 is arranged at one end of the conveying pipeline 5 that extends into the gap 3 between the segment 1 and the tunnel, and is used to acquire image data in the gap 3 between the segment 1 and the tunnel. During use, the staff rotates the conveying pipeline 5, so that the image acquisition device 14 on the conveying pipeline 5 rotates together with the conveying pipeline 5. Then, the staff can acquire the image data in the gap 3 between the segment 1 and the tunnel through the image acquisition device 14, and thus adjust the movement and rotation of the tunneling tunnel gap backfill joint and optimize the backfill parameters according to the image data analysis of the pea gravel filling and the surrounding rock wall conditions, so as to ensure the pea gravel backfill effect.

[0068] Furthermore, in the embodiment of the present application, it further includes a protective cover 15. The protective cover 15 is made of a transparent material, such as high-strength high-definition glass. The image acquisition device 14 is placed inside the protective cover 15, and the protective cover 15 can effectively prevent the impact of substances such as pea gravel, thus ensuring the safety of the image acquisition device 14 during use.

[0069] Furthermore, in the embodiment of the present application, since the gap 3 between the segment 1 and the tunnel is in a dark environment, in order to ensure that the image acquisition device 14 can acquire clearer image data, a lighting device 16 is also arranged inside the protective cover. The lighting device 16 increases the brightness in the gap 3 between the segment 1 and the tunnel, and thus increases the clarity of the image data acquired by the image acquisition device 14.

[0070] Furthermore, please refer to Figure 5 , Figure 5 which is the structural schematic diagram of the support device in the embodiment of the present application. In the embodiment of the present application, the support device 10 includes a housing 101, a hydraulic telescopic rod 102 and a hydraulic pump 103. Among them, the housing 101 is fixedly arranged on the outer pipe 8. The housing 101 is provided with a cavity, and a through hole communicating with the cavity is provided on one side of the housing 101 away from the outer pipe 8; the hydraulic telescopic rod 102 is arranged in the cavity, and the telescopic end of the hydraulic telescopic rod 102 faces the side of the through hole; the hydraulic pump 103 is arranged in the cavity and is connected to the hydraulic telescopic rod 102. When the hydraulic pump 103 pumps hydraulic oil into the hydraulic telescopic rod 102, the telescopic end of the hydraulic telescopic rod 102 can extend out of the housing 101 through the through hole and abut against the hole wall of the reserved hole 2, thereby firmly fixing the tunneling tunnel gap backfill joint in the reserved hole 2.

[0071] It should be noted that this application is not limited to the above embodiments. The above embodiments are only examples, and embodiments with the same composition and the same function and effect as the technical idea within the scope of the technical solution of this application are all included in the technical scope of this application. In addition, within the scope of not departing from the gist of this application, various modifications that those skilled in the art can think of to the embodiments, and other ways constructed by combining some of the constituent elements in the embodiments are also included in the scope of this application.

Claims

1. A tunneling gap filling joint, characterized in that, It is used to extend into the gap between the segment and the tunnel through the reserved hole on the segment, including: A conveying pipeline for conveying filling materials to the gap between the segment and the tunnel; An inner pipe through which the conveying pipeline passes and is rotatably connected to the inner pipe; A rotating device connected to the conveying pipeline for driving the conveying pipeline to rotate relative to the inner pipe; An outer pipe sleeved on the inner pipe and slidably connected to the inner pipe; A longitudinal driving device arranged between the inner pipe and the outer pipe for driving the inner pipe to move along the axial direction of the outer pipe; A supporting device arranged on the outer side wall of the outer pipe for fixing the outer pipe in the reserved hole; 2. The tunneling gap filling joint according to claim 1, characterized in that, The longitudinal driving device includes a rack, a gear and a first driving motor. The rack is arranged on the outer side wall of the inner pipe and is arranged along the axial direction of the inner pipe. A groove is provided on the inner side wall of the outer pipe. The gear is arranged in the groove and meshes with the rack. The first driving motor is connected to the gear for driving the gear to rotate.

3. The tunneling gap filling joint according to claim 2, characterized in that, At least two groups of longitudinal driving devices are provided, and the longitudinal driving devices are evenly arranged between the outer pipe and the inner pipe with the axis of the inner pipe as the center of the circle.

4. The tunneling gap filling joint according to claim 1, characterized in that, It also includes balls and chutes. The chutes are correspondingly arranged on the outer side wall of the conveying pipeline and the inner side wall of the inner pipe. The balls are arranged between the conveying pipeline and the inner pipe and placed in the chutes.

5. The tunneling gap filling joint according to claim 1, characterized in that, It also includes a guiding plate. One end of the conveying pipeline is a connection end for connecting to an external pipeline, and the other end is a discharging end extending into the gap between the segment and the tunnel. The guiding plate is arranged at the discharging end for forming a discharging port facing the side of the conveying pipeline at the discharging end of the conveying pipeline.

6. The tunneling gap grouting joint according to claim 5, wherein, It also includes a pipeline connection device arranged at the connection end of the conveying pipeline for connecting an external pipeline to the conveying end of the conveying pipeline.

7. The tunneling gap grouting joint according to claim 1, characterized in that, It also includes an image acquisition device arranged at one end of the conveying pipeline extending into the gap between the segment and the tunnel for acquiring image data in the gap between the segment and the tunnel.

8. The tunneling gap filling joint according to claim 7, characterized in that, It also includes a protective cover made of a transparent material, and the image acquisition device is placed in the protective cover.

9. The tunneling gap grouting joint according to claim 8, characterized in that It also includes a lighting device arranged in the protective cover.

10. The tunneling gap filling joint according to claim 1, characterized in that, The supporting device includes A housing fixedly arranged on the outer pipe. The housing is provided with a cavity, and a through hole communicating with the cavity is provided on the side of the housing away from the outer pipe; A hydraulic telescopic rod arranged in the cavity, and the telescopic end of the hydraulic telescopic rod can extend out of the housing through the through hole; A hydraulic pump arranged in the cavity and connected to the hydraulic telescopic rod.

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