Connecting channel tunnel segment

Abstract

The utility model relates to a connecting channel tunnel segment, which comprises an arc-shaped back plate, an end face plate fixed on the arc-shaped back plate, a side face plate and a plurality of reinforcing rib plates, the end face plate, the side face plate and the plurality of reinforcing rib plates form a frame structure, the plurality of reinforcing rib plates are distributed at intervals along the radial direction of the arc-shaped back plate, and the reinforcing rib plates are fixed on the arc-shaped back plate. And the end panel is provided with at least one mounting hole. The multiple connecting channel tunnel segments are connected and combined through the locking assemblies to form a whole ring, and an end face plate of at least one connecting channel tunnel segment is arranged to be an inclined wedge-shaped face. The frame structure is fixed to the inner side arc face of the arc-shaped back plate, abuts against and is welded and fixed, the overall structural strength is high, and the edge is flat. The wedge-shaped faces are arranged at the ends of the connecting channel tunnel segments, and assembling and connecting are convenient. The locking assemblies are locked and assembled through the mounting holes, the assembling space is large, and locking and connecting are convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel segment, and in particular to a connecting channel tunnel segment. Background Art

[0002] The starting position of the main tunnel and the connecting channel needs to be connected to the excavation equipment, and the tunnel segments made of concrete need to be embedded with reinforcement and cast for the second time. Not only are the procedures complicated and the construction efficiency low, but also the connection of the excavation equipment requires the pre-embedded steel plate for transfer connection. The Chinese public patent document CN210317329U discloses an all-steel concrete shield segment, including a concrete segment body; the concrete segment body is composed of a steel segment outline frame, annular reinforcement ribs and axial reinforcement ribs welded in the steel segment outline frame, and concrete with a strength grade of C30 to C60 cast in the steel segment outline frame.

[0003] The above-mentioned concrete pouring is formed in the steel segment frame. The end surface of the steel segment is flat, which is not suitable for the technical problem of wedging and installing multiple tunnel segments into a lining ring, so it needs to be improved. Utility Model Content

[0004] In order to overcome the problems existing in the related art, an embodiment of the utility model provides a connecting channel tunnel segment to solve the technical problem of inconvenient segment assembly.

[0005] According to a first aspect of an embodiment of the utility model, a connecting channel tunnel segment is provided, the connecting channel tunnel segment comprising an arc-shaped back plate, an end panel fixed to the arc-shaped back plate, a side panel and a plurality of reinforcing ribs, the end panel, the side panel and the plurality of reinforcing ribs forming a frame structure, the plurality of reinforcing ribs being distributed at intervals along the radial direction of the arc-shaped back plate, and the end panel being provided with at least one mounting hole;

[0006] A plurality of communication channel tunnel segments are connected and combined by a locking assembly to form a complete ring, and an end panel of at least one of the communication channel tunnel segments is arranged as an inclined wedge-shaped surface.

[0007] In one embodiment, the arc-shaped back plate has at least one grouting hole distributed at intervals.

[0008] In one embodiment, the communication channel tunnel segment includes a reinforcement frame fixed to the arc-shaped back plate and at least one hoisting embedded part fixed to the reinforcement frame, and the reinforcement frame is connected to two adjacent reinforcement ribs.

[0009] In one embodiment, a protective coating is coated on the surface of the curved back plate.

[0010] In one embodiment, the communication channel tunnel segment includes an inner lining plate, and the inner lining plate extends from the edge of the side panel in the direction of the arc-shaped back panel.

[0011] In one embodiment, the two side panels are respectively configured as a convex side panel and a concave side panel, the convex side panel is provided with at least one partially protruding assembly boss, and the concave side panel is provided with at least one partially recessed assembly groove, the connecting channel tunnel segment is assembled with the adjacent tunnel segment, the assembly boss is engaged and positioned with the tunnel segment on one side, and the assembly groove is engaged and positioned with the tunnel segment on the other side.

[0012] In one embodiment, the assembly boss is concentrically arranged with the arc-shaped back plate, the cross section of the assembly boss is arranged to be trapezoidal, rectangular, triangular or arc-shaped, and the assembly groove and the assembly boss are complementary structures.

[0013] In one embodiment, both of the side panels are provided with an assembly groove, the assembly groove is arc-shaped and is arranged concentrically with the arc-shaped back panel, and the cross-section of the assembly groove is set to be trapezoidal, rectangular, triangular or circular arc.

[0014] In one embodiment, the reinforcing ribs include intersecting and fixed middle ribs, tangential ribs and radial ribs, the tangential ribs and radial ribs are symmetrically distributed on both sides of the middle ribs, the width of the tangential ribs is greater than the wall thickness of the radial ribs, the radial ribs are fixed to the arc-shaped back plate, and the tangential ribs intersect with the side panel.

[0015] In one embodiment, the connecting channel tunnel segments are respectively configured as a capping block, two adjacent blocks and at least one standard block that constitute a lining ring, wherein both ends of the capping block are configured as wedge-shaped surfaces, the capping block is wedged between the two adjacent blocks, the standard block abuts and supports the two adjacent blocks, and the two adjacent connecting channel tunnel segments are locked and connected by a locking assembly.

[0016] In one embodiment, the connecting channel tunnel segments are made of metal materials, composite materials or polymer materials.

[0017] The technical solution provided by the embodiment of the utility model may include the following beneficial effects: the frame structure is fixed to the inner curved surface of the curved back plate, the frame structure is abutted and welded, the overall structure has high strength and smooth edges. The ends of the connecting channel tunnel segments are provided with wedge-shaped surfaces for convenient assembly and connection. The locking assembly is locked and assembled through the mounting hole, the assembly space is large and the locking connection is convenient.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0020] Figure 1 It is a schematic diagram of the structure of a lining ring formed by tunnel segments of a connecting channel according to an exemplary embodiment.

[0021] Figure 2 is a schematic diagram showing a cross-sectional structure of a lining ring according to an exemplary embodiment.

[0022] Figure 3 is a schematic structural diagram showing a capping block according to an exemplary embodiment.

[0023] Figure 4 is a schematic diagram showing a cross-sectional structure of a capping block according to an exemplary embodiment.

[0024] Figure 5 is a schematic diagram showing a cross-sectional structure of adjacent blocks according to an exemplary embodiment.

[0025] Figure 6 is a schematic diagram showing a cross-sectional structure of a standard block according to an exemplary embodiment.

[0026] Figure 7 It is a schematic cross-sectional view of a connecting channel tunnel segment according to an exemplary embodiment.

[0027] In the figure, the connecting channel tunnel segment 100; the capping block 101; the adjacent block 102; the standard block 103; the arc back plate 10; the grouting hole 11; the end panel 20; the wedge surface 21; the mounting hole 22; the reinforcing plate 23; the reinforcing rib 30; the radial rib 31; the tangential rib 32; the intermediate rib 33; the side panel 40; the convex side panel 41; the assembly boss 411; the concave side panel 42; the assembly groove 421; the hoisting embedded part 50; the inner lining plate 60; the reinforcing frame 70; and the top plate 71. DETAILED DESCRIPTION

[0028] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0029] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention 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, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term 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 an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figures 1 to 6 As shown, the utility model provides a connecting channel tunnel segment, and the connecting channel tunnel segment 100 includes a curved back plate 10, an end panel 20 fixed to the curved back plate 10, a side panel 40 and a plurality of reinforcing ribs 30, and the end panel 20, the side panel 40 and the plurality of reinforcing ribs 30 constitute a frame structure. The curved back plate 10 is bent into an arc by a long rectangular plate, the side panel 40 is a plate-like structure, and the edge of the side panel 40 is cut into an arc to adapt to the curvature of the curved back plate 10. The end panel 20 is connected to the end surface of the side panel 40 and is welded and fixed to the curved back plate 10, and the end panel 20, the side panel 40 and the curved back plate 10 constitute a groove structural member. The reinforcing rib 30 is located in the groove structural member as an inner support part. A plurality of reinforcing ribs 30 are distributed at intervals along the radial direction of the arc-shaped back plate 10 and are fixedly connected to the arc-shaped back plate 10. The reinforcing ribs 30 are composed of a criss-cross steel plate structure to form a grid-like frame structure in combination with the end panel 20 and the side panel 40 to improve the overall structural strength of the connecting channel tunnel segment 100. In one embodiment, the connecting channel tunnel segment is made of metal material, composite material or polymer material. Preferably, the connecting channel tunnel segment is made of steel material, such as the connecting channel tunnel segment is made of carbon steel. Preferably, the composite material is glass fiber, carbon fiber, silicon carbide fiber, ceramic, etc.; the polymer material is polyamide, epoxy resin, etc.

[0032] Furthermore, the edge of the frame structure is larger than or flush with the edge of the curved back plate 10, and the joint is connected by welding. Optionally, the edge of the frame structure is flush with the edge of the curved back plate 10, and the corresponding fitting part of the frame structure is provided with a chamfer to improve the welding strength. Optionally, the edge of the frame structure is larger than the edge of the curved back plate 10, and the size of the frame structure beyond the edge of the curved back plate 10 is less than or equal to half of the thickness of the corresponding steel plate. There is a step difference between the frame structure and the curved back plate 10, and the weld is located at the step surface and the inner side of the steel plate to improve the welding strength. For example, one side surface of the side panel 40 exceeds the side of the curved back plate 10 by half, and the weld welds the end face of the side panel 40 and the side of the curved back plate 10. The frame structure is larger than or equal to the curved back plate 10, so that the connecting channel tunnel segment can fit tightly with the adjacent segments when combined.

[0033] The end panel 20 is provided with at least one mounting hole 22, and a plurality of communication channel tunnel segments 100 are connected and assembled to form a complete ring through a locking assembly. The mounting hole 22 passes through the end panel 20, and two adjacent communication channel tunnel segments overlap and abut. The locking assembly is configured as a bolt assembly for detachable locking connection.

[0034] The end plate 20 of at least one connecting channel tunnel segment 100 is provided with an inclined wedge surface 21, and a plurality of connecting channel tunnel segments are combined into a lining ring. In the cross-sectional direction perpendicular to the axis of the lining ring, the wedge surface 21 is inclined relative to the center line of the lining ring and is not perpendicular. The wedge surface 21 can be wedged into the lining ring during assembly, thereby improving the assembly accuracy and tightness.

[0035] Preferably, the connecting channel tunnel segments 100 are respectively configured as a capping block 101, two adjacent blocks 102 and at least one standard block 103 constituting a lining ring, wherein both ends of the capping block 101 are configured as wedge surfaces 21, the capping block 101 is wedged between the two adjacent blocks 102, and the adjacent blocks 102 are configured with matching surfaces adapted to the wedge surfaces 21. The other end of the adjacent block 102 is configured as a vertical surface, and both ends of the standard block 103 are configured as vertical surfaces. The standard block 103 abuts and supports the two adjacent blocks 102, and the two adjacent connecting channel tunnel segments 100 are locked and connected by a locking assembly.

[0036] One or more standard blocks 103 form an arc structure, and the two ends of the arc structure are respectively abutted to install adjacent blocks 102, and the standard blocks 103 abut and support two adjacent blocks 102. A wedge-shaped space is formed between the two adjacent blocks 102, and the capping block 101 is wedged between the two adjacent blocks 102 to form a lining ring. Inclined wedge surfaces 21 are set at both ends of the capping block 101, and correspondingly, a mating surface corresponding to the wedge surface 21 is set at one end of the adjacent block 102 connected to the capping block 101.

[0037] The two sides of the capping block 101 are provided with wedge-shaped surfaces 21 to form a wedge structure. Preferably, the capping block 101 is located at the top position, so as to lift the gap between the adjacent blocks 102 from the top. Preferably, the number of standard blocks 103 can be set to one, two, three or four to adapt to tunnel diameters of different axial diameters, and two adjacent standard blocks 103 abut against each other.

[0038] In the cross-sectional direction perpendicular to the axis of the lining ring, the arc length of the arc-shaped back plate 10 in the capping block 101 is smaller than the arc length of the inner wall surface of the side panel 40, so as to form a wedge-type installation. In addition, the cross-sectional size of the wedging end of the capping block 101 is smaller than the cross-sectional size of the other end of the capping block 101, so as to form an assembly wedge. The lining ring is composed of the connecting channel tunnel segments as a whole, which is easy to assemble and has high structural strength.

[0039] Further, at least one end panel 20 is fixed with a reinforcing plate 23, and the mounting hole 22 passes through the reinforcing plate 23. The reinforcing plate 23 and the end panel 20 are welded and fixed to form a local reinforcement structure of the end surface. The mounting hole 22 passes through the reinforcing plate 23 to improve the strength of the locking part of the locking assembly.

[0040] like Figures 2 to 7 As shown, in one embodiment, the arc-shaped back plate 10 is provided with at least one grouting hole 11 at intervals, and the grouting hole 11 is prefabricated on the connecting channel tunnel segment, so as to facilitate the connection of the grouting equipment and grouting. Optionally, one, two, three, four, six, etc. grouting holes 11 are provided. Preferably, the vertical dimension between the center line of the grouting hole 11 and one side panel 40 is greater than the vertical dimension between the center line of the grouting hole 11 and another side panel 40. The grouting hole 11 is eccentrically arranged relative to the center plane of the arc-shaped back plate 10, which can avoid the frame structure and increase the connection space of the grouting equipment. Preferably, the grouting hole 11 is installed with a plug, which is used to block the hole space. Further preferably, the grouting hole 11 can be installed with a ball valve to realize flexible installation of the opening and closing of the grouting hole 11.

[0041] Preferably, the surface of the curved back plate 10 is coated with a protective coating for protection treatment. For example, the surface of the curved back plate 10 is coated with an epoxy coating to form a surface corrosion resistance strength.

[0042] In one embodiment, the connecting channel tunnel segment 100 includes a reinforcement frame 70 fixed to the arc-shaped back plate 10 and at least one hoisting embedded part 50 fixed to the reinforcement frame 70, and the reinforcement frame 70 is connected to two adjacent reinforcement ribs 30. The hoisting embedded part 50 is used for the hoisting of the connecting channel tunnel segment to facilitate the hoisting movement and the assembly of the lining ring. The reinforcement frame 70 is fixedly connected to the arc-shaped back plate 10 and the reinforcement rib 30 to form a part of the frame structure. The hoisting embedded part 50 and the reinforcement frame 70 are fixed as one body, with high structural strength and flexible welding position. Preferably, the hoisting embedded part 50 is a tubular structural part, for example, the hoisting embedded part 50 is set as a threaded tube.

[0043] Preferably, the reinforcing frame 70 includes a top plate 71 and two support plates fixed to the top plate 71, both ends of the top plate 71 are respectively fixed to the reinforcing ribs 30, the two support plates intersect at the arc-shaped back plate 10, and the hoisting embedded parts 50 are fixed to the top plate 71 and extend toward the arc-shaped back plate 10. The top plate 71 is arranged flush with the reinforcing ribs 30 and constitutes a part of the frame structure. The support plates connect the top plate 71 and the arc-shaped back plate 10, and the hoisting embedded parts 50 are extended toward the arc-shaped back plate 10.

[0044] Furthermore, the communication channel tunnel segment 100 includes an inner lining plate 60, which extends from the side panel 40 toward the arc-shaped back panel 10. The inner lining plate 60 is fixed to the side panel 40 and is located on the opening side of the groove structure to strengthen the opening portion of the communication channel tunnel segment and improve the structural stability.

[0045] Among them, the reinforcing ribs 30 include an intersecting and fixed middle rib 33, a tangential rib 32 and a radial rib 31. The tangential ribs 32 and the radial ribs 31 are symmetrically distributed on both sides of the middle rib 33. The width of the tangential rib 32 is greater than the wall thickness of the radial rib 31. The radial rib 31 is fixed to the arc-shaped back plate 10, and the tangential rib 32 intersects with the side panel 40. The middle rib 33 is parallel to the side panel 40, and the radial rib 31 vertically connects the middle rib 33 and the side panel 40. A plurality of radial ribs 31 are distributed at intervals along the radial direction to form a frame structure. Preferably, the tangential ribs 32 and the radial ribs 31 form a T-shaped structure to improve the structural strength. Preferably, the radial ribs 31 are fixed to the inner lining plate 60.

[0046] like Figures 2 to 7 As shown, in one embodiment, the two side panels 40 are respectively configured as a convex side panel 41 and a concave side panel 42, and the convex side panel 41 and the concave side panel 42 are arranged opposite to each other. At least one partially protruding assembly boss 411 is arranged on the outer side surface of the convex side panel 41, and at least one partially recessed assembly groove 421 is arranged on the outer side surface of the concave side panel 42. The assembly boss 411 and the assembly groove 421 are arranged as complementary sealing structures adapted to the periphery to improve the curved path of the sealing curved surface.

[0047] The connecting channel tunnel segments are assembled with adjacent tunnel segments, the assembly boss 411 is engaged with the tunnel segment on one side, and the assembly groove 421 is engaged with the tunnel segment on the other side. The connecting channel tunnel segments 100 are connected in an annular structure, and the assembly groove 421 and the assembly boss 411 are located in the axial position on both sides of the lining ring. When the lining ring is combined with the tunnel segments of the adjacent ring, an axial matching seal is formed.

[0048] Preferably, the assembly boss 411 is arranged concentrically with the arc-shaped back plate 10, and the cross section of the assembly boss 411 is arranged to be trapezoidal, rectangular, triangular or arc-shaped, and the assembly groove 421 and the assembly boss 411 are complementary structures. The assembly boss 411 is a laterally protruding boss structure, and preferably, the assembly boss 411 is an isosceles trapezoidal structure to form a guiding and positioning structure. Preferably, the assembly boss 411 is in an arc shape to fit and match adjacent tunnel segments, thereby forming a sealing loop. The assembly groove 421 and the assembly boss 411 are complementary structures, and adjacent lining rings can form a complementary fit.

[0049] In another embodiment, both side panels 40 are provided with a mounting groove 421, which is arc-shaped and concentric with the arc-shaped back panel 10, and the cross section of the mounting groove 421 is set to be trapezoidal, rectangular, triangular or arc-shaped. The mounting groove 421 is recessed from the side panel 40, and a sealing member is set in the mounting groove 421 between adjacent lining rings to form a clamping and extruding seal. The sealing member is an elastic member, and the two tunnel segments are closed to extrude the sealing strip to form a gap seal.

[0050] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0051] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A connecting channel tunnel segment, characterized in that: The connecting channel tunnel segment comprises an arc-shaped back plate, an end plate fixed to the arc-shaped back plate, a side plate and a plurality of reinforcing ribs, wherein the end plate, the side plate and the plurality of reinforcing ribs constitute a frame structure, the plurality of reinforcing ribs are distributed at intervals along the radial direction of the arc-shaped back plate, and the end plate is provided with at least one mounting hole; A plurality of communication channel tunnel segments are connected and combined by a locking assembly to form a complete ring, and an end panel of at least one of the communication channel tunnel segments is arranged as an inclined wedge-shaped surface.

2. The communication channel tunnel segment according to claim 1, characterized in that: The arc-shaped back plate is provided with at least one grouting hole at intervals.

3. The communication channel tunnel segment according to claim 1, characterized in that: The communication channel tunnel segment includes a reinforcement frame fixed to the arc-shaped back plate and at least one hoisting embedded part fixed to the reinforcement frame, and the reinforcement frame is connected to two adjacent reinforcement ribs.

4. The communication channel tunnel segment according to claim 1, characterized in that: The surface of the curved back plate is coated with a protective coating.

5. The communication channel tunnel segment according to claim 1, characterized in that: The communication channel tunnel segment includes an inner lining plate, and the inner lining plate extends from the edge of the side panel toward the arc-shaped back panel.

6. The communication channel tunnel segment according to claim 1, characterized in that: The two side panels are respectively arranged as a convex side panel and a concave side panel, the convex side panel is provided with at least one partially protruding assembly boss, and the concave side panel is provided with at least one partially recessed assembly groove, the connecting channel tunnel segment is assembled with the adjacent tunnel segment, the assembly boss is engaged and positioned with the tunnel segment on one side, and the assembly groove is engaged and positioned with the tunnel segment on the other side.

7. The communication channel tunnel segment according to claim 6, characterized in that: The assembly boss is arranged concentrically with the arc-shaped back plate, the cross section of the assembly boss is arranged to be trapezoidal, rectangular, triangular or arc-shaped, and the assembly groove and the assembly boss are complementary structures.

8. The communication channel tunnel segment according to claim 1, characterized in that: The two side panels are both provided with an assembly groove, the assembly groove is arc-shaped and is arranged concentrically with the arc-shaped back panel, and the cross section of the assembly groove is arranged to be trapezoidal, rectangular, triangular or circular.

9. The communication channel tunnel segment according to claim 1, characterized in that: The reinforcing ribs include an intersecting and fixed middle rib, a tangential rib and a radial rib. The tangential ribs and the radial ribs are symmetrically distributed on both sides of the middle rib. The width of the tangential rib is greater than the wall thickness of the radial rib. The radial rib is fixed to the arc-shaped back plate, and the tangential ribs intersect with the side panel.

10. The communication channel tunnel segment according to any one of claims 1 to 9, characterized in that: The connecting channel tunnel segments are respectively arranged as a capping block, two adjacent blocks and at least one standard block forming a lining ring, wherein both ends of the capping block are arranged as wedge-shaped surfaces, the capping block is wedged between the two adjacent blocks, the standard block abuts and supports the two adjacent blocks, and the two adjacent connecting channel tunnel segments are locked and connected by a locking assembly.

11. The communication channel tunnel segment according to any one of claims 1 to 9, characterized in that: The connecting channel tunnel segments are made of metal materials, composite materials or polymer materials.

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